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1. Use Default If Unwired Linked Input Tunnel d Numeric Palette b aaee Control Properties Indicator 6 I have dropped a Compound Arithmetic node in my VI right clicked on an input or output and selected the Invert option allowed by LabVIEW Why is this not working when running the code The current version of the Arduino Compatible Compiler for LabVIEW does not support Invert on the Compound Arithmetic node s inputs or outputs You will need to use the LabVIEW Not primitive to invert the data before or after the compund arithmetic node 7 I have wired an enumerated constant with two elements to an Increment node I would expect the output of the Increment to go back to the first element of the enumerated constant when incremented But that is not happening Why In the current version of the Arduino Compatible Compiler for LabVIEW enumerated data types do not wrap around back to the first element when its last element is incremented by one Care must be taken to avoid the inclusion of that logic This also applies for the decrement node 8 I wire a string constant 2223 to a Decimal String to Number primitive I also wire a constant of 2 to the Offset input terminal I expected to see 23 in the output of the primitive but I am getting 2223 instead Why The current version of the Arduino Compatible Compiler for LabVIEW does not support the offset input terminal for any String to Number primitive VI The entire string in
2. 2015 TSXperts Aledyne All rights reserved Analog Read VI Installed With Arduino Compatible Compiler for LabVIEW Reads the value from the specified analog pin in pin The Arduino board contains a 6 channel 8 channels on the Mini and Nano 16 on the Mega 10 bit analog to digital converter This means that it will map input voltages between 0 and 5 volts into integer values between 0 and 1023 This yields a resolution between readings of 5 volts 1024 units or 0049 volts 4 9 mV per unit The input range and resolution can be changed using Analog Reference vi It takes about 100 microseconds 0 0001s to read an analog input so the maximum reading rate is about 10 000 times a second pin 0 4 data error in no error 11 FN 15 error out Lvs pin defines which analog pin on the Arduino to read data from Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints
3. 0 error out File Name holds the file name for the file that will be open TFH Append Timestamp Set this control to True if a timestamp is to be appended to the end of the data array line Arduino target board as well as SD Card shield TF I Lvs CS Pin is the SPI Chip Select pin Refer to the Arduino documentation on SPI at http arduino cc en Reference SDbegin Make sure to match the CS Pin that is appropriate for your combination of abe TimeStamp is the string that will be appended to the end of the Data Array line and logged to the file It is only valid if the Append Timestamp control is set to True Data is a byte array of data read from the serial port This can be converted to a string if the data being received is ASCII by using the Byte Array to String LabVIEW primitive Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Fy status is TRUE X if an erro
4. Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Bytes is the total number of bytes available for reading Bas error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be
5. Loop indefinitely 3 Call Digital Write VI to write a high voltage 5V to the digital pin Keep the output on for 100ms Call Digital Write VI to write a low voltage 0V to the digital pin 6 Keep the output off for 100ms NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target 2015 TSXperts Aledyne All rights reserved Analog Input Temperature Example Installed With Arduino Compatible Compiler for LabVIEW This example shows how to read the voltage of an Arduino analog input pin which has a LM 35 or TMP35 temperature sensor connected to it and converts the acquired voltage to Celsius If the temperature is larger than the set threshold on the front panel the digital output specified is set to high Otherwise it is set to low This can be connected to an LED to see that the analog input is being acquired properly In order to use this example a temperature sensor must be connected to an analog input specified on the front panel Instead of wiring an LED the onboard LED wired to digital pin 13 can also be used Output Digital Pin 73 Input Analog Pin g Vs 4 V to 20 V OUTPUT OmV 10 0 mv C Temp Threshold C 7 30 Page 86 of 110 5V 1024 counts input C LOmV Temp C Output Digital Pin vst E BI B n er gt p Le ie Pin Mode vi Analog Read vi Temp Threshold C DBL Input Analog Pin b Lid 1
6. The RGB LED Palette includes APIs for writing data to 1 wire WS2811 and WS2812 controllers on RGB LED strips similar to the ones found here A single Arduino digital output pin must be used to interface to this palette 2015 TSXperts Aledyne All rights reserved RGB LED Initialize VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the strip LED class If only one LED strip is used then this should be set to 0 Up to 3 LED strips can be created and addressed on different pins in the same application using a different instance number This is specific to the WS2811 and WS2812 controllers Instance 1 Number of Pixels 0 Pin 5 i a ae 15 error out Mode 7 error in no error 11 Lvs Instance is a reference to the instance of the RGB LED class vie Number of Pixels specifies how many pixels or LEDs exist on the strip or how many you want to control This can be set to any number less than the number of LEDs on the strip s if you don t need all of them to illuminate Pin specifies which pin on the Arduino that the Data pin on the LED strip is connected to vie Mode specifies the frequency and the RGB data packing order of the LED strip Check your LED strip documentation for details For the WS2812 controller this is 800kHz For most NeoPixel products the wiring is GRB For vi FLORA pixels with the WS2811 driver it is usually 400kHz RGB Sach error in ca
7. Lvs Instance is a reference to the instance of the LCD class E Data to write to the LCD Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the
8. Pin Mode vi Attach Timerl Interrupt vi period us 1 Call Pin Mode vi to set the output digital pin to an output 2 Call Attach Timerl Interrupt vi to attach the callback VI to a timer interrupt at the specified period in microseconds 3 Run indefinitely in a loop Only the attached callback vi will execute at the specified period This loop is not even necessary and can be removed but is shown here to make a point that the processor will keep running in the background since the interrupt has been enabled NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target Callback VI 2 Invert the state and set the new LED output blink 2015 TSXperts Aledyne All rights reserved Tone Play Song Example Installed With Arduino Compatible Compiler for LabVIEW Page 90 of 110 This example shows how to use the tone generator on a digital pin to play a song through a piezo buzzer The temp of the song can also be adjusted The use of a subvi is also demonstrated as a lookup table to obtain the frequency of a specified tone The tempo of the song can be changed by adjusting the control on the front panel lower the number to make the song play faster and re download to observe the changes to the song Digital Pin FE tempo delay 150 D EJ EJ Ge Ge Ge Ged Gel Ge o ES Eo Ged Ged Ged Ged Ged Ged do f do a an g m do T do g
9. g f Digital Pin US ie Pin Mode vi 2015 TSXperts Aledyne All rights reserved Serial Monitoring GUI Example Installed With Arduino Compatible Compiler for LabVIEW 1 Call Pin Mode vi to set the digital pin to an output 2 Calculate the require duration of the note based on the tempo 3 If a note is not defined then just delay by the duration specified 4 If a note is defined call the Find Note subvi to return the frequency of the note 5 Call Tone Start vi with the found frequency and the required duration based on the tempo lower number is faster 6 We must wait until the tone stops before proceeding since the tone is played in parellel execution using a timer 7 Add a small pause before going to the next note for a smoother audible transition NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target Page 91 of 110 The Serial Monitoring GUI example shows best practices for a remote monitoring system with two VIs one running on a host PC and the other running embedded in the Arduino compatible target The example includes two way serial communication between the host PC VI and the Arduino compatible target VI The host PC monitors and charts a specific variable of interest that is updated in the embedded Arduino target VI The host PC VI also includes the ability to pause and resume the sending of data points by the
10. status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program
11. NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints success indicates whether or not the operation was successful Page 69 of 110 error out passes error or warning information out of a VI to be used by other VIs Right click the error out i
12. NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SPI Set Clock Divider VI Installed With Arduino Compatible Compiler for LabVIEW Sets the SPI clock divider relative to the system clock On AVR based boards the dividers available ar
13. 4 Call SD File Open vi to open a reference to the file named log tt All subsequent operations to this file will require this reference as an input 5 Call SD File Write String vi to demonstrate the logging of a string to the log ttt file 6 Call SD File Write Array vi to demonstrate the logging of an array of bytes to the log ttt file The Array of Bytes constant contains the ASCI representation of the sentence ACC4LV Rocks 7 Call SD File Close vi to close the reference to the log bt file NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while de i 2015 TSXperts Aledyne All rights reserved SPI MAX6675 Thermocouple Example Installed With Arduino Compatible Compiler for LabVIEW This example demonstrates how to read the temperature from a MAX6675 SPI K Type Thermocouple to Digital converter The temperature is read in Celsius then converted to Fahrenheit and written to the serial port every 200ms On AVR targets only one Chip Select pin pin 10 is supported by the SPI peripheral however on Due targets other CS Pins can be selected on the front panel before downloading Page 106 of 110 onrnony oo MISO GND CS Pin CS Pin Us I L a EJ 0 13665 g 25s TEE ae DUMMY 12 BIT THEAMOCOUPLE SIGH BIT TEMPERATURE READING INPUT mee stare Bit s futisfiz ujolete r7tetsts st 2 1 o debe TEE ET ETT ee state 1 Call Serial Open vi to open a seri
14. Numeric The way LabVIEW handles this scenario is such that the output of the increment function will never change value as a new variable is created to hold the input tunnel value which is not connected to the global variable Since the Arduino Compatible Compiler for LabVIEW implements very stringent optimization algorithms to try and reduce the utilization of the Arduino target internal memory on this situation the input tunnel variable is actually the global variable itself as a copy of the global variable is not made to hold the input tunnel value The issue that this optimization will create on this particular case is that the output of the increment function will continuously increment the value as its output updates the value of the global variable and its input receives the same global variable in every iteration On this case the workaround is very simple just move the global variable to the inside of the loop In general though care should be taken when a global variable is being passed in as an input to a structure so this situation can be avoided Other Non Supported Features There are some non supported data types and features that are specific to supported nodes Please refer to the documentation for the supported functions for more information on each one Page 17 of 110 2015 TSXperts Aledyne All rights reserved Arduino Compatible Compiler for LabVIEW Licensing Options The Arduino Compatible Compiler for LabVIEW
15. Save As Ctrl Shift S S r 09 USB gt Page Setup Ctrl Shift P 10 StarterKit Print Ctrl P ArduinolISP Preferences Ctrl Comma Bridge r Quit Ctrl Q EEPROM Esplora Ethernet gt Firmata gt GSM gt Robot Control Robot Motor gt SD gt Servo gt SoftwareSerial gt SPI gt Stepper gt TFT gt WiFi gt Wire gt analogShield master passthrough Deleteme quantization FHT ramp pue mno amp b eee sampleRate If you are unable to see the examples for the library you just installed close and re open the Arduino IDE If that still doesn t solve the issue the installation of the library was not successful and the process above will need to be repeated The last step to verify the library is functional with your hardware is to actually run one of its shipping examples Since the libraries are usually open source it is important to make sure they work as expected with the hardware in the Arduino IDE prior to porting it to the Arduino Compatible Compiler for LabVIEW It is important not to skip any of the described tasks as they may save you a lot of time in the end Step 2 Identifying the Functions to Port Once the step described above is completed the next step is to identify which of the library s functions will be ported to the Arduino Compatible Compiler for LabVIEW This step requires familiarity with C code as the library s shipping examples code will need to be understood The main
16. The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed o
17. a em L kanmi AAT goog Hi i H i H H H i h i H i i i H H H p H H H i H i H i H p i i H pi i p i i H i H H H i H i H H H i H H H i H H H H H H H H H H H H H H H H i H H H i i H H H H i H H i H i H i H i H t 9 i 1 Call Pin Mode vi to set the output digital pin to an output Open the Serial port to send out accelerometer data for debugging 3 Call Analog Read vi to acquire voltage from the x axis channel Call Analog Read vi to acquire voltage from the y axis channel 5 Call Analog Read vi to acquire voltage from the z amis channel 6 Convert 10 bit value representing the voltage to actual voltage based on a 5V scale Even though the sensor is a 33V sensor we are using the 5V analog reference voltage 5V L024 counts input 0 004882814 input Subtract 0g Bias Level which is approximately mid rail voltage or 1 65 refer to accelerometer datasheet 8 Convert y z acceleration to roll and pitch in radi
18. a large array into flash memory instead of into SRAM where it would normally go The data stored in program memory is only available as read only to your program This is a good way to get use of more memory for things like lookup tables You must use the Read Program Memory functions to retrieve the data from your program at run time NOTE The input array must be a control or constant and must be directly wired to this function as well as the Name to assign to the array Instructions 1 If this example has been loaded from the Arduino Compatible Compiler for LabVIEW simply select Compile and Download Otherwise open Tools gt Arduino Compatible Compiler for LabVIEW in LabVIEW then select File gt Load VI and select this VI and then Compile and Download 2 Open the Serial Monitor and observe the data being written matches the data stored in the constant array below 10kElement U16Array F 1 o Jo jii T wE Nee as a Notice in the compilation results that the program space is almost completely used because in addition to the code the input 10 000 element U16 array 20 000 bytes is being stored in program space This accounts for 62 of available program space and the additional 12 taken by the actual program Therefore it can be known at compile time if there is enough memory to fit both the code and the lookup table in memory Compiling C Projects Arduino LabVIEW4Arduino examples Memory Optimization Saving Read
19. code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about Page 51 of 110 the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C write U32 VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Write the input Data to the LCD The supported datatypes include string boolean integer and floating point data types Instance 1 Data 0 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD cl
20. no error LS 6 1 Create an array of 20 elements and updates the Global Varible with the created array 2 Executes subVI that operates in place on the Global Variable without creating an extra memory copy for the array 3 Retrieves the updated array and passes it onto the Array Out indicator The functionality of the code above is the equivalente of the code below but in the code below an extra memory copy of the array is created inside the subVI Therefore the code above is more memory efficient NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino targ error in no error Saving Read Only Data to Program Memory Example Installed With Arduino Compatible Compiler for LabVIEW This example demonstrates how to store data in flash program memory instead of SRAM and read it back within a running program This provides a way to tell the compiler to put a large array into flash memory instead of into SRAM where it would normally go The data stored in program memory is only available as read only to your program This is a good way to get use of more memory for things like lookup tables You must use the Read Program Memory functions to retrieve the data from your program at run time Overview Demonstrates how to store data in flash program memory instead of SRAM and read it back within a running program This provides a way to tell the compiler to put
21. 3 y 25 Number of LEDs Ao Digital Pin iat gt p c z Page 103 of 110 Instance 0 Number of LEDs Luh Digital Pin Ugi a Mode m A delay ms ust 1 Call RGB LED Initialize to set the Mode digital pin and number of LEDs for the strip 2 Loop for 256 counts of color This is how many adjustments are made in color from red to green then to blue 3 Loop for every LED on the strip to set a slightly different color Calculate the RGB color using a dial input 0 255 and translating to an RGB representation 5 Write the color to memory This does not actually clock out the data yet 6 After all LED color values have been updated in memory now write the data to all LEDs on the strip 7 Delay before changing color again 8 Loop indefinitely NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino targ 2015 TSXperts Aledyne All rights reserved SD Card Read Data GUI Example Installed With Arduino Compatible Compiler for LabVIEW The SD Card Read Data example is to be executed in conjunction with the SD Card Log Data shipping example The project shows how to read data previously written to a SD Card and to transfer this data via serial communication The project include two VIs one running on a host PC and the other running embedded in the Arduino compatible target Refer to your specific SD Card Shie
22. 4 Tone Generation a Play Song Example This example shows how to use the tone generator on a digital pin to play a song through a piezo buzzer The temp of the song can also be adjusted The use of a subvi is also demonstrated as a lookup table to obtain the frequency of a specified tone The tempo of the song can be changed by adjusting the control on the front panel lower the number to make the song play faster and re download to observe the changes to the song 5 Serial a Monitoring GUI Example This example shows best practices for a remote monitoring system with two VIs one running on a host PC and the other running embedded in the Arduino compatible target The example includes two way serial communication between the host PC VI and the Arduino compatible target VI The host PC monitors and charts a specific variable of interest that is updated in the embedded Arduino target VI The host PC VI also includes the ability to pause and resume the sending of data points by the Arduino compatible target VI The target VI generates a point by point sine wave that is charted by the host PC VI 6 IZC LCD a 4 Line LCD Example This example demonstrates how to initialize and write data to an I2C based LCD screen To use the I2C LCD library most parallel LCDs can be used with a low cost Sainsmart LCD I2C Adapter The purpose of the adapter is to cut down the amount of conductors needed by using a serial I2C interface to the LCD This example assum
23. 8 Bits No Parity 1 Stop Bit Y order j MSB First Clock Divider 5 NOTE Change this to 21 on Due targets Data Mode NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target 2015 TSXperts Aledyne All rights reserved I2C DS1307 Real Time Clock Example Installed With Arduino Compatible Compiler for LabVIEW This example demonstrates how to set and read the current time from a DS1307 Real Time Clock RTC This RTC is used on the Arduino Page 107 of 110 Datalogger Shield which also comes equipped with an SD card slot To set the current time enable the Set control and populate the date structure with the current date time then download the code first Then turn off Set and download again to read the time only The current date time will be maintained after power cycle if the battery is installed in the shield DS1307 Register Table This is the table showing the register layout for the date time stored in the DS1307 This example only shows writing and reading of register addresses 0 7 eee ENY PE S eS ee Seconds 00 59 0 Always reads back as 0 DS1307 Real Time Clock VI Datalogger Shield seconds 0 59 minutes 0 59 hour 0 23 Day unused Date 1 31 Month 1 12 re pe Year 0 99 Page 108 of 110 Es o FD om 3 om E gt om 3 of 3 N Es r FS j 2 a 3 on Pe ES A
24. Available VI Installed With Arduino Compatible Compiler for LabVIEW This VI returns the number of bytes available for reading from the SD Card file Reference 0 4 bytes 1010 error in no error 11 15 error out Ez Reference is the reference to the SD Card in use Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints
25. Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Serial 3 Open VI Installed With Arduino Compatible Compiler for LabVIEW Initializes serial communication on Serial Port 4 of the Arduino board All Arduino boards have at least one serial port also known as a UART or USART Serial It communicates on digital pins 0 RX and 1 TX as well as with the computer via USB Thus if you use these functions you cannot also use pins O and 1 for digital input or output The Arduino Mega has three additional serial ports Serial 1 on pins 19 RX and 18 TX Serial 2 on pins 17 RX and 16 TX Serial 3 on pins 15 RX and 14 T
26. Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints I2C Attach Request Interrupt VI Installed With Arduino Compatible Compiler for LabVIEW Specifies a callback VI to call in VI Reference when a master requests data from this slave device The callback VI will be called when the master requests data and should not take in any parameters and returns nothing Inside the attached VI and Delay calls won t work and the value returned by Tick Count vis will not increment Serial data received while in the function may be lost To transfer data in and out of the callback VI global variables must be used Interface 1 VI Reference 0 error
27. Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right cli
28. NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Page 77 of 110 code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and sel
29. Only Data to Program Memory vi Running interpreter Finished Generating downloadable program Finished Compiling Finished Loading configuration Initializing packages Preparing boards Verifying Sketch uses 24 074 bytes 74 of program storage space Maximum is 32 256 bytes Global variables use 212 bytes 10 of dynamic memory leaving 1 836 bytes for local variables Maximum is 2 048 bytes Page 94 of 110 Read Program Memory U16 Define a large read only array in a constant or control This must be directly wired to the Write Program Memory vi Chose a name for the array and reserve a space in Program Memory for the array For demonstration read each element back from the array indexing it by the name previously defined and indexing each element Ensure the proper datatype instance is select for how the data should be read Convert the read data to a String and send out the serial port to show the read data matches what was stored in read only memory 2015 TSXperts Aledyne All rights reserved Debugging Memory Crash Example Installed With Arduino Compatible Compiler for LabVIEW Demonstrates how to use the Debug Tool API VI in conjunction with the Arduino Compatible Compiler for LabVIEW Serial Monitor to debg an embedded Arduino VI It also demonstrate how to look for memory leaks on an application that doesn t generate the expected results even though it doesn t generate a compi
30. Queue Begin Transmission and queues the input data only Does not send a stop or restart so that additional write calls can be made before ending the transmission Queue and End Queues the input data then calls End Transmission after queuing the data to force all data to be sent and forces a stop or restart Assumes a Begin Transmission has been previously called Queue Only Only Queues the input data and does NOT call Begin or End Transmission before or after queuing the data Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the
31. To 0 Greater Than 0 Less Than 0 Greater Or Equal to 0 Less Or Equal To 0 Select Max amp Min 2015 TSXperts Aledyne All rights reserved Timing Palette Installed With Arduino Compatible Compiler for LabVIEW Timing z a E Tick Count Tick Co ie Wait ms Delay Micros ao fe Delay Millis Insert Nop Read RTC Ti The Timing palette contains the following LabVIEW primitives Tick Count ms NOTE tick count resets to 0 when target is reset Page 30 of 110 Wait ms Their functionality when deployed onto an Arduino target is identical to that of LabVIEW unless otherwise specified In addition higher resolution timers and wait functions exist for micro second resolution NOTE for tick count functions the time reported is ticks from when the target started running Since the targets do not contain an on board real time clock the timer count will reset when the program is restarted Using any timing primitive outside this palette will result in a compilation error 2015 TSXperts Aledyne All rights reserved Delay Millis VI Installed With Arduino Compatible Compiler for LabVIEW Pauses the program for the amount of time in milliseconds specified in delay This is similar to the Wait ms LabVIEW primitive however error in and out terminals are included here for flow control ee 6 lll error in no error 8 0 error out A delay in microseconds to halt program execution T
32. VI and a callback Interrupt VI global variables must be used Please refer to the examples to demonstrate how to do this For example an interrupt can be enabled for a digital input pin transition and the even can trigger running of a callback VI 2015 TSXperts Aledyne All rights reserved Enable Interrupts VI Installed With Arduino Compatible Compiler for LabVIEW Re enables interrupts after they ve been disabled by Disable Interrupts Interrupts allow certain important tasks to happen in the background and are enabled by default Some functions will not work while interrupts are disabled and incoming communication may be ignored Interrupts can slightly disrupt the timing of code however and may be disabled for particularly critical sections of code error in no error 11 15 error out Page 41 of 110 Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Fy
33. Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Page 78 of 110 Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Error indicates the status of the transmission 0 success 1 data too long to fit in transmit buffer 2 rec
34. a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C write Boolean VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Write the input Data to the LCD The supported datatypes include string boolean integer and floating point data types Instance 1 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class Data to write to the LCD Sesh error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when
35. a serial I2C interface to the LCD This example assumes a Sainsmart I2C LCD or I2C Adapter is being used This example has been tested with the following LCDs SainSmart IIC I2C TWI Serial 2004 20x4 LCD Module Shield The LiquidCrystal_I2C Express vi initialization is demonstrated here which hardcodes the interface pins between the LCD module and the parallel LCD Characters Lines 7 20 34 SainSmart I2C LCD Adapter can be used to convert the parallel interface of most LCD s to an I2C interface Some SainSmart LCD s already have this converter built into the backside of the LCD like the one pictured above which is a 20x4 LCD Module Shield These adapters are known to either use I2C Address 0x3F 63 or 0x27 39 Make sure to change the address on the block diagram accordingly Val wa De ne we Ne ze Re Re IERTE 1982AY 200 23488H2 RC www Page 96 of 110 LCD Reference 0 a Char 0 E aracters z aed 2 inep m Lines 16 i 3 14159265359 Arduino PC LCD 3 141159265359 1 Call LiquidCrystal_2C Express vi to initialize the LCD for the correct number of characters and lines and to configure the 2C address and pins on the SainSmart 2C LCD Adapter board The backlight pin and homing is also handled in the Express VI 2 Call LiquidCrystal_2C write String vi to write a string to the first line 3 Set the cursor to the second line using LiquidCrystal_2C set cursor vi and write the loop counter to the first
36. about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and selec
37. also sets the data rate in bits per second baud for serial data transmission For communicating with the computer use one of these rates 300 600 1200 2400 4800 9600 14400 19200 28800 38400 57600 or 115200 You can however specify other rates An optional second argument configures the data parity and stop bits The default is 8 data bits no parity one stop bit Speed 0 T 4 Instance Serial Settings 5 error in no error 11 15 error out EA Speed is the baud rate of the serial port T Serial Settings defines the data width parity and stop bits of the serial port Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Fy status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu f
38. and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints I2C Available VI Installed With Arduino Compatible Compiler for LabVIEW Returns the number of bytes available for retrieval with I2C Read vi or I2C Read All Bytes vi This should be called on a master device after a call to I2C Request From vi or on a slave inside the I2C Attach Receive Interrupt Callback VI Interface 1 4 Bytes Available 70101 error in no error 11 b 15 error out Lvs Interface is the reference to the I2C port Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select E
39. are not supported due to low memory constraints Instance is the reference to the serial port This should be passed into subsequent serial port VIs This can also be hardcoded for each subsequent serial access as follows Serial 0 Serial 1 1 Serial 2 2 and Serial3 3 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select
40. are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Digital Palette Installed With Arduino Compatible Compiler for LabVIEW Digital z Digital Read Digital Write Digital Read Digital Write iS Pin Mode This palette contains APIs for configuring digital pins and reading and writing digital inputs and outputs Pin Mode vi must be used before using Digital Read or Write in order to configure the pin as an input or output If used as an input a pin can also be configured to use an internal pull up resistor 2015 TSXperts Aledyne All rights reserved Digital Read VI Installed With Arduino Compatible Compiler for LabVIEW Reads the value from a specified digital pin and returns either high true or low false pin 0 4 state error in no error 11 15 error out Lvs pin defines which digital pin on the Arduino to read from as error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wi
41. be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SPI Close VI Installed With Arduino Compatible Compiler for LabVIEW Disables the SPI bus leaving pin modes unchanged For the Arduino Due the specified CS pin is disconnected from the SPI interface and is available again as a general I O For AVR boards the CS Pin input has no effect CS Pin 0 er
42. bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster
43. character offset 4 Set the cursor to the third line and write the pi label to the first character offset 5 Move the cursor over 3 characters past the pi label and write the value of pi using a LiquidCrystal_I2C write Double vi Notice that when writing single and double floating point numbers straight to the LCD they will automatically be written with a precision of 2 Convert the floating point number to a fractional string with a precision of 6 and now note that the precision of the string written is that specified in the conversion using LiquidCrystal_2C write String vi NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target 2015 TSXperts Aledyne All rights reserved I2C LCD 2 Line LCD Example Installed With Arduino Compatible Compiler for LabVIEW This example demonstrates how to initialize and write data to a 2 Line 16 Character I2C based LCD screen To use the I2C LCD library most parallel LCDs can be used with a low cost Sainsmart LCD I2C Adapter The purpose of the adapter is to cut down the amount of conductors needed by using a serial I2C interface to the LCD This example assumes a Sainsmart I2C LCD or I2C Adapter is being used This example has been tested with the following LCDs SainSmart IIC I2C TWI Serial 2004 16x2 LCD Module Shield os Tes re ern e ONTNOUY OO 8 3I pe Page 97 of 110 SainSmart I
44. checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due
45. click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Page 34 of 110 Read Program Memor
46. cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints I2C Attach Receive Interrupt VI Installed With Arduino Compatible Compiler for LabVIEW Specifies a callback VI to call in VI Reference when a slave device receives a transmission from a master The callback VI will be called when the slave receives data and should take a single U16 parameter the number of bytes read from the master and return nothing Inside the attached VI and Delay calls won t work and the value returned by Tick Count vis will not increment Serial data received while in the function may be lost To transfer data in and out of the callback VI global variables must be used Interface 1 VI Reference 0 Rx error in no error 11 15 error out E VI Reference is the reference to the callback VI that will run when the interrupt occurs ET Interface is the reference to the I2C port Se error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster
47. cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LF Yq status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only use
48. communication plust termination character n 8 Call Serial Close vi to close the serial connection to the host PC NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target 2015 TSXperts Aledyne All rights reserved SD Card Log Data GUI Example Installed With Arduino Compatible Compiler for LabVIEW The SD Card Log Data example demonstrates how to initialize and write data to SD Card Shield Once this example is executed successfully you can run the SD Card Read Data vi shipping example to retrieve the data saved in the SD Card by this example and plot it on the screen of a host VI Page 105 of 110 ome Eh i P oe d if D c m a i SD Card Shield Arduino SD Card Arduino Compatible Target VI Note SD Lib uses 8 3 filenames which have at most 8 characters optionally followed by a period and a filename extension of at most three characters File and directory names are uppercase although ems that use the 8 3 standard are usually case insensitive Bo Iles Jor Jor J52 foo fs E b firs foo popise 3 Jo _ Examp 7 a za Ro za D Fieve semg GO Fie Wet rey L J B 5 1 Call SD Card Open vi to iopen a reference to the SD Card 2 Call SD Create Directorty vi to create a directory named Examp in the SD Card file system 3 Call SD Remove File vi to remove any previous instance of file named log txt
49. control dataflow in a program since cluster datatypes are not supported due to low memory constraints Fy status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cl
50. control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within t
51. control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the
52. control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Bas error out passes error or warning information out of a V
53. data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints success indicates whether or not the operation was successful zs error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and sel
54. data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Error indicates the status of the transmission 0 success 1 data too long to fit in transmit buffer 2 received NACK on transmit of address 3 received NACK on transmit of data 4 other error Sa error out passes error or warning information out of a VI to be used by other VIs
55. dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read
56. datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data withi
57. datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Attach Interrupt VI Installed With Arduino Compatible Compiler for LabVIEW Specifies a callback VI to call in VI Reference when the specified Interrupt occurs Mode specifies the pin transition mode that causes the interrupt to occur Replaces any previous VI that was attached to the interrupt Most Arduino boards have two external interrupts numbers 0 on digital pin 2 and 1 on digital pin 3 Refer to table on
58. delay error in no error 11 _ 15 error out Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints _TF status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are onl
59. deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Attach Timer1 Interrupt VI Installed With Arduino Compatible Compiler for LabVIEW Enables Timer1i and specifies a callback VI to call in VI Reference when the timer interrupt occurs The period specifies how often to trigger the callback in mi
60. deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Fy status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more informa
61. due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Digital Write VI Installed With Arduino Compatible Compiler for LabVIEW Write a high true or low false state to a digital pin If the pin has been configured as an OUTPUT with Pin Mode vi its voltage will be set to the corresponding value 5V or 3 3V on 3 3V boards for high OV ground for low If the pin is configured as an INPUT Digital Write vi will enable high or disable low the internal pullup on the input pin It is recom
62. due to low memory constraints result string contains the input string with all occurrences of search string replaced with replace string Seo error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for fl
63. error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Czy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sas error out passe
64. for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints position is the current file position returned by the function call Page 65 of 110 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that n
65. for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select
66. for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information a
67. from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due
68. from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Interface is the reference to the I2C port This should be passed into subsequent 12C port VIs Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program si
69. from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Analog Palette Installed With Arduino Compatible Compiler for LabVIEW Analog z Analog Read Analog Read Analog Write Analog Write Analog Refer This palette contains APIs for configuring analog pins and reading and writing analog voltages For Analog Write on a target without a DAC this will output a pulsed width modulated PWM output on a digital pins Some targets like the Due have a true analog output via a DAC so the same API can be used to produce an analog voltage output Changing the resolution of read and write is also only supported on the Due target
70. front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SPI Transfer VI Installed With Arduino Compatible Compiler for LabVIE
71. front panel for interrupt numbers for each Arduino board Also refer to http arduino cc en Reference AttachInterrupt for the most recent updates for supported boards and interrupts The Arduino Due board has powerful interrupt capabilities that allows you to attach an interrupt function on all available pins You can directly specify the pin number in Attach Interrupt vi Note Inside the attached VI any Delay calls won t work and the value returned by Tick Count vis will not increment Serial data received while in the function may be lost To transfer data in and out of the callback VI global variables must be used Interrupt 0 VI Reference 5 Mode 7 15 error out error in no error 11 Lvs Interrupt defines the interrupt number of the processor E VI Reference is the reference to the callback VI that will run when the interrupt occurs Mode defines when the interrupt should be triggered Options are defined as follows LOW to trigger the interrupt whenever the pin is low CHANGE to trigger the interrupt whenever the pin changes value RISING to trigger when the pin goes from low to high FALLING for when the pin goes from high to low The Due board allows also HIGH to trigger the interrupt whenever the pin is high Arduino Due only Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Righ
72. idea behind this step is to identify which of the library s functions are API functions and which ones are internal functions used by the API functions You don t necessarily need to port all library s functions to LabVIEW though you could but porting just the main API functions will make for a cleaner and easier to understand and utilize the LabVIEW library Since we are using Digilent s Analog Shield on this User Guide let s investigate the first shipping example from the list passthrough Here it is the source code of the example include lt analogShield h gt Include to use analog shield include lt SPI h gt required for ChipKIT but does not affect Arduino void setup no setup unsigned int count O Page 19 of 110 void loop count analog read 0 read in on port labeled INO analog write O count write out the value on port labeled OUTO The code above basically reads analog input channel O stores the value into a variable named count and write the value stored in count to analog output channel 0 This example shows very two API functions very clearly analog read and analog write Let s take a look at the second shipping example from the list quantization The source code of the example follows include lt analogShield h gt Include to use analog shield include lt SPI h gt required for ChipKIT but does not affect Arduino void setup no setup unsig
73. if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes
74. in no error 11 15 error out E VI Reference is the reference to the callback VI that will run when the interrupt occurs Lvs Interface is the reference to the I2C port Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select
75. in Program Memory with the specified Name 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or rea
76. in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the d
77. in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints I2C Read VI Installed With Arduino Compatible Compiler for LabVIEW Reads one byte from the specified I2C interface This vi must be repetitively called while I2C Available vi returns non zero bytes available Interface 1 4 Data s error in no error 11 15 error out Dy Interface is the reference to the I2C port Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control d
78. in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 1324 code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more Page 37 of 110 information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints error out passes error or warning inf
79. information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD Remove File VI Installed With Arduino Compatible Compiler for LabVIEW Removes the input File from the SD Card File 0 4 success error in no error 11 15 error out abe File holds the file that will be removed from the SD Card Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints FY status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error
80. information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot b
81. is offered in two versions Home and Standard There are no functional differences between the two versions of the tool All supported LabVIEW primitives and Arduino API VIs are equally available with both versions For a complete list of all supported features of the product please refer to the product User Manual However the Home version is intended for use with the Student and Home editions of LabVIEW 2014 or later and is only licensed for use on personal home or educational projects The Standard version is licensed for use in the professional market and works with any edition of LabVIEW 2014 or later Another minor difference is that the Home version will show a watermark indicating the license is only allowed for Home or Student use as illustrated below E Arduino Compatible Compiler for LabVIEW File Compiler Tools Help a Pp y Status Arduino Uno on COMI13 The Home version of the compiler is tailored to support the makers movement home projects and academic use being offered at a considerable discount to the community The Standard version is targeted for the professional setting for applications expected to run with LabVIEW Base or Professional editions Both version options offer a 7 day evaluation period during which the user is free to run the full featured product without purchasing a license Once the evaluation period is over the user will be prompted to enter a purchased license key to continue use of the to
82. low memory constraints Sac error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wire
83. low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control
84. more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints RGB LED Set Pixel Color VI Installed With Arduino Compatible Compiler for LabVIEW Sets the pixel LED color of a single LED on the strip using an 8 b
85. not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Interrupts Palette Installed With Arduino Compatible Compiler for LabVIEW Interrupts z fo Attach Interr Detach Interr Disable Interr Enable Interr aati m Attach Timer Static VI Refe The Interrupts palette provides a way to enable and disable Arduino interrupts It is possible to link a VI as a callback to when a specified Interrupt is triggered In order to share data between a main
86. one to understand though the same concepts can be applied to other data types as well M In general the Arduino memory is divided into four different areas The code area where the compiled program sits in memory resided in Flash The globals area where global scalar variables are stored The heap where dynamically allocated variables are allocated from arrays and strings The stack where parameters and local variables are allocated from when calling functions SubVIs The global area heap and a stack are stored in SRAM SRAM is the most precious memory commodity on the Arduino Although SRAM shortages are probably the most common memory problems on the Arduino they are also the hardest to diagnose If your program is failing in an otherwise inexplicable fashion the chances are good you have crashed the stack due to a SRAM shortage The Arduino Compatible Compiler for LabVIEW handles allocating variables to each of these memory locations differently for each datatype For scalars such as integers floating point scalars and booleans that are not defined as a global or do not have a local variable reference automatic duration variables are used Automatic duration variables are allocated on the stack and come and go as subVIs are called and return The advantage to this is that if a lot of wire nodes are used it is helpful to modularize the code into smaller subVIs since nodes local to those VIs will be placed in m
87. or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Tone Stop VI Installed With Arduino Compatible Compiler for LabVIEW Stops the generation of a square wave triggered by Tone Start vi on the specified pin Has no effect if no tone is being generated This functionality is currently not supported on the Arduino Due NOTE if you want to play different pitches on multiple pins you need to call Tone Stop vi on one pin before calling Tone Start vi on the next pin pin 0 error in no error 11 15 error out Lvs pin defines which digital pin to use for tone generation Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Ex
88. out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints so
89. out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Peek VI Installed With Arduino Compatible Compiler for LabVIEW Read a byte from the file without advancing to the next one That is successive calls to peek will return the same value as will the next call to read Reference 0 4 Next Byte error in no error 11 G 15 error out Ezi Reference is the reference to the SD Card in use Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors
90. outputs and save the test VI The figure below shows a test VI created for the Write Four Channels VI we have been working through in this guide error in no error fa bees error out Then open the Arduino Compatible Compiler for LabVIEW and load the test VI you created as if you were going to compile it Then navigate to the Arduino Code menu item Once you select that menu option another window will open displaying the C code generated for the test VI Arduino Code a so uc include LVArray h include A4Lhelper h include lt analogShield h gt include lt SPLh gt void setup unsigned short Const296 unsigned short Const244 unsigned short Const198 unsigned short Const152 boolean Const127 Const296 3 Const244 2 Const198 1 Const152 0 Const127 false analog write Const152 Const198 Const244 Const296 Const127 void loop _ EEEEE O As you can see in the C code snippet above the tool outputs for you all declared variables as well as the current mapping of parameters based on the elements you have selected from the Inputs array in the case frame for the Write Four Channels API VI inside the Translator vi Notice how we purposely numbered the unsigned integer constants wired to the inputs so we can easily tell which one shows up in what element in the function call The order showing above is correct as Value 0 in LabVIEW is Const152 w
91. program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C write 116 VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Write the input Data to the LCD The supported datatypes include string boolean integer and floating point data types Instance 1 Data 0 error in no error 11 15 error out
92. shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints us Data is a byte array of data read from the I2C port This can be converted to a string if the data being received is ASCII by using the Byte Array to String LabVIEW primitive 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or
93. status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program sin
94. target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Position VI Installed With Arduino Compatible Compiler for LabVIEW Get the current position within the file i e the location to which the next byte will be read from or written to Reference 0 4 position error in no error 11 B 15 erro
95. the Add function is maintained intact at the output of the function only the array elements are operated on Therefore the Add function is a candidate for inplaceness Let s take the case of another LabVIEW array function widely used the Build Array Build Array Array In Array 2 m l 132 Array Out On the example above the Build Array with concatenate inputs enabled is used The output array is a one dimensional array as are the two input arrays However Array Out will have as many elements as the sum of the elements from Array In and Array In 2 Therefore inplaceness optimization can t be applied here Another inplace optimization rule to be kept in mind is inplaceness can not happen if the function modifies the size of the array inputs Now let s expand this concept onto a special node in a LabVIEW diagram a subVI 32 amp s2 Output Array Initialize Array oa Add_subvi vi In the example presented above a user created subVI named Add_subvi vi is part of the diagram The subVI receives an array input process it and returns a single array output Even though there is no branching of the input array to the subVI node the Arduino Compatible Compiler for LabVIEW does not operate inplace for this array In summary even though subVIs are a great way to make the overall LabVIEW application more readable and modular their utilization does generate memory overhead to the final compiled code that is downloaded to the Ardui
96. the file the string held by the String input Reference 0 4 bytes written String 5 4 g error in no error 11 4 15 error out Ez Reference is the reference to the SD Card in use abe String holds the string data that will be written to the file error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Page 68 of 110 status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez cod
97. to 8 bit PWM like the AVR based boards These can be changed to 12 bit resolution 2 pins with 12 bit DAC Digital to Analog Converter By setting the write resolution to 12 you can use Analog Write vi with values between 0 and 4095 to exploit the full DAC resolution or to set the PWM signal without rolling over eon error in no error 11 15 error out Lvs bits of analog data resolution Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should onl
98. to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Next Byte is the next byte stored in the SD Card in use 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino
99. used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints CSV Data is the formatted CSV line ready to be saved to a CSV file 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click
100. used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the da
101. warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Data is the 8 bit port value to write to the specified pin s port Only the data starting from Start Pin will be updated Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and t
102. when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more
103. your convenience 1 Digital a Polling a button Example This example shows how to read a digital input on an Arduino target This example assumes a switch is wired to the digital input therefore it implements debouncing when the input changes to a low state A digital output is toggled when the switch is pressed Instead of wiring an LED the onboard LED wired to digital pin 13 can also be used b Blink LED Example This example shows how to set an Arduino digital pin to an output then toggle the voltage between low OV and high 5V to drive an LED on and off Instead of wiring an LED the onboard LED wired to digital pin 13 can also be used 2 Analog a Temperature Example This example shows how to read the voltage of an Arduino analog input pin which has a LM 35 or TMP35 temperature sensor connected to it and converts the acquired voltage to Celsius If the temperature is larger than the set threshold on the front panel the digital output specified is set to high Otherwise it is set to low This can be connected to an LED to see that the analog input is being acquired properly In order to use this example a temperature sensor must be connected to an analog input specified on the front panel Instead of wiring an LED the onboard LED wired to digital pin 13 can also be used b 3 Axis Accelerometer Example This example shows how to acquire analog data from a 3 axis accelerometer that is powered from 3 3V such as an ADXL335 and conv
104. 015 TSXperts Aledyne All rights reserved String Palette Installed With Arduino Compatible Compiler for LabVIEW String 23 String Length Concatenate String Subset String Replace EEM Additional St String Const Empty String Tab Constant Carriage Ret Line Feed Co End of Line Page 28 of 110 Number String Conversion z CERE Number To Number To Fract Exp Stri Additional String Functions 2 Rotate String Reverse String The String palette contains the following LabVIEW primitives Their functionality when deployed onto an Arduino target is identical to that of LabVIEW unless otherwise specified Using any string primitive outside this palette will result in a compilation error Itis strongly recommended NOT to use string functions on small Arduino targets like the Arduino Uno which only has 2k of RAM Strings are implemented using dynamic memory allocation so it is not known until there is a runtime error if memory has been exhausted In this case the program may start to act irregular and there is no deterministic way to verify if memory has been exceeded The Check Unused RAM utility VI may be used to estimate available RAM while a program is running to determine free space String Length Concatenate String String Subset Match Pattern To Upper Case To Lower Case Number to Decimal String Number to Fractional String Decimal String to
105. 1 volts on the ATmegai68 or ATmega328 and 2 56 volts on the ATmega8 Mega Boards 0 EXTERNAL the voltage applied to the AREF pin 0 to 5V only is used as the reference 1 DEFAULT the default analog reference of 5 volts on 5V Arduino boards or 3 3 volts on 3 3V Arduino boards 2 INTERNAL1V1 a built in 1 1V reference 3 INTERNAL2V56 a built in 2 56V reference Tiny Boards 0 DEFAULT the default analog reference of 5 volts on 5V Arduino boards or 3 3 volts on 3 3V Arduino boards 1 EXTERNAL the voltage applied to the AREF pin 0 to 5V only is used as the reference 2 INTERNAL an built in reference equal to 1 1 volts on the ATmega168 or ATmega328 and 2 56 volts on the ATmega8s Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error
106. 2 LCDs wi or ge Compiling Finished DC LCD 4 Line LCD vi Test Power of Two vi me a maie om mes m are ai Once the VI has been loaded you have the option to Compile Verify Only or Compile and Download the selected VI to the configured target via the two buttons above the Status indicator i Arduino Compatible Compiler for LabVIEW Analog Input Temperature vi File Compiler Tools Help The Compile Only option is the best way to verify if the loaded LabVIEW VI successfully compiles to the selected target The Status indicator provides information about the result of the compilation that can be used for initial debugging in case the compilation fails The following figure illustrates the example of a VI that was not in a LabVIEW runnable state when compilation was attempted Other reported errors can be used to debug other compilation problems Status Compiling C Program Files x86 National Instruments LabVIEW 2014 examples Aledyne a TSXperts Arduine Compatible Compiler for LabVIEW Analog Analog Input Temperature vi Running interpreter Error The VI Selected for Compilation is not Executable Please fix the target VI and try the Compilation again Once you have tested the VI compiles you are ready to download it to the configured target To do that simply press the Compile and Download button and the LabVIEW VI will be downloaded to the target and will start execution Serial Monitor The Arduino Compatibl
107. 2C LCD Adapter can be used to convert the parallel interface of most LCD s to an I2C interface Some SainSmart LCD s already have this converter built into the backside of the LCD like the one pictured above which is a 16x2 LCD Module Shield These adapters are known to either use I2C Address 0x3F 63 or 0x27 39 Make sure to change the address on the block diagram accordingly 1982AY 200 23488H2 sainsmart I2C www sainsmart com 2C Address N E E LCD Reference k Characters Luh Lines ve Arduino 2C LCD 2015 TSXperts Aledyne All rights reserved I2C LCD Simultaneous LCD Control Example Installed With Arduino Compatible Compiler for LabVIEW 1 Call LiquidCrystal_2C vi to initialize the LCD for the correct number of characters and lines and to configure the 2C address and pins on the SainSmart 2C LCD Adapter board The pins configured here are used for configuration between the 2C Adapter board and the LCD NOT on the Arduino board 2 Call LiquidCrystal_2C set backlight pin vi to set the appropriate backlight pin connected to the 2C LCD Adapter Board 3 Call LiquidCrystal_2C set backlight vi to turn on the backlight 4 Call LiquidCrystal_2C home vi to set the cursor to the top left of the LCD 5 Call LiquidCrystal_2C write String vi to write a string to the first line 6 Set the cursor to the second line using LiquidCrystal_2C set cursor vi 7 Covert the floating point number to a fractiona
108. ALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to
109. Arduino compatible target VI The target VI generates a point by point sine wave that is charted by the host PC VI Host PC VI ae Page 92 of 110 1 Call Compiler vi to compile and download to the Arduino target the Serial Monitoring GUI Arduino Target vi Configure the serial communication parameters Flushes the serial buffer of any left over bytes Execute the monitoring code at every 150ms Check serial port for incoming bytes If there are bytes at the serial port read them and display them in the Waveform Chart Read the incoming serial bytes convert them to double data type and update the Waveform Chart If the Pause button is depressed send a byte in the serial port which will cause the Arduino target VI to pause sending data points via serial communication If the Pause button is not depressed it won t send the pause byte Transmit the pause byte via serial communication 0 Close the serial communication 1 Display any errors NOTE Error wire is used for flow control only and data on clusters cannot 7 SEE 10 fi COM Port Labch4 nce ED Sse er 3 a Amt Instr 8 Arduino Data 2 B 5 Board abc CPU bct E Arduino Compatible Target VI 8 Bits No Parity 1 Stop Bit 2 Call Serial Flush vi to make sure the serial drive functions wautforthe freee transmission of outgoing serial data to complete 3 Call Serial Set Timeout vi to set th
110. Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints RGB LED Write VI Installed With Arduino Compatible Compiler for LabVIEW Writes all outstanding pixel color and brightness setting changes to the LEDs since last written Instance 1 error in no error 11 15 error out Lvs Instance is a reference to the instance of the RGB LED class Sesh error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the dat
111. Arduino target for more information on its EEPROM This example retrieves the size of your Arduino EEPROM writes values to two independent EEPROM addresses and read those two values back The three data points are displayed on an I2C based LCD screen Note the Arduino Due does not have an EEPROM so this example will no work on that target 12 Memory Optimization a Memory Optimization SubVI Example This example demonstrates how to pass large data sets to subVIs using Global Variables This is the preferred method for passing large data sets to subVIs as it avoids the creation of extra memory copies of those data sets inside the subVIs Refer to the Important Considerations Before Start Creating Arduino VIs section of the Quick Start Guide for more information on Memory Optimization techniques b Saving Read Only Data to Program Memory Example This example demonstrates how to store data in flash program memory instead of SRAM and read it back within a running program This provides a way to tell the compiler to put a large array into flash memory instead of into SRAM where it would normally go The data stored in program memory is only available as read only to your program This is a good way to get use of more memory for things like lookup tables You must use the Read Program Memory functions to retrieve the data from your program at run time 13 Debugging a Memory Crash Example This example demonstrates how to use the Debug Tool API VI
112. Call Pin Mode vi to set the output digital pin to an output 2 Call Analog Read vi to read the voltage on the analog pin specified 3 Convert the analog voltage from a 10 bit value to Celsius based on the specification of the LM 35 or TMP35 temperature sensor 4 If the converted temperature is larger than the threshold turn on the digital output otherwise turn it off 5 Loop indefinitely NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino tare 2015 TSXperts Aledyne All rights reserved Analog Input 3 Axis Accelerometer Example Installed With Arduino Compatible Compiler for LabVIEW This example shows how to acquire analog data from a 3 axis accelerometer that is powered from 3 3V such as an ADXL335 and convert to roll and pitch to determine when the orientation is within a given range This is similar as to how mobile devices detect screen orientation for portrait and landscape modes lower limit deg r y 20 upper limit deg m20 y Digital Output Pin r Debug Z Axis Pin A 4 2 Page 87 of 110 upper limit deg T514 lower limit deg TELH Z Axis Pin UEH Y Axis Pin as aaa gt a Tt Sima A IF enabled during compile raw x y z accelerometer X A Pin f UE toll and pitch will be output to the sei T E Digital Output Pin UEH fiz OUTPUT is Pin Modevi Serial BD vi a A wi eal A wi B Read vi if Ed
113. Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Write the input Data to the LCD The supported datatypes include string boolean integer and floating point data types Instance 1 Data 0 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class Ez Data to write to the LCD EH error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or r
114. E Non English versions LabVIEW will however translate to the corresponding localized language the True False words that define the frame names for a boolean case statement This causes the LabVIEW Compatible Compiler for LabVIEW to throw a compilation error There is however a workaround for this issue the implementation above would need to be changed to the following in order for it to compile without errors pinNumber Boolean To 0 1 Boolean EE si Saat alot ed pada and a on 21 0 Note how a Boolean To 0 1 function from the Boolean palette is being used to convert the boolean value that would be wired to the case statement into an integer value For this situation the 1 frame will implement the code that was originally inside the True frame and the 0 frame will implement the code that was inside the False frame in the boolean case stetement scenario The overall functionality is identical however an extra step is required in the case of the Arduino Compatible Compiler for LabVIEW Enum Case Statement Wired from SubVI Due to the way the compiler was designed case statements only support Enum types wired to their case selectors if the Enum is part of the same diagram i e doesn t come from a subVI The following code snippet showing an Enum type coming from a SubVI would generate a compilation error Page 15 of 110 The workaround for this is to perform a comparison external to the subVI that would turn the Case Sta
115. E error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Analog Write VI Installed With Arduino Compatible Compiler for LabVIEW Writes an analog value PWM wave set by PWM Value to a pin specified by pin Can be used to light a LED at varying brightnesses or drive a motor at various speeds After a call to Analog Write vi the pin will generate a steady square wave of the specified duty cycle until the next call to Analog Write vi or a call to Digital Read vi or Digital Write vi on the same pin The frequency of the PWM signal on most pins is approximately 490 Hz On the Arduino Uno and similar boards pins 5 and 6 have a frequency of approximately 980 Hz Pins 3 and 11 on the Arduino Leonardo also run at 980 Hz On most Ard
116. E error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Exp
117. Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sac error out passes error or warning information out of a VI to be used by other VIs Right click the error
118. Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Delay Micros VI Installed With Arduino Compatible Compiler for LabVIEW Pauses the program
119. Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Serial Write String VI Installed With Arduino Compatible Compiler for LabVIEW Writes a string to the serial port Instance 1 String 0 error in no error 11 15 error out Lvs Instance is the reference to the serial port E String is the string to write to the serial port Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front p
120. Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE
121. Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Analog Reference VI Installed With Arduino Compatible Compiler for LabVIEW Configures the reference voltage used for analog input i e the value used as the top of the input range The options for Type are listed below Type 0 error in no error 11 15 error out Lvs Type of reference voltage as follows Non Mega Boards 0 EXTERNAL the voltage applied to the AREF pin 0 to 5V only is used as the reference 1 DEFAULT the default analog reference of 5 volts on 5V Arduino boards or 3 3 volts on 3 3V Arduino boards 3 INTERNAL a built in reference equal to 1
122. I to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are no
123. Is Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to l
124. Most of the examples presented in this section illustrate the use of arrays however note that the same optimization algorithms that are applied to arrays are also applied to string data types by the compiler It is extremely important to note that although the compiler includes a level of optimization algorithms the use of arrays and strings are highly discouraged when targeting the Arduino Uno and similar targets due to their very limited available RAM One of the biggest differences between LabVIEW and an embedded programming language like ANSI C is that LabVIEW abstracts memory allocations from the programmer whereas its text based counterparts leave that responsibility to the programmer This certainly makes life much simpler for a LabVIEW programmer who can freely create variables and the LabVIEW compiler takes care of their corresponding memory allocations in the background That however can cause issues if the programmer is creating a VI to be executed on an embedded target and doesn t pay attention to how memory is being allocated in the background It is certainly useful that the programmer understands how LabVIEW handles memory allocations This document will present a very brief overview of some basic concepts For a more complete account of how LabVIEW handles memory allocation refer to this presentation It will use array type variables in the explanation as it is the one with the most significance for our specific case and the easiest
125. Number NOTE offset past number output always returns 0 The default input can only be used to assign the output datatype The default value will not be used in the event a conversion cannot take place Also if the converted value exceeds the size of the output datatype the value will not be clamped like in LabVIEW desktop it will rollover e g if the input String is 256 and the default type is set to U8 the output will be 0 not 255 Fract Exp String to Number NOTE System decimal point inputs are ignored Offset past number output always returns 0 The default input can only be used to assign the output datatype The default value will not be used in the event a conversion cannot take place Also if the converted value exceeds the size of the output datatype the value will not be clamped like in LabVIEW desktop it will rollover e g if the input String is 256 0 and the default type is set to U8 the output will be 0 not 255 Rotate String Reverse String 2015 TSXperts Aledyne All rights reserved Boolean to String VI Installed With Arduino Compatible Compiler for LabVIEW This VI converts a boolean input to a String representing the boolean value as either a 0 or 1 Boolean Input 5 2 Boolean 0 1 Boolean Input is a boolean to convert to String Boolean 0 1 is a the converted String representation of the boolean input and is either 0 or 1 String Replace VI Installed With Arduino Compatible Compiler for L
126. O pin as an output for SPI transactions For the Arduino Due the CS Pin is configured to be directly managed by the SPI interface and must be one of the allowable CS Pins Note that once the pin is configured you can t use it anymore as a general I O unless you call SPI Close vi on the same pin The only pins that can be configured to be managed by SPI interface are the Arduino Due s Slave Select pins 4 10 52 and 54 correspond to AO CS Pin 0 He error in no error 11 B 15 error out Lvs CS Pin specifies the slave select or chip select pin of the Arduino This is only relevant for the Arduino Due which supports multiple CS pins Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints _TF status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain
127. ODE_PWR_DOWN option for avr This uses the least power but turns almost everything off so your options for wake interrupts and the like are limited Waking up the microcontroller can be done via external interrupt change in pin state however only a LOW state can take it out of sleep The currently executing code will stop at this VI until it wakes from sleep at which point execution will resume after this VI error in no error 11 15 error out Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster can
128. Page of 110 Arduino Compatible Compiler for LabVIEW Version 1 0 0 19 The Arduino Compatible Compiler for LabVIEW is a compiler that will take a LabVIEW Virtual Instrument VI and compile it for the Arduino programming language and will download the code to an Arduino board The downloaded code will execute embedded and standalone on the Arduino target The compiler allows a subset of VI features to be used Please refer to the installed palette and help manual to see a list of Supported features and APIs Please be aware of memory constraints The Arduino targets have very limited memory so care should be taken to limit or restrict usage of large and dynamic datatypes like strings and arrays especially on smaller targets like the Uno You must first download and install the Arduino IDE version 1 5 7 or higher from http arduino cc en main software to use this product I Arduino Compatible Compiler for LabVIEW Analog Input Temperature vi File Compiler Tools Help ar eo OO Status Compiling C Program Files x86 National Instruments LabVIEW 2014 examples Aledyne a TSXperts Arduino Compatible Compiler for LabVIEW Analog Analog Input Temperature vi Running interpreter Finished Generating downloadable program Finished Compiling Finished Loading configuration Initializing packages Preparing boards Build options changed rebuilding all Sketch uses 1 724 bytes 5 of program storage space M
129. Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Data is a byte array of data read from
130. Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low me
131. Target Once you have completed development of a LabVIEW VI that will be downloaded to the Arduino compatible target for more information on how to successfully create LabVIEW VIs to be compiled to an Arduino compatible target refer to section named Important Considerations Before Start Creating Arduino VIs navigate to the File menu of the compiler and you will have the options illustrated by the following figure I Arduino Compatible Compiler for La Compiler Tools Help Load VI Ctrl O Open Front Panel Ctri E Recent VIs gt Examples b Exit Ctrl Q B6 TSXperts Arduinoe Compatible Corr The Load VI option will point the compiler to the LabVIEW VI you wish to run embedded in the Arduino compatible target You also have the convenience of opening the loaded VI for inspection if desired For that option select Open Front Panel under the File menu You can also review a list of the recently loaded VIs for compilation under Recent VIs as illustrated below Arduino Compatible Compiler for LabVIEW Analog Input Temperature vi Compiler Tools Help Load VI Ctrl O Open Front Panel Ctri E D i fe pi SS ba n p Analog Input Temperature vi Examples b Test Round Nearest wi T Right vi Fut Ctrl Q est Rotate Right M T5Xperts Arduino Compatible Boolean Array Test vi nput Temperature vi PC LCD 2 Line LCD wi Running interpreter Finished I2C LCD 2 LCDs Copy vi Generating downloadable pro 12C LCD
132. W Transfers one byte over the SPI bus both sending and receiving For all targets the specified CS Pin is activated pulled low before the transfer occurs and deactivated pulled high when the transfer is finished There is an automatic 5ms delay after the slave select line is lowered before issuing the SPI transfer You can use the Transfer Mode parameter to manage the Slave Select line after the transfer Continue keeps the specified CS pin active low after the transfer to allow the send of additional bytes via the SPI Transfer vi in the same SPI transaction The last byte to be transferred should be accompanied by the Last transfer mode When a transfer is complete with Last the slave select pin returns inactive high CS Pin 0 Data 5 Transfer Mode 7 error in no error 11 4 Data Read 15 error out Lvs CS Pin specifies the slave select or chip select pin of the Arduino This is used on all Arduino boards to specify which CS Pin to enable lower during the transfer Page 73 of 110 Lvs Data is a single byte of data to transmit over the SPI bus oq Transfer Mode specifies whether to leave the CS Pin low after the transfer Continue or to raise the CS Pin Last Se error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and s
133. X The Arduino Due has three additional 3 3V TTL serial ports Serial 1 on pins 19 RX and 18 TX Serial 2 on pins 17 RX and 16 TX Serial 3 on pins 15 RX and 14 TX Pins O and 1 are also connected to the corresponding pins of the ATmega16U2 USB to TTL Serial chip which is connected to the USB debug port Additionally there is a native USB serial port on the SAM3X chip SerialUSB This VI also sets the data rate in bits per second baud for serial data transmission For communicating with the computer use one of these rates 300 600 1200 2400 4800 9600 14400 19200 28800 38400 57600 or 115200 You can however specify other rates An optional second argument configures the data parity and stop bits The default is 8 data bits no parity one stop bit Speed 0 i 4 Instance Serial Settings 5 error in no error 11 15 error out EA Speed is the baud rate of the serial port T Serial Settings defines the data width parity and stop bits of the serial port Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster
134. X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatype
135. a a o 8 Bits No Parity 1 Stop Bit 2 Call 2C Open vi in Master mode to initiate communication to the DS1307 3 If Set Time is enabled first convert all date time inputs to binary coded decimal BCD as this is required by the DS1307 Then start the transmission of date time data by setting the begin register address to write to The starting address must first be written before sending the date time data Start at address 0 which is the seconds register 5 Then write each date time register in order Leave the Day register as 0 since this will automatically be computed by the DS1307 when the date is written 6 In a loop query the current date time and format into a string as follows MM DD YYYY HH MM SS This is handled in a subvi here write the formatted date time string to the serial port 8 Continue writing RTC time to the serial port every second NOTE Error wire is used for flow control only and data on clusters cannot Date_Time Interface f 2 B Lust Slave Address Lust in no error ra Om a BC Write Byte vi IC Request From vi I2C Read All Bytes vi error out 1 Call 2C Write Byte vi to write the register that we would like to read from on the DS1307 2 Call 2C Request From vi with an input of 7 bytes to request reading of 7 bytes of data from the date time registers 3 Call 2C Read All Bytes to read all the register s data 4 Convert all read data from BCD to decimal since al
136. a new line or OxO0A byte to the end of string sent to the Arduino target The second option will add a carriage return or OxOD and the third option will add the two bytes 0x0A OxOD to the end of the string The user has also the option to change the baud rate for serial communication This setting should match the serial communication baud rate programmed in the running Arduino embedded VI A 10 second timeout is configured for the serial connection to be established If an error is generated it means the PC could not establish the serial connection with the Arduino target with the configured parameters The Serial Monitor screen will display all incoming bytes that are read from the serial port and also allow the user to simultaneously send strings via serial communication To send strings down from the PC to the Arduino target type in the string in the control located to the left hand side of the Send button then press the Send button E COM7 Arduino Uno v Autoscroll No line ending 7 9600 baud Finding Shipping Examples Arduino Compatible Compiler for LabVIEW ships with example VIs you can use and incorporate into VIs that you create You can modify an example VI to fit an application or you can copy and paste from one or more example VIs into a VI that you create Complete the following steps to browse all shipping Arduino Compatible Compiler for LabVIEW example VIs 1 Launch National Instruments LabVIEW 2 Sel
137. a within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints _TF 4 status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires
138. abVIEW This VI allows you to replace all instances of a given character with another character You can also use replace to replace substrings of a string with a different substring The implementation is similar to the native LabVIEW search and replace string but with limited capabilities on the Arduino target A single search string can be entered in search string and all occurances of it in input string will be replaced by replace string input string 0 4 result string search string 5 replace string 7 15 error out error in no error 11 input string specifies the input string you want the function to search search string specifies the string you want to search for and replace replace string specifies the string you want to insert in place of search string error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Page 29 of 110 status is TRUE X if an error
139. al pin to an output 3 Call Digital Write VI to initialize the output pin to OV LED off 4 Call Attach Interrupt vi to attached the callback VI to a falling edge interrupt on digital pin 2 interrupt 0 of an Uno Change this to 2 for the Due since an interrupt can be enabled on every pin When a falling edge interrupt occurs the callback VI will be executed which increments a counter on the global variable count and turns on the LED every 5 edges 5 Call Enable Interrupts vi not necessary as they are enabled by default 6 If the number of edges on Count is in between an increment of 5 then turn off the LED It will be turned on again after 5 more edges in the Callback NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target Callback VI 1 Increment the count on the global variable 2 If the count is an increment of 5 every 5 edges then turn on the digital output 2015 TSXperts Aledyne All rights reserved Interrupt Timer Example Installed With Arduino Compatible Compiler for LabVIEW This example shows how to setup a microsecond based timer to trigger an interrupt to call into a callback VI In the callback VI outputs I O can be modified directly or global variables can be used to update variables shared with the main VI This example uses the onboard LED on pin 13 LED Pin 13 period us A y 500000 Main VI
140. al port to write acquired data to Call SPI Open Express vi to initialize the SPI peripheral on the selected CS pin Also sets the CS pin as an output and raises it to initialize it sets the Bit order of the SPI byte transactions sets the Data Mode and sets the Clock Divider For AVR targets 0 sets divide by 8 or 2MHz for L6MHz boards For Due targets set this to 42 to achieve the same frequency 84MHz 42 2MHz Read one byte from the SPI bus For the MAX6675 this is the high byte Make sure to keep CS low for the 2 byte transaction so we set transfer mode to Continue Now read the low byte and set transfer mode to Last so CS is raised after the transaction Convert the 2 bytes to a single uint Node that to convert the high byte to a uint first an add primitive is used with a unit constant of 0 as input to the other terminal to force a cast from the read high byte to a unit Then the high byte is shifted left by 8 bits and Or ed with the low byte Then the result is shifted right by 3 bits and multiplied by 0 25 per the MAX6675 datasheet Bits D14 D3 contain the converted temperature in the order of MSB to LSB 1 bit is 0 25 degree so we must also divide by 4 Convert Celsius to Fahrenheit and convert both to String datatypes Format a message containing both Celsius and Fahrenheit temperatures and send over the serial interface 8 Loop indefinitely Wait 250ms between reads as the MAX6675 maximum conversion time is 0 22s 9600
141. alette 2015 TSXperts Aledyne All rights reserved LiquidCrystal_I2C VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Creates an instance of the LiquidCrystalI2C Class This class is specific to the sainsmart LCD2004 controller Addr The I2C Address to be used usually 0x3F or decimal 63 for the Sainsmart controller ENPin The number of the sainsmart controller pin that is connected to the enable pin on the LCD RWPin The number of the sainsmart controller pin that is connected to the RW pin on the LCD RSPin The number of the sainsmart controller pin that is connected to the RS pin on the LCD D4Pin D5Pin D6Pin D7Pin The numbers of the sainsmart controller pins that are connected to the corresponding data pins on the LCD The LCD can only be controlled using 4 bit mode through the four data lines d4 d5 d6 d7 Chars specifies the number of characters in a line of the LCD Lines specifies how many lines are int he LCD Instance 1 Configuration 0 Chars 5 Lines 7 15 error out error in no error 11 EET Instance is a reference to the instance of the LCD class EA Configuration is the configuration of the I2C LCD controller Addr is the I2C Address to be used usually 0x3F or decimal 63 for the Sainsmart controller ENPin is the number of the controller pin that is connected to the enab
142. alled Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires s
143. alue of N which will be passed to the input of the Digital API VI declaration The above code can be replaced with the following code and the functionality is maintained On the later case the variable that stores the constant 10 is reused inside the For loop and passed in as an input to the Digital API VI declaration This implementation avoids the creation of the extra variable to store the N value optimizing memory utilization Parallel Loops and Multi Threading LabVIEW and its graphical programming paradigm are very conducive to parallel processing In fact parallel programming is one of LabVIEW s strengths The LabVIEW compiler even goes as far as splitting thread allocation amongst the multiple cores of a multi core CPU However Arduino as mentioned previously is a non Operating System microcontroller target Parallel computing and multi threading are best handled by CPUs running an operating system with a scheduler coordinating multiple threads Microcontrollers are not the best targets for the execution of such architectures Moreover the Arduino Uno is a very small microcontroller based target Since the Arduino Compatible Compiler for LabVIEW was created to support all Arduino targets released by the Arduino organization including the Arduino Uno the compiler does not support parallelism of loops Let s illustrate the concept through an example Page 13 of 110 The example above shows two independent parallel loops free r
144. alue to the digital pin 4 Loop indefinitely with a 100ms delay between counts making one complete pass from minimum brightness to maximum brightness in 2 55 seconds 2015 TSXperts Aledyne All rights reserved Interrupt On Digital Input Edge Example Installed With Arduino Compatible Compiler for LabVIEW This example shows how to setup a change on a digital input to trigger an interrupt to call into a callback VI In the callback VI outputs I O can be modified directly or global variables can be used to update variables shared with the main VI This example demonstrates sharing data between the interrupt callback VI and the main VI using global variables A counter is updated in the interrupt and every 5 edges the output state of a digital output pin is changed In the main VI the same output pin is reset between edge transitions Output Digital Pin LED Pin 13 13 Main VI Page 89 of 110 NOTE Change this to 2 for the Arduino Due to match the pin number 00 H Remainder is not 0 count in el between 5 presses so turn LED o Output Digital Pin E ET x a B Bj b OUTPUT Digital Input 2 Int 0 Interrupt Callback vi _ Digital Input 4 INPUT_PULLUP aa lo ie aat Ea Pin Modewi Pin Mode vi Digital Write vi Attach Interrupt vi Digital Write vi FALLING F 1 Call Pin Mode vi to enable the pullup on digital pin 2 which will be used for an interrupt 2 Call Pin Mode vi to set the output digit
145. amic memory is stored on the heap In the case of arrays for example if new array elements are added to an array variable or node the memory allocated to that array variable needs to grow in size The downside to using dynamic memory allocation is that it cannot be known at compile time if there is enough RAM to support the required data and variable usage If there is not enough RAM to allocate or resize a variable at run time it can cause the program to behave unexpectedly or even stop working completely However the advantage to dynamic memory allocation is that nice features and functions like concatenate strings build array and auto indexing of LabVIEW structures can be supported Dynamic memory allocation also tends to be non deterministic the time taken to allocate memory may not be predictable and the memory pool may become fragmented resulting in unexpected allocation failures Memory fragmentation occurs when most of the memory is allocated in a large number of non contiguous blocks or chunks leaving a good percentage of the total memory unallocated but unusable for most typical scenarios This results in out of memory exceptions or allocation errors in which the Arduino Compatible Compiler for LabVIEW tries to detect in order to prevent a complete crash of the program However the result is unexpected data behavior Page 11 of 110 In summary if the target does not have enough memory to allow all allocations the program can produc
146. ample 1 5 wired to the n input should be rounded up to 2 and the result should be 1 5 2 2 or 6 But LabVIEW will round both inputs giving 2 2 2 or 8 This function has been implemented in the correct way on the Arduino Compatible Compiler for LabVIEW so this example would produce a value of 6 on an Arduino target Wiring an integer to the n input is more of a common application though x 24n gt PAn Square Root Square Negate Reciprocal Random Number 0 1 Numeric Enum Constant Rotate Left Right Rotate Logical Shift Split Numbers Join Numbers Swap Bytes Words String to Byte Array Byte Array to String NOTE Any NULL 0x00 bytes in an array cannot be represented in Arduino language and will cause the string to be prematurely terminated during conversion Do not use this function to convert NULL characters Math Constants 2015 TSXperts Aledyne All rights reserved Random Number In Range VI Installed With Arduino Compatible Compiler for LabVIEW Generates pseudo random numbers in the specified range between min and max min 5 pem 1 Random Number max 4 min is the lower bound of the random value inclusive EA max is the upper bound of the random value exclusive Random Number is a random number between min and max 1 Random Seed VI Installed With Arduino Compatible Compiler for LabVIEW Page 27 of 110 Initializes the Arduino pseudo random number generator caus
147. an have each of its multiple constructs made into a separate LabVIEW API VI as we will see a little later on this Guide Now that we have evaluated two examples it is probably a good time to take a look at the library source code itself There are usually two files of interest in a library a h and a c or cpp files Explanation of what these files are is beyond the scope of this guide as it is related to the C language Open the c file In our case it is file named analogShield cpp The c file will have the implementation of the API functions that we will be porting to LabVIEW The implementation is important as we will need to extract the list of parameters and their corresponding data types so we can map our API VIs connector pane to match the same parameters list In looking at the analogShield cpp file it is clear that the following functions are API functions and will be ported to LabVIEW Read Signed Read and Write Now there is a caveat with the Write function Remember that we saw two different constructs for the Write function on the two examples we have analyzed In fact in looking through the library source code the Write function has four different constructs A single channel write two channel write three channel write and four channel write As it was mentioned above each one of these constructs will be made into a separate API VI Therefore each construct s parameter list will need to b
148. and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occur
149. and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints File Reference holds the reference to the open file opened indicates whether or not the operation was successful Bac error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error
150. anel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other V
151. ans 9 Convert radians te degrees 10 Check if roll and pitch are within specified lower and upper limits This determines if the accelerometer is relatively flat within a certain tolerance If the sensor ts oriented sideways in either x or y direction greater than the specified limits the output LED will tum off Turn on the LED if roll and pitch are within the given limits Otherwise turn off the LED F enabled send out raw x y z accelerometer voltages and calculated roll and pitch to serial port for debugging Loop indefinitely JOTE ee ee ee be written nor accessed while deploye 2015 TSXperts Aledyne All rights reserved Analog Output PWM Example Installed With Arduino Compatible Compiler for LabVIEW Demonstrates how to use a PWM output on a digital pin to vary the brightness of an LED This can also be used to vary the speed of a motor for example This can be run on any Arduino board that supports a PWM on a digital output pin The Due supports true DAC outputs on pins 66 and 67 and this same example can be used to control the analog outputs of those DACs a gt ts Digital Pin PWM y 5 ontnouy Page 88 of 110 L Digital Pin PWM 1 This is a digital output pin that supports pulse width modulation PWM 2 Use the loop counter for the PWM value making it wrap around every 255 counts since the maximum value of the PWM is 255 3 Call Analog Write VI to write the loop counter v
152. are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Expla
153. are sorry for the inconvenience Please tell us about the problem We have created and error report that you can send to us to help us improve the compiler We will treat the report as confidential and anonymous Show Details Send Error Report If the above exception occurs the Send Error Report button can be used to send a report of the error to the developers of the Arduino Compatible Compiler for LabVIEW This information will be very helpful in improving the product in future releases To access the Arduino Compatible Compiler for LabVIEW palette take the following steps 1 Open a new LabVIEW VI 2 Navigate to the VI block diagram Page 9 of 110 3 Right click at the block diagram and navigate to Addons 4 You will see the Arduino Compatible Compiler sub palette 5 Pin the Arduino Compatible Compiler sub palette down so it constantly shows while you create your VI code Arduino Compatible Compiler for LabVIEW a a Y EF feof im G H v sa o a m o 5 Numeric oO queen Timing niara TU el Digital gt SERIAL z Serial Compilation 2 a my This section will present some fundamental details that need to be fully understood by the developer prior to creating Arduino compatible VIs Make sure to read the entire document as it is an important preparation step to successfully create Arduino compatible LabVIEW VIs Clusters Though clusters are a great
154. arning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program sinc
155. ass EA Data to write to the LCD Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when d
156. ata within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SPI Set Bit Order VI Installed With Arduino Compatible Compiler for LabVIEW Sets the order of the bits shifted out of and into the SPI bus either LSB First least significant bit first or MSB First most significant bit first For the Arduino Due the bit order setting is applied only to the device connected to the specified CS Pin CS Pin 0 MSE ce order 5 error in no error 11 15 error out Lvs CS Pin specifies the slave select or chip select pin of the Arduino This is only relevant for the Arduino Due which supports multiple CS pins oq order specifies the order of the bits shifted out of and into the SPI bus either LSB First least significant bit first or MSB First most significant bit first Sec error in can accept error
157. ataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Serial Check for Bytes VI Installed With Arduino Compatible Compiler for LabVIEW Get the number of bytes characters available for reading from the serial port This is data that s already arrived and stored in the serial receive buffer which holds 64 bytes Page 58 of 110 Instance 1 4 Bytes error in no error 11 15 error out Lvs Instance is the refe
158. ataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be
159. ater light chaser on a 1 wire RGB LED strip using a WS2811 or WS2812 controller The color of all LEDs can be preset as well as the number of lights to cycle in the light chase The time delay can also be adjusted to change the dramatic effect b Rainbow Example This example demonstrates a rainbow effect on a 1 wire RGB LED strip using a WS2811 or WS2812 controller Each LED in the strip is gradually changed from red to green then to blue with a blend of colors in between The LED color changing effect is staggered down the strip so not all LEDs are changed at the same time The time delay can also be adjusted to change how fast the color is changed s SD Card a Read Data Example This example demonstrates how to read data previously written to an SD Card and to transfer this data via serial communication The project include two VIs one running on a host PC and the other running embedded in the Arduino compatible target b Log Data Example This example demonstrates how to initialize and write data to an SD Card Shield Once this example is executed successfully you can run the SD Card Read Data vi shipping example to retrieve the data saved in the SD Card by this Page 83 of 110 example and plot it on the screen of a host VI 9 SPI a MAX6675 Thermocouple to Digital Converter Example This example demonstrates how to read the temperature from a MAX6675 SPI K Type Thermocouple to Digital converter The temperature is read in Celsius
160. ator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C write String VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Write the input Data to the LCD The supported datatypes include string boolean integer and floating point data types Page 53 of 110 Instance 1 Data 0 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class abe Data to write to the LCD Sec error in can accept e
161. aximum is 32 256 bytes Global variables use 17 bytes 0 of dynamic memory leaving 2 031 bytes for local variables Maximum is 2 048 bytes Arduino Uno on COM13 Technical support requests to support tsxperts com Arduino is a trademark of the Arduino Organization LabVIEW is a trademark of National Instruments Corporation 2015 TSXperts Aledyne All rights reserved Quick Start Guide This guide is intended to provide detailed information that describes how the Arduino Compatible Compiler for LabVIEW works Understanding these details is fundamental to successfully create LabVIEW VIs which can be compiled and downloaded to an Arduino compatible target It includes information about Arduino Compatible Compiler for LabVIEW programming concepts step by step instructions for using the Arduino Compatible Compiler for LabVIEW reference information about the Arduino Compatible Compiler for LabVIEW available APIs and references to the shipping examples This guide is organized in three main sections Licensing Getting Started and Important Considerations Before Start Creating Arduino VIs It is strongly recommended the complete understanding of the contents of this guide prior to the utilization of the compiler by a developer 2015 TSXperts Aledyne All rights reserved Getting Started with the Arduino Compatible Compiler for LabVIEW Arduino Compatible Compiler for LabVIEW is a product based on LabVIEW Laboratory Virtual Instr
162. ay of data read from the serial port This can be converted to a string if the data being received is ASCII by using the Byte Array to String LabVIEW primitive 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are onl
163. bout the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select
164. btract API VIs e libraries This is where the Arduino library can be copied or any custom c and h files with the specific C implementation The Arduino Compatible Compiler for LabVIEW will automatically install any libraries stored here such that Step 1 of this guide is not necessarily required Although it is still good practice to execute Step 1 so that you can ensure the library is working with hardware within the Arduino IDE first For the case of the template there is one h file with the implementation of the functions to be ported by the Add and Subtract API VIs As it was mentioned above the Translator vi is where the mapping actually happens Let s take an example to illustrate how the mapping is actually done We have created in the previous step the LabVIEW API VI Write Four Channels vi which maps the original C function construct that takes five input parameters One can start with the Translator vi from the Template provided Then on the central case statement one would need to create a separate case for each LabVIEW API VI from your library In this example the Template has been saved as a separate Ivlib named Digilent Analog Shield and inside its Translator vi a case for each of the LabVIEW API VIs defined in the list has been created as illustrated below Page 22 of 110 EE o AEA smesna TH Digilent Analog Shield lvlib Write Four Channels 4 a cluster probe the inputs outputs wires False Default D
165. cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to Page 79 of 110 help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only u
166. cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow contro
167. cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Page 38 of 110 code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires
168. cate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory const
169. ce cluster datatypes are not supported due to low memory constraints Sac error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cl
170. ce string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD Format CSV Data VI Installed With Arduino Compatible Compiler for LabVIEW This VI will convert the incoming Data double array input into a CSV line ready to be saved to a SD Card CSV file It will also append the Timestamp string to the end of the line if the Append Timestamp control is set to true precision 6 5 Append Timestamp 7 Raw Data 11 Timestamp 10 error in no error 8 2 CSV Data 0 error out ET precision sets the number of digits of precision the conversion from double to string will perform T Append Timestamp if set to True the VI will append the Timestamp control data to the end of the CSV line Raw Data is athe array of data that will be converted to the CSV line abe Timestamp is the timestamp string or any other tag to be appended to the end of the CSV line Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypa
171. ck the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sea error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster
172. cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD Remove Directory VI Installed With Arduino Compatible Compiler for LabVIEW Removes the input Directory from the SD Card Directory 0 4 success error in no error 11 15 error out abe Directory holds the directory that will be removed from the SD Card Page 63 of 110 S
173. croseconds This interrupt will only compile on AVR platforms and will not work on the Arduino Due Note Inside the attached VI any Delay calls won t work and the value returned by Tick Count vis will not increment Serial data received while in the function may be lost To transfer data in and out of the callback VI global variables must be used Also the referenced callback VI cannot have any input or outputs wired to the terminals VI Reference 0 period 5 J Q error in no error 11 15 error out E VI Reference is the reference to the callback VI that will run when the interrupt occurs EA period in microseconds to trigger the callback VI Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and sel
174. ct Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Write String VI Installed With Arduino Compatible Compiler for LabVIEW Write to
175. ct Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or
176. d The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Write Program Memory VI Installed With Arduino Compatible Compiler for LabVIEW Store data in flash program memory instead of SRAM This function tells the compiler to put the input array into flash memory instead of into SRAM where it would normally go Therefore the data stored in program memory is only available as read only to your program This is a good way to get use of more memory for read only data that is known at compile time like lookup tables You must use the Read Program Memory functions to retrieve the data from your program at run time NOTE The input array must be a control or constant and must be directly wired to this function as well as the Name to assign to the array Name 0 r 4 Number of Elements Data 5 Aie Ep T Pel s error out error in no error 11 abe Name d
177. d for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Bac error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or
178. d only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more Page 61 of 110 abe information about the error NOTE error wires are only used for flow control when deployed onto an Ard
179. d select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Data returns the data read from the specified index Idx of the data array previously stored
180. dataflow in a program since cluster datatypes are not supported due to low memory constraints Sac error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Page 55 of 110 status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an
181. de Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more Page 75 of 110 abe information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Interface is the reference to the I2C port This should be passed into subsequent I2C port VIs error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires sho
182. does NOT support commas as part of string array elements If your VI includes either a string array constant or a string array control with default values you need to make sure the string array elements do not include a comma as part of their values If a comma is used on these scenarios the Arduino Compatible Compiler for LabVIEW will not generate a compilation error however the compiled output code will be erroneous and the code functionality will be at risk Concatenate Output Tunnel LabVIEW offers an option for the user to set an output tunnel of a loop to concatenate its elements as illustrated in the figure below The Arduino Compatible Compiler for LabVIEW currently does NOT support this feature Page 16 of 110 Global Variable Utilization As mentioned previously the use of global variables is a great way to work around the limitations of the small hardware footprint of the Arduino targets However since global variables break the concept of data flow there are a couple of exceptions on its utilization that the user needs to pay attention to These exceptions are documented below The first exception to be highlighted is displayed in the following code snippet StringGlob gt StringGlob 0 As one can see in the code segment above the global variable is being used in the input and output of a node and is also being wired in parallel as the input of a subVI The way LabVIEW handles this is such that the global variable
183. dress on the Arduino to write data to Lvs Data specifies the byte of data to write to the specified EEPROM Address Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Czy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more in
184. due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help c
185. duino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about Page 33 of 110 the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more info
186. e PCMCIA adapters Ports COM amp LPT 1 Arduino Due Programming Port COM6 J Arduino Uno COM3 Communications Port COM1 ECP Printer Port LPT1 QD Processors 3 Smart card readers Sound video and game controllers W amp lt Storane controllers _ Now that you made sure your Arduino target is properly installed in your PC launch the main compiler screen To do that open LabVIEW and under its Tools menu select Arduino Compatible Compiler for LabVIEW The following screen will be launched Page 3 of 110 ES Arduino Compatible Compiler for LabVIEW File Compiler Tools Help a gt x Status gt Arduino Uno on COMI13 To configure a target for your VIs to be downloaded to follow the steps below 1 In the main compiler screen select Tools from the main menu 2 If a new Arduino target is connected to the computer while the compiler screen is open you will need to refresh the connected ports To execute this operation select Detect Ports under the Tools menu This option will refresh the list of serial ports available in your PC s operating system and make them available for selection from within the compiler screen If all boards were connected to the computer prior to opening the compiler screen you can skip this step 3 The last step to finish configuring your compiler is to select the COM port your target is connected to To do that select Port option unde
187. e 2 4 8 16 32 64 or 128 The default setting is Divide by 4 which sets the SPI clock to one quarter the frequency of the system clock 4 Mhz for the boards at 16 MHz On the Arduino Due the system clock can be divided by values from 1 to 255 The default value is 21 which sets the clock to 4 MHz like other Arduino boards For the Arduino Due the clock divider setting is applied only to the device connected to the specified CS Pin Page 72 of 110 CS Pin 0 Clock Divider 5 error in no error 11 15 error out Lvs CS Pin specifies the slave select or chip select pin of the Arduino This is only relevant for the Arduino Due which supports multiple CS pins Lvs On AVR based boards Clock Divider settings are as follows 0 Divide By 4 1 Divide by 16 2 Divide by 64 3 Divide by 128 4 Divide by 2 5 Divide by 8 6 Divide by 32 The default setting is Divide by 4 which sets the SPI clock to one quarter the frequency of the system clock 4 Mhz for the boards at 16 MHz On the Arduino Due The system clock can be divided by values from 1 to 255 The default value is 21 which sets the clock to 4 MHz like other Arduino boards Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for mor
188. e Compiler for LabVIEW main screen includes a Serial Monitor application The Serial Monitor application is launched by pressing the Serial Monitor button as displayed below Page 5 of 110 IE Arduino Compatible Compiler for LabVIEW Analog Input Temperature vi File Compiler Tools Help Compiling C Program Files x86 National Instruments LabVIEW 2014 examples Aledyne TSXperts Arduino Compatible Compiler for LabVIEW Analog Analog Input Temperature vi Running interpreter Finished Generating downloadable program Finished Compiling Finished Loading configuration Initializing packages Preparing boards Build options changed rebuilding all Sketch uses 1 724 bytes 5 of program storage space Maximum is 32 256 bytes Global variables use 17 bytes 0 of dynamic memory leaving 2 031 bytes for local variables Maximum ts 2 048 bytes Arduino Uno on COM13 When pressed the following screen is opened The Serial Monitor will be initialized with the same serial port as configured in the main screen in the case of the two figures shown COM7 The default parameters will be set to No line ending and 9600 baud rate If the No line ending parameter is selected no extra characters are added to the end of the bytes to be sent via serial communication from the host PC There are three other parameters the user can take advantage of New line Carriage return and Both LN and CR The first one will add
189. e cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints I2C LCD Palette Installed With Arduino Compatible Compiler for LabVIEW 12C_LCD z He LiquidCrystal LiquidCrystal LiquidCrystal LiquidCrystal Ca Pan LiquidCrystal LiquidCrystal The I2C LCD Palette includes APIs for writing data to a Sainsmart or equivalent LCD with an I2C LCD Controller An Arduino I2C port using 2 digital pins must be used to interface to this p
190. e cursor to the top left of the LCD 5 Call Get EEPROM size vi to retrieve the size of the Arduino target EEPROM 6 Call LiquidCrystal_2C write String vi two times to write a string and the EEPROM size value returned from the Get EEPROM size vi to the first line Call EEPROM Write vi to write the value 125 to EEPROM address 0 8 Call EEPROM Read vi to read the value stored at EEPROM address 0 9 Set the LCD cursor to the second line using LiquidCrystal_I2C set cursor vi write a string and the value stored at EEPROM address 0 10 Call EEPROM Write vi to write the value 165 to EEPROM address 10 11 Call EEPROM Read vi to read the value stored at EEPROM address 10 12 Set the cursor to the third line using LiquidCrystal_2C set cursor vi write a string and the value stored at EEPROM address 10 NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target 2015 TSXperts Aledyne All rights reserved RGB LED Chaser Example Installed With Arduino Compatible Compiler for LabVIEW This example demonstrates a theater light chaser on a 1 wire RGB LED strip using a WS2811 or WS2812 controller The color of all LEDs can be preset as well as the number of lights to cycle in the light chase The time delay can also be adjusted to change the dramatic effect Mode Chase Every N Pixel Red A 300kHz_GRB gt Number of LEDs delay ms Green zeo T 127 gt Digital Pin B
191. e error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Data Read is the single byte of data read over the SPI bus during the transfer z error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot
192. e information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and
193. e is playing on the same pin the call will set its frequency Use of the Tone Start vi function will interfere with PWM output on pins 3 and 11 on boards other than the Mega It is not possible to generate tones lower than 31Hz This functionality is currently not supported on the Arduino Due NOTE if you want to play different pitches on multiple pins you need to call Tone Stop vi on one pin before calling Tone Start vi on the next pin pin 0 Frequency Hz 5 Duration ms 7 15 error out error in no error 11 Lvs pin defines which digital pin to use for tone generation T Frequency Hz defines the frequency of the tone to emit on the digital pin A Duration ms defines the duration of the tone in milliseconds If set to 0 the tone runs indefinately or until Tone Stop vi is called Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE
194. e is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints bytes written is the total number of bytes written to the file Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used
195. e maximum time the Serial Read vi will wait for serial data 4 Execute the While loop once a second if it is transmitting data points or once every 250 miliseconds if it is paused Loop indefinitely 6 Call Serial Read Bytes vi to check if the host PC VI has sent a Pause Resume command If there is a byte received in the serial port it mean the host PC VI has paused the transmission If there is no byte at the serial port continue generating the sine wave and transmiting the data points to the host PC 8 Generate the sine wave data points with a line feed n as termination character Call Serial Write String vi to transmit the sine wave data points via serial communication 10 Call Serial Close vi to close the serial connection to the host PC NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while de 2015 TSXperts Aledyne All rights reserved Memory Optimization SubVIs Example Installed With Arduino Compatible Compiler for LabVIEW The Memory Optimization example demonstrates how to pass large data sets to subVIs using Global Variables This is the preferred method for passing large data sets to subVIs as it avoids the creation of extra memory copies of those data sets inside the subVIs Refer to the Important Considerations Before Start Creating Arduino VIs section of the Quick Start Guide for more information on Memory Optimization techniques Page 93 of 110 error in
196. e string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD Create Directory VI Installed With Arduino Compatible Compiler for LabVIEW Create a directory on the SD card This will also create any intermediate directories that don t already exists for example a b c in the Directory input will create a b and c Note The SD library uses 8 3 filenames which have at most 8 characters for files and directories optionally followed by a period and a filename extension of at most three characters File and directory names are uppercase although systems that use the 8 3 standard are usually case insensitive Directory 0 4 success error in no error 11 15 error out abe Directory holds the directory name for the directory that will be created in the SD Card Limited to 8 characters for each directory Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the e
197. e the case frame and each of the s instance will be replaced by the Format to String primitive LabVIEW VI with an element from the incoming Inputs array Since the analog write doesn t return an output and an output in the LabVIEW API VI connector pane is not mapped we don t need to worry about the incoming Outputs array A common question may be How can I know which array element will map to each parameter from my C function parameter list To answer that question we would like to introduce a new tool that was added to the Arduino Compatible Compiler for LabVIEW in version 1 0 0 17 the Arduino Code Display Tool which is a topic of the next step Step 5 The Arduino Code Display Tool In order to make your task of porting an Arduino library easier we have introduced the Arduino Code Display tool in the Arduino Compatible Compiler for LabVIEW version 1 0 0 17 and beyond You can access the tool from the Compiler menu as illustrated below E Arduino Compatible Compiler for LabVIEW Sisiam Tools Help Verify Ctri V i Compile and Download Ctrl D T Arduino Code Ctrl R Status Arduino Uno on COMI13 The process of viewing the Arduino Code that is generated by your library port is similar to the one of compiling an Page 23 of 110 Arduino VI You will need to first to create a test VI add the LabVIEW API VI you are interested in seeing the generated Arduino code for populate all the VI inputs and
198. e their own LabVIEW API VIs to bring a library s functionality into LabVIEW This allows the community to take advantage of the existing ecosystem of Arduino shields and to create even more complex applications in LabVIEW for the Arduino platform It is assumed at least a medium level of familiarity with the C language by the developer as example Arduino code that is part of the library will need to be read and understood as well as some lines of C code will have to be written by the developer as part of the process To view the converted Arduino Code for a user generated LabVIEW library use the Arduino Code menu item shown below after loading a test VI Refer to the Porting an Arduino Library to LabVIEW page for a complete guide to the process E Arduino Compatible Compiler for LabVIEW Siediam Tools Help Verify Ctrl V Compile and Download Ctrl D Arduino Code Ctrl R Status Arduino Uno on COMI13 Where to Go from Here It is strongly suggested that the developer gets familiar with special details on how to best use the Arduino Compatible Compiler for LabVIEW The section named Important Considerations Before Creating Arduino VIs contains information on what is supported what is not supported memory optimization techniques and other very important information for you to make the most out of your experience with the Arduino Compatible Compiler for LabVIEW 2015 TSXperts Aledyne All rights reserved Frequently Asked Questi
199. e transmission of outgoing serial data to complete Prior to Arduino 1 0 this instead removed any buffered incoming serial data Instance 1 error in no error 11 15 error out Lvs Instance is the reference to the serial port Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Rig
200. e understood Also since LabVIEW usually has an Open and Close VIs where initialization and clean up code usually reside respectively it is good practice to include an Open and Close API VIs for consistency It will become clear what code would be placed in Open and Close a little later in this guide once we turn our attention to the LabVIEW side of the port In summary the list of API VIs for the Digilent Analog Shield will be Open Read Signed Read Write Write Two Channels Write Three Channels Write Four Channels and Close One last task prior to calling this step complete is to determine the parameters list for each of the API functions as these parameters will need to be mapped by the LabVIEW API VIs themselves The list of parameters can be extracted from the c or h file depending on where the API function implementation is coded In the case of our example the functions implementations are in analogShield cpp The list below shows the functions prototypes extracted from the cpp file that contains the parameter list for each one of the functions that we elected to port to LabVIEW unsigned int analogShield read int channel bool mode int analogShield signedRead int channel bool mode void analogShield write int channel unsigned int value This is the construct used for Write API VI void analogShield write unsigned int valueO unsigned int value1 bool simul This is the construct used for Write T
201. e unexpected results or can even crash and stop working without further warning It is important to reduce usage of arrays and strings to avoid such problems Memory Optimization Another important concept is the idea of reusing declared variables as much as possible as opposed to creating a new variable copy for each input output variable of each called function This concept is called inplaceness optimization Inplaceness optimization happens when an algorithm or function reuses one or more of its input variables by overwriting the output data that is generated by said algorithm or function to the same input variable memory space as opposed to creating a separate variable to store the output data Intuitively one can see how this technique saves memory space in an executing program For small targets this becomes of special concern especially for long sized arrays A target can very quickly run out of memory resources in the event that no inplaceness optimization is applied especially if large arrays are part of the program The Arduino Compatible Compiler for LabVIEW does implement inplaceness following the same general rules that the LabVIEW compiler does for inplaceness optimization Let s take an initial simple example to illustrate the concept gt amp s2 Output Array In the example above the Initialize Function will create an array of 20 elements of type I32 The created array will serve as the input to the Add function
202. e written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error
203. ead The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the Page 50 of 110 shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an A
204. ead The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Detach Interrupt VI Installed With Arduino Compatible Compiler for LabVIEW Turns off the given interrupt Interrupt 0 Kl error in no error 11 15 error out Lvs Interrupt defines the interrupt number of the processor Sach error in can accept error information wired from VIs previously called Use this
205. ead those two values back The three data points are displayed on an I2C based LCD screen Refer to the LCD shipping examples and product documentation for more information on how to use the I2C LCD library This example assumes a Sainsmart I2C LCD or I2C Adapter is being used This example has been tested with the following LCDs SainSmart IIC I2C TWI Serial 2004 20x4 LCD Module Shield Page 100 of 110 Characters Lines 7 20 74 SainSmart I2C LCD Adapter can be used to convert the parallel interface of most LCD s to an I2C interface Some SainSmart LCD s already have this converter built into the backside of the LCD like the one pictured above which is a 20x4 LCD Module Shield These adapters are known to either use I2C Address 0x3F 63 or 0x27 39 Make sure to change the address on the block diagram accordingly dl bard De ne te me we Re Re 1982AY 200 23488H www Page 101 of 110 SEEE Call LiquidCrystal_2C vi to initialize the LCD for the correct number of characters and lines and to configure the I2C address and pins on the SainSmart 2C LCD Adapter board The pins configured here are used for configuration between the 2C Adapter board and the LCD NOT on the Arduino board 2 Call LiquidCrystal_I2C set backlight pin vi to set the appropriate backlight pin connected to the 2C LCD Adapter Board 3 Call LiquidCrystal_2C set backlight vi to turn on the backlight Call LiquidCrystal_2C home vi to set th
206. ec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints FY status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the
207. ect Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Exists VI Installed With Arduino Compatible Compiler for LabVIEW Returns exist
208. ect Explain Error or Explain Warning from the shortcut menu for more information about the error Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error Bac error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error Page 43 of 110 code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from t
209. ect Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error Page 40 of 110 NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by
210. ect Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints I2C Write Array VI Installed With Arduino Compatible Compiler for LabVIEW Writes data from a slave device in response to a request from a master or queues bytes for transmission from a master to slave device Interface 1 Slave Address 0 4 Error Data 5 Send Stop 7 15 error out Write Mode 9 error in no error 11 Slave Address is a the address of the slave device to send data to Interface is the reference to the I2C port Data to send to the slave device Send Stop set to true will send a stop message after the transfer releasing the I2C bus If false a restart message is sent after the transfer The bus will not be released which prevents another master device from sending between messages This allows one master device to send multiple transmissions while in control Write Mode defines how to handle the start and end transmission calls Begin and End Calls Begin Transmission before queuing the input data then calls End Transmission after queuing the data to force all data to be sent and forces a stop or restart Begin and
211. ect Help gt gt Find Examples to launch the NI Example Finder 3 Navigate to the folder named Arduino Compatible Compiler for LabVIEW or search for the Arduino keyword A comprehensive explanation of each example VI will be displayed in the right hand corner so you can select the one that best suit your immediate needs Another option to finding the shipping example VIs is via the main compiler screen as illustrated by the following figure Page 6 of 110 Arduino Compatible Compiler for LabVIEW Analog Input Temperature vi Compiler Tools Help Load VI Ctrl 0 zn Open Front Panel Ctri E a ef gt lt gt Recent Vis Examples b Analog Debugging Digital Input Polling a Button wi EEPROM Digital Output Blink LED wi Rc i rT Running interpreter Finished Interrupts Generating downloadable proi cp Compiling Finished Exit Ctrl Q TSXperts Arduino Compatible Temperature vi Memory Optimization Loading configuration RGB LED Initializing packages SD Card Preparing boards Serial Build options changed rebuild SPI Sketch uses 1 724 bytes 5 o Tone Global variables use 17 bytes 0 of dynamic memory leaving 2 031 bytes for local variables Maximum is 2 048 bytes vr Arduino Uno on COMI13 Porting an Arduino or Custom User Library to LabVIEW The Arduino Compatible Compiler for LabVIEW includes the ability for users to port existing Arduino Libraries and creat
212. efines the unique identifier to the data saved in Program Memory Data is the array of data to write to Program Memory Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more in
213. eived NACK on transmit of address 3 received NACK on transmit of data 4 other error 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data w
214. el It is recommended to use enumerated data types instead of string variables to wire to the case selector of a Case Structure 13 On Case Structures can I specify a range and multiple items in a Case as illustrated by the figure below Page 8 of 110 Number Lis2h Yes ranges and multiple items on Case Structures are supported by the Arduino Compatible Compiler for LabVIEW 14 Can I use property nodes for my VI controls and indicators No property nodes are not supported by the Arduino Compatible Compiler for LabVIEW 15 I am getting a long compilation error stating there is no match for operator when I use a subVI Why SubVI_Array_Test ino 117 28 error no match for operator operand types are LVOneDimArray lt short unsigned int gt and LVOneDimArray lt long unsigned int gt SubVI_Array_Test ino 117 28 note candidate is You probably have a data type mismatch between the subVI input terminals and the variables that are wired to such terminals The Arduino Compatible Compiler for LabVIEW currently does not support automatic coersion of datatypes wired to subVI input terminals and will generate a compilation error 16 Can I embed the Arduino Compatible Compiler in another VI I created Yes there is a Compile vi that is included in the Compilation subpalette of the Arduino Compatible Compiler for LabVIEW palette that can be used to automate the compilation or compilation and download of a VI to an Arduino targe
215. elect Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Fr status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of th
216. eled Serial 1 and the third is labeled Serial 2 and so forth Therefore use the corresponding Serial X Open vi to interface with those serial ports Using any serial primitive outside this palette will result in a compilation error 2015 TSXperts Aledyne All rights reserved Serial Open VI Installed With Arduino Compatible Compiler for LabVIEW Initializes serial communication on Serial Port 1 of the Arduino board All Arduino boards have at least one serial port also Known as a UART or USART Serial It communicates on digital pins 0 RX and 1 TX as well as with the computer via USB Thus if you use these functions you cannot also use pins O and 1 for digital input or output The Arduino Mega has three additional serial ports Serial 1 on pins 19 RX and 18 TX Serial 2 on pins 17 RX and 16 TX Serial 3 on pins 15 RX and 14 TX The Arduino Due has three additional 3 3V TTL serial ports Serial 1 on pins 19 RX and 18 TX Serial 2 on pins 17 RX and 16 TX Serial 3 on pins 15 RX and 14 TX Pins 0 and 1 are also connected to the corresponding pins of the ATmega16U2 USB to TTL Serial chip which is connected to the USB debug port Additionally there is a native USB serial port on the SAM3X chip SerialUSB This VI also sets the data rate in bits per second baud for serial data transmission For communicating with the computer use one of these rates 300 600 1200 2400 4800 9600 14400 19200 28800 38400 57600 o
217. emory on the stack and will automatically be released when the subVI completes execution The disadvantage is that there may not be enough memory available on the stack to support the required memory for a particular subVI call This would not be known until run time and may cause unexpected behavior or an unexpected exception of the executable code Placing all code at the top level VI will mean that all nodes and associated variables will be created on the stack local to the main VI and will exist for the entirety of the program execution But the stack must be large enough to support all those memory allocations For scalar types that are defined as either global variables or have an associated local variable reference static duration global variables will be used Static duration variables are allocated in global memory and persist for the lifetime of the program The advantage is that it can be known at compile time if there is enough memory on the target to support the required memory Global and static variables are the first things loaded into SRAM They push the start of the heap upward toward the stack and they will occupy this space for all eternity For arrays and strings dynamic memory allocation is used This is required due to the native operation of LabVIEW in order to support the complex behavior of these datatypes Dynamic memory allocation is the process of memory resizing as a given variable dynamically grows as the code executes Dyn
218. en or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control whe
219. eployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Expla
220. equence Diagram Disable NOTE Any code inside of a diagram disable structure will not be compiled and deployed to the Arduino target Local Variable NOTE Local Variables will be implemented as global variables on the Arduino target so its usage should be limited Global Variables NOTE These are the only way to share data between an interrupt and main VI when using interrupts on an Arduino target Beware that there must be a writer of the global somewhere in the project as writing to a global is what triggers creation of the data variable If a global is created and only read within the code a compilation error will occur 2015 TSXperts Aledyne All rights reserved Array Palette Installed With Arduino Compatible Compiler for LabVIEW Array 8 co at Initialize Array Array Max amp SortiD Array Search1D Ar ijiz2 a E Reverse 1D A Rotate 1D Ar Array Consta The Array palette contains the following LabVIEW primitives Their functionality when deployed onto an Arduino target is identical to that of LabVIEW unless otherwise specified Using any array primitive outside this palette will result in a compilation error Only 1 D Arrays are supported at this time It is strongly recommended NOT to use array functions on small Arduino targets like the Arduino Uno which only has 2k of RAM Arrays are implemented using dynamic memory allocation so it is not known until there is a runtime error if memor
221. er cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow co
222. er datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Analog Write Resolution VI Installed With Arduino Compatible Compiler for LabVIEW Implements the Arduino analogWriteResolution function and sets the resolution in bits of the Analog Write vi function This is only supported on the Arduino Due target It defaults to 8 bits values between 0 255 for backward compatibility with AVR based boards The Due has the following hardware capabilities 12 pins which default
223. er datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Analog Read Resolution VI Installed With Arduino Compatible Compiler for LabVIEW Implements the analogReadResolution Arduino function and sets the size in bits of the value returned by Analog Read vi This is only supported on the Arduino Due target It defaults to 10 bits returns values between 0 1023 from Analog Read vi for backward compatibility with AVR based boards The Arduino Due has 12 bit ADC capabilities that can be accessed by changing the resolution to 12 This will return values from Analog Read vi between 0 and 4095 bits 0 os error in no error 11 15 error out Lvs bits of analog data resolution Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Err
224. error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out i
225. error in no error 11 Slave Address is a the address of the slave device to request data from Interface is the reference to the I2C port Number of Bytes to request from the slave device specified Send Stop set to true will send a stop message after the request releasing the I2C bus If false a restart message is sent after the request The bus will not be released which prevents another master device from requesting between messages This allows one master device to send multiple requests while in control Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control whe
226. ert to roll and pitch to determine when the orientation is within a given range This is similar as to how mobile devices detect screen orientation for portrait and landscape modes c PWM Example Demonstrates how to use a PWM output on a digital pin to vary the brightness of an LED This can also be used to vary the speed of a motor for example This can be run on any Arduino board that supports a PWM on a digital output pin The Due supports true DAC outputs on pins 66 and 67 and this same example can be used to control the analog outputs of those DACs 3 Interrupts a Interrupt on Digital Edge Example This example shows how to setup a change on a digital input to trigger an interrupt to call into a callback VI In the callback VI outputs I O can be modified directly or global variables can be used to update variables shared with the main VI This example demonstrates sharing data between the interrupt callback VI and the main VI using global variables A counter is updated in the interrupt and every 5 edges the output state of a digital output pin is changed In the main VI the same output pin is reset between edge transitions b Timer Interrupt Example This example shows how to setup a microsecond based timer to trigger an interrupt to call into a callback VI In the callback VI outputs I O can be modified directly or global variables can be used to update variables shared with the main VI This example uses the onboard LED on pin 13
227. es a Sainsmart I2C LCD or I2C Adapter is being used This example has been tested with the following LCDs SainSmart IIC I2C TWI Serial 2004 20x4 LCD Module Shield The LiquidCrystal_I2C Express vi initialization is demonstrated here which hardcodes the interface pins between the LCD module and the parallel LCD b 2 Line LCD Example This example demonstrates how to initialize and write data to an I2C based LCD screen specifically a 2 Line 16 Character LCD To use the I2C LCD library most parallel LCDs can be used with a low cost Sainsmart LCD I2C Adapter The purpose of the adapter is to cut down the amount of conductors needed by using a serial I2C interface to the LCD This example assumes a Sainsmart I2C LCD or I2C Adapter is being used This example has been tested with the following LCDs SainSmart IIC I2C TWI Serial 2004 16x2 LCD Module Shield c Simultaneous LCD Example This example demonstrates how to initialize and write data to multiple I2C LCD screens at the same time Separate LCD instances are used to address each LCD in the same execution loop Each LCD must have a different I2C address since they are wired to the same I2C bus The 4x20 LCD uses I2C address 0x3F and the 2x16 LCD uses I2C Address 0x27 This example has been tested with the following LCDs SainSmart IIC I2C TWI Serial 2004 20x4 LCD Module Shield and SainSmart IIC I2C TWI Serial 2004 16x2 LCD Module Shield 7 RGB LED a Chaser Example This example demonstrates a the
228. es are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints us Data is a byte array of data read from the serial port This can be converted to a string if the data being received is ASCII by using the Byte Array to String LabVIEW primitive Bytes Read is the actual length of data read from the serial port 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control da
229. escribes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Serial 1 Open VI Installed With Arduino Compatible Compiler for LabVIEW Initializes serial communication on Serial Port 2 of the Arduino board All Arduino boards have at least one serial port also known as a UART or USART Serial It communicates on digital pins 0 RX and 1 TX as well as with the computer via USB Thus if you use these functions you cannot also use pins 0 and 1 for digital input or output The Arduino Mega has three additional serial ports Serial 1 on pins 19 RX and 18 TX Serial 2 on pins 17 RX and 16 TX Serial 3 on pins 15 RX and 14 TX The Arduino Due has three additional 3 3V TTL serial ports Serial 1 on pins 19 RX and 18 TX Serial 2 on pins 17 RX and 16 TX Serial 3 on pins 15 RX and 14 TX Pins 0 and 1 are also connected to the corresponding pins of the ATmega16U2 USB to TTL Serial chip which is connected to the USB debug port Additionally there is a native USB serial port on the SAM3X chip SerialUSB This VI
230. for the amount of time in microseconds specified in delay There are a thousand microseconds in a millisecond and a million microseconds in a second Currently the largest value that will produce an accurate delay is 16383 This could change in future Arduino releases For delays longer than a few thousand microseconds you should use the native LabVIEW Wait ms instead vo error in no error 2 0 error out vie delay in microseconds to halt program execution The largest value that will produce an accurate delay is 16383 Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used f
231. formation about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right
232. formation about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Number of Elements stored in Program Memory error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indi
233. front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describe
234. g The microcontroller responds by suspending its current activities saving its state and executing a function called an interrupt handler or an interrupt service routine ISR to deal with the event This interruption is temporary and after the interrupt handler finishes the processor resumes normal activities Refer to your specific Arduino target documentation for specific information about how many interrupts it allows and in what pins The Arduino Compatible Compiler for LabVIEW allows the programming of interrupts as well as the creation of an interrupt handling routine for the generated interrupt The following diagram is an actual shipping example that can be used as a starting point for the creation of interrupt driven Arduino VIs Sesser ALAALA AAAA AAAA AAA SESSaooR55 555555 d Remainder is not0 countin fj between 5 presses so turn LED off Output a ft B 5 Digital Input 2 Int 0 Interrupt Callback vi __ amp a CALL ic ian Enable Interrupts vi INPUT_PULLUP _ fe ie a Pin Mode vi Pin Mode vi Digital Write vi Attach Interrupt vi f Digital Write vi FALLING i The diagram above shows the specific Interrupt API VIs that ship with the compiler and allows interrupts to be configured in the Arduino target It also shows how the interrupt handling routine is configured The use of a Static VI Reference as an input to the Attach Interrupt API VI allows the user to tell the compiler which subVI wi
235. g from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the
236. get and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C write I8 VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Write the input Data to the LCD The supported datatypes include string boolean integer and floating point data types Instance 1 Data 0 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class ET Data to write to the LCD Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explai
237. he SD Card in use Data is a byte array to write to the file Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only u
238. he cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C scroll left VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Scrolls the contents of the display text and cursor one space to the left Instance 1 error in no error 11 15 error out Page 48 of 110 Lvs Instance is a reference to the instance of the LCD class Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints T status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut me
239. he data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Digital Write Port VI Installed With Arduino Compatible Compiler for LabVIEW Writes Data to a specified digital port mapped to the indicated Start Pin Only pins after the start pin will be updated In this way you can maintain data on pins of the same data port before the start
240. he error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a
241. he largest value that will produce an accurate delay is 16383 Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used
242. he shortcut menu for more information about the error source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error Tones Palette Installed With Arduino Compatible Compiler for LabVIEW Tones x 4p Q Search amp Customize l Tone Start Tone Stop The Tones palette contains Arduino specific APIs in order to start and stop tones on an Arduino target via a digital output pin These are used to generate a square wave of the specified Frequency Hz and 50 duty cycle on a digitas pin This functionality is currently not supported on the Arduino Due Use of the Tone Start vi function will interfere with PWM output on pins 3 and 11 on boards other than the Mega Itis not possible to generate tones lower than 31Hz 2015 TSXperts Aledyne All rights reserved Tone Start VI Installed With Arduino Compatible Compiler for LabVIEW Generates a square wave of the specified Frequency Hz and 50 duty cycle on a pin A Duration ms in milliseconds can be specified otherwise if unconnected or set to 0 the wave continues until a call to Tone Stop vi The pin can be connected to a piezo buzzer or other speaker to play tones Only one tone can be generated at a time If a tone is already playing on a different pin the call to Tone Start vi will have no effect If the ton
243. help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be writt
244. hich correct shows up as the first parameter in the list Value 1 is Const198 Value 2 is Const244 Value 3 is Const296 and simultaneous is Const127 Should one or more of these parameters show in the wrong order in the parameters list you would be able to spot the mistake go back to the Translator vi and change the index of the Inputs array to match the correct parameters order One quick test you can do once you are happy with the mapping of the LabVIEW API VI parameters is to use the Compile button in the Arduino Compatible Compiler for LabVIEW for the test VI you just displayed the Arduino Code for This will tell you if whatever C code you created inside the case frame for that specific API VI inside the Translator vi is properly compiling If the Arduino Compatible Compiler for LabVIEW generates a compilation error you know you need to review whatever C code you have inside the case frame Furthermore you can also copy this code from the LabVIEW screen presented and paste it directly in the Arduino IDE if you would like to experiment with the code in C within the Arduino IDE A special case to be aware of is the use of array datatypes as inputs or outputs This gets more advanced since the LabVIEW array implementation is handled in a C class located in LABVIEWDIR vi lib Aledyne TSXperts Arduino Compatible Compiler for LabVIEW Arduino Libraries LVArray LVArray h Common needs may be to index a certain element of an array get the size of
245. hin the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control
246. hin the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Close VI Installed With Arduino Compatible Compiler for LabVIEW Close the file and ensure that any data written to it is physically saved to the SD card Reference 0 error in no error 11 Xe 15 error out Ezi Reference is the reference to the SD Card in use Ss error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data wit
247. hould only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Free RAM is the amount of memory space in bytes available between the heap and the stack 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from
248. ht click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory cons
249. iant of the Arduino Nano board Other variants include atmega328 atmegal168 atmega8 atmega2560 atmega1280 16MHzatmega328 8MHzatmega328 16MHzatmegal68 8MHzatmegal68 e port specifies the serial port to use This is only requires if the download option is selected The format would be port COM1 for example e path specifies the VI path to compile or download The format would be path FILEPATH vi for example NOTE The order of commands in the command string does not matter A complete examples is as follows labview exe C Program Files x86 National Instruments LabVIEW 2014 vi lib Aledyne TSXperts Arduino Compatible Compiler for LabVIEW alvcompiler vi verify arch avr board uno path C Program Files x86 National Instruments LabVIEW 2014 examples Aledyne TSXperts Arduino Compatible Compiler for LabVIEW Analog Analog Input Temperature vi 2015 TSXperts Aledyne All rights reserved Examples Installed With Arduino Compatible Compiler for LabVIEW OO The Arduino Compatible Compiler for LabVIEW ships with various different examples to get you up and running quickly These examples have been tested on numerous Arduino platforms including the Uno Mega Leonardo Yun and Due If an example has a front panel control its data can be changed and the VI can be re compiled and downloaded to reflect the latest changes without needing to save the Page 82 of 110 VI first The following examples have been included for
250. ich prevents another master device from sending between messages This allows one master device to send multiple transmissions while in control Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the
251. igilent Analog Shield Ivlib Open Input ee 3 m _ panman z analog write s s s s s Digilent Analog Shield vlib Read Function Name Digilent Analog Shield vlib Signed g Digilent Analog Shield lvlib Write Digilent Analog Shield Ivlib Write 1 Digilent Analog Shield Ivlib Write 1 v Digilent Analog Shield Ivlib Write F Digilent Analog Shield vlib Close lt analogShield h gt lt SPLh gt Outputs Outputs selmi emi D Input Datatypes Input Datatypes p f Y a prifabel z Si input 0 Value3 error out 40 a input 1 bool i 2 input 5 Valued a o Output Datatypes input 4 Valuel Output Datatypes ff Ya feed input 3 Value2 Outputs 0 i EREE en The mapping of the input and output parameters will happen inside each case frame in the way to match the correct LabVIEW controls and indicators wired to the VI connector pane to the intended corresponding C function parameter in the function prototype Take the figure above for instance The Write Four Channels case frame is shown As you can see in the LabVIEW code in the case frame the Compiler is told that once it sees this LabVIEW VI it will use the prototype that is coded inside the case frame The following call needs to be replicated analog write unsigned int valueO unsigned int value1 unsigned int value2 unsigned int value3 bool simul We need to have analog write s s s s S S insid
252. in Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Serial Palette Installed With Arduino Compatible Compiler for LabVIEW Serial 5 Serial Open Seriall Open Serial2 Open Serial 3 Open Serial Check Serial Flush Serial Set Ti Serial Read B Se Serial rite B Serial Write S Serial Close The serial palette is used to interface with the Serial port s on the Arduino target For most boards only one serial port is available For those the Serial Open vi must be used A small number of boards like the Mega support up to 4 serial ports The second serial port is actually lab
253. in Transmission before queuing the input data then calls End Transmission after queuing the data to force all data to be sent and forces a stop or restart Begin and Queue Begin Transmission and queues the input data only Does not send a stop or restart so that additional write calls can be made before ending the transmission Queue and End Queues the input data then calls End Transmission after queuing the data to force all data to be sent and forces a stop or restart Assumes a Begin Transmission has been previously called Queue Only Only Queues the input data and does NOT call Begin or End Transmission before or after queuing the data Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain
254. in Warning from the shortcut menu for more information about the error Page 39 of 110 NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints error out passes error or warning information out of a VI to be used by other VIs Right click the error
255. in Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C write Single VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a refere
256. in conjunction with the Arduino Compatible Compiler for LabVIEW Serial Monitor to debg an embedded Arduino VI It also demonstrate how to look for memory leaks on an application that doesn t generate the expected results even though it doesn t generate a compilation error 14 Addons a Digilent Analog Shield Example This example demonstrates how to utilize the Digilent Analog Shield to acquire analog data from a signal source connected to an input analog pin on the shield and output the acquired data to an analog output pin on the same shield The analog output data will be exactly the same as the acquired analog input data This example utilizes AI O and AO O on the shield but any of the four available input output channels can be used 2015 TSXperts Aledyne All rights reserved Digital Input Polling a Button Example Installed With Arduino Compatible Compiler for LabVIEW This example shows how to read a digital input on an Arduino target This example assumes a switch is wired to the digital input therefore it implements debouncing when the input changes to a low state A digital output is toggled when the switch is pressed Instead of wiring an LED the onboard LED wired to digital pin 13 can also be used Output Digital Pin A Ji 13 Output Digital Pin Ti N OUTPUT Pin Mode wi Pin Mode wi Input Digital Pin ETA w INPUT_PULLUP 2015 TSXperts Aledyne All rights reserved Digital Output Blink LED E
257. ince 2 D arrays are not supported concatenate inputs can Page 26 of 110 Math Constants z To Pi Pi Multiplied Pi Divided By 2 Reciprocal O e log Natural Loga Natural Loga Reciprocal O Base10 Loga In2 Natural Loga Natural Loga The Numeric palette contains the following LabVIEW primitives Their functionality when deployed onto an Arduino target is identical to that of LabVIEW unless otherwise specified Using any numeric primitive outside this palette will result in a compilation error Add Subtract Multiply Divide Quotient amp Remainder Increment Decrement NOTE using this on enumerated types does not wrap around like in native LabVIEW For example if the last item in an enumerated list has a value of 3 and it is incremented native LabVIEW will output a value of 0 but the Arduino Compatible Compiler for LabVIEW will output a value of 4 The same is true for decrementing if the enumerated value is 0 It is recommended not to use enumerated types with numeric functions Add Multiply Array Elements Compound Arithmatic NOTE Invert inputs and outputs are not supported Use external boolean Not primitives instead Absolute Value Round To Nearest Scale By Power Of Two NOTE This function has a bug when running in LabVIEW For instance writing a floating point number half way between two integers to both inputs will cause an incorrect result in LabVIEW In this ex
258. information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used
259. ing it to start at an arbitrary point in its random sequence by setting seed This sequence while very long and random is always the same If it is important for a sequence of values generated by Random Number In Range vi to differ on subsequent deployments of a program use Random Seed vi to initialize the random number generator with a fairly random input such as Analog Read vi on an unconnected pin Conversely it can occasionally be useful to use pseudo random sequences that repeat exactly This can be accomplished by calling Random Seed vi with a fixed number before starting the random sequence seed to initialize the pseudo random number generator Boolean Palette Installed With Arduino Compatible Compiler for LabVIEW D P D gt An Or Exclusive Or A gt v gt de Compound Not And Not Or Not Exclusiv gt p amp Implies And Array El Or Array Ele Boolean To E False Constant The Boolean palette contains the following LabVIEW primitives Their functionality when deployed onto an Arduino target is identical to that of LabVIEW unless otherwise specified Using any boolean primitive outside this palette will result in a compilation error And Or Exclusive Or Not Compound Arithmatic NOTE Invert inputs and outputs are not supported Use external boolean Not primitives instead Not And Not Or Not Exclusive Or Implies And Or Array Elements Boolean to 0 1 True False Constant 2
260. ino SPI port with dedicated Chip Select must be used to interface to this palette 2015 TSXperts Aledyne All rights reserved Page 62 of 110 SD Open VI Installed With Arduino Compatible Compiler for LabVIEW Opens a reference to the SD card and initializes it CS Pin 0 4 Success error in no error 11 15 error out Lvs CS Pin is the SPI Chip Select pin Refer to the Arduino documentation on SPI at http arduino cc en Reference SDbegin Make sure to match the CS Pin that is appropriate for your combination of Arduino target board as well as SD Card shield Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more informatio
261. is passed to the subVI and only then updated with the output of the concatenate function However the way the Arduino Compatible Compiler for LabVIEW was designed since there is no data flow dependency between the concatenate function and the subVI there is no way to no a priori if the concatenate function will run first or the subVI will run first If the concatenate runs first the global variable will be updated with the output string of the concatenation operation Then when the subVI executes the global variable value that will be used as the input of the subVI will not be the original value prior to the concatenation operation but the value after concatenation This generates a race condition on the code The workaround to this issue is similar to the workaround to avoid global variable race conditions in general which is to make sure the order of utilization and update of the global variable is forced though data flow If that is not possible as in the example shown above the utilization of a sequence structure is advised as it forces the execution to happen in the order that it should to avoid the race condition as illustrated below StringGlob gt Test H StringGlob The second exception to be documented happens in the event of a global variable read outside a structure for loop while loop case statement etc and subsequent update to the same global variable inside the structure as illustrated by the figure below
262. is that the error clusters are part of the connector pane as well even though the original C function doesn t take an error argument As it is stressed in the Arduino Compatible Compiler user manual error clusters are only used for data flow purposes and are ignored by the compiler Therefore it is important to make sure your LabVIEW API VIs include the error input output connectors so your VIs can offer the same feature of allowing data flow to be controlled via the error cluster Page 21 of 110 gt E Digilent Analog Shield lvlib Write Four Channels vi Block Diagram File Edit View Project Operate Tools Window Help gt 11 25 4al 2 200t Avplication Font Simultaneous LE Value 0 k Value 1 m Value 2 4 Value 3 m error in no error WE error out We need to create other LabVIEW API VIs to map the other functions from our list We will omit that process in this guide as they are a repetition of this first case You can find the other API VIs for the Digilent Analog Shield at LABVIEWDIR vi lib Aledyne TSXperts Arduino Compatible Compiler for LabVIEW addons Digilent Analog Shield within the Arduino Compatible Compiler for LabVIEW installation It is a good exercise to open each LabVIEW API VI and make sure you understand the mapping of their parameters from the connector pane back to the original C function IMPORTANT It is extremely important to p
263. it representation for Red Green and Blue This does not actuall update the LED this just stores the new color setting until LED Write vi is called Instance 1 Pixel 0 Red 5 inp aam 15 error out Green 7 Blue 9 error in no error 11 Instance is a reference to the instance of the RGB LED class Pixel specifies which pixel or LED to update Red specifies the amount of red color 0 255 to output to the specified Pixel or LED Green specifies the amount of green color 0 255 to output to the specified Pixel or LED Blue specifies the amount of blue color 0 255 to output to the specified Pixel or LED Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warnin
264. ithin the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints I2C Write String VI Installed With Arduino Compatible Compiler for LabVIEW Writes data from a slave device in response to a request from a master or queues bytes for transmission from a master to slave device Automatically calls Begin Transmission before queuing the data and End Transmission after Interface 1 Slave Address 0 4 Error Data 5 Send Stop 7 error in no error 11 15 error out Lvs Slave Address is a the address of the slave device to send data to Lvs Interface is the reference to the I2C port abe Data to send to the slave device Fy Send Stop set to true will send a stop message after the transfer releasing the I2C bus If false a restart message is sent after the transfer The bus will not be released wh
265. k VI for the 2C receive interrupt 3 Write the serial message to the serial terminal Note that to address Serial port 0 a hardcoded 0 can be used for the instance If this is being used on a board with more than one serial port and it is desired to use a different port the index can be used which correlates to that port e g use 2 for port 2 2015 TSXperts Aledyne All rights reserved Digilent Analog Shield Pass Through Example Page 110 of 110 Installed With Arduino Compatible Compiler for LabVIEW This example demonstrates how to utilize the Digilent Analog Shield https www digilentinc com Products Detail cfm NavPath 2 648 1261 amp Prod TI ANALOG SHIELD to acquire analog data from a data source connected to an input analog pin on the shield and output the acquired data to an analog output pin on the shield The analog output data will be exactly the same as the acquired analog input data 1 Call Open vi to open a reference to the Analog Shield 2 Call Read vi to read the voltage on the analog pin specified 3 Call the Write vi to output the analog value read to the analog channel specified 4 Loop indefinitely NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target 2015 TSXperts Aledyne All rights reserved
266. l on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error paz error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error F status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error AE E source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error LiquidCrystal_I2C clear VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 This VI clears the LCD screen and positions the cursor in the upper left corner Instance 1 error in no error 11 15 error out Lvs Instance is a reference to the instance of
267. l string and write the loop counter to the first character offset NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target Demonstrates how to initialize and write data to multiple I2C LCD screens at the same time Separate LCD instances are used to address each LCD in the same execution loop Each LCD must have a different I2C address since they are wired to the same I2C bus This example has been tested with the following LCDs SainSmart IIC I2C TWI Serial 2004 20x4 LCD Module Shield and SainSmart IIC I2C TWI Serial 2004 16x2 LCD Module Shield The 4x20 LCD uses I2C address 0x3F and the 2x16 LCD uses I2C Address 0x27 Page 98 of 110 SDA SCL 5V GND I e HTML ITI 2C Address LCD Reference L a B Arduino 2C LCD Note LCD References must be different since we are using 2 different LCD displays 2015 TSXperts Aledyne All rights reserved Page 99 of 110 Initialize the 1 7 Configure thi Turn on the t written is th 15 Write the lo NOTE Error wir be written nor z EEPROM Example Installed With Arduino Compatible Compiler for LabVIEW This example demonstrates how to read and write data to the Arduino EEPROM Refer to the documentation of your specific Arduino target for more information on its EEPROM This example retrieves the size of your Arduino EEPROM writes values to two independent EEPROM addresses and r
268. l the time registers are stored in BCD on the DS1307 5 Format a date time string as follows MM DD YYYY HH MM SS 2015 TSXperts Aledyne All rights reserved I2C Master Slave Example Installed With Arduino Compatible Compiler for LabVIEW This example demonstrates how to send data between 2 Arduino boards using the I2C interface The Master transmitting end of the communication writes its loop and timing information to the Slave as a String The Slave receiving end of the communication registers a callback VI to be run whenever an I2C receive interrupt occurs making this an interrupt driven message handler When an I2C message comes in the data is formatted and written to the serial terminal for demo purposes only I2C Master VI Page 109 of 110 1 Call 2C Open vi to open the 2C port as a Master 2 Format a string message to be sent to the slave which includes the loop number and the millisecond tick count 3 Send the message to the Slave device at 2C Address 4 This address must match the slave address set in the Slave Arduino refer to 2C Slave vi NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target I2C Slave VI Slave Address 4 8 Bits No Parity 1 Stop Bit yp ep EF 1 Call Serial Open vi to open a serial port to write data received from the master device Note that the actual writing of data is done in the 2C receive i
269. l when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Instance is the reference to the serial port This should be passed into subsequent serial port VIs This can also be hardcoded for each subsequent serial access as follows Serial 0 Serial 1 1 Serial 2 2 and Serial3 3 Sac error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control d
270. l when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SPI Palette Installed With Arduino Compatible Compiler for LabVIEW SPI z SPIOpen SPI Open Exp SPI Set Bit Or SPI Set Clock gza bee g SPI Set Data SPI Transfer SPI Close The SPI Palette includes APIs for interfacing to other sensors and devices over an SPI port This palette only supports use of the SPI peripheral in Master mode 2015 TSXperts Aledyne All rights reserved SPI Open VI Installed With Arduino Compatible Compiler for LabVIEW Initializes the SPI bus by setting SCK MOSI and SS to outputs pulling SCK and MOSI low and SS high Note that SPI can only by used in Master Mode by this API For AVR boards the CS Pin is used to configure any digital I
271. lain Warning from the shortcut menu for more information about the error Page 66 of 110 NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Read VI Installed With Arduino Compatible Compiler for LabVIEW Read the numbers of byte from the file corresponding to the Length input Reference 0 4 Data Length 5 ro error in no error 11 15 error out Ezi Reference is the reference to the SD Card in use Ez Length is the length of data to read from the serial port Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints T status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no er
272. lain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints success indicates whether or not the position input was successfully seeked Sas error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cl
273. lation error Notice in the Serial Monitor how the available memory value drops per iteration until the output on the serial port stops being correct based on what the implemented code is doing Iteration 1 Configure an infinite loop executing once a second 2 Calculation is converted to string and appended to data to be sent to serial port 3 Append string value that is built into the array along with calculation result to be sent to serial port by Debug Tool 4 Call Debug Tool vi to send the formatted string to the serial port Note that the Get Free Memory F input is set to True This signals the Debut Tool vi to grab the available free memory and append its number of bytes to the formatted string to be sent to the serial port IterationO Result 1 000000 1452 Iteration1 Result 2 000000 1329 Iteration2 Result 6 000000 1157 Iteration3 Result 24 000000 898 Iteration4 Result 120 000000 633 Iteration5 Result 720 000000 293 99 99 Cl Autoscroll No line ending 7 9600 baud 2015 TSXperts Aledyne All rights reserved Page 95 of 110 I2C LCD 4 Line LCD Example Installed With Arduino Compatible Compiler for LabVIEW This example demonstrates how to initialize and write data to an I2C based LCD screen To use the I2C LCD library most parallel LCDs can be used with a low cost Sainsmart LCD I2C Adapter The purpose of the adapter is to cut down the amount of conductors needed by using
274. ld documentation for its Chip Select CS pin number 2 eo TT oe u m t ONTNOWY oo Wa a IN ca s SD Card Shield Arduino SD Card Page 104 of 110 Host PC VI 1 Call Compiler vi to compile and download to the Arduino target the SD Card Read Data Arduino Target vi 2 Configure the serial communication parameters 3 Flushes the serial buffer of any left over bytes 4 Read the incoming serial bytes and display them on the SD Card Data String indicator 5 Close the serial communication 6 Display any errors NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target B fa 4 Compile And Download No Error 7p babe SD Card Data 000 7 COM Port Lab lt 4 von O PTE ea recon ec L 2 BJ 5 Board Labe CPU Label Number of Bytes Received Tab pariy Stop bits fF 1 Call SD Open vi to create a reference to the SD Card used 2 Call SD File Open vi to create a reference to the file named log txt 3 Call SD File Read vi and retrieve 28 bytes from the file log txt 4 Append termination character n to be detected by host Serial Read vi 5 Call SD File Close ci to close the reference to the file named log txt 6 Call Serial Open vi to open a serial connection to the host PC 7 Call Serial Write Bytes vi to transmit the bytes read from file named via serial
275. le fashion the chances are good you have crashed the stack due to a SRAM shortage This could be due to excessive use of dynamic memory or fragmentation caused by arrays or strings On small memory targets it is recommended not to use or to limit use of arrays and strings For a complete account on memory considerations when programming your Arduino target with the Arduino Compatible Compiler for LabVIEW please refer to the section entitled Memory Management in the user manual page named Important Considerations Before Creating Arduino VIs 4 My LCD display is only showing 2 digits of precision when I write a floating point number directly to LiquidCrystal_I2C write vi Why The native LCD write API automatically truncates a floating point number to 2 significant digits If you require more precision use the Number to Fractional String primitive VI and wire the number of digits of precision needed to its corresponding input Then wire the string output of this primitive VI to the LiquidCrystal_I2C write polymorphic vi 5 Why do I get a compilation error when I right click at a unwired Case Structure tunnel and select the LabVIEW option Use Default if Unwired The Arduino Compatible Compiler for LabVIEW currently does not support the Use Default if Unwired option for Case Structures In order to avoid a compilation error you will have to right click at the unwired tunnel and create a constant to be wired to the tunnel as illustrated below
276. le pin on the LCD RWPin is the number of the controller pin that is connected to the RW pin on the LCD RSPin is the number of the controller pin that is connected to the RS pin on the LCD D4Pin is the controller pin that is connected to the corresponding data pins on the LCD The LCD can only be controlled using 4 bit mode through the four data lines d4 d5 d6 d7 D5Pin is the controller pin that is connected to the corresponding data pins on the LCD The LCD can only be controlled using 4 bit mode through the four data lines d4 d5 d6 d7 D6Pin is the controller pin that is connected to the corresponding data pins on the LCD The LCD can only be controlled using 4 bit mode through the four data lines d4 d5 d6 d7 EEEEEEEE D7Pin is the controller pin that is connected to the corresponding data pins on the LCD The LCD can only be controlled using 4 bit mode through the four data lines d4 d5 d6 d7 vie Chars defines how many characters or columns are on the LCD T Lines defines how many lines or rows are on the LCD Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Ard
277. lect Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Trigonometric Palette Installed With Arduino Compatible Compiler for LabVIEW Trigonomet
278. ll be the actual interrupt handling function In this case it sets the Interrupt Callback vi to be the subVI that will function as the interrupt handling routine The following figure illustrates the Interrupt Callback diagram pis pis i x Page 14 of 110 It is important to note that global variables are used to perform data exchange between the main VI and the interrup handling subVI Exception Cases Though great effort was applied to make sure the supported functionality of the Arduino Compatible Compiler for LabVIEW will allow the same level of flexibility and configurability that LabVIEW itself offers the compiler does present a few differences that are important to be highlighted Forbidden Characters for Controls and Indicators The forward and back slash and respectively as well as the following characters and amp can NOT be part of any controls or indicators names They are special characters that are used by the Arduino Compatible Compiler for LabVIEW Therefore the following control names X Y X Y X Y X Y X Y and X amp Y are illegal and will generate a compilation error Boolean Case Statement on non English Versions of LabVIEW One of the differences between how LabVIEW and the Arduino Compatible Compiler for LabVIEW work is related to boolean case statements LabVIEW English version will show the following implementation of a boolean case statement i pinNumber Boolean LT
279. low in a program since cluster datatypes are not supported due to low memory constraints Serial Read Bytes VI Installed With Arduino Compatible Compiler for LabVIEW Serial Read Bytes vi reads characters from the serial port into a buffer The function terminates if the determined length has been read or it times out based on the setting of Serial Set Timeout vi This VI also returns the number of characters placed in the buffer A 0 in bytes read means no valid data was found Instance 1 Length 0 4 Data 6 Bytes Read 15 error out error in no error 11 Lvs Instance is the reference to the serial port Ezi Length is the length of data to read from the serial port EH error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error Page 59 of 110 NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Fy status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred
280. loyed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOT
281. lue bs A A y y 127 gt x c Cal Page 102 of 110 Chase Every N Pixel Instance 0 1 Call RGB LED Initialize to set the Mode digital pin and number of LEDs for the strip 2 Loop for 10 times before repeating 3 Loop for every number of pixels defined to rotate For each iteration every N pixel will be turned on and off then N 1 pixels will be turned on and off then N 2 and so forth For every N pixel on the strip set the color in memory This does not actually clock out the data yet 5 After all LED color values have been updated in memory now write the data to all LEDs on the strip 6 Delay before turning the LEDs back off 7 Now turn off every N pixel then repeat for N 1 pixel 8 Loop indefinitely NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target 2015 TSXperts Aledyne All rights reserved RGB LED Rainbow Example Installed With Arduino Compatible Compiler for LabVIEW This example demonstrates a rainbow effect on a 1 wire RGB LED strip using a WS2811 or WS2812 controller Each LED in the strip is gradually changed from red to green then to blue with a blend of colors in between The LED color changing effect is staggered down the strip so not all LEDs are changed at the same time The time delay can also be adjusted to change how fast the color is changed NO Mode delay ms ra A y 800kHz_GRB
282. luster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error Page 54 of 110 NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for
283. m the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints state is the state read from the digital pin Low or High Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported
284. mended to set the Pin Mode to INPUT_PULLUP to enable the internal pull up resistor See the digital pins tutorial for more information NOTE If you do not set the Pin Mode to OUTPUT and connect an LED to a pin when calling Digital Write vi with a high input the LED may appear dim Without explicitly calling Pin Mode vi Digital Write vi will have enabled the internal pull up resistor which acts like a large current limiting resistor pin 0 state 5 lt error in no error 11 15 error out Lvs pin defines which digital pin on the Arduino to write to state is the state to write to the digital pin Low or High Ss error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints _TF status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Expla
285. mory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints I2C Write Byte VI Installed With Arduino Compatible Compiler for LabVIEW Writes data from a slave device in response to a request from a master or queues bytes for transmission from a master to slave device Interface 1 Slave Address 0 4 Error Data 5 Send Stop 7 Write Mode 9 error in no error 11 15 error out Lvs Slave Address is a the address of the slave device to send data to Lvs Interface is the reference to the I2C port Lvs Data to send to the slave device FY Send Stop set to true will send a stop message after the transfer releasing the I2C bus If false a restart message is sent after the transfer The bus will not be released which prevents another master device from sending between messages This allows one master device to send multiple transmissions while in control Loy Write Mode defines how to handle the start and end transmission calls Begin and End Calls Beg
286. n Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Bac error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints
287. n Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the Page 49 of 110 error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of t
288. n about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints success indicates whether of not the operation was successful 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error ou
289. n accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the c
290. n deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error
291. n deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C set backlight VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Turns the backlight of the LCD on or off as specified by State Instance 1 State 0 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class Fr State sets the on off state of the backlight Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints FY status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in
292. n specifies the slave select or chip select pin of the Arduino This is only relevant for the Arduino Due which supports multiple CS pins Loy order specifies the order of the bits shifted out of and into the SPI bus either LSB First least significant bit first or MSB First most significant bit first Lvs On AVR based boards Clock Divider settings are as follows 0 Divide By 4 1 Divide by 16 2 Divide by 64 3 Divide by 128 4 Divide by 2 5 Divide by 8 6 Divide by 32 The default setting is Divide by 4 which sets the SPI clock to one quarter the frequency of the system clock 4 Mhz for the boards at 16 MHz On the Arduino Due The system clock can be divided by values from 1 to 255 The default value is 21 which sets the clock to 4 MHz like other Arduino boards oq Data Mode is the SPI Data mode specifying the clock polarity and phase Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memo
293. n the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C set cursor VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Position the LCD cursor that is set the location at which subsequent text written t
294. n the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C Express VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Creates an instance of the LiquidCrystalI2C Class Also wraps all initialization by configuring the LCD data and backlight pins to the standard configuration for the LCD2004 controller The Enable Pin is set to 2 RW Pin is set to 1 RSPin is set to 0 and D4 D7 is set to pins 4 7 on the LCD controller Also the backlight pin is set to 3 and turned
295. nce cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints I2C 1 Open VI Installed With Arduino Compatible Compiler for LabVIEW Initiate the I2C 1 interface Due only SDA1 SCL1 and joins the I2C bus as a master or slave The Arduino Due has 2 I2C interfaces 20 SDA 21 SCL SDA1 SCL1 If Mode is set to Master the Slave Address is ignored If Mode is set to Slave the Slave Address will be applied Slave Address 0 3 4 Interface Mode 5 error in n
296. nce to the instance of the LCD class If only one LCD is used then this should be set to 0 Write the input Data to the LCD The supported datatypes include string boolean integer and floating point data types Instance 1 Data 0 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class ser Data to write to the LCD Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control
297. ndicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C write I32 VI Installed With Arduino
298. ndicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints sour
299. ned int value OutO Outi Out2 Out3 void loop Read the signal in from port INO store in value value analog read 0 Output quantization AND the 16 bit data with masks containing ONES for bits of the original that will pass through while ZEROES for bits remove information for those bits effectively reducing the ADC resolution OutO value Out O 16 bit full resolution 2 16 65 536 quantization levels Outi value amp OxFCOO Out 1 6 bit 2 6 64 quantization levels Out2 value amp OxFOOO Out 2 4 bit 2 4 16 quantization levels Out3 value amp OxCO00 Out 3 2 bit 2 2 4 quantization levels write the data back out Remember writing 4 channels out takes nearly 4x as long analog write Out0O Out1 Out2 Out3 true takes 50uS analog write Out1 faster one channel reading is the longer part but this only takes 30uS The code above executes an analog read and operates on the value read creating four other variables OutO through Out3 Each of these variables is passed as a parameter to the analog write function One can see on this example that the Same analog read was used but that the analog write was used with a different construct In this example the analog write function receives four values and a boolean parameter as inputs whereas in the previous example it received a channel number and a value as parameters API functions with different constructs c
300. no target This is an important tradeoff the programmer needs to consider in order to organize the overall application to have a good level of modularity and readability but also enable execution without problems on small Arduino targets An alternative to passing arrays to subVI inputs is to use global variables This is common practice in embedded programming where a large array is read or modified in functions or subroutines as a global variable In LabVIEW specific terminology this would be the equivalent to creating a global variable array that is then accessed from within a subVI Obviously the programmer needs to be very careful with potential race conditions that can be introduced with the user of Global Variables Refer to the shipping examples for an example of utilization of global variables to access an array from within a subVIs without passing a wire in or out of the SubVI One last point that is important in regards to optimization of subVIs is to describe how the diagram inside the subVI is optimized For the Page 12 of 110 sake of illustration assume the Add_subvi vi in the example above implements the following diagram Array In gt i gt Array Out In this case the original rules of inplaceness optimization are followed for the diagram inside a subVI More specifically in the diagram presented above since the incoming array to both the Add and Increment nodes are not branched inplaceness optimization will be applied and a
301. not be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Ar
302. not be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Serial Write Bytes VI Installed With Arduino Compatible Compiler for LabVIEW Writes binary data to the serial port This data is sent as a byte or series of bytes Instance 1 Data 0 error in no error 11 15 error out Lvs Instance is the reference to the serial port Data is the array of bytes to write to the serial port Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control Page 60 of 110 dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used
303. nstalled With Arduino Compatible Compiler for LabVIEW Page 81 of 110 fae cmd exe Shortcut Microsoft Windows Version 6 1 7600 Copyright lt c gt 28669 Microsoft Corporation All rights reserved C Windows S ysWOW64 gt cd C Program Files x86 gt National Instruments LabUIEW 2614 C Program Files x86 gt National Instruments LabUIEW 2614 gt labview exe C Program Files x86 gt National Instruments LabUIEW 2614 ui 1lib Aledyne TS amp perts Arduino C ompatible Compiler for LabVUIEW alvcompiler vi verify arch avr board uno p ath C Program Files x86 gt National Instruments LabUIEW 2614 examples A ledyne T Skperts Arduino Compatible Compiler for LabVIEW Analog fAnalog Input Temperatur le vi C Program Files x86 gt National Instruments LabUIEW 2614 gt Sketch uses 1 724 bytes lt 572 gt of program storage space Maximum is 32 256 bytes Global variables use 17 bytes z of dynamic memory leaving 2 031 bytes for lo cal variables Maximum is 2 048 bytes The Arduino Compatible Compiler for LabVIEW can be run from a command prompt by calling alvcompiler vi located at LabVIEW vi lib Aledyne TSXperts Arduino Compatible Compiler for LabVIEW alvcompiler vi From any directory gt C Program Files x86 National Instruments LabVIEW 2014 labview exe Arduino Compatible Compiler for LabVIEW alvcompiler vi compile download arch architecture board BOARDTYPE cpu CPUTYPE po
304. nstance of the LCD class If only one LCD is used then this should be set to 0 Positions the cursor in the upper left of the LCD That is use that location in outputting subsequent text to the display To also clear the display use LiquidCrystal_I2C clear vi instead Instance 1 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class Ss error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to
305. nterrupt callback but the port must be opened once during initialization To address the correct port in the interrupt without using the Instance number from Serial Open vi use a hardcoded index correlating to the serial port number refer to I2C Receive Interrupt vi 2 Call 2C Open vi to open the 2C port as a Slave Use slave address 4 This must match the slave address set in the master refer to 2C Master vi 3 Callback reference to the 2C Receive Interrupt handler This Callback will be called whenever data is sent from the master to this slave device Attached the Callback VI to the 2C receive interrupt 5 At this point the standard loop does nothing and the interrupt handler received and processes the data Any code that takes significant processor time like LCD display control would be placed in the main while loop and data can be shared between the callback and the main loop using global variables NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target I2C Slave Receive Interrupt VI a 1 Call 2C Read All Bytes vi to read all bytes from the 2C port 2 Format the serial data to print for debugging including the number of bytes received from the interrupt and the data actually received Note that the number of bytes received is automatically provided by the interrupt handler and this input must be wired to the connector pane of the callbac
306. nto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Page 52 of 110 LiquidCrystal_I2C write Double VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Write the input Data to the LCD The supported datatypes include string boolean integer and floating point data types Instance 1 Data 0 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class osc Data to write to the LCD Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no
307. ntrol when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning
308. ntrol when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Write Array VI Installed With Arduino Compatible Compiler for LabVIEW Writes Data to the referenced file Reference 0 Data 5 A error in no error 11 15 error out Ez Reference is the reference to t
309. nu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints zs error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Ex
310. o error 11 15 error out ET Slave Address defines the slave address to apply when in Slave mode EET Mode defines whether to make this node a master or a slave If a Slave is specified the Slave Address should be set appropriately Se error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Fy status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning co
311. o error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Bytes
312. o low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or r
313. o the LCD will be displayed Text will be placed at the specified character and line Instance 1 character 0 line 5 E 15 error out error in no error 11 Instance is a reference to the instance of the LCD class line where to place text at on the LCD T character offset of where to place text at on the LCD Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatype
314. occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported
315. oint out that like the Digilent Analog Shield set of API VIs that were created to illustrate how existing Arduino libraries can be ported into the Arduino Compatible Compiler for LabVIEW any user created set of API VIs need to reside in the directory LABVIEWDIR vi lib Aledyne TSXperts Arduino Compatible Compiler for LabVIEW addons This indicates to the compiler that those VIs are user created and they corresponding C code can be displayed by the Arduino Code Display Tool explained in step 5 below Step 4 Using the LabVIEW Library Template The Arduino Compatible Compiler for LabVIEW product ships with a library template located at LABVIEWDIR vi lib Aledyne TSXperts Arduino Compatible Compiler for LabVIEW addons Template This template was created to simplify the task of porting Arduino Libraries to work with the Arduino Compatible Compiler for LabVIEW The template contains the following components e LabVIEW Library This is the lvlib that will contain all your API VIs e Translator vi This is where all the magic happens This is where you will map each of the API VIs parameter list add the needed list of includes and defines as well as add any C code needed for a given API VI e Add and Subtract These are two API VIs created as an example They are password protected such that the Compiler recognizes them as Arduino APIs The password is template e Test vi This VI is used to test the implementation of the Add and Su
316. ol The Arduino Compatible Compiler for LabVIEW also relies on the installation of the Arduino IDE version 1 5 7 or later which must be installed on the same computer the compiler is installed The user needs to make sure the computer has a compatible version of the Arduino IDE according to the above The Arduino IDE can be downloaded from this link prior to attempting to run the Arduino Compatible Compiler for LabVIEW If the Arduino IDE is not installed the following error will be displayed 3 Warning Arduino install not found Please download version 1 5 7 or higher to proceed This can be downloaded from http arduino cc en main software Ok 2015 TSXperts Aledyne All rights reserved Porting an Arduino Library to the Arduino Compatible Compiler for LabVIEW The Arduino Compatible Compiler for LabVIEW ships with LabVIEW API VIs with support for several Arduino Shields Those VIs can be found as part of the product function palette refer to the Product User Manual for more information on how to access the product function palette Starting in version 1 0 0 17 of the Compiler users can port existing Arduino Libraries and create their own LabVIEW API VIs to bring a library s functionality into LabVIEW This allows the community to take advantage of the existing ecosystem of Arduino shields and to create even more complex applications in LabVIEW for the Arduino platform Support for this feature is community based at www geve
317. on Addr The I2C Address to be used usually 0x3F or decimal 63 for the Sainsmart controller Chars specifies the number of characters in a line of the LCD Lines specifies how many lines are in the LCD Instance 1 Addr 0 Chars 5 Lines 7 error in no error 11 15 error out Instance is a reference to the instance of the LCD class Addr The I2C Address to be used usually 0x3F or decimal 63 for the Sainsmart controller Chars defines how many characters or columns are on the LCD Lines defines how many lines or rows are on the LCD EH error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error 7 status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error E EE source describes the origin of the error or warning Right click the error in contro
318. ons 1 Are there any characters that are not allowed in control and indicator names The Arduino IDE follows the general rules of the C programming language Certain characters and names are not allowed and thus should not be used in controls and or indicators names The Arduino Compatible Compiler for LabVIEW internally protects against the use of some of these characters and names but not all Care must be taken by the programmer to avoid the use of special characters and C Page 7 of 110 specific identifiers in variable names For example the following control names should be avoided even though they are allowed String enum const struct int word boolean char byte unsigned signed long Care should be taken not to use similar names 2 LabVIEW for Windows uses NaN or Not a Number for calculations such as divide by O or a square root of a negative number Does the Arduino Compatible Compiler for LabVIEW also support invalid calculations using NaN No the Arduino Compatible Compiler for LabVIEW will not return NaN in the event of an invalid computation In fact the embedded program will crash under the situation Extra care needs to be taken by the program to protect from such calculations 3 My application doesn t perform the way I designed it There are no compilation errors but it is not consistent in the way it behaves and sometimes it just crashes What is happening If your program is failing in an otherwise inexplicab
319. onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Bytes available at the serial port 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and
320. ontrol dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino tar
321. or NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Exp
322. or flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information
323. or more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Instance is the reference to the serial port This should be passed into subsequent serial port VIs This can also be hardcoded for each subsequent serial acce
324. or or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Righ
325. ormation about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Serial Close VI Installed With Arduino Compatible Compiler for LabVIEW Disables serial communication allowing the RX and TX pins to be used for general input and output To re enable serial communication call Serial X Open vi Instance 1 15 error out error in no error 11 Lvs Instance is the reference to the serial port Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortc
326. ormation about the error displayed E datatype_images ci32 gif The code input identifies the error or warning The pop up option Explain Error or Explain Warning gives more information about the error displayed The source string describes the origin of the error or warning The pop up option Explain Error or Explain Warning gives more E datatype images Coto information about the error displayed status provides status information after a compile and or download is complete This is usually the output physical space that the VI was compiled down to If there is an error during compilation details will be provided on the error out terminal The error out cluster passes error or warning information out of a VI to be used by other VIs The pop up option Explain Error or Explain Warning gives more information about the error displayed datatype imagestibool aif The status boolean is either TRUE X for an error or FALSE checkmark for no error or a warning The pop up option Explain Error or E ype_imag g Explain Warning gives more information about the error displayed E datatype_images ii32 gif ee acca identifies the error or warning The pop up option Explain Error or Explain Warning gives more information about the The source string describes the origin of the error or warning The pop up option Explain Error or Explain Warning gives more E datatype_imagesiistr gif information about the error displayed Command Line Interface I
327. ormation out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since clust
328. ot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the e
329. other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due
330. out the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Serial Read Bytes Until VI Installed With Arduino Compatible Compiler for LabVIEW Serial Read Bytes Until vi reads characters from the serial port into a buffer until the terminator character is detected the determined length has been read or it times out based on the setting of Serial Set Timeout vi This VI also returns the number of characters placed in the buffer A 0 in bytes read means no valid data was found Instance 1 Length 0 4 Data Term Char 5 6 Bytes Read error in no error 11 15 error out Lvs Instance is the reference to the serial port Ez Length is the length of data to read from the serial port L
331. out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints sou
332. ow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Comparison Palette Installed With Arduino Compatible Compiler for LabVIEW Comparison 23 pe gt gt Equal Not Equal Greater gt B gt pe Greater Or E Less Or Equal EqualTo0 Not Equal To po B p gt B gt Greater Than Less Than0 Greater Or E Less Or Equa gt Select Max amp Min The Comparison palette contains the following LabVIEW primitives Their functionality when deployed onto an Arduino target is identical to that of LabVIEW unless otherwise specified Using any Comparison primitive outside this palette will result in a compilation error Equal Not Equal Greater Less Greater Or Equal Less Or Equal Equal to 0 Not Equal
333. ow memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Serial Set Timeout VI Installed With Arduino Compatible Compiler for LabVIEW Sets the maximum milliseconds to wait for serial data when using Serial Read Bytes vi Default is 1000ms if not specified or called Instance 1 Timeout ms 0 error in no error 11 15 error out Lvs Instance is the reference to the serial port Ez Timeout ms is the maximum time in milliseconds to wait for data on the serial port Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires shoul
334. pin Refer to the Arduino documentation and schematic to determine the mapping of the pin to port For example if the Start Pin specified is wired to PORTB 2 on the Arduino only bits 2 8 will be updated from the input lt Data gt Bit 1 will retain its current value Note You must ensure to set the direction of each individual pin using Pin Mode vi before this can be used Start Pin 0 Data 5 Poru error in no error 11 ant 15 error out Lvs Start Pin defines which digital pin on the Arduino to start updating values to Lvs Data is the 8 bit port value to write to the specified pin s port Only the data starting from Start Pin will be updated Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and sel
335. pins Loy Data Mode is the SPI Data mode specifying the clock polarity and phase Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE er
336. plain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error o
337. plain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the Page 44 of 110 error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or w
338. put will be converted to a number 9 I drop a Tick Count primitive in my VI but I notice that everytime the Arduino board is power cycled the Tick Count returns to 0 Why The Arduino targets do not have an internal RTC Real Time Clock as part of its architecture The RTC is the function of processors that maintains an internal tick count when power is lost or the microcontroller is restarted Since the Arduino targets do not have that function its internal counter will restart when the software is restarted 10 Why can t I use Clusters in my VI with the Arduino Compatible Compiler for LabVIEW Clusters are indeed a great way to organize complicated data structures However since the Arduino targets are small microcontrollers in nature part of the memory optimization implemented in the compiler was the suppression of Clusters due to its inherit overhead 11 Are 64 bit data types supported What about fixed point numbers Where can I find a list of all data types supported by the Arduino Compatible Compiler for LabVIEW 64 bit and fixed point numbers are not supported For a full list of all data types supported by the Arduino Compatible Compiler for LabVIEW refer to TBD 12 Can I wire a string variable to the case selector terminal of a Case Structure The short answer is yes it is supported by the compiler However it is not recommended since each string case will take up a significant amount of memory to store the case selector lab
339. r 115200 You can however specify other rates An optional second argument configures the data parity and stop bits The default is 8 data bits no parity one stop bit Page 56 of 110 Speed 0 4 Instance Serial Settings 5 J Re error in no error 11 15 error out EA Speed is the baud rate of the serial port T Serial Settings defines the data width parity and stop bits of the serial port Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wire
340. r in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are
341. r occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Page 70 of 110 abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster da
342. r on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string d
343. r out Ezy Reference is the reference to the SD Card in use Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used
344. r the Tools menu File Compiler m PETE COM14 Detect Ports Serial Monitor Status 4 Select the board you wish to target from the list of supported boards by clicking at the Board item under the Tools menu Once the steps above have been performed you should see the target configuration on the lower right hand corner of the main compiler window Arduino Yun Arduino Duemilanove or Diecimila gt Port Detect Ports Serial Monitor paaen teen 4 Arduino Mega or Mega 2560 b Arduino Mega ADK Compiling C Program Files x86 TSXperts Arduino Compatible Com _Temperature vi Running interpreter Finished Generating downloadable program Compiling Finished Loading configuration Initializing packages Preparing boards Verifying Sketch uses 1 724 bytes 5 of pro Global variables use 17 bytes 0 o variables Maximum is 2 048 bytes Arduino Leonardo Arduino Micro Arduino Esplora Arduino Mini Arduino Ethernet Arduino Fio Arduino BT LilyPad Arduino USB LilyPad Arduino Arduino Pro or Pro Mini Arduino NG or older Arduino Robot Control Arduino Robot Motor Arduino Gemma Arduino Due Programming Port Arduino Due Native USB Port Page 4 of 110 At this point your compiler is ready to download compiled VIs to the configured Arduino compatible target Compiling and Downloading a LabVIEW VI to your Arduino Compatible
345. r warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C scroll right VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Scrolls the contents of the display text and cursor one space to the right Instance 1 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class Ss error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported
346. raints Debug Tool VI Installed With Arduino Compatible Compiler for LabVIEW The Debug Tool is a VI that can be placed into existing Arduino LabVIEW code to aid in debugging The Debug Tool will open and and close the serial port connection every time it is called therefore it will create extra overhead in the execution of the Arduino VI that should be taken into account The defaul serial communication parameters are 8bits No parity 1 stop bit The user can change the baud rate Page 35 of 110 via the Baud control Wire the string to send to the host via serial communication to the Value string control Get Free Memory F 1 Baud 0 Value 5 error in no error 11 15 error out Baud specified the baud rate for the serial communication with the Arduino Target TFH Get Free Memory F If set to True Debug Tool will extract the number of available bytes in RAM and append it along with Value to be written to serial port Value is the string that will be written to the serial port error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the clust
347. rce string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Digital Read Port VI Installed With Arduino Compatible Compiler for LabVIEW Reads the value from a specified digital port mapped to the indicated pin and returns the entire 8 bit value of the data on the port Any pin on the port can be input Refer to the Arduino documentation and schematic to determine the mapping of the pin to port For example if the indicated pin is wired to PORTB 2 on the Arduino the 8 bit value of Port B will be read and returned Note You must ensure to set the direction of each individual pin using Pin Mode vi before this can be used in 0 4 Data o error in no error 11 nu 15 error out Lvs pin defines which digital pin on the Arduino to read from its mapped Port Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and sele
348. rduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the e
349. read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints I2C Request From VI Installed With Arduino Compatible Compiler for LabVIEW Used by the master to request bytes from a slave device The bytes may then be retrieved with the I2C Read vi and I2C Read All Bytes vi functions Interface 1 Slave Address 0 Number of Bytes 5 Send Stop 7 15 error out
350. reasonable assumption these targets will behave similarly to the ones listed above and would therefore work with the compiler they are not officially supported by TSXperts Aledyne Arduino Mega 2560 Arduino Mega ADK Arduino Diecimila Arduino Micro Arduino Esplora Arduino Mini Arduino Ethernet Arduino Fio Arduino BT LilyPad Arduino Arduino Pro Arduino Pro Mini Arduino NG Arduino Robot Control Arduino Robot Motor You will need one of the boards listed above and a USB cable connected to the PC running this compiler Configuring the Arduino Compatible Target Make sure your Arduino compatible target is connected to your PC and that the appropriate driver for it has been successfully installed To verify this navigate to your PC Device Manager and expand the Ports section Under Ports you should be able to see your connected Arduino as shown by the following illustration gay Device Manager e aema File Action View Help m e m H m DVD CD ROM drives QA Human Interface Devices IEEE 1394 Bus host controllers I Imaging devices i Brother MFC 7860DW LAN Officejet 4500 G510g m E Jungo b lt gt Keyboards R Mice and other pointing devices Ms Monitors s Network adapters amp DW1520 Wireless N Half Mini Card a Intel R 82577LM Gigabit Network Connection EF Microsoft Virtual WiFi Miniport Adapter Wp SonicWALL Virtual NIC a Teredo Tunneling Pseudo Interfac
351. red or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not s
352. rence to the serial port Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Fy status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed
353. res are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Fr status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning
354. res are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning fro
355. ric Cosine Tangent Inverse Sine Inverse Cosine Inverse Tang The Trigonometric palette contains the following LabVIEW primitives Their functionality when deployed onto an Arduino target is identical to that of LabVIEW unless otherwise specified Using any trigonometric primitive outside this palette will result in a compilation error Sine Cosine Tangent Inverse Sine Inverse Cosine Inverse Tangent 2015 TSXperts Aledyne All rights reserved Utilities Palette Installed With Arduino Compatible Compiler for LabVIEW Page 32 of 110 Check Unuse Sleep Mode EEPROM Read EEPROM Write Get EEPROM Read Progra Write Progra Debug Tool The utilities palette contains utility APIs for interfacing with advanced modes of the Arduino target 2015 TSXperts Aledyne All rights reserved Check Unused RAM VI Installed With Arduino Compatible Compiler for LabVIEW Reports the space between the heap and the stack which is the amount of dynamic memory avaiable in the system It does not report any de allocated memory that is buried in the heap Buried heap space is not usable by the stack and may be fragmented enough that it is not usable for many heap allocations either The space between the heap and the stack is what you really need to monitor if you are trying to avoid stack crashes Mal ts coro error in no error 11 15 error out Sach error in can accept error information wired from VIs previously c
356. riting software for the board Arduino can be used to develop interactive objects taking inputs from a variety of switches or sensors and controlling a variety of lights motors and other physical outputs Arduino projects can be stand alone or they can communicate with software running on your Page 2 of 110 computer e g Flash Processing MaxMSP This document assumes basic familiarity with the Arduino hardware More about Arduino can be found at www arduino cc en Guide HomePage What you Need to Get Started The first step that needs to be taken prior to using the Arduino Compatible Compiler for LabVIEW is the installation of the Arduino IDE The Arduino Compatible Compiler for LabVIEW works with the Arduino IDE version 1 5 7 and above Download the latest Arduino IDE from www arduino cc en Main Software Another important point is that the Arduino IDE needs to be installed to its default location If the user changes the directory the Arduino IDE is installed to during the installation process the Arduino Compatible Compiler for LabVIEW will not be able to find it and an error will result when launching the Compiler At the time of this writing the compiler was fully tested for code compilation and download to the following Arduino boards Arduino Yun Arduino Uno Arduino Due Arduino Mega Arduino Leonardo Arduino Nano The following targets were tested for code compilation but not for code download Though there is a
357. rmation about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EEPROM Read VI Installed With Arduino Compatible Compiler for LabVIEW Reads a byte from the specified EEPROM Address If an address is specified outside the bounds of available EEPROM memory a 0 will be returned for Data Refer to the Arduino board s documentation to determine the maximum EEPROM address that can be accessed or use Get EEPROM size vi Note The Arduino Due does not contain an EEPROM therefore EEPROM functions are currently not supported on this target Address 0 4 Data os error in no error 11 15 error out vie Address defines which EEPROM address on the Arduino to read data from Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help
358. rning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EEPROM Write VI Installed With Arduino Compatible Compiler for LabVIEW Writes a byte of Data to the specified EEPROM Address on the Arduino If an address is specified outside the bounds of available EEPROM memory no data will be written Refer to the Arduino board s documentation to determine the maximum EEPROM address that can be accessed or use Get EEPROM size vi Note The Arduino Due does not contain an EEPROM therefore EEPROM functions are currently not supported on this target Address 0 P Data 5 15 error out error in no error 11 T Address defines which EEPROM ad
359. rning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the erro
360. rol on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints exists returns True if the file is found in the SD Card and False otherwise Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since clus
361. ror in no error 11 8 8 15 error out Lvs CS Pin specifies the slave select or chip select pin of the Arduino This is only relevant for the Arduino Due which supports multiple CS pins Ssh error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel
362. ror occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints us Data is a byte arr
363. ror wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Bas error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the
364. ror wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Open VI Installed With Arduino Compatible Compiler for LabVIEW Opens the file held in the File input The file can be opened to read or read and write depending on the selection made in the Mode input Note The SD library uses 8 3 filenames which have at most 8 characters for files and directories optionally followed by a period and a filename extension of at most three characters File and directory names are uppercase although systems that use the 8 3 standard are usually case insensitive File 0 4 File Reference Mode 5 i 6 opened error in no error 11 15 error out abe File holds the file name for the file that will be open Limited to 8 characters plus a 3 character extension for new files Loy Mode holds the type of open operation that will be executed Ssh error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used
365. rror NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C write U8 VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Write the input Data to the LCD The supported datatypes include string boolean integer and floating point data types Instance 1 Data 0 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class Lvs Data to write to the LCD Sesh error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or F
366. rror NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints RGB LED Palette Installed With Arduino Compatible Compiler for LabVIEW RGB LED Strip E kanl RGB LED Initi RGB LED Set RGB LED Set RGB LED Write
367. rror in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe
368. rror information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cann
369. rs datatypes Let s take an example to illustrate this statement Take the Write Four Channels API VI its function prototype is repeated here for convenience void analogShield write unsigned int valueO unsigned int value1 unsigned int value2 unsigned int value3 bool simul This is the construct used for Write Four Channels API VI The function prototype states that the function needs four unsigned int parameters and one boolean parameter and that the function doesn t return anything i e no outputs only inputs We need to create a password protected LabVIEW VI that has the same matching elements of the original function prototype The password used for the Digilent APIs is template The figure below shows the concept E Digilent Analog Shield lvlib Write Four Channels vi Heine lac E So File Edit View Project Operate Tools Window Help gt e I 20pt Application Font e oY E E Value 9 Simultaneous rh 9 Value 1 f 7 ry 0 4 Value 2 Value 3 ry 0 ri 0 J 2 error in no error error out status code status code s Jo 4 Fo source source A quick look at the VI block diagram shows that the API VI is really only a shell mapping the inputs and output parameters for the API function it ports It is important to see how the data type for each of the controls match the ones declared in the C function prototype Another point to highlight
370. rt PORTNAME path FILE vi or from the LabVIEW directory C Program Files x86 National Instruments LabVIEW 2014 gt labview exe Arduino Compatible Compiler for LabVIEW alvcompiler vi compile download arch ARCHITECTURE board BOARDTYPE cpu CPUTYPE port PORTNAME path FILE vi e compile or download specifies whether to compile the VI only or compile then download it e package specifies the vendor the first level folders inside the hardware directory Default arduino boards use arduino If no package is specified arduino is used e arch specifies the architecture Use either avr or sam The format would be arch avr for example e board is the actual board to use For example uno for the Arduino Uno diecimila for the Arduino Duemilanove or Diecimila mega for the Arduino Mega The format would be board uno for example Other variants include yun uno diecimila nano mega megaADK leonardo micro esplora mini ethernet fio bt LilyPadUSB lilypad pro atmegang robotControl robotMotor arduino_due_x_dbg and arduino_due_x cpu specifies a cpu variant of the specified board This is only relevant to certain boards and should NOT be included unless the board has more than one CPU type Refer to the Arduino Compatible Compile for LabVIEW Board menu for a list of boards that have more than one CPU type For example for the nano the following would be included cpu atmegal168 to select the megai68 var
371. ry constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow
372. rywhere com as we encourage sharing of the created API VIs with the community This document will present the process for one to port an existing Arduino Library through an example We will port the library for the Analog Shield by Digilent http www digilentinc com Products Detail cfm NavPath 2 648 1261 amp Prod TI ANALOG SHIELD It is assumed at least a medium level of familiarity with the C language by the developer as example Arduino code that is part of the library will need to be read and understood as well as some lines of C code will have to be written by the Page 18 of 110 developer as part of the process Step 1 Installing the Arduino Library The first step in the process is the installation of the library the developer wishes to port into the LabVIEW Compiler In our case the latest library can be found at https github com mwingerson analogShield You will need to open the Arduino IDE and install the desired library The following article http www arduino cc en Guide Libraries provides detailed information on how to perform a library installation on your Arduino IDE Once the library has been installed you should be able to open one of the library s shipping examples from the Arduino IDE To do that go to File gt Examples as illustrated below Edit Sketch Tools Help New Ctrl N Open Ctrl O Open Recent gt Sketchbook ee a Examples j A Close Ctrl W a i Save Ctrl S 07 Display r
373. s are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written
374. s are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help
375. s are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the
376. s as True if the file held by the Filename input exists on the SD Card Filename 0 4 exists error in no error 11 15 error out EA Filename holds the name of the file to be searched for in the SD Card Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in cont
377. s error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in
378. s reserved Structures Palette Installed With Arduino Compatible Compiler for LabVIEW Structures z 1 For Loop While Loop Case Structure Flat Sequenc o a Diagram Dis Local Variable Global Varia The Structures palette contains the following LabVIEW primitives Their functionality when deployed onto an Arduino target is identical to that of LabVIEW unless otherwise specified Using any structure outside this palette will result in a compilation error For Loop NOTE It is not advised to use auto indexing outputs as this can result in memory starvation and forces reallocation of memory which can take excessive processor cycles for small Arduino targets It is also recommended to minimize the use of shift registers and do not use them for large arrays as they use excessive memory as multiple copies are required to implement shift registers While Loop NOTE It is not advised to use auto indexing outputs as this can result in memory starvation and forces reallocation of memory which can take excessive processor cycles for small Arduino targets It is also recommended to minimize the use of shift registers and do not use them for large arrays as they use excessive memory as multiple copies are required to implement shift registers Case Structure NOTE outputs of case structures cannot be set to Use Default If Unwired All outputs must be wired otherwise a compilation error will result Flat S
379. s should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Instance is the reference to the serial port This should be passed into subsequent serial port VIs This can also be hardcoded for each subsequent serial access as follows Serial 0 Serial 1 1 Serial 2 2 and Serial3 3 Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicato
380. s should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C write U16 VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Write the input Data to the LCD The supported datatypes include string boolean integer and floating point data types Instance 1 Data 0 error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class vie Data to write to the LCD Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about
381. s the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints RGB LED Set Brightness VI Installed With Arduino Compatible Compiler for LabVIEW Sets the LED brightness on a scale of 0 255 on the entire strip Instance 1 Brightness 0 error in no error 11 15 error out Lvs Instance is a reference to the instance of the RGB LED class Lvs Brightness sets the LED brightness on a scale of 0 255 on the entire strip Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to
382. sed for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Bac error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and sele
383. sed for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or
384. select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Serial Flush VI Installed With Arduino Compatible Compiler for LabVIEW Waits for th
385. select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory con
386. shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Error indicates the status of the transmission 0 success 1 data too long to fit in transmit buffer 2 received NACK on transmit of address 3 received NACK on transmit of data 4 other error Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help
387. since cluster datatypes are not supported due to low memory constraints data returns the data read from the analog pin based on the full scale resolution of the pin Page 36 of 110 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOT
388. single memory copy will be created to handle the array operations for the entire diagram To summarize how subVIs are handled in regards to memory optimization an extra memory copy is created for input variables or in textual programming language terminology a local variable is created on the stack or on the heap for strings and arrays However from that point on the inplaceness optimization rules are applied to the local variable However at the end of the routine another copy of the variable must be made to handle the subVI output The next scenario to cover in regards to inplaceness optimization is the utilization of structures A LabVIEW structure is herein being defined as any node that contains a diagram in itself such as While Loops For Loops Case Structures and Flat Sequence Structures Take the following example 132 Array Out The exact same logic explained for the case of the subVI optimization is applied to the case of structures In the example above a memory copy is created to handle the input variable to the For Loop the array constant and another one to receive the output value from the For Loop However inside the For Loop a single memory copy is used to handle all operations that modify the input array One other case to be considered is the wiring of the For Loop N terminal inside the For Loop diagram Consider the following scenario On this case the compiler will create an extra variable to store the v
389. source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints success returns whether or not the operation was successful 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the
390. ss as follows Serial 0 Serial 1 1 Serial 2 2 and Serial3 3 Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the clus
391. ssed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datat
392. ssed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only
393. sses error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow
394. straints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SPI Set Data Mode VI Installed With Arduino Compatible Compiler for LabVIEW Sets the SPI data mode that is clock polarity and phase For the Arduino Due the clock divider setting is applied only to the device connected to the specified CS Pin CS Pin 0 Data Mode 5 error in no error 11 15 error out Lvs CS Pin specifies the slave select or chip select pin of the Arduino This is only relevant for the Arduino Due which supports multiple CS
395. t Architecture specifies the architecture of the arduino core either avr or sam Board specifies the type of arduino board and must be one of the following yun uno diecimila nano mega megaADK leonardo micro esplora mini ethernet fio bt LilyPadUSB lilypad pro atmegang robotControl robotMotor arduino_due_x_dbg arduino_due_x CPU specifies the CPU variation of the specified board if more than one CPU is available This is only relevant to certain boards and should be left blank unless the board has more than one CPU type Refer to the Arduino Compatible Compile for LabVIEW Board menu for a list of boards that have more than one CPU type Possible variations include atmega328 atmega168 atmega8 atmega2560 atmega1280 16MHzatmega328 8MHzatmega328 16MHzatmega168 8MHzatmega168 Package is the identifier of the vendor the first level folders inside the hardware directory Default arduino boards use arduino The error in cluster can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs The pop up option Explain Error or Explain Warning gives more information about the error displayed The status boolean is either TRUE X for an error or FALSE checkmark for no error or a warning The pop up option Explain Error or datatype_images cbool gif P E Explain Warning gives more inf
396. t There is also a command line interface 17 I have a password protected subVI named Test vi as part of my top level VI Why do I get a compilation error stating Arduino function Test not supported The Arduino Compatible Compiler for LabVIEW does NOT support password protected subVIs If such subVI is used as part of a VI you will get the compilation error you reported 2015 TSXperts Aledyne All rights reserved Important Considerations Before Creating Arduino VIs The Arduino hardware is composed of a single small microcontroller and some basic components to which your VI will get compiled and downloaded to As with any embedded target some important considerations about memory optimization need to be made in order for your target to run more complex programs The LabVIEW programming language was created with the regular personal computer in mind as the target Moreover LabVIEW has graphical user interface capabilities that obviously are not applicable to a headless embedded target For convenience the Arduino Compatible Compiler for LabVIEW installs its own function palette into the LabVIEW functions palettes It is highly encouraged that the user work from within this palette when creating VIs to be compiled to an Arduino target VIs from other palettes are not supported by the compiler and their use will cause a compilation error as follows The compiler encountered a problem and was unable to compile the input VI s We
397. t Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Tick Count Micros VI Page 31 of 110 Installed With Arduino Compatible Compiler for LabVIEW Returns the number of microseconds in ticks us since the Arduino board began running the current program This number will overflow go back to zero after approximately 70 minutes On 16 MHz Arduino boards e g Duemilanove and Nano this function has a resolution of four microseconds i e the value returned is always a multiple of four On 8 MHz Arduino boards e g the LilyPad this function has a resolution of eight microseconds Note there are 1 000 microseconds in a millisecond and 1 000 000 microseconds in a second GO 0 ticks us ticks us is the number of microseconds since the Arduino board began running the current program Insert Nop VI Installed With Arduino Compatible Compiler for LabVIEW Inserts a nop no operation instruction to induce a very short delay of one instruction The delay is based on the CPU architecture For example on the ATMega168 running at 16MHz each nop statement executes in one machine cycle yielding a 62 5 ns nanosecond
398. t click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to Page 42 of 110 help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due t
399. t click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since clust
400. t indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints sourc
401. t menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints I2C Read All Bytes VI Installed With Arduino Compatible Compiler for LabVIEW Reads all available bytes from the specified I2C interface Interface 1 4 Data error in no error 11 15 error out Lvs Interface is the reference to the I2C port Seach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wire
402. t supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C set backlight pin VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the instance of the LCD class If only one LCD is used then this should be set to 0 Sets the appropriate pin and polarity of the backlight control pin of the sainsmart controller By default pin should be set to 3 and polarity set to false to drive the backlight correctly Page 47 of 110 Instance 1 pin 0 polarity 5 lt error in no error 11 15 error out Lvs Instance is a reference to the instance of the LCD class vie pin defines which pin the backlight is wired to on the LCD module LFH polarity defines the polarity of the backlight pin on the LCD module This is usually false for the Sainsmart I2C LCD modules Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be
403. ta within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Flush VI Installed With Arduino Compatible Compiler for LabVIEW Ensures that any bytes written to the file are physically saved to the SD card This is done automatically when the file is closed Reference 0 error in no error 11 15 error out Ez Reference is the reference to the SD Card in use Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when dep
404. taflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster can
405. target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Bas error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shor
406. tatypes are not supported due to low memory constraints CSV Data is a copy of the formatted CSV line that was saved to the log file Sas error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow contro
407. tcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error Page 46 of 110 NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LiquidCrystal_I2C home VI Installed With Arduino Compatible Compiler for LabVIEW The Instance is a reference to the i
408. tement into a Boolean type as illustrated below Case Structure Radix Setting LabVIEW allows the programmer to right click at Case Structure and change the display Radix SASS ALAA Visible Items gt Help Examples Numeric 1324 Description and Tip Breakpoint b Structures Palette d lt Auto Grow Exclude from Diagram Cleanup Ls AAAA AAAA AAAA AAAA SAANA AA AAAS Replace with Stacked Sequence Remove Case Structure Add Case After Add Case Before Duplicate Case Delete This Case Remove Empty Cases Show Case 0 Default Make This Case 0 Default Make This The Default Case Hex Properties i Octal Binary This allows the programmer to switch the Case Statement over to Hexadecimal Octal or Binary numeric data types in addition to the Decimal data type The Arduino Compatible Compiler for LabVIEW does NOT support any Case Statement Radix other than the Decimal data type Espcial care should be taken by the developer to avoid this optional selection as depending on the values entered by the user the compilation may actually complete without errors However the functionality of the deployed VI may differ from the intended functionality by the programmer Password Protected SubVIs The Arduino Compatible Compiler for LabVIEW does NOT support password protected subVIs If such subVI is used as part of a VI a compilation error is generated String Arrays The Arduino Compatible Compiler for LabVIEW
409. ter cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Serial 2 Open VI Installed With Arduino Compatible Compiler for LabVIEW Initializes serial communication on Serial Port 3 of the Arduino board All Arduino boards have at least one serial port also Known as a UART or USART Serial It communicates on digital pins 0 RX and 1 TX as well as with the computer via USB Thus if you use these functions you cannot also use pins O and 1 for digital input or output The Arduino Mega has three additional serial ports Serial 1 on pins 19 RX and 18 TX Serial 2 on pins 17 RX and 16 TX Serial 3 on pins 15 RX and 14 TX The Arduino Due has three additional 3 3V TTL serial ports Serial 1 on pins 19 RX and 18 TX Serial 2 on pins 17 RX and 16 TX Serial 3 on pins 15 RX and 14 TX Pins 0 and 1 are also connected
410. ter datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The er
411. the LCD class Sc error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino
412. the array or obtain a pointer to the array within the C code in the Translator vi For example if an input array is called Array123 one can index the 10th element of that array using the syntax Array123 10 One can obtain the size of the array with the syntax Array123 size and can obtain a C pointer to the array using Array123 ptr These may be required in order to pass array data to C functions that expect it You can refer to LVArray h for a complete list of available array C methods One very important thing to point out is that the Arduino Code Tool will only work for user created library API VIs and will generate an error if any LabVIEW primitive is included as part of the test VI Therefore make sure the test VI you create is used only to map the API VI parameters as explained in this guide Step 6 Testing the API VIs Once you have completed the process above for all LabVIEW API VIs and all of them are compiling without errors the best way to make sure your implementation is sound is to replicate the shipping examples from the Arduino Library but using your newly created LabVIEW API VIs and the Arduino Compatible Compiler for LabVIEW Make sure you replicate the exact functionality the library C code example does and compare the results Once they match for the example and you exercise all functions of your library you are done and your library is ready for Page 24 of 110 distribution 2015 TSXperts Aledyne All right
413. the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints LF status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explai
414. the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD Data Logger VI Installed With Arduino Compatible Compiler for LabVIEW This VI executes all tasks required by a simple datalogger application The VI was designed in a manner to be dropped as a subVI inside a loop of on a more elaborate datalogger application Refer to the Datalogger vi shipping example It assumes the utilization of a SD Card shield in conjunction with the Arduino target board File Name 5 Append Timestamp 7 CS Pin 11 3 CSV Data Timestamp 10 Data 9 error in no error 8
415. the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported d
416. the serial port This can be converted to a string if the data being received is ASCII by using the Byte Array to String LabVIEW primitive Bytes Read is the actual length of data read from the serial port error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information ab
417. the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sleep Mode Power Down VI Installed With Arduino Compatible Compiler for LabVIEW Puts the microcontroller to sleep using the SLEEP_M
418. then converted to Fahrenheit and written to the serial port every 200ms On AVR targets only one Chip Select pin pin 10 is supported by the SPI peripheral however on Due targets other CS Pins can be selected on the front panel before downloading 10 I2C a DS1307 Real Time Clock Example This example demonstrates how to set and read the current time from a DS1307 Real Time Clock RTC This RTC is used on the Arduino Datalogger Shield which also comes equipped with an SD card slot To set the current time enable the Set control and populate the date structure with the current date time then download the code first Then turn off Set and download again to read the time only The current date time will be maintained after power cycle if the battery is installed in the shield b Master Slave Example This example demonstrates how to send data between 2 Arduino boards using the I2C interface The Master transmitting end of the communication writes its loop and timing information to the Slave as a String The Slave receiving end of the communication registers a callback VI to be run whenever an I2C receive interrupt occurs making this an interrupt driven message handler When an I2C message comes in the data is formatted and written to the serial terminal for demo purposes only 11 EEPROM a EEPROM Read Write Example This example demonstrates how to read and write data to the Arduino EEPROM Refer to the documentation of your specific
419. tion about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sac error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indic
420. tion about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator o
421. tion of the native LabVIEW error cluster The VI shown above will be compiled in a way that the 2000 milliseconds delay will execute after the Tone Start API function finishes its execution and Tone Stop API function starts its execution following data flow programming However it is important to highlight the fact that the information carried by the error cluster itself is not meaningful to the compiler This means code like the snippet below will not generate the expected result and a compilation error will be generated pinNumber 9 error out error in no error FS Pin Mode vi Tone Startvi Tone Stop vi Typedefs Typedefs are also a great way to organize data structures However for the same reason as clusters are not supported typedefs are not supported by the compiler either The only exception to this rule is for information passed into Arduino Compatible Compiler specific APIs that take a typedef as an input as shown in the next figure This code snippet will compile with no issues Page 10 of 110 Memory Management As mentioned previously the Arduino target requires stringent memory management in order to execute complex applications Therefore care must be taken by the programmer to maximize the potential of the target This section explains how the compiler handles memory management and optimization and outlines good practices that should be followed by the programmer to achieve better memory management
422. to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Sas error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when
423. to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Fr status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Page 64 of 110 Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target
424. to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data wit
425. to low memory constraints Compilation Palette Installed With Arduino Compatible Compiler for LabVIEW Compilation x as Compile This palette contains an API in order to programmatically call the Arduino Compatible Compiler for LabVIEW to compile and download VIs from a customized VI or user interface There is also a VI that can be called from a command line interface in order to instantiate the compiler from another program or programming language 2015 TSXperts Aledyne All rights reserved Compile VI Installed With Arduino Compatible Compiler for LabVIEW Calls the Arduino Compatible Compiler for LabVIEW and either compiles only or compiles and downloads the specified VI to the specified Arduino target board If the specified board has multiple CPU types Page 80 of 110 then it must be identified in CPU Some Boards only have one CPU types in which the CPU field can be left blank x Compile E datatype_images cenum gif x datatype_images cpath gif x datatype_images cstr gif E datatype_images cstr gif E datatype_images cstr gif E datatype_images cstr gif x datatype_images cstr gif x datatype_images ccclst gif E datatype_imagesiistr gif E datatype_images icclst gif Compile Options specifies either compile only or compile and download to an Arduino target VI Path specifies the VI to compile or download to the specified target COM Port specifies the Serial port of the Arduino targe
426. to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Pin Mode VI Installed With Arduino Compatible Compiler for LabVIEW Configures the specified pin to behave either as an input or an output using direction See the Arduino description of digital pins for details on the functionality of the pins As of Arduino 1 0 1 it is possible to enable the internal pullup resistors with the mode INPUT_PULLUP Additionally the INPUT mode explicitly disables the internal pullups on fe direction 5 error in no error 11 15 error out Lvs pin defines which digital pin on the Arduino to configure Loy direction defines the data direction of the digital pin selected input output or internal pullup Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Wa
427. to the corresponding pins of the ATmega16U2 USB to TTL Serial chip which is connected to the USB debug Page 57 of 110 port Additionally there is a native USB serial port on the SAM3X chip SerialUSB This VI also sets the data rate in bits per second baud for serial data transmission For communicating with the computer use one of these rates 300 600 1200 2400 4800 9600 14400 19200 28800 38400 57600 or 115200 You can however specify other rates An optional second argument configures the data parity and stop bits The default is 8 data bits no parity one stop bit Speed 0 _ 4 Instance Serial Settings 5 error in no error 11 15 error out EA Speed is the baud rate of the serial port T Serial Settings defines the data width parity and stop bits of the serial port Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X
428. traints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataf
429. ue to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD Card Palette Installed With Arduino Compatible Compiler for LabVIEW SD Card z2 Ww Oo Paz g AY Ww o my A gt gt L T SD File Positi SD File Bytes rt y oe m Ww m m am SD Remove F SD Format C SD Data Log The SD Card palette includes APIs for interfacing to a file system on an SD card for creating reading and writing files and directories An Ardu
430. uino boards those with the ATmegai68 or ATmega328 this function works on pins 3 5 6 9 10 and 11 On the Arduino Mega it works on pins 2 13 and 44 46 Older Arduino boards with an ATmega 8 only support Analog Write vi on pins 9 10 and 11 The Arduino Due supports Analog Write vi on pins 2 through 13 plus pins DACO and DAC1 Unlike the PWM pins DACO and DAC1 are Digital to Analog converters and act as true analog outputs You do not need to call Pin Mode vi to set the pin as an output before calling Analog Write vi The Analog Write function has nothing to do with the analog pins or the Analog Read function On the Arduino Due there are 2 true DAC s To access these outputs use pin 66 for DACO and pin 67 for DAC1 pin 0 PWM Value 5 error in no error 11 15 error out Lvs pin defines which analog pin on the Arduino to write data to For the Due use pin 66 for DACO and pin 67 for DAC1 Lvs PWM Value defines the value to write to an analog pin using pulse width modulation Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the
431. uino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more inf
432. uino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 1324 code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints a Page 45 of 110 abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more informa
433. uld only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target
434. ument Engineering Workbench by National Instruments LabVIEW is a graphical programming language that uses icons instead of lines of text to create applications In contrast to text based programming languages that use instructions to determine the order of program execution LabVIEW uses dataflow programming In data flow programming the flow of data through the nodes on the block diagram determines the execution order of the VIs and functions VIs or virtual instruments are LabVIEW programs that imitate physical instruments This document assumes basic familiarity with LabVIEW For more information about LabVIEW visit www ni com labVIEW The Arduino Compatible Compiler for LabVIEW is a true compiler in the sense that a LabVIEW VI will be compiled into the Arduino compatible programming language downloaded to the Arduino target and will execute embedded in the target It is important to highlight a basic difference between the actual compilation of a LabVIEW VI into an Arduino target and a simple communication between an Arduino sketch running in the target and a LabVIEW VI as provided by other existing toolkits Any Arduino compatible hardware can be a target for the Arduino Compatible Compiler for LabVIEW Arduino is a tool for making computers that can sense and control more of the physical world than your desktop computer It s an open source physical computing platform based on a simple microcontroller board and a development environment for w
435. unning in an infinite loop In regular LabVIEW this code actually executes exactly as such two parallel loops doing computation with no stop condition If the above VI is compiled using the Arduino Compatible Compiler for LabVIEW since the compiler doesn t support multi threading the code will be compiled but execution will happen sequentially Meaning one loop will execute through completion and following the second loop will start its execution In this case since both loops are infinite loops only one of the loops will execute and the second will never get executed Since there is no multi threading in the target the concept of thread priority does not apply to the Arduino Compatible Compiler for LabVIEW Therefore one cannot predict which of the two loops will be placed ahead of the other and will be executable The best way to avoid situations like this is to use data flow to control the order of multiple loop execution if an application requires more than a single loop Interrupts Programming and Handling One of the most useful functions of an embedded target is its ability to generate interrupts and allow the programmer to create what is called interrupt handler functions An interrupt is a signal to the microcontroller emitted by hardware indicating an event that needs immediate attention An interrupt alerts the microcontroller to a high priority condition requiring the interruption of the current code the microcontroller is executin
436. upported due to low memory constraints I2C Palette Installed With Arduino Compatible Compiler for LabVIEW Page 74 of 110 12C 2 Write BC Attach R It BC Attach R The I2C Palette includes APIs for interfacing to other sensors devices and Arduinos over an I2C port An Arduino I2C port and peripheral using 2 digital pins must be used to interface to this palette Configuration as a Master or Slave device is supported as well as I2C receive interrupts 2015 TSXperts Aledyne All rights reserved I2C Open VI Installed With Arduino Compatible Compiler for LabVIEW Initiate the I2C interface SDA SCL and joins the I2C bus as a master or slave If Mode is set to Master the Slave Address is ignored If Mode is set to Slave the Slave Address will be applied Slave Address 0 m 4 Interface oe 15 error out error in no error 11 Lvs Slave Address defines the slave address to apply when in Slave mode Lo 4 Mode defines whether to make this node a master or a slave If a Slave is specified the Slave Address should be set appropriately Sec error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wi
437. urce string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SPI Open Express VI Installed With Arduino Compatible Compiler for LabVIEW Initializes the SPI bus by setting SCK MOSI and SS to outputs pulling SCK and MOSI low and SS high Note that SPI can only be used in Master Mode by this API For AVR boards the CS Pin is used to configure any digital I O pin as an output for SPI transactions For the Arduino Due the CS Pin is configured to be directly managed by the SPI interface and must be one of the allowable CS Pins Note that once the pin is configured you can t use it anymore as a general I O unless you call SPI Close vi on the same pin Also configures the clock rate data mode and bit order in the same initialization call The only pins that can be configured to be managed by SPI interface are the Arduino Due s Slave Select pins 4 10 52 and 54 correspond to AO Page 71 of 110 CS Pin 0 order 5 Clock Divider 7 15 error out Data Mode 9 error in no error 11 Lvs CS Pi
438. uster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Data returns the byte of data read from the specified EEPROM Address Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Wa
439. uster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Disable Interrupts VI Installed With Arduino Compatible Compiler for LabVIEW Disables interrupts you can re enable them with Enable Interrupts Interrupts allow certain important tasks to happen in the background and are enabled by default Some functions will not work while interrupts are disabled and incoming communication may be ignored Interrupts can slightly disrupt the timing of code however and may be disabled for particularly critical sections of code error in no error 11 15 error out Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or
440. uster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Size VI Installed With Arduino Compatible Compiler for LabVIEW Get the size of the file in number of bytes Page 67 of 110 Reference 0 4 bytes Ld error in no error 11 15 error out Ezi Reference is the reference to the SD Card in use Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypa
441. ut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints FY status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezy code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on
442. vs Term Char defines the character to stop reading when it is received Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints T status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wir
443. way to organize data in LabVIEW they do create extra overhead to the generated code Therefore in the interest of minimizing unnecessary overhead and getting the most out of small Arduino targets clusters are not supported by the Arduino Compatible Compiler for LabVIEW The compiler will throw an error if a cluster is used in an Arduino vI However there is one small exception to this rule the native LabVIEW Error Cluster Data flow programming is the basis of the LabVIEW programming language In summary the order which a LabVIEW VI executes is determined by the way that data gets transferred across wires on the block diagram That is called data flow programming For more information on data flow programming visit http www ni com video 1875 en A good practice in creating a LabVIEW VI is to always make sure the programmer is in control of the execution order of the VI Such practice helps in avoiding race conditions and some other very difficult to debug issues with the code The utilization of the Error Cluster as a mechanism to control data flow is good practice to ensure data flow is being properly utilized The following VI utilizes this concept to ensure a delay of 2000 milliseconds will be executed after Tone Start has completed execution and before Tone Stop starts executing pinNumber 9 error out error in no error pRa As such LabVIEW Compatible Compiler for Arduino will not generate a compilation error due to the utiliza
444. which will add 10 to each element of the input array In this case since the input array is of fixed size the LabVIEW compiler and the Arduino Compatible Compiler for LabVIEW will reuse the input array memory via inplaceness optimization to serve as the memory space for the Output Array variable In this example only one instance of an array variable is created and reused throughout the entire execution Let us now evaluate a second example gt amp 32 Output Array gt amp s2 Output Array 2 This example extends the code for the previous example by adding an extra Add function to be executed to the same array that was created by the Initialize Array function In this case it is not possible for the compiler to reuse the same memory space at the output of the two separate Add functions Because the output of the initialize array function has a wire branch the compiler must create two copies of data for the inputs to each add function As a rule of thumb when an array variable or in LabVIEW terminology a wire is branched to be consumed by more than one function the compiler will not be able to do inplace optimization and an extra copy of the array will be created This is an extremely important concept by embedded programmers Furthermore only functions that don t modify the size of the array as part of its operation are candidates for inplace optimization On the examples presented above the size of the input array to
445. wo Channels API VI void analogShield write unsigned int valueO unsigned int value1 unsigned int value2 bool simul This is the construct used for Write Three Channels API VI Page 20 of 110 void analogShield write unsigned int valueO unsigned int value1 unsigned int value2 unsigned int value3 bool simul This is the construct used for Write Four Channels API VI At this point we have all we need in order to start our work in LabVIEW Step 3 Creating the LabVIEW API VIs Now that we have determined the list of all API VIs that will be created as well as their respective parameter list it is time to actually create them The way the Arduino Compatible Compiler identifies that a VI is an Arduino primitive or in our case an Arduino Library VI is through password protection If a VI is password protected the Arduino Compatible Compiler for LabVIEW will not attempt to interpret the content of the subVI itself and will expect to see an implementation for the subVI in C code Since the work we are doing is porting existing C code from an Arduino library so it gets bundled along with the other code that is generated from LabVIEW primitives each of the LabVIEW API VIs will need to be password protected We need to create a LabVIEW API VI per function API that we have defined in step 2 Moreover each of the LabVIEW API VIs will have to have a connector pane that matches the parameter list of the API function as well as the paramete
446. written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Data is a byte of data read from the I2C port 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Page 76 of 110 status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints code is the error or warning code Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcu
447. xample Installed With Arduino Compatible Compiler for LabVIEW Page 84 of 110 Digital Write vi EENET shed ceded dakstd chek chk gad kel aa 1 Call Pin Mode vi to set the output digital pin to an output 2 Call Pin Mode vi to set the input button digital pin to an input with an internal pullup to pull the voltage high when the button is not pressed Call Digital Write VI to initialize the output pin to OV LED off 4 Call Digital Read vi to read the state of the button If it is not pressed the voltage will be high 5 If the button ts pressed we must debounce it by adding a small delay and reading the state again since this is a switch This is not required if the input being measured is from a contactless output 6 Read the digital input again 7 If the input is still low pressed then turn on the output LED 8 Loop indefinitely NOTE Error wire is used for flow control only and data on clusters cannot be written nor accessed while deployed on an Arduino target This example shows how to set an Arduino digital pin to an output then toggle the voltage between low OV and high 5V to drive an LED on and off Instead of wiring an LED the onboard LED wired to digital pin 13 can also be used Digital Pin A l ONTNOUVY Page 85 of 110 Digital Pin Digital Write vi eat Digital Write vi HIGH Y E Pin Mode vi Call Pin Mode vi to set the digital pin to an output
448. xplain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ez code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints abe source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Bytes Available defines how many bytes are available at the I2C port for reading Sa error out pa
449. y VI Installed With Arduino Compatible Compiler for LabVIEW Reads data previously stored in flash program memory The data previously stored in program memory is only available as read only to your program through this function This is a good way to get use of more memory for read only data that is known at compile time like lookup tables NOTE The input array Name must be a control or constant and must be directly wired to this function Name 0 n 4 Data Index 5 15 error out error in no error 11 EA Name defines the unique identifier to the data saved in Program Memory T Index defines the index of the data to read from in Program Memory Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error in control on the front panel an
450. y be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints Ezi code is the error or warning code Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster
451. y has been exhausted In this case the program may start to act irregular and there is no deterministic way to verify if memory has been exceeded The Check Unused RAM utility VI may be used to estimate available RAM while a program is running to determine free space Array Size Index Array Replace Array Subset Build Array Page 25 of 110 NOTE It is strongly recommended NOT to use this function as it will be slow and can easily starve the memory of Arduino targets due to low memory availability and dynamic memory allocation only be used with this function Initialize Array Array Max amp Min Sort 1D Array Search 1D Array Reverse 1D Array Rotate 1D Array Array Constant 2015 TSXperts Aledyne All rights reserved Numeric Palette Installed With Arduino Compatible Compiler for LabVIEW E gt Subtract Multiply gt Quotient amp Increment Decrement i gt Multiply Arra Compound Absolute Val Round To N E gt gt Scale By Pow Square Root Square Negate Reciprocal Random Nu Random Nu gt 23 Numeric Co Enum Const Data Manipu Conversion Math Consta Data Manipulation n Rotate Left Rotate Right Rotate Logical Shift EH E m 16 16 Split Number Join Numbers Swap Bytes Swap Words Bco ot O1 ECD BCD to Binary Binary to BCD Conversion a amp Search A Customize String To Byt Byte Array T Also s
452. y used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints E source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints 5 error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and se
453. y used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints source string describes the origin of the error or warning Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints SD File Seek VI Installed With Arduino Compatible Compiler for LabVIEW Seek to a new position in the file which must be between 0 and the size of the file inclusive Reference 0 4 success Position 5 error in no error 11 15 error out Ez Reference is the reference to the SD Card in use Es Position is the file position seeked Sach error in can accept error information wired from VIs previously called Use this information to decide if any functionality should be bypassed in the event of errors from other VIs Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the err
454. ypes are not supported due to low memory constraints EA source describes the origin of the error or warning Right click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints bytes is the number of bytes that corresponds to the file size Sa error out passes error or warning information out of a VI to be used by other VIs Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow control when deployed onto an Arduino target and the data within the cluster cannot be written or read The error wires should only be used to help control dataflow in a program since cluster datatypes are not supported due to low memory constraints status is TRUE X if an error occurred or FALSE checkmark to indicate a warning or that no error occurred Right click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error NOTE error wires are only used for flow co

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