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User Manual - Sensor Platform EVK
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1. Sensor Evaluation Kit USER MANUAL Sensor Evaluation Kit User Manual Rev1 0 Contents 1 General Information and Introduction 0 0 0 0 ccc ccc cc cccccacccececececececeeeeeeeueneueavavavetauatenersnsuenenenens 3 Aryl Tess ee e E rere e E sodeeac esac coat abix olenencsevecmanaads 3 We We Siar enre ae E E ise rdtaseneseseicesess 3 Ta oUon censor ProOQUCIS riir sanien iE eee eee ee 4 2 Base Board Overvie W cccccccccccecccecucecececaeeueneueeeaeaeaeaeaeaueceueneneeeaeaeaeauaeeneneneneaeaeatatataneteneneenatas 5 LA lt 216 e G 721 r E E AA A E A 5 a N E E ee arte eee eee ee ee ee ee 9 3 Breakout Board Overview sicsccicscsesavevisdseac oeeseriveksdisiawlasuees icin ikon dlaeteidenaia vaviiaeideeneennteenavienei 10 Srl all Sensor Breakout BOA stosincaccniancxedsewiareesdesonseucidsasstbaisiabiatstans EEEE NEERA 10 3 2 Ambient Light Sensor Breakout Boada sss eee ee 12 SA BH1620FVYC Breakout Board ccisccacscciin sedan neacieanckedsadmaseacansahensa asnaevanenseadsncasiiheaweate 12 Oe BHIZ721FVG Breakout Board aisccodeusscccienesnanisosanteoavacuedseeniewnsdoensawadeeneeinessseosedeeate 14 39 UV Sensor Breakout Boan wx scscccenucrscesw rnn eee EENAA EEEE 16 Sal MESTI Brakoul POr 1 N 16 3 4 MEMS Sensor Breakout Board s 18 34 1 KIVIXG1 Breakout Board ciicexiiaciesnanieccedsanpidsbiwadetensiveessidebsdeasbidehesaaiaeniwedasddneuderxtars 18 3 5 Temperature Sensor Breakout Board sese eee 21 35 1 BDEOGOOG Breakout Boa
2. Loading Software Files Into the Base Board 24 Sensor Evaluation Kit User Manual Rev1 0 Notes No copying or reproduction of this document in part or in whole is permitted without the consent of ROHM Co Ltd The content specified herein is subject to change for improvement without notice The content specified herein is for the purpose of introducing ROHM s products hereinafter Products If you wish to use any such Product please be sure to refer to the specifications which can be obtained from ROHM upon request Examples of application circuits circuit constants and any other information contained herein illustrate the standard usage and operations of the Products The peripheral conditions must be taken into account when designing circuits for mass production Great care was taken in ensuring the accuracy of the information specified in this document However should you incur any damage arising from any inaccuracy or misprint of such information ROHM shall bear no responsibility for such damage The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products ROHM does not grant you explicitly or implicitly any license to use or exercise intellectual property or other rights held by ROHM and other parties ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information The Products specified in thi
3. Sith ia k Sonac Senecre gl aamir f Jonin et Bm HT l FT Sorar orao Heh Figure 32 KMX61 Breakout Board Schematic Acceleration values X Y and Z of the KMX61 are calculated using the following equations ACCEL_XOUT ACCEL L Sensitivity 9 ACCEL_YOUT Sensitivity ACCEL_ZOUT Sensitivity Where ACCEL_XOUT are the X axis accelerometer outputs ACCEL_XOUT_L OAh and ACCEL_XOUT_H OBh ACCEL_YOUT are the Y axis accelerometer outputs ACCEL_YOUT_L OCh and ACCEL_YOUT_H ODh ACCEL_ZOUT are the Z axis accelerometer outputs ACCEL ZOUT l OEh and ACCEL_ZOUT_H OFh ACCEL ig ACCEL ig Resolution bits Range Sensitivity Typ counts g 1024 1024 12 Table 5 KMX61 Breakout Board Acceleration Sensitivity In the default software setting the KMX61 is configured to operate at 14bit resolution and 2g 19 Sensor Evaluation Kit User Manual Rev1 0 The magnetic values X Y and Z of the KMX61 are calculated using the following equations MAG MAG_XOUTxSensitivity T MAG MAG_YOUTxSensitivity HT MAG MAG_ZOUTxSensitivity T Where MAG_XOUT are the X axis magnetometer outputs MAG _XOUT_L 12h and MAG _XOUT_H 13h MAG _YOUT are the Y axis magnetometer outputs MAG _YOUT_L 14h and MAG _YOUT_H 15h MAG _ZOUT are the Z axis magnetometer outputs MAG ZOUT L 16h and MAG _ZOUT_H 16h Sensitivity refers to the Magnetic Sensitivity Typ 0 146 uT count The
4. data rate of 9600bps The output data will be displayed on the terminal screen If no output is displayed please go to Appendix A Programming the Base Board Instructions to program re program the Base Board USB Cable oil a L FLL i ros 3 Bw Duce ce 2 R Rd EEEk 1 k Figure 2 Base Board and Breakout Board Connection Sensor Evaluation Kit User Manual Rev1 0 Category Session Basic options for your PuTTY session Logging Terminal Keyboard Spec ty the destination you want to connect to Serial line esc Bell Comp Features Connection type Viindow Raw Telnet Alopin SSH Appearance E Batang Load save or delete a stored seasion Transation Saved Sermone Selection Colours Defaut Settings gt Connection Data Proy Taine ogn H SSH Geral Chaa window on end Away Never Only on clean end Figure 4 Base Board Sample Output without Breakout Board 1 3 Supported Sensor Products Part Number Sensor Type Sensor Control Code BU52011HFV Hall Sensor a BH1620FVC ent L R BH1721FVC T S BDE0G00G LE Table 1 Supported Sensor Products Sensor Evaluation Kit User Manual Rev1 0 2 Base Board Overview 2 1 Hardware The block diagram of the Base Board is show in Figure 5 LAPIS Semiconductor s ML610Q112 MCU is used to interface with the Breakout Board via Sensor Interface Headers and with the PC via the UART to USB IC FT230XS R Sensor
5. EO600G are connected to the Base Board via the ADCO pin of Sensor Interface Header 2 and GPIOO pin of Sensor Interface Header 1 respectively Header J6 is used to set the detection temperature Figure 35 BDEO600G Breakout Board Block Diagram 21 Sensor Evaluation Kit User Manual Rev1 0 SPIO F3 x GFP x eT TET Eder 7 GPIO K N GPIOS PER Sarps WOO TE 1 U52 VDD O SensorinterfaceHeader 3 Sergi T Sensi Suena 302 erai AA Sensi Bengis Figure 36 BDEO600G Breakout Board Schematic Designator OOSTOn Detection Temperature C J6 2 71 Table 6 BDEO600G Breakout Board Jumper Positions The temperature of the BDEO600G sensor is calculated as follows Temp Temp C U sensitivity Where V is the voltage at the output pin of BDEO600G and V is the output voltage at Temp 1 753 V 30 C Sensitivity refers to the temperature sensitivity Typ 10 68 mV C The feedback LEDs display the 8bit ADC value scaled down from the 10bit ADC at the output pin of BDEO600G via 2bit right shift Figure 37 BDEO600G Breakout Board Sample Output 22 Sensor Evaluation Kit User Manual Rev1 0 Appendix A Programming the Base Board Instructions This appendix explains how to program the default software into the Base Board using the DI U8 Debugger Step 1 If the U8 Code Development tools are not installed on your PC please install them from the CD included with the nanoEASE
6. Evaluation Kit Base Board External Power Header Switch il CN USB Connector Type A Plug Push Button oma e oof Debug Header Feedback LEDs 11811881 Figure 5 Base Board Hardware Block Diagram len FLEDOLSIA Sid Figure 6 Base Board Top View Sensor Evaluation Kit User Manual Rev1 0 Designator Position D04101 10A J 1 EXT_PWR External Power Source selected 2 OPEN No Power Source selected S T RUS VBUS Source selected 1 USR_RST User Reset selected 2 3 NE_RST nanoEASE Reset selected Table 2 Base Board Jumper Switch Configurations The ML610Q112 is a high performance 8bit CMOS microcontroller that incorporates a variety of peripheral circuits such as timers PWM UART I C bus interface master slave synchronous serial port voltage level supervisor analog comparators and 10 bit successive approximation type A D converter around an 8bit nX U8 100 CPU The nX U8 100 is capable of efficient instruction execution at 1 instruction per clock cycle via parallel processing and a pipeline architecture The Flash ROM installed as program memory and on chip debugging function enable program debugging and programming on the customer s board Q112 MICROCONTROLLER REG OUT a g E _ BOET TuF gal a a Z PAD MCU_ADCO Q112 RST Y PAL T MCU ADC 12 Ts gt m PA LS MCU VBL DET 3 i MCU RO MCU_LEDO PCO ea ucu noo MCU_LEDI LSR pci PBZ o Meu GEO MCU LED LT C PES r TU
7. GPON MCU LEDS 5 PCa rs MOU GPO MCU LEDA F Pica 19 MCU A vrh Ze Sanr Y LAZ Ca SS MCU_LED6 s Pcs 3 MCU cron MCU LEDT T gt PCT ML6100112 31 sri l ay m PDO ar MICU_ Sens a e20 PDI Hap MCU Sensor Figure 7 Base Board Q112 MCU Schematic The Base Board is powered by the VBUS pin in the USB connector or an external power source connected via Header J3 Switch J1 is used to select the power source Sensor Evaluation Kit User Manual Rev1 0 m REG_LOWT Ci urd Kx Colin Cell dcas not peed to be On Board We would like to have the positive and GND leads on a 2 N position header s gt 2 Position Switch Case l Middle pin OPEN P oaen Mas Header Edema Pompe Case 2 Middle pin con to VRUG ss Standard Pitch 2 54ma 2pin Case 3 Middle pin con to Ext Power Figure 8 Base Board Power Supply Schematic The debugging functionality of ML610Q112 is extremely useful You will be able to single step through your code to quickly find problems and solutions as well as set breakpoints and create and save watch lists of variables to helo you better understand what is going on inside your code To manually reset the micro using Button S1 move J2 to the USR_RST position RESET MCUs MICROCONTROLLER DEBUGGER Aanckade ilar p aa 4 HN Reset Option A ae ban 2 TST AO wang Pushin i gt gt This should be a standard pitch 252 pin male header This is a depreceated version of the debugger programmer port Heed to bui
8. HM sales representative before purchasing If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law you will be required to obtain a license or permit under the Law RO H IL ROHM Customer Support System SEMICONDUCTOR Thank you for accessing ROHM s product information For more product information and catalogs please contact us at http www rohm com contact 25
9. The U8Dev Suite includes 18 manuals to helo you become familiarized with LAPIS Semiconductor s micros development tools nanoEASE debugger and more Follow the instructions in ReleaseNote_e odf when installing the tools The tools provided with this kit may not be the most up to date Go to https www lapis semi com customer lomcu login html to register and download the latest version of the tools Step 2 Download the source code from https github com ROHMUSDC ROHMSensorPlatformEVK The default software is stored in directory Q112 Firmware Sensor Platform EVK _output _hex Q112 SENSORPLATFORMEVK HEX Step 3 Connect the nanoEASE to the board as indicated in the figure below Change the Reset Selection Header J2 to the nE RST position connect Pin 2 and 3 a w Le Q w ale w Q C w Lid 2 Q Cc Base Board Debug Header J4 Figure 38 nanoEASE Base Board Connection Diagram Figure 39 nanoEASE Base Board Connection Step 4 Start the DTU8 Debugger by selecting Start All Programs U8 Tools nX U8 DTU8 Debugger Step 5 In the Target Settings window select ML610112 in the Target chip field and nanoEASE in the Target ICE field 23 Sensor Evaluation Kit User Manual Rev1 0 Figure 40 DTU8 Debugger Settings Step 6 Load the default software into the Base Board by clicking on the Load Program File button and selecting the default software file Figure 41 DTU8 Debugger
10. ader 1 WSOF5 F T F i 2 bE l 9 a ee So ee ee ee E e r m N C s i L bardi L Uag ha T EHET 4 Sarai om Sex RTE EMPTY E Seo IF t E RAD 8 EMPTY L Seneca aiii Pe Samal 130 1 20 _ S TLO P BE 1 e DBUJS9 10 1 ERT a B eo 7 0 So b T EMPTY TF YY CE Figure 20 BH1620FVC Breakout Board Schematic Install Do Not Install GC1 GC2 Illuminance Detection Range Shutdown R128 R130 R129 R131 0 of o H Gain defaut R129 R130 R128 R131 O 1 1 000 M Gain R128 R131 R129 R130 1 O 10 000 Table 3 BH1620FVC Breakout Board Gain Mode Configuration Based on the Gain Mode read from Pins GPIOO and GPIO1 in Header 1 and the 10bit ADC value converted at the ADCO pin of Sensor Interface Header 2 the illuminance at the ALS surface EV is calculated using the following equations e H Gain Mode ______ 1x Ey 0 57x10 XR z Nx Where V is the voltage at the output pin of BH1620FVC H 5 6kO e M Gain Mode _____ _ 1x 5 0 057x10 xR 1x e Lain Mode _______ _ _ 1x Sy 0 0057x10 xR 1x The feedback LEDs display the 8bit ADC value scaled from the 10bit ADC at the output pin of BH1620FVC via 2bit right shift Figure 21 BH1620FVC Breakout Board Sample Output 13 Sensor Evaluation Kit User Manual Rev1 0 3 2 2 BH1721FVC Breakout Board The BH1721FVC Breakout Board provides a simple environment to qu
11. ble ML8511 U59 Table 4 ML8511 Breakout Board Jumper Positions The UV intensity of UV sensor surface UVI is calculated as follows V 2 2 0 129 UVI 10 mW cm Where V is the voltage at the output pin of ML8511 The feedback LEDs display the 8bit ADC value scaled down from the 10bit ADC at the output pin of ML8511 via 2bit right shift Figure 29 ML8511 Breakout Board Sample Output ay Sensor Evaluation Kit User Manual Rev1 0 3 4 MEMS Sensor Breakout Board 3 4 1 KMX61 Breakout Board The KMX61 Breakout Board provides a simple environment to quickly evaluate the performance of the KMX61 sensor The KMxX61 is a 6 axis e compass device with auto calibration software It delivers high sensitivity 0 05 uT count with stability over temperature 0 05 C and is well suited for a range of smartphone tablet and health amp fitness applications iL S Et E it M NEN The block diagram and schematic of the KMX61 Breakout Board are shown in Figures 31 and 32 respectively Resistors R209 to R214 are used to set the Sensor Control value for the board The zC I F pins Pins 4 and 6 and interrupt pins pins 9 and 11 are connected to the Base Board via the SDA and SCL pins in Sensor Interface Header 2 and GPIOO and GPIO1 pins of Sensor Interface Header 1 respectively Figure 31 KMX61 Breakout Board Block Diagram 18 Sensor Evaluation Kit User Manual Rev1 0 ad T
12. feedback LEDs indicate the tilt position of the KX022 surface e If the tilt position is Face Up LED 3 will be turned on e If the tilt position is Face Down LED 4 will be turned on e If the tilt position is Left LED 7 will be turned on e If the tilt position is Right LED O will be turned on e If the tilt position is Up LED 5 will be turned on e If the tilt position is Down LED 2 will be turned on Figure 33 KMX61 Breakout Board Sample Output 20 Sensor Evaluation Kit User Manual Rev1 0 3 5 Temperature Sensor Breakout Board 3 5 1 BDE0600G Breakout Board The BDEO600G Breakout Board provides a simple environment to quickly evaluate the performance of the BDEO600G sensor The BDEO6O0O0G is a low quiescent current T DUA high accuracy thermostat temperature switch IC that integrates a temperature sensor reference voltage regulator D A converter and comparator The OS terminal state is changed logically when detecting temperature independently Open Drain Output Active L is enabled as well F E k 49A S Josuag dwa 1 a lt a B il Cf 1 1 i H AR Figure 34 BDEO600G Breakout Board Top View and Bottom Views The block diagram and schematic of the BDEO600G Breakout Board are shown in Figures 35 and 36 respectively Resistors R233 to R238 are used to set the Sensor Control value for the board The output pin VITEMP Pin 3 and digital thermostat output pin OS Pin 5 of the BD
13. ickly evaluate the performance of the BH1721FVC sensor The BH1721FVC is a digital Ambient Light Sensor IC fwith 12C bus I F optimized for obtaining ambient light data for adjusting LCD and keypad backlighting in mobile phones It also features a wide detection range 1 65528 Ix Figure 22 BH1721FVC Breakout Board Top View and Bottom Views The block diagram and schematic of the BH1721FVC Breakout Board are shown in Figures 23 and 24 respectively Resistors R185 to R190 are used to set the Sensor Control value for the board The I2C interface pins Pins 3 and 5 are connected to the Base Board via the SDA and SCL pins of Sensor Interface Header 2 Figure 23 BH1721FVC Breakout Board Block Diagram 14 Sensor Evaluation Kit User Manual Rev1 0 fei ie E R A WENN eiea el deal m s i Figure 24 BH1721FVC Breakout Board Schematic The illuminance of the ALS surface EV is calculated as follows Raw Data Accuracy Where Raw Data refers to the 16bit serial output of the ALS Accuracy denotes measurement accuracy Typ 1 2 times The feedback LEDs display 16bit serial output of the ALS peee prey 98 COML PuT a er ee a ee EEE EEE Ee er en ee nr ae ee a er er ae a ee ee ee ee ee ee ee ee ee ee oe a E ad i oe ee ee os p het LL j E A H r C a W W O W W W WW W W W W W WW W O a WW W WW W W WW W W O W W W WW W W W r WW WW W Figure 25 BH1721FVC Breakout Board Sam
14. ld an interface cable to use our original cable Figure 9 Base Board Reset and Debugger Schematic The Sensor Interface Headers Sensor Breakout Board Interface gt gt All headers are female types Figure 10 Base Board Sensor Interface Schematic Sensor Evaluation Kit User Manual Rev1 0 The feedback LEDs Standalone Mode LED Feedback Section gt s Deing ROHN Red PicoLEDa Figure 11 Base Board Feedback LED Schematic The UART to USB Block USB to serial UART interface FT230X5 R RST gt Active Low Figure 12 Base Board USB to UART Schematic Sensor Evaluation Kit User Manual Rev1 0 2 2 Software The source code of the Base Board software can be downloaded from https github com ROHMUSDC ROHMSensorPlatformEVK The flow diagram of the Base Board software is shown in Figure 13 The Sensor Control value is the input data from the PD port of ML610Q112 This value is used to detect the type of Breakout Board connected to the Base Board refer to Table 1 Configure MCU amp Interfaces UARTO I2C ADC GPIO Read Sensor Control value Sensor connected Sensor initialized Initialize sensor Read sensor data amp convert to read data Send data via UART amp set Feedback LEDS Set MCU to HALT mode End Figure 13 Base Board Software Flow Diagram Sensor Evaluation Kit User Manual Rev1 0 3 Breakout Boa
15. ple Output 15 Sensor Evaluation Kit User Manual Rev1 0 3 3 UV Sensor Breakout Board 3 3 1 ML8511 Breakout Board The ML8511 Breakout Board provides a simple environment to quickly evaluate performance of the ML8511 sensor The ML8511 is a UV sensor capable of detecting the UV intensity both indoors and outdoors An integrated amplifier converts photocurrent to voltage based on UV intensity making it easy to connect external circuits such as an ADC And in power down mode the standby current is typically only 0 1UA prolonging EET R197 SN 1P lt Ll CE a ax 306 11 a L Sk28 UY The block diagramand schematic of the ML8511 Breakout Board are shown in Figures 27 and 28 respectively Resistors R197 to R202 are used to set the Sensor Control value for the board Pin 9 OUT of the ML8511 is connected to the Base Board via Pin 3 ADCO of Sensor Interface Header 2 Header J7 used to enable disable ML8511 Figure 27 ML8511 Breakout Board Block Diagram 16 Sensor Evaluation Kit User Manual Rev1 0 VDD LN GPIOg GPIOT X Z i GPIOZ d on s an wt Mra lZ GPIO3 E Re S w cot TP HE2 E Senso imetaceHeader 1 40 R R Cer i S ZNC TRN Mes TOFN12 SensCtrit prl aral TL armel Tn 2 aral T Sens Liis Sensor Control 10 DPDgh 11 0 SensorinietiaceHeader 3 Figure 28 ML8511 Breakout Board Schematic Designator Position Description J7 Enable ML8511 U59 Disa
16. rd Overview 3 1 Hall Sensor Breakout Board 3 1 1 BU52011HFV Breakout Board The BU52011HFV Breakout Board provides a simple environment to quickly evaluate the performance of the BU5201 1HFV sensor The BU52011HFV features magnetic switches that can operate both the S and N poles upon which the output goes from High to Low Ui Tii pe L Hall Senser 1 a Nie Figure 14 BU52011HFV Breakout Board Top and Bottom Views F The block diagram and schematic of the BU52011HFV Breakout Board are shown in Figures 15 and 16 respectively Resistors R161 to R166 are used to set the Sensor Control value for the board Pin 5 OUT1 of the BU52011HFV is connected to the Base Board via Pin 1 GPIOO of Sensor Interface Header 1 99990 Figure 15 BU52011HFV Breakout Board Block Diagram 10 Sensor Evaluation Kit User Manual Rev1 0 VOD ALZ 2 W113 SensorintefaceHeader_2 BUES HYSOFS SensorlntertaceHeader K VD D HL 2 Wa Oo EMPTY a re senscCind SensCtr 7 TT T sens linz SensCtris Sensctri4 SensctrisS EMPTY Sensor Control 2 Dh SaniscointetaceHaader 3 Figure 16 BU52011HFV Breakout Board Schematic When the BU52011HFV Breakout Board is connected to the running Base Board e f no magnetic field is present all LEDs will be turned off and the output text sent to the PC via UART will read Hall No Mag Fields Detected e fa magnetic is present LED O
17. rdi sisiencccviesensevcensniwsadeceishiclatas EEEE E 21 Appendix A Programming the Base Board INStructions sss cece eee 23 Sensor Evaluation Kit User Manual Rev1 0 1 General Information and Introduction 1 1 Introduction The Sensor Evaluation Kit is designed to test the functional operation of various sensor types It includes one Base Board and several Breakout Boards The Base Board is controller board with a LAPIS MCU The Breakout board is sensor boards containing different types of sensor ICs This guide will helo you understand how to connect Breakout Boards to the Base Board It will also show how the Base Board obtains data from sensors and converts and displays the results on a computer screen Figure 1 Sensor Evaluation Kit 1 2 Quick Start Guide Step 1 Check to make sure the latest drivers are installed on your computer for communicating with the Base Board LAPIS MCU via USB If not please go to http www ftdichip com Support Documents InstallGuides htm to access the driver files Step 2 Verify that the jumper settings are set as follows e Power Selection Switch J1 is in the VBUS position position 3 e Reset Selection Header J2 is in the USR_RST position connect pins 1 and 2 Step 3 Plug the Sensor Breakout Board into the Base Board Step 4 Connect the Base Board Breakout Board to the computer via USB cable Step 5 Run the Serial Terminal tool PuT Ty configure PuT Ty to run in Serial mode with a
18. s document are intended to be used with general use electronic equipment or devices such as audio visual equipment office automation equipment communication devices electronic appliances and amusement devices The Products specified in this document are not designed to be radiation tolerant While ROHM always makes efforts to enhance the quality and reliability of its Products a Product may fail or malfunction for a variety of reasons Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury fire or any other damage caused in the event of the failure of any Product such as derating redundancy fire control and fail safe designs ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual The Products are not designed or manufactured to be used with any equipment device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury Such as a medical instrument transportation equipment aerospace machinery nuclear reactor controller fuel controller or other safety device ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes If a Product is intended to be used for any such special purpose please contact a RO
19. will be turned on and the output text will be Hall Mag Field Detected EP COMI PuTTY amp ee eee ee ee ee ee Figure 17 BU52011HFV Breakout Board Sample Output 11 Sensor Evaluation Kit User Manual Rev1 0 3 2 Ambient Light Sensor Breakout Boards 3 2 1 BH1620FVC Breakout Board The BH1620FVC Breakout Board provides a simple environment to quickly evaluate the performance of the BH1620FVC sensor The BH1620FVC is an analog current output ambient light sensor ideal for obtaining ambient light data for adjusting the LCD and keypad backlight in mobile phones to save power and improve visibility ee ee ee ee R LTS ms Ri HR b n 2 Light Senser J 3 i j Figure 18 BH1620FVC Breakout Board Top View and Bottom Views The block diagram and schematic of the BU1620FVC Breakout Board are shown in Figures 19 and 20 respectively Resistors R167 to R172 are used to set the Sensor Control value for the board The Gain Mode can be set by Pin 3 ADCO of Sensor resistors R128 and R131 as listed in Table 3 Pin 5 IOUT of the BH1620FVC is connected to the Base Board via Pin 3 ADCO of Sensor Interface Header 2 The Base Board detects the Gain Mode configuration by reading the GPIOO and GPIO1 pins of Sensor Interface Header 1 Figure 19 BH1620FVC Breakout Board Block Diagram 12 Sensor Evaluation Kit User Manual Rev1 0 WOD_AL 1 GPO Pio GPO GPa VOD wT ET a Sernoinenacete
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