User Manual - Digi-Key
Contents
1. board to the USB adapter first as USB box detects the QSlide board on power up gt Board will not Calibrate due to noise failure to calibrate will cause the board to cease communications See below Noisy or erratic signal Noisy Power Supply try a different USB port or PC Cables or Board too Close to Strong Noise Source such as a power line or switching noise source gt Increase the distance from E401 to the noise source Place a grounded metal shield between the noise source and the QSlide board QSlide Board is not Mechanically Stable Prevent board from moving around gt Strong RFI from a Transmitter or Adjacent Digital Product Remove the noise source or shield against it E401 QSlide patented ORG Ltd pej e 5 aim 0 675085 8 10 11 11 3 Aldi 518 QUANTUM www gprox com Development Team Martin Simmons Luben Hristov Samuel Brunet Corporate Headguarters North America 1 Mitchell Point 651 Holiday Drive Bldg 5 300 Ensign Way Hamble Pittsburgh PA 15220 Southampton SO31 4RF USA United Kingdom Tel 412 391 7367 Tel 44 0 23 8056 5600 Fax 412 291 1015 Fax 44 0 23 8045 3939 Copyright 2004 QRG Ltd All rights reserved Email 521651 Patented and patents pending REV 102 0709042. THE NEW VISION OF TOUCH QUANTUM 8 1 E401 User Manual The New Vision of Touch E401 User Manual OVERVIEW This kit is designed for evaluation and development of QT401 based QSlide slider controls It includes a fully assembled slider PCB demo control panel cables and software The E401 has serial interface allowing connection to a PC for control and data viewing via an included USB to SPI adapter and PC software For more detailed information about this product please refer to the QT401 datasheet Materials Provided 1 x White plastic slider demo panel 1 x E401 evaluation board with self adhesive on one side 6 x Rubber feet 1 x USB PC cable 1 x USB SPI adapter with USB SPI cable to the E401 1 x Spare SPI cable for user connection to a microcontroller 2 x Sample GT401 IS ICs 1 x CD ROM with QSlide software and USB drivers 1 x User Guide CONTENTS BOARD PREPARATION RUNNING THE E401 QSLIDE SOFTWARE OPERATION BOARD DETAILS SCHEMATIC DIAGRAM PCB LAYOUT SOFTWARE INSTALLATION CD SOFTWARE INSTALLATION WEB REAL WORLD APPLICATION TROUBLESHOOTER Page 2 Page 3 Page 4 Page 6 Page 8 Page 9 Page 10 Page 11 Page 12 Inside Back Cover 2 BOARD PREPARATION The E401 PCB can be adhered to plastic glass or any other dielectric panel A white sample panel is included Please follow these steps to mount the E401 PCB
3. Cg XI Status zl Prox Detection x Slider Detection Q Signal Error 5 Drift Rate sec Reference level Setup Output Ratio Fixed Cal __FivedCal__ 0 Command Return Com Port SET 4 QUANTUM SEARGH GROUP The New Vision of Touch Patented amp Patents Pending Off Line Version 10 23 July 20 4 Prox Detection indicates that the board has detected a hand at a distance The Prox value sets the threshold which will cause the chip to register proximity lower numbers are more sensitive Default 3 I In pg QSlide 222 Lg Calibration should be performed with the PCB in the intended position in which it will be used with hands at a distance to get a valid reference level Once positioned the board should be calibrated using the Fixed Cal button Note Fixed Cal must precede Adap tive Cal otherwise the end calibrations will be inaccurate Clicking Fixed Cal alone will cancel Adaptive Cal If the board is moved it may need to be recalibrated If any status flags are set prior to operation then calibration should be repeated Protection 25 m lider Detection Signal Error 5 xl Rate sec Reference level Setup Output FE d FisedCal 88 Adaptive Cal Command 0 07 GUANTU RESEARCH GRAUP The New Vision of Tou 4h
4. M Patented amp Patents Pending 107 38400 8 1 E401OSlide Version ho 23 July 20 7 Clicking Adaptive Cal causes the E401 to match the electrical end points to the physical ends using a special calibration process Do this only after clicking Fixed Cal Slider Bar shows the reported position of touch This bar does not move when only proximity is detected It will lock on the last reported position after touch is lifted Slider Detection indicates that the board is detecting a finger touch Changing the associated threshold sets the amount of signal change which will cause the E401 to register touch Default 25 Signal Error indicates that the signal has the wrong polarity usually due to board movement Clicking the Fixed Cal then Adaptive Cal buttons will resolve the error Drift Rate sets the adaptive drift compensation rate the numbers represent seconds per compensation Output Ratio shows the numerical slider position from 0 left to 127 right Command Return represents the QT401 s response status byte in hexadecimal This is useful for diagnostic purposes 5 BOARD DETAILS SPI Interface Connector This connector provides all signals and power needed to communicate with the USB adapter or an external host such as a microcontroller See Table 1 next page for a description of the connec
5. inside qrg usb_driver zip within folder C QRG USB Now download QSlide software Oslide_V x exe but save this to your Windows Desktop Install the USB Drivers Follow the USB directions on page 10 except Please choose your search and installation options 85 When the Found New Hardware Wizard ar a NEA ees appears select Install from a list or specific ps Sas bud er sre bieu bd location Then specify the location as Search removable media floppy CD ROM C QRG USB and click Next j Windows will now install the drivers Click Finish when prompted The Found New Hardware Wizard will appear again for the USB Serial Port device Simply repeat the above steps again Include this location in the search You may be prompted to restart your PC restarting is not necessary You may now delete the Chers usb temporary folder C QRG USB You are now done with the software and driver installation Go back to page 3 12 REAL WORLD APPLICATION QSlide Concept Cooktop This concept cooktop was modified from a commercially available unit to demonstrate several advanced Quantum touch control features A central feature is the QSlide control used to dial in the power level from 0 to 99 The single Slider is shared among the four burners by means of 4 burner select buttons and 4 LED power displays Touching one of these 4 burner buttons enables the slide
6. Detect active high output 10 Prox active high output CON1 Pin 1 This Side QT401 IC Slider Element SCHEMATIC DIAGRAM CON1 Figure 2 Schematic U2 U2 FOOTPRINT Di 7533 1 VDD 42 iagram 3v3 E 2 R25 C4 10k 2 2uF 16V 2 2uF 16V 1 2 3 d Gnd Vin Vout 3 VDD U1 4 1 01401 15 2 18 17x5k6 SLIDER PCB LAYOUT 9 Figure 3 Silk Layer E401 QSlide patented Ltd 4 eU eU o o 2 con 7883 86 5 PART NO E401 ISS 1121315151617 LES Table 2 Operating Range Temperature 20 C to 60 C Supply Voltage 4 75 15VDC 10 SOFTWARE INSTALLATION CD If you have a Quantum CD ROM follow these steps to install QSlide software and USB drivers If you previously installed such drivers do not install them again If you experience problems make sure you have administrative rights e g under XP Pro Install the QSlide Signal Viewing Software To install the QSlide viewing software simply copy the file Oslide_V xJ exe from the supplied CD to your Windows Desktop The software can be found on the CD in folder D SOFTWARE replace D with the actual drive letter of your CD Install the USB Drivers Place the CD ROM in your CD drive Connect the USB adapter box to the PC using the supplied USB cable The E401 may be connected or not Found New Hardware Wizard Welcome
7. r to control the power level on that burner The 2 digit LED for that burner tracks the power level setting Another advanced feature is a unique slide on touch control switch that is child resistant yet easy for an adult to use It operates much like a conventional slide switch sliding your finger up turns on the appliance Turning the appliance off is easy just touch anywhere in the power button area This cooktop uses both QTouch and QSlide technologies QTouch and QSlide technology are patented and patent pending worldwide The power button features a unique patent pending slide on touch method that helps prevent accidental operation The slider control is shared among the four burners Touch one of the four burner touch buttons and the LEDs for that burner become brighter The slider will then work to change power level for that burner TROUBLESHOOTER Board Will Not Communicate with PC Noisy or Erratic Signal Bad SPI or USB Connections Check replace cables sure the board is getting power and USB light is on solid gt Bad or Conflicting Virtual Comm Port on PC c See the Software Installation section reinstall driver software or change the USB Serial com port number in Device Manager if there is a conflict LED Flashes on USB Adapter USB box not recognized Disconnect and reconnect the board and USB adapter take care to connect the QSlide
8. seconds the ADAPTIVE CAL button 7 Slowly move your hand towards the slider The proximity alert status box will indicate when your hand is still several cm away from the panel 8 Touch the slider area with a finger You can either slide your finger across the surface or touch the slider at any point When you remove your finger the last position touched will be locked on the display Things to Try Alter the proximity and detect thresholds using the pull down menus to change the sensitivity to proximity and touch The higher the threshold the less sensitive the E401 will become Change the rate of environmental drift compensation with the DRIFT RATE dropdown This affects how fast the sensor will compensate for slow environmental changes Normally this should be set to a very slow rate once per 3 or 4 seconds Faster rates can cause complications with proximity and touch detection 4 QSLIDE SOFTWARE OPERATION Warning Disconnecting the USB cable from the PC while QSlide software is communicating with the E401 board may crash the software Please close the QSlide software before unplugging the USB cable QSlide software should automatically detect the correct com port if not you may need to select the port manually as shown below If the correct port usually a com port higher than 3 does not appear close the program wait 30 seconds and try again Windows may be slow to recognize the USB hardware QSlide LL
9. to the Found New Hardware Wizard This wizard helps you install software for USB lt gt Serial Cable Windows will display the Found New Hardware Wizard for the USB lt gt Serial Cable Select Install the software automatically and click Next Windows now installs the drivers Click Finish when prompted lt gt or floppy disk insert it now your hardware came with an installation CD What do you want the wizard to do Install the software automatically Recommended Install from a list or specific location Advanced The Found New Hardware Wizard will appear again for the USB Serial Port device Simply repeat the above steps again Click Next to continue lt Back Windows may prompt you to restart your PC at this point restarting is not necessary You are now done with the software and driver installation Go back to page 3 SOFTWARE INSTALLATION WEB 11 Follow these steps to install QSlide software and USB drivers from www gprox com If you previously installed such drivers do not install them again f you experience problems make sure you have administrative rights e g under XP Pro Create New Folder C QRG USB Create a new temporary folder to hold the files you are about to download called C QRG USB Download and Extract the Files Go to www gprox com software and click on the file grg usb_drivers zip and click Save save the file to C QRG USB Extract all files
10. to the sample panel 1 Use normal ESD precautions when working with the E401 2 _ Place the user panel face down on a table Tape down the edges of the panel to the table so it cannot move while you work with it 3 Remove the paper backing from the E401 PCB and adhere it to the rear of the user panel Bend the PCB slightly as shown while smoothing it to remove any air bubbles Tip Line up the PCB with the alignment marks on the back of the slider panel The PCB must be positioned with the connector on the underside of the QSlide logo The PCB does allow some flexing but care must be taken not to bend it too far as this can crack the SMT components 4 Mount the 6 rubber feet as shown to make the E401 mechanically stable in use RUNNING THE E401 3 To Run the E401 Please Follow These Steps 1 IMPORTANT First install QSlide software and USB drivers see page 10 2 Make sure the USB adapter box is NOT plugged into your PC at this time 3 Connect the E401 to the USB box with the red USB SPI cable 4 Connect the USB adapter to your running PC and wait at least 10 seconds so that the USB adaptor is properly recognized The USB box s LED should come on solid 5 Run the QSlide software Qslide V x exe which should be on your desktop or other location where you copied it See next page for details 6 With your hands far removed from the E401 Click on the FIXED button first then after 1 or 2
11. tor pinout Voltage Regulator The E401 uses a low drop out regulator to regulate the 5V coming from the USB adapter box down to 3 3V Resistor R25 is used to provide a minimum load on the regulator when the QT401 goes to sleep between acquisitions this is necessary for regulator transient stability Since the QT401 works on a lower voltage 3 3V than the USB box 5 0V the signals from the USB box to the E401 must be level shifted down This is done using resistive dividers consisting of 1K resistors R20 R21 and R22 plus a set of 560 ohm resistors placed in series with the signal lines inside the USB box Slider Element The capacitive slider consists of the 17 resistors R2 R18 and the copper pads they connect The end to end resistance of the slider element is about 95K ohms Resistors R1 and R19 are zero ohms but can be changed to allow manual trimming of the end positions of the slider if adaptive calibration is not used Increasing R1 and or R19 will move the ends outwards Sampling Capacitors C1 and C2 are the Cs sampling capacitors increasing their value will increase sensitivity and resolution of measurement but will also tend to make for a slower response time Figure 1 Board Layout Table 1 Connector 1 Pin List 1 OV Ground 2 5V power 3 5V power 4 DRDY data ready output 5 SDO serial data output 6 SS slave select input 7 SCLK serial clock input 8 SDI serial data input 9
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