Ambient light sensor demonstration board
Contents
1. s terms and conditions of sale Purchasers are solely responsible for the choice selection and use of the ST products and services described herein and ST assumes no liability whatsoever relating to the choice selection or use of the ST products and services described herein No license express or implied by estoppel or otherwise to any intellectual property rights is granted under this document If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein UNLESS OTHERWISE SET FORTH IN ST S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZE REPRESENTATIVE OF ST ST PRODUCTS ARE NOT DESIGNED AUTHORIZED OR WARRANTED FOR USE IN MILITARY AIR CRAFT SPACE LIFE SAVING OR LIFE SUSTAINING APPLICATIONS NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PE2. wy UM0214 Y User manual Ambient light sensor demonstration board Introduction This user manual along with the VM6101 datasheet will enable you to evaluate the VM6101 Kit contents e 1x VM6101 demonstration board e Parallel port cable Order codes Part number Description STV 6101 R01 Demonstration board Figure 1 Demonstration board June 2006 Rev 1 1 9 www st com UM0214 Hardware 1 Hardware 1 1 Demonstration board Figure 2 Demonstration board schematic SH E oelectronics 2 9 UM0214 Hardware 1 2 Bill of materials Table 1 Demonstration board BOM Reference Description Manufacturer Part number U1 Ambient light sensor STMicroelectronics VM6101V008 D1 Red Led surface mount Standard component many suppliers C1 1uF Ceramic Capacitor Standard component many suppliers R1 R2 4K7 2C pullup resistors Standard component many suppliers R5 1K5 Resistor Standard component many suppliers R3 R4 Not fitted device address selection Standard component many suppliers pullup down resistors 3 9 Software UM0214 2 2 1 4 9 Software Installation 1 Check that the user logged on has Administrator rights for the PC Laptop that is being used This can be verified by checking the User Accounts Start Settings Control P
3. on start the Y bars shows each of the pixel s activity Exit This button closes down the application About This button shows the version information Output type The user can select either Threshold or PWM Pulse Width Modulation The default is Threshold and therefore the threshold options are shown in the group below see Figure 5 When PWM is selected this group changes to the PWM options See Figure 6 6 9 UM0214 Software Note Figure 6 PWM option m Output Type Threshold pm PWM p PWM Sensivity 3 1 Frequency 48 8 Hz Output Active High IV Active Low Threshold The Threshold options include upper and lower threshold setting with Greater Than Less Than tick boxes for these thresholds and Active High Low Output The default is for the Upper Threshold to be set to 19 531 W m2 with the Less Than box ticked as shown in Figure 5 the output is set to Active High In this mode the LED on the demo board should be on in normal office lighting conditions When the user hits the START button the LED output will be mimicked by the Threshold Indication box which will turn yellow when the LED is on If the threshold is crossed the LED on the demo board turns off If the output is changed to Active Low the LED and threshold indication box the output is inverted i e the LED will turn on if the threshold is crossed The user can set the thresholds by hi
4. RSONAL INJURY DEATH OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE Resale of ST products with provisions different from the statements and or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever any liability of ST ST and the ST logo are trademarks or registered trademarks of ST in various countries Information in this document supersedes and replaces all information previously supplied The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners 2006 STMicroelectronics All rights reserved STMicroelectronics group of companies Australia Belgium Brazil Canada China Czech Republic Finland France Germany Hong Kong India Israel Italy Japan Malaysia Malta Morocco Singapore Spain Sweden Switzerland United Kingdom United States of America www st com STA 9 9
5. anel User Accounts If administrator rights are not enabled please see local network administrator to enable them as they must be enabled for software to operate corrrectly Check that the PC Laptop has the parallel port configured as ECP This can be verified using Device Manager Start Settings Control Panel System Hardware Device Manager Figure 3 Parallel port setting in device manager Action view je amle E Computer EY Ports COM amp LPT F Communications Port COM1 aF ECP Printer Port LPT1 i Sound video and game controllers System devices If the Parallel Port is not set up as ECP then you will need to change it in the BIOS settings PC LAPTOP CONFIGURATION a Power on the PC Laptop and enter the BIOS setup b Go into the Integrated Devices menu gt Parallel Port c The parallel port settings should be changed to Parallel Port Enabled Mode ECP Base I O Address 378H Interrupt IRQ7 DMA DMA Off d Save and Exit Install the v2wreg driver by double clicking on the InstV2W exe icon and follow the commands given by the installation wizard Copy across the VM6101_ DEMO _release_v exe and the VM6101_ACQ exe applications to a suitable location for example C VM6101 ky UM0214 Software 2 2 Connection 1 Connect VM6101 demo board to the parallel port via the cable supplied 2 Open VM6101_Demo application by
6. double clicking on it 3 Ifan initial connection error occurs and the software cannot connect to the hardware the following error message is displayed Figure 4 Connection error ST Ambient Light Detector X Connection Error Click Retry to reconnect or Cancel to exit the demo If this error is seen make sure the cable is properly connected to the demo board and parallel port Hit retry to try to connect again If this error message continually occurs there could be a problem with the BIOS settings so these should be checked then the above steps followed again If the error still occurs a hardware change is needed 4 Once a connection is established the following screen should be displayed a To install the software required you will need Administrator rights on the PC b The latest version should always be used For example VM6101_DEMO_release_v2 3 exe 5 9 Software UM0214 Figure 5 VM6101 demo app dialog ST STMicroelectronics Ambient Light Sensor m Output Type Threshold fy PWM p Threshold Upper Set 13531 Wim2 lt M gt 7 Lower set O Wmr or Threshold Output Active High IV Crossed Active Low ky M6101 Colour Ambient Light Sensor Max Upper Min Exit About wma 0187 0 099 0 039 0 034 Y 2 3 Demo application options Start stop This button starts stops the demo
7. tting the SET button beside the relevant threshold This will set the threshold to the current light level experienced by the sensor when the button is hit The Thresholds can only be set when the demo app is running The thresholds are activated using the tick boxes that is the threshold is only activated when the lt or gt for that threshold is ticked The user can deactivate a threshold by deselecting the ticks PWM When the Output Type is changed to PWM the Sensitivity and Frequency options are displayed as shown in Figure 6 The Sensitivity and Frequency can be changed by using the slider and drop down menu Units The units displayed in the Y Bar outputs can be changed by using the drop down menu beside the About button This will change the units that are displayed in the box under the pixel s light bar and also change the displayed value of any thresholds that are set 7 9 Revision history UM0214 3 8 9 Revision history Table 2 Document revision history Date Revision Changes 5 Jun 2006 1 Initial release UM0214 Please Read Carefully Information in this document is provided solely in connection with ST products STMicroelectronics NV and its subsidiaries ST reserve the right to make changes corrections modifications or improvements to this document and the products and services described herein at any time without notice All ST products are sold pursuant to ST
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