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DLP4500: How to read device's serial ID while connecting 2 or more projectors

Raymond Tan1
Prodigy 85 points
Part Number: DLP4500
Other Parts Discussed in Thread: DLPC350

Dear TI experts,

         I am developing my own c++ program to control two or more projectors, and would like to know how to read the serial ID to distinguish two projectors. Thank you!

Best regards,

Raymond

  • 0
    TI__Mastermind 22840 points

    Hello Raymond,

    Welcome to DLP from  and thank you for your interest in DLP technology.

    Could you please be more specific about what you mean by two projectors? are these TI EVM if yes then which one? What interface you are using to communicate with these projectors?

    regards,

    Vivek

  • 0 in reply to Vivek Thakur
    Prodigy 20 points

    Hello Vivek:

             By two projectors, I mean two DLP4500 EVM and I am using USB to connect both. I have read a post about this and the guy said that two DLP4500 can be distinguished as LCR2 and LCR3, but I am not sure how exactly should I do. Thanks!

  • 0 in reply to DaoAI Robotics
    TI__Genius 10925 points

    Hi Raymond, 

    The LCR4500 GUI uses the HIDAPI libraries to communicate to DLPC350 via USB. This library is included in our LCR4500 GUI source. But, in the GUI we don't have the functionality to control two devices at the same time. 

    For doing this, you need to check how the windows 10 detects two DLPC350 under device manager, and then need to go through the HIDAPI documentation on how to address these entries separately. After doing this, you can refer to the LCR4500 Source easily to build up a way to control both the devices.

    Thanks & Regards,

    Hirak.