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Infrared voting system?

Discussion in 'Electronic Repair' started by Steve, Apr 4, 2005.

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  1. Steve

    Steve Guest

    I'm putting together a talent show and would like audience members to
    vote for performers using keypads. I think I need a bunch of infrared
    transmitters/keypads, a receiver, a computer, and some software. Does
    anyone have an idea where I can get the keypads and put together such a
    system inexpensively? Thanks for any info.
     
  2. NSM

    NSM Guest

    IR will suck. Use RF.
     
  3. Bill Jeffrey

    Bill Jeffrey Guest

    Either RF or IR is likely to be a problem if 10 or 50 people all push
    the "vote" button at the same time. There are ways to enable this, but
    they are likely to be complex and costly.

    Bill
    -------------------
     
  4. NSM

    NSM Guest

    That's a different problem, but who wants to hear the whining if the IR
    signal doesn't register?
     
  5. CJT

    CJT Guest

    http://www.cinematrix.com/
     
  6. NSM

    NSM Guest

    There you go. That should do it. Engineering a new solution will be very
    expensive.
     
  7. Asimov

    Asimov Guest

    "NSM" bravely wrote to "All" (05 Apr 05 01:20:53)
    --- on the heady topic of "Re: Infrared voting system?"

    NS> From: "NSM" <>
    NS> Xref: aeinews sci.electronics.repair:44963


    NS> IR will suck. Use RF.

    Thinking about a bunch of RF transmitters all heterodyning in the same
    room, shades of Theremin!

    A*s*i*m*o*v

    .... Isn't Fourier and it's applications a bitch!
     
  8. NSM

    NSM Guest

    room, shades of Theremin!

    Think about dealing with line of sight issues.
     
  9. CJT

    CJT Guest

    It's been tried and works great.
     
  10. Steve

    Steve Guest

    Yes, this product has already been developed and works well for
    instance at:
    estruction.com and educue.com. I would prefer to develop my own system
    to keep the cost down. Heterodyning! That sounds good. Do you think
    the transmitters and receivers on this website would do it for
    me?http://www.automicro.com.tw
    Which ones should I order as samples? Thanks again for any info.
     
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