Leds Multiplexing ...

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  1. - 24th January 2007, 13:45 #1
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    Acetronics2
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    Post Leds Multiplexing ...

    An interesting idea ...

    http://pdfserv.maxim-ic.com/en/an/AN1880.pdf

    Alain
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  2. - 25th January 2007, 09:16 #2
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    Charlieplexing... Gawd I hate that term!

    PBP Example provided here almost a year ago...

    http://www.picbasic.co.uk/forum/showthread.php?t=3510

    Doesn't matter what you find on the internet, we probably did it here on this forum first... Heart Transplants, DNA resequencing, cloning, USB Coffee Warmer (I kid you not, that's one of my hair-brained ideas that actually went to market)...
  3. - 25th January 2007, 09:38 #3
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    Talking just for joking

    Hi, Mel

    A further reading could have shown they drive 12 leds ... with the 10F pics

    http://www.edn.com/article/CA6399101...7&text=12+leds

    Challenge open !!!

    Have a happy new year.

    Alain

    PS: of course, the same can be done with PbP !!!
    Last edited by Acetronics2; - 25th January 2007 at 10:28.
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    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
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  4. - 25th January 2007, 17:54 #4
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    Here's a 256 Led ,8 I/O pic driven application you can buy for $6.50 at http://www.allelectronics.com/ . The Leds are actually tied together in parallel and in a matrix.I just put together a star shaped xmas display for next season using 5 strings tied to a single 16F628A thru driver ic's.
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    Last edited by ScaleRobotics; - 17th July 2010 at 23:32. Reason: corrected link
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