LED Matrix display

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  1. - 4th October 2013, 12:13 #9
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    Art
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    Default Re: LED Matrix display

    Again, I can't test, but if you can't prevent a pin sinking current then this should not be possible:

    Something I googled looking for "Charlieplexing".
    If you didn't need the decimal point, looks like it could happen on an 8 bit port,
    unless it's a feature specific to the chip driving this display.
    ... but if all pins wer sinking current this display wouldn't work.
    Last edited by Art; - 4th October 2013 at 12:16.
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