Hi Aqua,
Sorry, bad labels. I didn't mean you'd get an output while both inputs were on. I was just labelling them as three different outputs that could be "ON".

I don't think the logic based system would work directly with a column/row setup.

You could use the +5v output to switch small relays each of which was across a different column/row combination, but that's making it a lot more complicated.

Cheers,

Andy

Last edited by AndyB; 08/19/15 07:20 PM.

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