Found this ultra nifty little link, for anyone dabbling in LED matrixes. Using charlieplexing, you should theoretically be able to drive 156 individual led's off your 13 pins. Im going to have a play soon. http://www.instructables.com/id/Charlieplexing-LEDs--The-theory/ I am toying with the idea …

Charlie plexing LED's

system January 8, 2008, 4:00am 3

Very cool and thanks!

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