Charlie plexing LED's

Forum 2005-2010 (read only) Hardware Interfacing
1

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 of attaching my arduino to a fan, and running leds along the fins.

2

Our very own westfw has an instructable on this here: http://www.instructables.com/id/How-to-drive-a-lot-of-LEDs-from-a-few-microcontrol/

3

Very cool and thanks!