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Arduino RGB LED Controller

August 23rd, 2011 52 comments

When reorganizing our stock I found a whole bunch of diffused RGB LEDs (>100pcs) so I thought I would make something cool with them. Maybe some kind of individual controllable christmas light or some lights you could use for showcases etc.

RGB LEDs


So I decided once again to make a project using the Arduino Duemilanove, as it is so quick and easy to get a prototype working.
After some brainstorming, thinking about how I should do the PWM multiplexing, I designed a circuit capable of driving 8 individual RGB LEDs using 11 pins. The project would be easily expandable and would only cost 1 extra pin for each extra RGB LED.
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