I threw together a little tree with 20 RGB LEDs connected in parallel to an Arduino with an Ethernet Shield. This is the code running on my arduino. This is mostly code from https://github.com/iobridge/ThingSpeak-Arduino-Examples/blob/master/Ethernet/Arduino_to_ThingSpeak.ino and http://www.instructables.com/id/RGB-LED-Tutorial-using-an-Arduino-…
Latest commit 9b5935c Dec 13, 2011 @BabyWrassler Update README
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ChristmasOrnament.ino
README

README

A few more details of this project may be found at http://makeprojects.com/Project/Cheerlights-Desktop-Christmas-Tree/1711/1