First Arduino Project: Simple Square Wave Synth

Youtube description - This is my first attempt at putting together an Arduino project. I've had the thing about 20 minutes. :) (Well, by now a few hours, since it took me a while to document the project, but you get the idea.) This was made by putting together the ideas from a few of the Arduino example projects. This video is just a quick demo. For project documentation, feel free to go here:

http://www.ramp-music.net/?p=255