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Product COM-00105 | about 4 years ago

I bought a couple of these for fun. I hooked it up to the PWM channels on my microcontroller, and output a sine wave of slightly different frequency to each colour channel, and it projects a really neat cycling colour pattern on the roof when I turn the lights out! I posted a demo… kinda hard to see with my webcam, but you can see that it works.
http://www.youtube.com/watch?v=2Rm2VQqJ2tk