Working prototype

.....Prototype might be strong word.....

http://www.youtube.com/watch?v=zy7it7ZGE4s

Sorry for the sidewaysness and low level audio.

It's aliiiive

Smoke test of light controller.

Phototransistor

Here some random video showing how to use a phototransistor. It works even simpler than the photo-resistor we all know and love not to mention it's really really cheap ($.14 cents). Think of it like a switch activated by light (infrared in this case although other types are available) Super simple and way affordable. Can be made into a switch type device for Arduino easy.