Make your own Theremin. Sort of.

theramin.PNG

A Theremin is a musical instrument that you control by waving your hands. It's used a lot to provide spooky sounds for science fiction and horror movies. A "proper" theremin uses a tuned circuit that is which is controlled by the player waving their hands near a couple of antennas. 

I thought we could have a go at making something similar using just a light sensor and an Arduino, so I've come up with the circuit above to get started. You can find the detailed instructions here. We've been using these little exercises at the c4di Hardware Group, which met again today and will meet again on Thursday 5th July. Sign up here if you want to come along and make some annoying noises....