Etch-a-Sketch
.
This project uses an arduino, a photo-resistor two potentionmeters, and a resistor to create an etch-a-sketch type of project. The user can create circles by controlling the two potentionmeters with the photo-resistor determining how dark the circles are sketched
I got this idea from a website called Makezine.com. I got the instructions and the code needed for both Arduino and Processing from this website.
http://blog.makezine.com/projects/circle-a-sketch/
http://blog.makezine.com/projects/circle-a-sketch/