I have been beta-testing a number sensor on the arduino for a couple of projects lately and it has resulted in a number of experiments, including capacitance sensors, piezos as sensors, and some of the more standard IR and Sonar sensors. If anyone is interested I could bring the results to the next Dorkbot.<br>
<br>Also I wouldn't mind seeing a demo of the Frustrated Total Internal Reflection stuff if people have something to show. I have been thinking about making one of those myself for a while now.<br><br>Kelly<br>