WantzChas wrote
That's so cool, how does it work? The sensor thing?
I am no tech.. but this is what Zachary Vex says
The probe circuit generates a small (one or two inches high) "bubble" of RF energy at about a million cycles per second above the copper plate. As your foot or hand (or any wet or metallic object, for that matter) approaches the copper plate, the RF field is disturbed and the circuit reacts by increasing the brightness of an LED, which drives a photoresistive cell and controls the Z. Vex wah circuit...
Simple eh? ?
