Experiments with capsense - any metal as touch sensor
The capacitiveSensor library turns two or more Arduino pins into a capacitive sensor, which can sense the electrical capacitance of the human body. All the sensor setup requires is a medium to high value resistor and a piece of wire and a small (to large) piece of aluminum foil on the end. At its most sensitive, the sensor will start to sense a hand or body inches away from the sensor.
Created a switchboard for room using Aluminium foil.
#####Check this on YouTube
DESC:
A simple application of capsense is to create touch based switch boards. The concept is really simple, we keep tracking the time it takes to fully charge the thus formed capacitor (metal ~ Aluminium Foil in this case).