#CapacitiveSensor Library# CapacitiveSensor lets you create sensors that can detect touch or proximity. http://www.pjrc.com/teensy/td_libs_CapacitiveSensor.html http://playground.arduino.cc/Main/CapacitiveSensor http://www.youtube.com/watch?v=BHQPqQ_5ulc CapacitiveSensor was originally written by Paul Badger and is now maintained by Paul Stoffregen. ![CapacitiveSensor Demo](http://www.pjrc.com/teensy/td_libs_CapacitiveSensor_1.jpg)