Fixing 0x00000 signature
http://forum.arduino.cc/index.php?topic=25385.0
http://eleccelerator.com/fusecalc/fusecalc.php?chip=atmega328p

http://www.arduino.cc/en/Tutorial/CapacitanceMeter
http://playground.arduino.cc/Main/CapacitiveSensor?from=Main.CapSense