Easier to do in software if you can spare the CPU cycles, thankfully. http://arduino.cc/en/Tutorial/Debounce http://arduino.cc/en/Tutorial/Debounce or http://p

Easier to do in software if you can spare the CPU cycles, thankfully. http://arduino.cc/en/Tutorial/Debounce http://arduino.cc/en/Tutorial/Debounce or http://playground.arduino.cc/code/bounce http://playground.arduino.cc/code/bounce https://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/robot/buttons_and_switches/ https://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/robo...