Tilt Sensor Report - project 4
From Physical Programming
http://arduino.cc/en/Tutorial/Button
http://www.hummingbirdelectronics.com.au/tiltsensor.html?gclid=CMzZzbewu6MCFQXObgodhg2AzQ
http://en.wikipedia.org/wiki/Tilt_sensor
http://en.wikipedia.org/wiki/Tilt_sensor
http://www.spectronsensors.com/primer-1.php
http://www.leveldevelopments.com/tilt-sensor-tilt-switch.htm

