The RPI-1031 tilt sensor is capable of sensing a change in orientation in four different directions: forward, back, left or right. This breakout board makes it easier to incorporate the RPI-1031 in your next project by breaking the necessary pins out to standard 0.1" spaced headers. This board will work at either 3.3 or 5V. Project description, more information and ordering can be found at https://www.sparkfun.com/products/10621 Datasheet: http://www.sparkfun.com/datasheets/Sensors/rpi-1031.pdf Product Page: http://www.rohm.com/eu/highlights/product-news/tilt-sensor-rpi-1031.html bildr Tutorial: http://bildr.org/2012/02/rpi-1031_arduino/