This is a breakout board for the L3G4200D low-power three-axis angular rate sensor. The L3G4200D has a full scale of ±250/±500/±2000 dps and is capable of measuring rates with a user-selectable bandwidth. These work great in gaming and virtual reality input devices, GPS navigation systems and robotics. Project description, more information and ordering can be found at https://www.sparkfun.com/products/10612 Datasheet: http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Sensors/Gyros/3-Axis/CD00265057.pdf Example Code: http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Sensors/Gyros/3-Axis/L3G4200D_Example.zip Bildr Tutorial: http://bildr.org/2011/06/l3g4200d-arduino/