Changes

This project uses the [http://www.varesano.net/projects/hardware/FreeIMU FreeIMU] library to read the motion sensors and calculate sensor-fused orientation. I've attached a copy of the FreeIMU_quaternion code here, you only need to upload it once.  Be sure to change set the baud rate in the program to the max baud for the Arduino Pro Mini, 38400 bps. You should only need to upload this once.