[marccenter]

Easy-C has built in functionality to use gyro's. (Analog Devices ADXSR300, available at Digikey PN ADXSR300EB-ND) is configured to connect directly to the VEX system. It connects into the analog port. Price $53.75 per piece.

If you purchase an accelerometer or gyroscope, make sure it has an analog output (typically 2.5V when not stationary). There are some parts on the market that have a different style of output that will be more difficult to interface to the VEX system.