The Pololu serial 8-servo controller allows you to control up to eight RC servos with almost any robot controller or computer. Connect multiple units to the same serial line to control up to 128 servos independently.
The MGS1600GY is a sensor capable of detecting and reporting the position of a magnetic field (typically magnetic tape on the floor) along its horizontal axis. Includes a built in Gyro. Replaces MGS1600 TS-072-000