Compatible with Dynamixel AX/MX series servos Power Supply:6.5 - 12V UART interface for deeper development SPI Interface (Digital 10,11,12,13) The Smart Servo Controller for Arduino allows to drive multi servos with a daisy chain connection to your Arduino processor and build robots with powerful servos. This board Integrates a half duplex circuit inside. That means the transmit wire from your UART is connected to all of the AX-12 servos. Because of the servo can be linked by serial bus, which can link up to 200+ servos. Each unit can feedback its position, rotation velocity, torque, current, motor temperature and so on. It can do rotating all around, and the velocity can be controlled, just act as a gear motor. This feature enables it to work as a motor of wheeled robots, or tracked robots. Applications Education Robot Arm Humanoid Robot Hexapod Robot Any other servo driven application