In mobile robots, servomotors are widely used. This kind of actuator is used to move sensors, wheels, and robotic arms. A low-cost solution is to use RC servomotors. It provides a movement range of 180 degrees and a high torque for the existing servomotors.

The servomotor that we will explain in this section is a new type of servomotor designed and used for robotics. This is the Dynamixel servomotor.

Dynamixel is a lineup, high-performance, networked actuator for robots developed by ROBOTIS, a Korean manufacturer. ROBOTIS is also the developer and manufacturer of OLLO, Bioloid, and DARwIn-OP DXL. These robots are used by numerous companies, universities, and hobbyists due to their versatile expansion capability, powerful feedback functions, position, speed, internal temperature, input voltage, and their simple daisy chain topology for simplified wiring connections.

In the following image, you can see Dynamixel AX-12 and the USB interface. Both are used in this...