ROBOTIS Dynamixel Servo

A smart bus-networked servo from Korea's ROBOTIS, the most common choice in research and low-cost arms.

Dynamixel is the smart-actuator product line from the Korean company ROBOTIS, packing a motor, reducer, control circuitry, encoder, and communication interface into a single module. Multiple servos can be strung along one bus in a daisy chain, each with its own ID; a host computer reads and writes registers for position, speed, current, temperature, and so on over the protocol, and can switch between position, velocity, and current control modes. Compared with building a motor-plus-driver setup from scratch, it eliminates a huge amount of wiring and tuning, which is why it has become a common choice for low-cost robot arms and leader-follower teleoperation rigs in robot learning. Common models range from the compact XL330 and XL430 to the more powerful XM430.

ExampleThe Koch v1.1 arm is built from XL430 and XL330 Dynamixel servos, and the GELLO teleoperation leader arm is also Dynamixel-based.

Also called

DXL, Dynamixel, Dynamixel Smart Actuator

Related

Servo (Smart Serial Bus Servo) · ROBOTIS · Koch v1.1 Arm · GELLO · Trossen Robotics ViperX 300 · RS-485

Sources

ROBOTIS e-Manual: DYNAMIXEL XL330-M288-T
low_cost_robot (Koch arm) README

As of

2026-09