Unitree
Digital Servo

Compact and Designed for Embodied Intelligence Applications

The YS-342026 series digital servo is a modular driver, consisting of a gear reducer, a brushless high-speed motor, and a control board package.

The motor and reducer are highly integrated, with a compact size, built-in temperature sensor, and support for multiple operating modes.

Equipped with a standard brushless high-speed motor, it has strong power, longer service life, and significantly improved precision and response speed.

The J288 model is an upgraded version of the S288 model, upgraded from engineering plastic gears and engineering plastic shells to metal gears and aluminum alloy shells, thereby enhancing heat dissipation, servo life, and impact resistance.

Can be widely used in various robot joints and power components such as robotic arms and dexterous hands.

The first choice for robot competitions, DIY creation, scientific research and education, and the robot field.

Industry Applications

DIY Creation

Scientific Research and Education

Motion Joints

Robot Competitions

Installation Diagram
  • Front Fixing Diagram

  • Back Fixing Diagram

  • YS-342026-S288
  • YS-342026-J288
  • Input Voltage

    Min.

    6.4V

    Recommended

    12.6V

    Max.

    12.6V

  • Performance Characteristics

    Voltage

    12.6V

    No-Load Current

    0.27A@12V

    Maximum Line Current

    0.32A

    Maximum (No-Load) Speed

    16.5rad/s

    Torque Constant

    0.554Nm/A

    Maximum (Stall) Torque

    The Torque Is In The Same Direction As The Speed: 0.07Nm

    The Toque Is In The Opposite Direction of The Rotational Speed: 0.2Nm

  • Operating Temperature

    Min.

    -20℃

    Max.

    The driver board shuts down and reports an overheat error when exceeding 90 degrees

    The winding shuts down and reports an overheat error when exceeding 120 degrees

  • Others

    Position Sensor

    Rotor, output end, dual absolute value encoder

    Motor

    Brushless Motor

    Baud Rate

    6,000,000bps

    Control Algorithm

    Hybrid Control

    Gear Type

    Spur Gear

    Gear Material

    Engineering Plastic

    Shell Material

    Engineering Plastic

    Dimensions (W x H x D)

    20 x 34 x 26mm

    Weight

    19.5g

    Gear Ratio

    288.35:1

    Command Signal

    Digital data packet

    Rotor End Encoder Resolution

    15bit

    Protocol Type

    Half-duplex asynchronous serial communication

    (8bit, 1stop, No Parity)

    Connection (Physical)

    TTL level multi-point bus

    ID

    0-14

    Motor Sensing Feedback

    Rotor torque, Rotor angle, Output end angle, Rotor angular velocity, Temperature, Voltage, Error status

    Protocol Version

    Unitree Custom Protocol

    Operating Mode / Angle

    Hybrid mode: Rotor torque, Rotor angle, Rotor angular velocity, Rotor stiffness, Rotor damping

    Standby Current [mA]

    0.05A@12V

This product is a civilian robot. We kindly request that all users refrain from making any dangerous modifications or using the robot in a hazardous manner.

Please visit Unitree Robotics Website for more related terms and policies, and comply with local laws and regulations.