Star Arm 102-LD LeRobot Leader Robotic Arm
Star Arm 102-LD Robotic Arm Alternate View
Star Arm 102-LD Robotic Arm
Star Arm 102-LD Robotic Arm
Star Arm 102-LD Robotic Arm Commercial and Open Source Versions
Star Arm 102-LD Dual Robotic Arms Configuration
Star Arm 102-LD Robotic Arm Detail View
Star Arm 102-LD Robotic Arm Base Detail
Star Arm 102-LD UART Bus Servo Motor Module
Star Arm 102-LD LeRobot Leader Robotic Arm
Star Arm 102-LD Robotic Arm Alternate View
Star Arm 102-LD Robotic Arm
Star Arm 102-LD Robotic Arm
Star Arm 102-LD Robotic Arm Commercial and Open Source Versions
Star Arm 102-LD Dual Robotic Arms Configuration
Star Arm 102-LD Robotic Arm Detail View
Star Arm 102-LD Robotic Arm Base Detail
Star Arm 102-LD UART Bus Servo Motor Module

Star Arm ยท 102-LD | Leader

$199.00

In stock

Leader arm ยท Hugging Face LeRobot-listed ยท 6+1 DoF ยท 420mm reach ยท 12-bit encoders

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SKU: 02.09.00000026

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    Power Supply Notice

    Due to regional differences, the power adapter is not included. If local customs restrict power supplies, please purchase a compatible adapter locally or order one from our store.

    Overview

    Lightweight Design for Fatigue-Free Operation

    Weighing only 721g, this 6+1 DoF master arm features low-friction joint actuators for a smooth, effortless operational feel. Its ergonomic end-effector grip perfectly aligns with natural finger curvature, ensuring zero hand fatigue even during prolonged motion capture and demonstrations.

    12-Bit Encoders for Precise Trajectory Capture

    Equipped with 12-bit magnetic encoders (0.088ยฐ resolution) across all 7 joints, it precisely captures subtle wrist and finger movements. The collected motion data is free of frame drops or jitters, providing clean trajectories that can be fed directly into imitation learning models without extra filtering.

    Broad Compatibility for Multiple Follower Arms

    Offers broad compatibility, seamlessly driving the Star Arm 102-FL as well as third-party follower arms (e.g., reBot B601-DM and Xinghai Tu). A single master device can control multiple execution platforms, significantly reducing hardware costs for multi-platform teleoperation.

    Plug-and-Play Setup for Rapid Deployment

    Operates on a compact 12V/3A power supply with direct USB serial connectivity. Features driver-free setup on Ubuntu 22.04, with simple CH340 driver deployment for Windows and macOS to get up and running within 5 minutes.

    Development Ecosystem

    LeRobot Ecosystem Integration

    Officially recognized in the Hugging Face LeRobot ecosystem as a standard teleoperation device. It allows direct collection of Hugging Face-compatible datasets without additional adapter setup, streamlining imitation learning data collection, model training, and real-world deployment for cutting-edge Embodied AI research.
    Star Arm ยท 102-LD | Leader robot servo image for robotics applications

    ROS 2 Support

    Publishes standard joint state topics for seamless integration with MoveIt 2, facilitating motion planning and robotics research.

    Python SDK

    Developer-friendly SDK. Install via pip and start master-slave teleoperation with one line of code in under 5 minutes.

    Web-Based Control Interface

    Zero-code, out-of-the-box browser control. Supports real-time teleoperation, joint angle monitoring, one-click zero-point calibration, and PID parameter tuning without any setupโ€”enabling complete beginners to get started quickly.
    Star Arm ยท 102-LD | Leader robot servo image for robotics applications

    Applications

    Classroom Robotics

    Hands-on robotic arm demos for university courses โ€” students learn kinematics, control theory, and motion planning with real hardware.

    AI Trajectory Collection

    Batch-collect high-quality motion data for imitation learning and reinforcement learning โ€” 12-bit encoders deliver clean, jitter-free trajectories.

    Teleoperation Retrofit

    Upgrade existing lab robotic arms with a low-cost leader-follower system โ€” no full hardware replacement needed.

    Maker & STEM Demos

    Interactive robot demos for maker spaces, science fairs, and public outreach โ€” engaging, safe, and easy to set up.

    Algorithm Prototyping

    Single-operator teleoperation for rapid validation of grasping, path planning, and AI robotics algorithms.

    Part List

    102-LD

    Qty.

    Screws

    1

    Threadlocker

    1

    Woodworking Clamps

    2

    Spare UC-01 PCB

    1

    XT30 Power Adapter Cable

    1

    200mm Servo Extension Cable

    1

    USB-A to USB-C Cable

    1

    Mouse Pad

    1

    Base Plate

    1

    Specification

    ย Item
    Star Arm 102-LD
    Reach
    420mm
    DOF
    6+1
    Joint Range
    Joint 1: ยฑ110ยฐ | Joint 2: 0ยฐ~180ยฐ | Joint 3: 0ยฐ~270ยฐ | Joint 4: ยฑ90ยฐ | Joint 5: ยฑ65ยฐ | Joint 6: ยฑ150ยฐ | Controller: 0~90ยฐ
    Servos
    RA8-U01H-M ร— 4 (Joints #1-#4) | RA8-U02H-M ร— 1 (Joint #5) | RA8-U03H-M ร— 2 (Joint #6 & Wrist Joint)
    Protocol Type
    UART
    Communication Hub
    UC-01
    Power Supply
    12V 3A / DC5521
    Weight
    721g
    Operating Temperature
    0-40โ„ƒ
    Works with ROS 2
    โœ“
    Works with Lerobot
    โœ“

    CAD Drawings

    Documents

    Certification

    HS Code

    9023009000

    ECCN Code

    EAR99

    Country of Origin

    China

    Certifications

    CE, FCC, RoHS
    Product SeriesStar Arm 102
    Reach 420mm
    DOF6+1
    Joint RangeJoint 1: ยฑ110ยฐ | Joint 2: 0ยฐ~180ยฐ | Joint 3: 0ยฐ~270ยฐ | Joint 4: ยฑ90ยฐ | Joint 5: ยฑ65ยฐ | Joint 6: ยฑ150ยฐ | Controller: 0~90ยฐ
    ServosRA8-U01H-M ร— 4 (Joints #1-#4) | RA8-U02H-M ร— 1 (Joint #5) | RA8-U03H-M ร— 2 (Joint #6 & Wrist Joint)
    Protocol TypeUART
    Communication Hub UC-01
    Power Supply 12V 3A / DC5521
    Weight721g
    Operating Temperature0-40โ„ƒ
    Works with ROS 2โœ“
    Works with Lerobotโœ“

    Shipping & Delivery

    We ship orders to customers worldwide. Most orders are dispatched via DHL Express to provide fast, reliable international delivery with end-to-end tracking.

    Processing Time

    In-stock items are usually processed within 1โ€“3 business days after payment is confirmed.

    Shipping Method

    Our default international shipping method is DHL Express. Other trusted express or air services may be used when appropriate.

    Estimated Delivery Time

    DHL Express delivery typically takes 3โ€“7 business days after dispatch for most international destinations.

    Shipping Cost

    Shipping costs are calculated based on the destination, package weight, dimensions, and selected shipping method. The final shipping cost will be shown at checkout before payment.

    For large-volume or special shipments, please contact us for a shipping quotation.

    Customs Duties & Import Taxes

    International orders may be subject to customs duties, import taxes, VAT/GST, brokerage fees, or other charges required by the destination country/region.

    Important

    These charges are not included in the product price or shipping cost unless specifically stated. Customers are responsible for any applicable import duties, taxes, and customs-related fees. Please check with your local customs office before placing an order.

    Order Tracking

    Once your order has been shipped, we will provide a tracking number by email or through your account order details. Tracking information may take up to 24 hours to update after the shipment is collected by the carrier.

    Delays & Special Situations

    Delivery may be delayed due to public holidays, customs inspections, weather conditions, carrier disruptions, force majeure events, or other circumstances beyond our control.