Build your own imitation learning robotic arm with the optimized version: SO-ARM101! Designed for LeRobot and Hugging Face projects, these kits include servo motors, adapter board, and cables. Open-source, low-cost, and DIY-friendly—perfect for robotics enthusiasts and developers. Start prototyping today with our comprehensive resources! Noted that the motor kit does not include 3D-printed parts. If you do need them, please order the 3D-printed skeleton and motor kit together. Otherwise, the 3D-printed parts will not be included.
- 6 Degree-of- Freedom(DOF) Arm — Six STS3215 magnetic-encoder bus servos deliver 30 kg·cm torque per joint with 12-bit absolute position feedback for smooth, quiet, and repeatable motion
- Hugging Face LeRobot Native Support — Works out of the box with the LeRobot framework for imitation learning; collect teleoperation data and train ACT/Diffusion models with community-shared pipelines.
- Affordable & Flexible Kit Options — Low‑cost 3D‑printable robotic arm with flexible kit options. Select full‑assembly, servo‑only pack or unassembled parts to match your budget and project needs.
- Fully Open-Source — All hardware designs, BOM, firmware, and software are publicly available; modify, extend, and share freely
One‑Stop Guided Setup & Cloud‑Powered Robot AI Training
Arm Type | SO-ARM101 | |
Leader Arm | Follower Arm | |
Motor Configuration | 1 × 7.4 V motor, 1:345 gear ratio — Joint 2 | 12x (12V) 1:345 gear ratio motors for all joints |
2 × 7.4 V motors, 1:191 gear ratio — Joints 1 & 3 | ||
3 × 7.4 V motors, 1:147 gear ratio — Joints 4 & 5 & Gripper | ||
Power Supply | DC 5V3A | DC 12V2A |
DoF | 5+1 | |
Payload | 500g | |
Angle sensor | 12-bit magnetic encoder | |
Operating Temperature Range | 0℃～40℃ | |
Communication Method | UART | |
Control Method | PC | |
What’s inside each kit?
Which Kit Is Right For You?
| SO-ARM101 Pro Servo Motor Kit | SO-ARM101 Pro Unassembled Bundle | SO-ARM101 Pro Kit | |
| Assembly | Structural parts to be 3D‑printed by user | Assembly from cratch | Pre-assembled |
| USB Camera | Excluded | Excluded | Included |
| Best For | Users with existing 3D-printed frames or custom enclosures | Hobbyists who enjoy the build process and want a complete kit. Select accessories as you like. | Researchers, educators, and teams who want to skip the build and focus on AI |
| Time to First Experiment | 8+ hours | 2-3 hours | Under 30 minutes |
Disclaimer
Seeed Studio only provides the hardware required for LeRobot.
For SO-ARM10x hardware , please refer to: TheRoboStudio for synchronized updates.
For software and tutorials, please follow: Huggingface/Lerobot.
Please promptly report the issue to the LeRobot platform or the LeRobot Discord channel.
Leader‑Follower Teleoperation
Imitation Learning & Reinforcement Learning
Community Inspiration
Quick Start Developer Resources
- Start building your first Physical AI Project in 30 mins with SenseCraft
- Step-by-Step Guide: SO-ARM 101 Quick Start
- Open-Source Code: Access PyTorch models, simulation tools, and datasets on the Hugging Face LeRobot GitHub Repository
- Community & Support: Join discussions, share models, and get real-time help on the Seeed Discord Channel & FaceBook. Join our Facebook Group to claim exclusive coupons worth up to $100 USD.
| HSCODE | 8501109990 |
| USHSCODE | 8501106080 |
| UPC | |
| EUHSCODE | 8501109390 |
| COO | CHINA |
x1 | |
x2 | |
x3 | |
x6 | |
x2 | |
Stud | x8 |
Screw | x8 |
5V Power Supply Cable (Multiple head) | x1 |
12V Power Supply Cable (Multiple head) | x1 |
USB-C Cable | x2 |
DC Power Pigtail Cable | x2 |
Fixing clip | x4 |
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