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commons/rebot-arm-b601

Six-axis open-source robotic arm for developers, released with STEP assemblies for two actuator variants and a URDF model.

v1.0.0CERN-OHL-W-2.0updated today
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Assembled · 389 parts

🦾 reBot-DevArm: Open Source Robotic Arm for All Developers

<p align="center"> <img src="./media/RS5_56.png" alt="reBot-DevArm Banner"> </p> <p align="center"> <a href="https://certification.oshwa.org/cn000024.html"> <img src="./media/certification-mark-CN000024-wide.png" width="180"> </a> </p> <p align="center"> <a href="./LICENSE"> <img src="https://img.shields.io/badge/License-CERN--OHL--W--2.0--for--hardware-green.svg" alt="License: CERN-OHL-W-2.0"> </a> <img src="https://img.shields.io/badge/License-Apache--2.0--for--software-pink.svg" alt="License: Apache-2.0"> </a> <img src="https://img.shields.io/badge/Commercial-Contact%20Us-red.svg" alt="yaohui.zhu@seeed.cc"> <img src="https://img.shields.io/badge/ROS-Noetic%20%7C%20Humble-orange.svg" alt="ROS Support"> <img src="https://img.shields.io/badge/Framework-LeRobot-yellow.svg" alt="LeRobot"> <img src="https://img.shields.io/badge/Framework-Isaac%20Sim-yellow.svg" alt="LeRobot"> </p> <p align="center"> <strong>🚀 100% Open Source · Embodied AI · Full Hardware + Software Stack</strong> </p> <p align="center"> <strong>📦 Build your own robotic arm · 🧠 Learn robotics · 🏭 Deploy real applications</strong> </p> <table align="center"> <tr> <td> <a href="https://www.youtube.com/watch?v=ONbpv3seiG8"> <img src="https://img.icons8.com/ios-filled/100/ff0000/youtube-play.png" width="40"> </a> </td> <td> <a href="https://www.youtube.com/watch?v=ONbpv3seiG8"> About The reBot Arm </a> </td> </tr> </table> <p align="center"> <strong> <a href="./README_zh.md">简体中文</a> &nbsp;|&nbsp; <a href="./README.md">English</a> &nbsp;|&nbsp; <a href="./README_JP.md">日本語</a>&nbsp;|&nbsp; <a href="./README_Fr.md">français</a>&nbsp;|&nbsp; <a href="./README_es.md">Español</a> </strong> </p> <p align="center"> <a href="https://discord.gg/AbGuqJhDpQ"> <img src="https://img.shields.io/discord/1409155673572249672?color=7289DA&label=Discord&logo=discord&logoColor=white"></a> <a href="https://wiki.seeedstudio.com/robotics_page/">  <img src="https://img.shields.io/badge/Documentation-%F0%9F%93%95-blue" alt="robotics wiki"></a> </p> <p align="center"> <strong>🛒 Official Purchase</strong> </p> <table align="center" border="1" cellpadding="12" cellspacing="12"> <tr> <td align="center" width="260" bgcolor="#FFF8F0"> <b>&#x1F9FE; reBot Arm B601-DM</b><br><br> <a href="https://www.seeedstudio.com/reBot-Arm-B601-DM-Assembled-Kit-with-Power-Supply-Bundle.html" target="_blank"> <big><b>&#x1F6D2; SeeedStudio Bazaar</b></big> </a> <a href="https://www.amazon.com/dp/B0H2TWVFSW" target="_blank"> <big><b>&#x1F6D2; Amazon</b></big> </a> </a> <a href="https://de.aliexpress.com/item/1005012108314029.html" target="_blank"> <big><b>&#x1F6D2; Aliexpress</b></big> </a> </td> <td align="center" width="260" bgcolor="#F0F4FF"> <b>&#x1F9FE; reBot Arm B601-RS</b><br><br> <a href="https://www.seeedstudio.com/reBot-Arm-B601-RS-Bundle-p-6898.html" target="_blank"> <big><b>&#x1F6D2; SeeedStudio Bazaar</b></big> </a> <a href="https://www.aliexpress.us/item/3256812343811970.html?gatewayAdapt=deu2usa4itemAdapt" target="_blank"> <big><b>&#x1F6D2; Aliexpress</b></big> </a> </td> </tr> </table>

📖 Introduction

reBot-DevArm (reBot Arm B601 DM and reBot Arm B601 RS) is a robotic arm project dedicated to lowering the barrier to learning Embodied AI. We focus on "True Open Source" — not just the code, we unreservedly open source everything:

  • 🦾 Two versions of the robotic arm:We will provide all open-source files for two versions of the robotic arm with the same appearance: Robostride and Damiao.
  • 🛠️ Hardware Blueprints: Source files for sheet metal parts and 3D printed parts.
  • 🔩 BOM List: Detailed down to the specifications and purchase links for every single screw.
  • 💻 Software & Algorithms: Python SDK, ROS1/2, Isaac Sim, LeRobot, etc.

Get Your Own reBot Arm

  • We offer five kit options at Seeedstudio.com :

    • Arm Body Motor Kit: Includes only motors and wiring harnesses for the robotic arm.
    • Arm Body Structural Kit: Includes only mechanical structural components.
    • Gripper Complete Kit: Includes motors, wiring harnesses and structural components for the gripper.
    • Full Kit: Includes the complete set of the robotic arm body and gripper.
    • Pre‑assembled Robotic Arm: Fully assembled finished robotic arm.
  • The Seeedstudio kit does not include a power adapter and C-clamps as standard accessories. This arrangement takes into account that users may power the unit via batteries or mount it with a custom DIY base. You may purchase a power supply separately and Power Cord, or refer to the Mean Well power solution shown at the bottom of our BOM.

  • You can also purchase the Leader Arm and 12V 10A Power Supply You may also use the 12VDC power adapter of SO-ARM101 to supply power to the Leader.


  • For reBot Arm RS Version, We offer five kit options at Seeedstudio.com :

    • Full Kit: Includes the unassembled complete set of the robotic arm body and gripper.
    • Pre‑assembled Robotic Arm: Fully assembled finished robotic arm.
  • We highly recommend using the Meanwell 48V 12.5A power supply for the RS model. If you need stronger power to unlock its full performance, you may opt for a 48V 25A power adapter.


🚀 Try the Online Simulation

Experience the reBot Arm B601-RS MuJoCo digital twin directly in your browser—no installation required. Switch between the standard arm and AGV configurations, control the joints and TCP, view the overhead and D405 wrist cameras, and run the automated put-away and stacking demos. The initial model download may take a moment; Chrome or Edge is recommended.

<p align="center"> <a href="https://yang-ci.github.io/Rebot_Arm_AGV/"><strong>▶ Launch the reBot Arm Interactive Demo</strong></a> </p>

🗺️ Roadmap & Status

We are committed to continuously maintaining and adapting to mainstream robot development ecosystems. Below is our current adaptation progress and planned release schedule:

reBot Arm B601 DM

Supported EcosystemStatusDescription / Estimated Release DateRelated Documentation
Basic Motor Usage✅ CompletedBasic motion control and API encapsulationDamiao Technology
Open-Sourcing of the New STEP 3D Structural Parts and BOM✅ CompletedSTEP files for all parts in the new version, parts BOM, and reference prices for all machined componentsreBot Arm B601-DM BOM
Reference for Real Machine Performance Testing✅ CompletedPerformance Reference of Robotic Arm under Normal and Extreme Operating ConditionsPerformance Testing
Assembly Video✅ CompletedUltra-detailed assembly steps and videoGetting Started with reBot Arm B601-DM
Python SDK✅Continuously optimized, PRs welcomeOne-stop integration of motor read/write and control for Robstride, Damiao, Mota, Gaoqing, Hexfellow and other motors.Getting Started with Motorbridge and Web UI
ROS2 Integration✅ CompletedROS2 integrated reBot Arm controller with support for kinematics, trajectory planning, and gravity compensationreBot Arm B601-DM ROS2 Integration Guide
Pinocchio Integration✅ CompletedAdaptation to the Pinocchio framework, enabling forward/inverse kinematics and gravity compensation for the robotic armGetting Started with Pinocchio for reBot Arm B601-DM and Github repo
Isaac Sim Simulation🚧 In ProgressImport USD models and enable simulated teleoperationWiki
LeRobot Integration✅ CompletedAdaptation to the Hugging Face LeRobot training frameworkGetting Started with LeRobot-based reBot Arm
Depth Camera Integration✅ CompletedVisual Grasping Demonstration Based on YOLO and Depth CameraGetting Started with Visual Grasping Demo
reSpeaker Voice Integration✅ CompletedAdd reSpeaker Flex 4-mic array to build a voice-driven intelligent robot arm control system with spatial awarenessreBot Arm B601-DM Voice Control
Gradual Updates of the Latest Algorithms⏳ PlannedMainstream algorithms will be updated progressivelyOngoing
Launch of a Series of Completely Free Courses⏳ PlannedMainstream algorithms will be updated progressivelyOngoing

Contributions from Developers

Supported EcosystemAuthorsDescription / Estimated Release DateRelated Documentation or Repository
ROS2 (Humble), third_party integration, URDF / rebotarm_bringup@danieldoradotalaveron-rb1. Passive diagnostics monitor (rebotarm_monitor_ros2): /diagnostics overlay for rqt_robot_monitor, serial/CAN-aware aggregator;<br>2. Safe park & shutdown: Capture rest pose on connect, slow return on shutdown or /rebotarm/park to prevent sudden drop;<br>3. Gravity compensation (smooth stop): MIT ramp-out when exiting gravity compensation to eliminate clack, jerk and instability during pos/vel handoff;<br>4. Gamepad teleop with IK/FK and safety measures: Gamepad control for end-effector via IK, live robot state visualization in RViz (simulation-only test);<br>5. D405 eye-in-hand TF: Xacro setup under end_link in rebotarm_bringup for RViz visualization & TF only (no driver/depth/intrinsics). Mount pose adjustable via launch file, bracket calibration not completed. Teleop FK/IK uses arm-only fixend_core URDF, full xacro for RSP/RViz.rebotarm_monitor_ros2reBotArmController_ROS2

reBot Arm B601 RS

Supported EcosystemStatusDescription / Estimated Release DateRelated Documentation
Basic Motor Usage✅ CompletedBasic motion control and API encapsulationRobstride
Open-Sourcing of the New STEP 3D Structural Parts and BOM✅ CompletedSTEP files for all parts in the new version, parts BOM, and reference prices for all machined componentsreBot Arm B601-RS BOM
Getting Started✅ CompletedQuick start of B601-RSGetting Started with reBot Arm B601-RS
Assembly Video✅ CompletedUltra-detailed assembly steps and videoreBot Arm B601-RS Assembly Video
ROS2 (Humble)✅ CompletedROS2 integrated reBot Arm controller with support for kinematics, trajectory planning, gravity compensation and MoveIt2reBot Arm B601-DM ROS2 Integration Guide
LeRobot Integration✅ CompletedAdaptation to the Hugging Face LeRobot training frameworkGetting Started with LeRobot-based reBot Arm
Pinocchio Integration✅ CompletedAdaptation to the Pinocchio framework, enabling forward/inverse kinematics and gravity compensation for the robotic armGetting Started with Pinocchio for reBot Arm B601-DM and Github repo
Depth Camera Integration✅ CompletedVisual Grasping Demonstration Based on YOLO and Depth CameraGetting Started with Visual Grasping Demo
Embodied Agent Architecture✅ CompleteAccepts natural-language commands (e.g. "pick up the red block"), automatically plans and executes grasping.Embodied Agent Architecture Design for the reBot B601 RS Robotic Arm & Source Code
Isaac Sim Simulation✅ CompletedImport USD models and enable simulated teleoperationDLI Course & Github Repo
Gradual Updates of the Latest Algorithms⏳ PlannedMainstream algorithms will be updated progressivelyOn going
Launch of a Series of Completely Free Courses⏳ PlannedMainstream algorithms will be updated progressivelyOngoing

⚙️ Hardware Specifications

reBot-DevArm is designed for desktop Embodied AI applications, balancing payload capacity with flexibility.

ParameterreBot Arm B601-DMreBot Arm B601-RS
Payload1.5kg2.5kg
Recommended Workspace70% arm reach workspace70% arm reach workspace
Max Reach767 mm754 mm
WeightApprox. 4.5 kgApprox. 6.7 kg
Repeatability< 0.2 mm< 0.2 mm
Degrees of Freedom (DOF)6 DOF + 1 Gripper6 DOF + 1 Gripper
Supported Platforms/EcosystemsROS1, ROS2, LeRobot, Pinocchio, Isaac Sim, Python SDKROS1, ROS2, LeRobot, Pinocchio, Isaac Sim, Python SDK
Supply VoltageDC 24VDC 48V

Feedback from the community

<img src="/community/GEM-4.png" height="100"><img src="/community/from_Linyan.png" height="100"><img src="/community/from_Diddi.png" height="100"><img src="/community/from_Henderson.jpg" height="100"><img src="/community/from_Sameer.png" height="100">
From GEM-4: Gemma Embodied 4 Physical AssistanceFrom Linyan Fu and Apheth D AlmeidaFrom Dhruv DiddiFrom Ed HendersonFrom Sameer
<img src="/community/from_Binh_Pham.png" height="100"><img src="/community/from_fangtianchonghui.png" height="100"><img src="/community/from_xensedyl.png" height="100"><img src="/community/from_Henderson_2.png" height="100"><img src="/community/YOR_Car.png" height="100">
From Binh_PhamFrom FangTianChongHuiXense YaoLin DongFrom Ed HendersonFrom yoshikai_man
<img src="/community/hei-robot-lift-play.gif" height="100"><img src="/community/VR_with_reBot.png" height="100"><img src="/community/reBot_grasp_fruit.png" height="100"><img src="/community/Daniel_Dorado.jpg" height="100"><img src="/community/Groot_N1.7.png" height="100">
From hei-rebot-liftFrom Martin KemkaFrom Kamil BuczyńskiFrom Daniel DoradoFrom Asier
<img src="/community/sim-to-real-vla.gif" height="100">
Seeed reBot Arm and NVIDIA Isaac Sim-to-Real VLA Course

🧹Optional Hardware

Wirst Camera Mount

32×32 UVCIntel D435iIntel D405 & Gemini 305Gemini 2
<img src="./hardware/reBot_B601_DM/3D_Printed_Parts/images/UVC_camera_mount.png" height="100"><img src="./hardware/reBot_B601_DM/3D_Printed_Parts/images/D435i.jpg" height="100"><img src="./hardware/reBot_B601_DM/3D_Printed_Parts/images/D405.jpg" height="100"><img src="./hardware/reBot_B601_DM/3D_Printed_Parts/images/Gemini2.jpg" height="100">
STEPSTEPSTEP · design notesSTEP

Compatible with Leader Arm

Star Arm 102-LDOpen to compatibility integration
<img src="./hardware/reBot_B601_DM/3D_Printed_Parts/images/star_arm_102.jpg" height="100">View Series Hub &Github repo

DIY Finger

Soft FingerOpen to compatibility integration
<img src="./hardware/reBot_B601_DM/3D_Printed_Parts/images/Soft_Finger.png" height="100">Comming soon
Finger Mount(ABS/PLA) and Finger (TPU 95+)Coming soon

Recommended Optional Hardware

<table> <thead> <tr> <th>Category</th> <th>Type</th> <th>Preview</th> <th>Product</th> <th>Link</th> </tr> </thead> <tbody> <tr> <td rowspan="8" align="center"><strong>Camera</strong></td> <td rowspan="6" align="center">Depth Camera</td> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/0/-/0-101090144--orbbec-gemini-2-3d-camera.jpg" alt="Orbbec Gemini 2 3D Camera" width="120"></td> <td><strong>Orbbec Gemini 2 3D Camera</strong></td> <td><a href="https://www.seeedstudio.com/Orbbec-Gemini-2-3D-Camera-p-6464.html">Seeed Studio</a></td> </tr> <tr> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/1/0/1000000774.png" alt="Orbbec Gemini 336 Depth Camera" width="120"></td> <td><strong>Orbbec Gemini 336 Depth Camera</strong></td> <td><a href="https://www.seeedstudio.com/Orbbec-Gemini-336-3D-Camera-3D-p-6662.html">Seeed Studio</a></td> </tr> <tr> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/1/-/1-100010971-orbbec-gemini-335-lg.jpg" alt="Orbbec Gemini 335LG 3D Camera" width="120"></td> <td><strong>Orbbec Gemini 335LG 3D Camera</strong></td> <td><a href="https://www.seeedstudio.com/Orbbec-Gemini-335LG-3D-Camera-p-6541.html">Seeed Studio</a></td> </tr> <tr> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/0/0/0035718.png" alt="SLAMTEC Aurora S, Integrated Spatial Perception Module" width="120"></td> <td><strong>SLAMTEC Aurora S</strong><br></td> <td><a href="https://www.seeedstudio.com/SLAMTEC-Aurora-S-AI-Integrated-Spatial-Perception-System-p-6669.html">Seeed Studio</a></td> </tr> <tr> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/i/n/intel_realsense_d435i_34_1_1.jpg" alt="Intel RealSense Depth Camera D435i" width="120"></td> <td><strong>Intel RealSense Depth Camera D435i</strong></td> <td><a href="https://www.seeedstudio.com/Intel-RealSense-Depth-Camera-D435i-p-4423.html">Seeed Studio</a></td> </tr> <tr> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/1/-/1-100000540-realsense-d405-3d-camera.jpg" alt="RealSense Depth Camera D405" width="120"></td> <td><strong>RealSense Depth Camera D405</strong></td> <td><a href="https://www.seeedstudio.com/RealSense-D405-3D-Camera-p-6758.html">Seeed Studio</a></td> </tr> <tr> <td rowspan="2" align="center">Monocular Camera</td> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/0/-/0-101090101-3mp-gmsl2-camera-module-190-degree.jpg" alt="Sensing SG3S-ISX031C-GMSL2F 3MP GMSL2 Camera" width="120"></td> <td><strong>Sensing SG3S-ISX031C-GMSL2F 3MP GMSL2 Camera</strong></td> <td><a href="https://www.seeedstudio.com/SG3S-ISX031C-GMSL2F-p-6245.html">Seeed Studio</a></td> </tr> <tr> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/s/2/s231.1.jpg" alt="ET-S231 Megapixel 120 Degree Wide-Angle 1080P USB Camera Module" width="120"></td> <td><strong>ET-S231 Megapixel 120 Degree Wide-Angle 1080P USB Camera Module</strong></td> <td><a href="https://www.seeedstudio.com/ET-S231-120-USB-Camera-p-6683.html">Seeed Studio</a></td> </tr> <tr> <td rowspan="2" align="center"><strong>Microphone</strong></td> <td rowspan="2" align="center">Mic Array</td> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/1/-/1-100070894-respeaker-flex-xvf3800-circular-4-with-xiao-esp32s3_1_.jpg" alt="reSpeaker Flex XVF3800 Circular-4 with XIAO ESP32S3" width="120"></td> <td><strong>reSpeaker Flex XVF3800 Circular-4 with XIAO ESP32S3</strong><br><sub>AI Mic Array for Robotics and Embodied AI</sub></td> <td><a href="https://www.seeedstudio.com/reSpeaker-Flex-XVF3800-Circular-4-with-XIAO-ESP32S3-p-6739.html">Seeed Studio</a></td> </tr> <tr> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/1/-/1-respeaker-xvf3800-4-mic-array.jpg" alt="reSpeaker XMOS XVF3800" width="120"></td> <td><strong>reSpeaker XMOS XVF3800</strong><br><sub>AI-powered 4-Mic Array for Clear Voice Even in Noise</sub></td> <td><a href="https://www.seeedstudio.com/ReSpeaker-XVF3800-USB-Mic-Array-p-6488.html">Seeed Studio</a></td> </tr> <tr> <td rowspan="2" align="center"><strong>Controller</strong></td> <td rowspan="2" align="center">Edge Controller</td> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/1/1/110110147.jpg" alt="reComputer J3011-Orin Nano 8GB" width="120"></td> <td><strong>reComputer J3011-Orin Nano 8GB</strong></td> <td><a href="https://www.seeedstudio.com/reComputer-J3011-p-5590.html">Seeed Studio</a></td> </tr> <tr> <td align="center"><img src="https://media-cdn.seeedstudio.com/media/catalog/product/cache/7f7f32ef807b8c2c2215b49801c56084/i/m/image-kit-3.png" alt="NVIDIA Jetson AGX Thor Developer Kit" width="120"></td> <td><strong>NVIDIA Jetson AGX Thor Developer Kit</strong></td> <td><a href="https://www.seeedstudio.com/NVIDIA-Jetson-AGX-Thor-Developer-Kit-p-9965.html">Seeed Studio</a></td> </tr> </tbody> </table>

🎓 Full-Stack Robotics Ecosystem

reBot-DevArm is not just a robotic arm, but a robotics learning community. We share the following general tutorials for free:

🖥️ Edge Computing & Master Control

  • Jetson —— AI Inference & Compute Core
  • Raspberry Pi —— General Linux Development Environment
  • ESP32 —— Low-power Wireless Control Node

📡 Sensors & Peripherals

👉 Click to Enter Wiki Knowledge Base (All tutorials are free to view)


🙌 References & Acknowledgments

The path of open source is never lonely. The birth of the reBot-DevArm project would not be possible without the full support of Seeed Studio, the global open source community, and excellent hardware partners. We pay our highest respects to the following projects and teams:

🌍 Ecosystem & Software Support

⚙️ Core Hardware Partners

Thanks to the following manufacturers for providing high-performance motor and actuator solutions:

💡 Inspiration

This project is deeply inspired by the following excellent open source projects:

🎃 Prototype Contributors

  • SeeedStudio AI Robotics Team's: Yaohui Zhu (yaohui.zhu@seeed.cc)
  • SeeedStudio STU: Wentao Dong
  • SeeedStudio STU: Weiwei Xu
  • SeeedStudio Purchasing Department: Fengqun Peng

👥 Contributors

Our Top Contributors

<p align="center"><a href="https://github.com/Seeed-Projects/reBot-DevArm/graphs/contributors"> <img src="https://contributors-img.web.app/image?repo=Seeed-Projects/reBot-DevArm" /> </a></p>

Coming soon... Welcome to submit PRs to become a contributor!

Star History

<p align="center"> <picture> <source media="(prefers-color-scheme: dark)" srcset="assets/star-history/star-history-dark.svg">

<source media="(prefers-color-scheme: light)" srcset="assets/star-history/star-history-light.svg">

<img src="assets/star-history/star-history-light.svg"> </picture> </p>

reBot-DevArm Project License

  • Hardware Design © 2026 Seeed Studio Co., Ltd. (SeeedStudio), open-sourced under CERN-OHL-W-2.0
  • Firmware Code © 2026 Seeed Studio Co., Ltd. (SeeedStudio), open-sourced under Apache-2.0

Rights and Restrictions

Dear developers and industry experts, the reBot Arm robotic arm project has always adhered to the core philosophy of Agility, Openness, Responsibility, and Symbiosis to serve the developer community. Our vision is to enable every enthusiast to systematically master the hardware architecture and software principles of robotic arms, and to gain an immersive experience with cutting-edge embodied intelligence algorithms through the reBot project.

For the first five months since launch, the project has been using the CC BY-SA NC (Non-Commercial) open source license. The original intention was to allow all developers and contributors to focus on iterating and improving the product during its initial, less mature phase, free from commercial concerns, and to fully dedicate themselves to project co-construction and optimization.

After months of in-depth product polishing and technical refinement by Seeed Studio, effective May 11, 2026, the reBot Arm project has officially transitioned from the CC BY-SA NC license to the CERN-OHL-W 2.0 open source license.

From this point forward, the project achieves 100% full-stack open source (both hardware and software), granting full commercial compliance and usage rights for all scenarios.

We look forward to your continued participation with an inclusive and collaborative spirit, to sustain, maintain, and deepen the reBot Arm open source community, to share the fruits of open source, and together build an ecosystem for embodied intelligence.

This project uses different open source licenses for Hardware and Software. Please confirm the license terms applicable to the part you are using.

Item / LicensereBot Hardware: CERN-OHL-W-2.0reBot Software SDK: Apache-2.0
✅ Commercial Use Allowed✅ Allowed✅ Allowed
✅ Modification Allowed✅ Allowed✅ Allowed
✅ Redistribution Allowed✅ Allowed✅ Allowed
✅ Closed-source Integration/Redistribution❌ Conditional (see CERN-OHL-W-2.0 for details)✅ Allowed (no need to disclose modified code)
⚠️ Copyright Retention Required✅ Required✅ Required
⚠️ License Text Retention Required✅ Required✅ Required
⚠️ Modification Notice Required✅ Required (with date and description)✅ Required (with modification description)
⚠️ Patent Grant✅ Explicit patent grant (see CERN-OHL-W-2.0 for details)✅ Explicit patent grant
⚠️ Source Provision upon DistributionMust provide hardware "Complete Source"❌ No mandatory source provision requirement
⚠️ External/Closed Module Compatibility✅ Allowed (Weakly Reciprocal feature)✅ Fully allowed
🔗 Relationship with Other Components/ModulesIndependent interface modules (External Material) may retain original closed licenseNo restrictions, can link with code under any license
📄 Official License Full TextCERN-OHL-W-2.0Apache-2.0

☎ Contact Us