SO-101 Follower Arm Electronics Kit
Power and control your SO-101 follower arm with this specialized electronics package based on the LeRobot SO-ARM100 specifications.
This kit includes everything needed to operate the follower arm (the arm with the gripper that does the work): 6 high-torque 12V serial bus servos, a 12V power supply, a Serial Bus Servo Adapter, and all necessary wiring harnesses and connectors.
Important: Leader and follower arms require different electronics due to voltage differences. This kit is specifically for the FOLLOWER arm (with gripper). For the leader arm (no gripper), you need the Leader Arm Electronics Kit which uses 7.4V servos.
The 12V servos provide higher torque for gripper operation and task execution.
Perfect for:
- Completing your Follower Arm Frame Kit
- Building teleoperation systems (pair with leader electronics)
- Dual-follower AI setups (buy 2 kits for both followers)
- Replacement or upgrade for existing follower arm
Note: This is specifically for the FOLLOWER arm. For complete teleoperation, you also need the Leader Arm Electronics Kit.
Ships in 2–5 business days
Fulfilled by Amazon from US warehouses. Tracking emailed once the box is on the truck.
30-day return on defects
If a part arrives damaged or wrong, reply to your order email — we make it right. See full terms.
Open-source by design
Every part matches the upstream LeRobot SO-ARM100 spec. Swap, modify, and share freely.
Open-Source Design
This kit is based on SO-ARM100 (LeRobot Project) by Hugging Face and LeRobot Community.
Key Features
- 6x 12V high-torque serial bus servos
- Higher torque for gripper operation
- 12V regulated power supply
- All wiring and connectors included
- USB-C computer connection
- Compatible with LeRobot software
- No soldering required
Technical Specifications
| SKU | SO-101-FOLLOWER-ELEC |
| Servos | 6x Feetech STS3215 Serial Bus Servos (12V) |
| Torque Rating | 30 kg·cm per servo |
| Power Supply | 12V regulated power adapter |
| Connectivity | USB-C to host computer via Serial Bus Servo Adapter |
| Wiring | Complete harness with JST connectors |
| Compatibility | Designed for SO-101-FOLLOWER-FRAME |
| Arm Type | Follower arm (gripper/task execution) |