JUXI Bus Servo Driver Board
Overview
The JUXI bus servo adapter is an all-in-one serial bus servo control solution designed for LeRobot SO-ARM100/101 robot arms and multi-servo robotics projects. It integrates servo power and control circuits on one compact board, eliminating complex wiring and separate power circuits.
Key features:
- Single-bus control of up to 253 serial bus servos
- 7-12.6V wide voltage input with integrated power (DC 5521)
- Real-time feedback: position, speed, torque, operation mode
- Type-C plug-and-play, compatible with Raspberry Pi / Jetson / RDK / PC
- Precision-machined mounting holes — installs onto SO-ARM100/101 in 2 minutes
- TVS protection (over-voltage / over-current)
Specifications
| Category | Spec |
|---|---|
| Input Voltage | DC 7V ~ 12.6V |
| Interface | USB Type-C / UART |
| Servo Support | Up to 253 serial bus servos |
| Feedback | Position, speed, torque, operation mode |
| Board Size | 42.00mm × 33.00mm |
| Mounting Holes | 37.00mm × 28.00mm (matches SO-ARM) |
| Compatible Servos | Most mainstream serial bus servos |
| Host Platforms | Raspberry Pi, NVIDIA Jetson (Nano/Orin/Xavier), RDK, PC, Orange Pi |
Quick Start
3-Step SO-ARM Installation
- Align the driver board with the mounting holes on the SO-ARM 3D-printed base
- Secure with the included M2.5 screws
- Connect servo bus cable, power, and Type-C USB to the controller
Power Adapter Selection
| Adapter | Use Case |
|---|---|
| 5V 6A | Standard bus servo projects, SO-ARM arms (7V standard servos) |
| 12V 5A | High-torque servo projects, multi-servo robots (12V) |
Supported Platforms
- ✅ LeRobot SO-ARM100/101 development
- ✅ LeKiwi robot arm development
- ✅ Multi-joint robots (quadruped/hexapod, humanoid)
- ✅ Embodied AI training & closed-loop control
- ✅ Educational robotics
- ✅ Custom servo-driven robot prototypes
FAQ
Q: Which servos are supported?
A: Almost all mainstream serial bus servos (Feetech SCS/STS series, etc.).
Q: Do I need separate drivers?
A: No. Type-C connects to the host with plug-and-play servo control and data feedback.
Q: What is TVS protection for?
A: Prevents voltage spikes from damaging the board and servos, ensuring stable operation in complex environments.
Q: Which power adapter?
A: 5V 6A for standard servos, 12V 5A for high-torque servos.
Support
- 📧 Email: support@juxitech.com
- 🌐 Website: www.juxitech.com
- 💬 Report Issues

