Powered by the XIAO ESP32-C3, this compact Bus Servo Adapter provides seamless UART control over ST/SC series servos. Ideal for any robotics project, its pocket-sized design and easy installation enable you to build and control dynamic systems in just minutes. Build smarter and move precisely—begin dictating motion immediately!
Feature
Note: Early Build provides beta products (featuring 3D-printed cases) and evolving software before final release. We welcome your feedback and suggestions to shape the product's evolution. Enjoy exploring!
- ST/SC Servo Control by UART：
Powered by XIAO ESP32-C3 , you can directly drives ST/SC bus servos (require sufficient power) via UART while powering them with 5–12V through a robust 2P 3.5mm screw terminal, ensuring load-synchronized operation.
- Pocket-Sized Agility & Quick-Mount：
Ultra-compact 42mm × 25mm footprint with protruding side flanges featuring reinforced mounting holes, enabling rapid screw-based installation in embedded projects.
- Versatile Applications - Robotic Arm, Hexapod Robot, Humanoid R obot：
Orchestrate complex kinematics like 6-DOF robotic arms, hexapods, or bipedal robots. Offers demo-ready compatibility with popular kits like the SO-ARM101 Low-Cost AI Arm —ideal for AI vision projects and educational prototyping.
- Open- S ource for Custom Development：
Full Arduino IDE support enables bespoke motion programming, while the 3D-printed enclosure is open source, providing a starting point to customize your casing design.
Specification
| Parameter | Description |
| MCU | |
| Input Voltage Range | 5-12V DC (dependent on servo voltage) |
| Communication Protocol | Serial bus protocol (compatible with ST/SC servos) |
| Compatible Servo Types | ST/SC series serial bus servos |
| Servo Control Quantity | Multiple |
| Control Interface | UART / USB |
| Power Supply Interface | 2P 3.5mm screw terminal |
| Servo Interface | 3P 2.5mm terminal |
| Dimensions | 42mm x 25mm |
| Weight | 15g |
| Operating Temperature | 10°C ~ 60°C |
FAQs
Q: How do I power the Bus Servo Driver Board?
A: Connect the power supply via the onboard 2P 3.5mm screw terminal. The input voltage range is 5-12V DC, which must match the rated voltage of the servos used and provide sufficient current to support all connected servos during operation.
Q: How do I connect servos and control devices to the board?
A: Servos are connected to the driver board via the 2.5mm 3P terminal, ensuring proper wiring (power, ground, signal lines). Control devices can be connected to a computer via the USB interface or to a microcontroller via the UART interface, with the specific mode determined by the jumper settings.
Q: How many servos can this driver board control?
A: It can control multiple ST/SC series serial bus servos, with the exact number depending on the power supply capacity and bus load conditions. Theoretically, it supports a large number of servos working together.
Hardware Overview
Note: If you'd like to control the bus servos via USB Type-C, you can purchase Bus Servo Driver Board for Seeed Studio XIAO !
Application
- Supports serial bus servo driving for robotic arms
- Enables servo control in hexapod robots
- Provides servo driving for humanoid robots
- Assists wheeled robots with servo support
- Facilitates servo use in DIY and educational projects
| HSCODE | 8503001000 |
| USHSCODE | 8503003500 |
| UPC | |
| EUHSCODE | 8471707000 |
| COO | CHINA |
Part List
| XIAO Bus Servo Adapter | ×1 |