Bus Servo Driver Board for Seeed Studio XIAO
Bus Servo Driver Board for Seeed Studio XIAO has a 5-10 day lead time before dispatch. Order will only be sent once all items are available for delivery.
Bus Servo Driver Board for Seeed Studio XIAO
Bus Servo Driver Board for Seeed Studio XIAO is a serial bus servo driver built for controlling ST/SC series servos over UART or USB, designed to integrate directly with the Seeed Studio XIAO series. It's aimed at multi-servo robotics projects like robotic arms and multi-legged robots, where coordinated control across several servos matters more than driving a single motor.
What Is the Bus Servo Driver Board?
The board manages servos running on serial communication protocols such as ST/SC, converting commands into servo actions through onboard control circuitry. Unlike traditional PWM control, serial bus communication is more efficient and scales better across multiple servos, making it a better fit for robotics builds that need several coordinated joints rather than a single actuator.
Dual-Mode UART and USB Control
The board supports both UART and USB communication, switchable via an onboard jumper. UART suits embedded integration where the board is driven directly by a microcontroller, while USB mode is plug-and-play, useful for quick desktop debugging and PC-based control without extra wiring.
Multi-Servo Control with Feedback
Multiple ST/SC servos can be controlled from a single board, with angle and load feedback available, giving finer control over multi-degree-of-freedom projects than a basic single-servo controller allows. The exact number of servos supported depends on your power supply capacity and bus load.
Compact and Ready for Integration
At just 42mm x 25mm, the board stays compact enough for space-constrained robotics builds, with a 2P 3.5mm screw terminal for secure power connections and a 2.5mm 3P terminal for servo wiring.
Note that this expansion board isn't directly compatible with the XIAO nRF54L15 series, since Arduino isn't currently supported on that board. The hardware interface itself is fully compatible, so developers can manually adapt the software if needed, and official software support from Seeed Studio is in development.
Specifications
| Compatible Servo Types | ST/SC series serial bus servos |
| Servo Control Quantity | Multiple |
| Control Interface | UART / USB |
| Communication Protocol | Serial bus protocol (ST/SC compatible) |
| Input Voltage Range | 5-12V DC, dependent on servo voltage |
| Power Supply Interface | 2P 3.5mm screw terminal |
| Servo Interface | 2.5mm 3P terminal |
| Jumper Settings | UART/USB mode switching |
| Dimensions | 42mm x 25mm |
| Weight | 15g |
| Operating Temperature | 10°C to 60°C |
FAQ
How do I power the Bus Servo Driver Board?
Connect power through the onboard 2P 3.5mm screw terminal. Input voltage should be 5-12V DC, matching the rated voltage of your servos and providing enough current for all connected servos during operation.
How do I connect servos and control devices to the board?
Servos connect via the 2.5mm 3P terminal, with correct power, ground, and signal wiring. Control devices connect either over USB for PC-based control or over UART for microcontroller integration, with the mode set by the onboard jumper.
How many servos can this driver board control?
It can control multiple ST/SC series servos, with the exact number depending on your power supply capacity and bus load conditions.
What's the difference between USB and UART modes?
USB mode is plug-and-play, well suited to quick debugging and PC-based control. UART mode offers better real-time performance and suits embedded system integration. Choose USB for debugging, UART for embedded projects.
Resources
- Browse our full range of XIAO Development Boards
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