---
product_id: 734177156
title: "Serial Bus Servo Driver Board, Integrates Servo Power Supply and Control Circuit, for ST/SC Series Serial Bus Servos, Supports 253 ST/SC Series Serial Bus Servos at the Same Time"
brand: "wonrabai"
price: "€ 20.34"
currency: EUR
in_stock: false
reviews_count: 5
category: "Wonrabai"
url: https://www.desertcart.pt/products/734177156-serial-bus-servo-driver-board-integrates-servo-power-supply-control
store_origin: PT
region: Portugal
---

# Supports dual power inputs for flexible integration Seamless UART & USB communication for rapid prototyping Controls up to 253 ST/SC serial bus servos simultaneously Serial Bus Servo Driver Board, Integrates Servo Power Supply and Control Circuit, for ST/SC Series Serial Bus Servos, Supports 253 ST/SC Series Serial Bus Servos at the Same Time

**Brand:** wonrabai
**Price:** € 20.34
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power your robotics revolution with unmatched control and flexibility!

## Quick Answers

- **What is this?** Serial Bus Servo Driver Board, Integrates Servo Power Supply and Control Circuit, for ST/SC Series Serial Bus Servos, Supports 253 ST/SC Series Serial Bus Servos at the Same Time by wonrabai
- **How much does it cost?** € 20.34 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/734177156-serial-bus-servo-driver-board-integrates-servo-power-supply-control)

## Best For

- wonrabai enthusiasts

## Why This Product

- Trusted wonrabai brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Power Supply Options:** Choose between DC5521 jack or screw terminal for ultimate project flexibility
- • **Plug & Play USB Interface:** Instantly connect and control servos via USB, accelerating your development cycle
- • **Massive Multi-Servo Control:** Command an army of 253 servos with precision and ease
- • **Universal UART Compatibility:** SDK support ensures smooth integration across diverse hardware platforms
- • **Comprehensive Online Resources:** Access tutorials and development guides to get your project moving fast

## Overview

The Wonrabai Serial Bus Servo Driver Board integrates power supply and control circuits to manage up to 253 ST/SC series serial bus servos simultaneously. Featuring dual power input methods (DC5521 jack and screw terminal), it supports UART and USB communication modes with an ARMv7 CPU, enabling seamless control and real-time feedback. Ideal for advanced robotics and mechatronics projects, it comes with SDKs and online tutorials to accelerate prototyping and integration.

## Description

Serial Bus Servo Driver Board, Integrates Servo Power Supply and Control Circuit, for ST/SC Series Serial Bus Servos, Supports 253 ST/SC Series Serial Bus Servos at the Same Time : desertcart.co.uk: Business, Industry & Science

Review: I gave this board to the robotics/mecatronics club at my middle school. The librarian has been testing it for a few weeks now and gave me a demo. I can confirm that it works great out of box, exactly as described. It offers a lot of versatility across a variety of projects and for $16 is priced really competitively.
Review: Works pretty much as stated. The jumper move around can be a pain and might leave you scratching your head on what is going on. The waveshare library also has the wrong pins stated for the esp

## Features

- Compatible Servos--- Supports ST/SC series bus servos, and can directly power the servos via DC power jack, supports selecting power supply input according to the servo used
- UART serial bus control--- Allows controlling up to 253 SC/ST series serial bus servos at the same time, supports receiving the operating status and various information feedback of each servo
- Two Power supply methods--- Onboard DC5521 power jack and screw terminal for easy integration into existing projects. Supports UART and USB control--- Switching the control mode by selecting A or B via the jumper
- Suitable for more Applications via UART--- Supports directly controlling the serial bus servo via UART communication, and provides SDK which is compatible with various hardware platforms, please refer to the product's Online Wiki for more details
- Easy to use with USB control----Connect the driver board to the host via a USB cable to easily control the serial bus servo and receive data feedback, speeding up the project prototyping process
- Comes with Online Tutorial and Development Resource, Please check: n9.cl/rs537

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CTMM4LWK |
| Best Sellers Rank | 80,677 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 150 in Motor Drivers |
| Box Contents | Bus Servo Adapter (A) x1 |
| Brand Name | Wonrabai |
| CPU Model | ARMv7 |
| Compatible Devices | ST/SC series bus servos |
| Country of Origin | China |
| Customer Reviews | 4.8 4.8 out of 5 stars (23) |
| Item Dimensions L x W x H | 42L x 33W x 42H millimetres |
| Manufacturer | Wonrabai |
| Model Name | Wonrabai Servo Driver Board |
| Network Connectivity Technology | USB |
| Operating System | Linux |
| Processor Brand | ARM |
| Processor Count | 1 |
| RAM Memory Technology | DDR |
| Total USB Ports | 1 |

## Product Details

- **Brand:** Wonrabai
- **CPU model:** ARMv7
- **Connectivity technology:** USB
- **Included components:** Bus Servo Adapter (A) x1
- **Model name:** Wonrabai Servo Driver Board

## Images

![Serial Bus Servo Driver Board, Integrates Servo Power Supply and Control Circuit, for ST/SC Series Serial Bus Servos, Supports 253 ST/SC Series Serial Bus Servos at the Same Time - Image 1](https://m.media-amazon.com/images/I/718EsdAJJzL.jpg)
![Serial Bus Servo Driver Board, Integrates Servo Power Supply and Control Circuit, for ST/SC Series Serial Bus Servos, Supports 253 ST/SC Series Serial Bus Servos at the Same Time - Image 2](https://m.media-amazon.com/images/I/71a8S5lfz0L.jpg)
![Serial Bus Servo Driver Board, Integrates Servo Power Supply and Control Circuit, for ST/SC Series Serial Bus Servos, Supports 253 ST/SC Series Serial Bus Servos at the Same Time - Image 3](https://m.media-amazon.com/images/I/71N3zOv8UhL.jpg)
![Serial Bus Servo Driver Board, Integrates Servo Power Supply and Control Circuit, for ST/SC Series Serial Bus Servos, Supports 253 ST/SC Series Serial Bus Servos at the Same Time - Image 4](https://m.media-amazon.com/images/I/71LympPgVFL.jpg)
![Serial Bus Servo Driver Board, Integrates Servo Power Supply and Control Circuit, for ST/SC Series Serial Bus Servos, Supports 253 ST/SC Series Serial Bus Servos at the Same Time - Image 5](https://m.media-amazon.com/images/I/71RyaY8RA-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***Y on 14 January 2026*

I gave this board to the robotics/mecatronics club at my middle school. The librarian has been testing it for a few weeks now and gave me a demo. I can confirm that it works great out of box, exactly as described. It offers a lot of versatility across a variety of projects and for $16 is priced really competitively.

### ⭐⭐⭐⭐⭐ Review
*by N***Y on 10 January 2026*

Works pretty much as stated. The jumper move around can be a pain and might leave you scratching your head on what is going on. The waveshare library also has the wrong pins stated for the esp

### ⭐⭐⭐⭐⭐ Review
*by L***F on 9 September 2025*

Bon matos pour piloter des servos, c'est un circuit complet compatible avec pas mal de choses et comme d'habitude avec ce genre de matos, il faut aimer le bricolage et dans ce cas précis la robotique. La marque, je connais, fait dans le très bon rapport qualité prix !

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-06-07*