---
product_id: 616236153
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: "6.86 OMR"
currency: OMR
in_stock: true
reviews_count: 13
category: "Wonrabai"
url: https://www.desertcart.com.om/products/616236153-serial-bus-servo-driver-board-integrates-servo-power-supply-control
store_origin: OM
region: Oman
---

# USB & UART control modes with SDK for rapid prototyping Supports dual power inputs for flexible integration 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:** 6.86 OMR
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Your Next-Level Robotics with Ultimate Control & 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?** 6.86 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/616236153-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 onboard DC5521 jack or screw terminal for seamless power integration.
- • **Massive Multi-Servo Control:** Manage an impressive 253 servos at once—scale your robotics effortlessly.
- • **Compact & Mount-Ready Design:** Small footprint (1.65" cube) fits perfectly in tight spaces and custom mounts.
- • **Versatile Communication Modes:** Switch easily between UART and USB control to fit your project needs.
- • **Developer-Friendly SDK & Tutorials:** Accelerate your build with comprehensive online resources and cross-platform support.

## Overview

The Serial Bus Servo Driver Board by Wonrabai integrates power supply and control circuits to support up to 253 ST/SC series serial bus servos simultaneously. Featuring dual power input options, USB and UART communication modes, and a developer-friendly SDK, this compact board (1.65 x 1.3 x 1.65 inches) is designed for seamless integration and rapid prototyping in advanced robotics and automation projects.

## Description

desertcart.com: 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 : Electronics

Review: Great serial servo driver - 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: Worked exactly as I expected - I am using it on my SO-ARM101 robot arm and have had zero issues. Very small which is great and mounts on SO-ARM101 are made for this board.

## 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 | #239 in Single Board Computers (Computers & Accessories) |
| Customer Reviews | 4.7 4.7 out of 5 stars (28) |
| Date First Available | January 31, 2024 |
| Item Weight | 0.634 ounces |
| Manufacturer | Wonrabai |
| Product Dimensions | 1.65 x 1.3 x 1.65 inches |

## 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great serial servo driver
*by N***Y on January 10, 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

### ⭐⭐⭐⭐⭐ Worked exactly as I expected
*by A***R on October 2, 2025*

I am using it on my SO-ARM101 robot arm and have had zero issues. Very small which is great and mounts on SO-ARM101 are made for this board.

### ⭐⭐⭐⭐⭐ Plug-and-play... Works great with an ESP32 w/ UART control!
*by J***T on September 7, 2024*

I've been dabbling in hobby robotics for a few months, but have previously been limited to standard RC servos. I needed more control for an animatronic project idea, and had the chance to try out an SC15 servo, but it needed a controller. This board was that controller. In all honesty, there's little to write about, because it just works - I set the jumpers to UART mode, plugged the pins into my ESP32's serial pins, connected 5.5V to the power posts, loaded up the Waveshare examples, and... voila! I had programmable servo control, and I was able to exercise both the control and feedback functions. The only thing that concerned me a little is that the sockets leading to the servo are a little tight, and the plastic shell started to work loose from the pins when I tried to remove the cable. However, I worked around that by loosening the cable slightly using a flathead screwdriver, before pulling it free. These are compact and effective boards at a great price - highly recommended!

## Frequently Bought Together

- Wonrabai 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
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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-02*