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- Stock: 53 in Stock
- SKU: 21593
- Delivery Time
- Bulk & B2B RFQ
This product is a bus servo control board based on ESP32 and we provide examples that can control bus servos through the WEB application. This product supports the programming of servos to change the ID and working mode of the servos (servo mode/motor mode), etc., in theory, it can control 253 bus servos and read the current angle, load, voltage, mode, and other information of each servo, and can use the serial port to communicate with the upper computer, which is used to build the lower computer of the robot project, and the on-board OLED The screen can be used to display key information and is suitable for robot projects such as robotic arms, hexapod robots, humanoid robots, wheeled robots, etc. that require feedback on the angle and load of the steering gear.
Features
- Allows controlling up to 253 SC, ST series serial bus servos at the same time (adequate power supply required)
- Wide range voltage input 6-12V (the input voltage and the servo voltage must be matched)
- Built-in WiFi and Bluetooth, as well as ESP-NOW support, for remote control and servo debugging
- Automatic download circuit for easy uploading programs
- Open source web applications and various robot structures
- Compact size and space-saving, suitable for integration into sorts of space-limited projects
Resources
Specifications
| Supply voltage | DC 6-12V(the input voltage and the servo voltage must be matched) |
| Controller | ESP32 |
| Control interface | UART |
| Download interface | TYPE-C |
| Power supply connector | 5.5*2.1mm DC |
| Dimensions | 65mm x 30mm |
Applications
- Servos will provide various feedback like position, speed, torque lock, operating mode (servo mode, servo motor mode, etc.) for advanced projects requiring closed-loop automatic control
- An ideal choice for building quadruped robots, hexapod walkers, robotic arms, and other robotic projects requiring multiple servos

Allows Controlling Up To 253 SC, ST Series Serial Bus Servos At The Same Time
Note: though one channel UART is able to control up to 253 bus servos, due to the high power of the servos, it is necessary to consider whether the power supply solution is enough when using too many servos.
The Input Voltage And The Servo Voltage Must Be Matched
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Note: The input voltage must match the servo voltage, e.g. when using the SC15 Servo with a voltage of 6-8.4V, the input voltage of the DC port of the drive board should also be within the same range of 6-8.4V.
Easy Secondary Development
Built-In WiFi And Bluetooth, As Well As ESP-NOW Support, For Remote Control And Servo Debugging
Onboard Peripherals

- ESP32 main controller
- Serial bus servo control interface
- OLED screen
- BOOT button to enter download mode
- Reset button
- TYPE-C connector
- Automatic download circuit
- RGB-LED indicator
- 5.5*2.1 DC power jack
- RGB-LED extension interface
- Onboard PCB antenna
- Serial bus servo control circuit
Package Includes

- Servo Driver with ESP32 x1
- Screws pack x1
Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)













