Waveshare ESP32 Serial Bus Servo Driver Expansion Board

The Waveshare ESP32 Serial Bus Servo Driver Expansion Board is a compact robotics controller designed to drive SC and ST series serial bus servos. Equipped with onboard Wi-Fi, Bluetooth, and ESP-NOW support, it enables wireless control, debugging, and real-time telemetry feedback. It is an ideal platform for makers, students, and educators developing advanced multi-servo robotics projects.

Comprehensive serial bus servo control

The board can control up to 253 SC and ST series serial bus servos simultaneously when supplied with adequate power. It reads real-time operating feedback including angle, load, voltage, and mode, while supporting ID programming and mode switching between servo and motor operation.

Wireless connectivity and host communication

Built-in Wi-Fi, Bluetooth, and ESP-NOW capabilities allow for remote operation and servo calibration through open-source web applications. Serial UART communication enables seamless integration as a lower-level controller linked to an upper host computer.

Power and hardware features

Featuring a Type-C download interface with an automatic download circuit, the board ensures straightforward firmware flashing. It accepts a wide 6V to 12V DC input via a 5.5 x 2.1 mm connector and includes an onboard OLED screen for displaying key status information.

Versatile robotics applications

Its compact 65 mm by 30 mm form factor allows easy integration into space-constrained builds. It is suitable for robotic arms, hexapods, humanoid robots, and wheeled platforms requiring angle and load feedback.