Product details

Servo Driver with ESP32

Robot Control Boards and Computing Components

Waveshare

Servo Driver with ESP32

About this product

Waveshare Servo Driver with ESP32 is a compact programmable robot controller for SC/ST serial bus servos. Its onboard OLED, wireless web interface and UART host link support robot arms, hexapods and other mechanisms that need servo feedback. It can configure servo IDs and operating modes and read operating information. The theoretical 253-servo capacity requires adequate power, and its 6–12 V supply must match the connected servos. Motors and host computers are separate; commercial availability and release date are unverified.

Model
Servo Driver with ESP32
Category
Robot Control Boards and Computing Components, Components

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Antenna

Onboard PCB antenna

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Onboard PCB antenna

Board dimensions

30 × 65 mm

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Dimensions 30 × 65mm

Control interface

UART

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Control interface UART

Controller

ESP32

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Controller ESP32

Default demo id scan range

0–20

Manufacturer specification

Configuration: Servo Driver with ESP32; Factory/example program behavior, not a hardware bus-address limit. Requires firmware modification to scan IDs above 20.

Servo Driver with ESP32 - Waveshare Wiki
The driver board will automatically scan the servo ID (0-20) when it is powered on (in order to save the boot time). If your servo ID is more than 20, you must change the MAX_ID value in ServoDriverST.ino and upload it to the driver board again.

Download connector

USB Type-C

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Download interface Type-C

Esp-now control roles

Leader and follower

Manufacturer specification

Configuration: Servo Driver with ESP32; Provided ST demo feature; target MAC address must be configured in firmware. Does not imply autonomous robot operation.

Servo Driver with ESP32 - Waveshare Wiki
Leader key, set the servo driver board as the host, in this mode, the driver board continuously sends the ID, position, and speed of the current Active ID servo to the driver board of the controlled slave through the ESP-NOW protocol.

Firmware download

Automatic download circuit

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Automatic download circuit for easy uploading programs

Host/servo control functions

Servo ID and mode programming; angle, load, voltage and mode feedback

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

Servo Driver with ESP32 - Waveshare Wiki
This product supports the programming of servos to change the ID and working mode of the servos (servo mode/motor mode) in theory, it can control 253 bus servos and read the current angle, load, voltage, mode, and other information of each servo

Indicator expansion

RGB LED extension interface

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
RGB-LED extension interface

Mounting hole diameter

2.75 mm

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Mounting hole size 2.75mm

Mounting hole spacing

23 × 58 mm

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Mounting hole spacing 23 × 58mm

Power connector

5.5 × 2.1 mm DC jack

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Power supply connector 5.5 × 2.1mm DC

Serial-servo address capacity

253 servos

Manufacturer specification

Configuration: Servo Driver with ESP32; SC/ST series; theoretical address capacity, adequate external power required. Supply must match the servo voltage.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Allows controlling up to 253 SC, ST series serial bus servos at the same time (adequate power supply required)

Servo feedback

Position, speed, torque lock and operating mode

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
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

Servo voltage matching

Required

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
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.

Status display

Onboard OLED

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
OLED status monitor

Status indicator

RGB LED

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
RGB-LED indicator

Supply voltage

6–12 V

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Supply voltage DC 6-12V

Wireless communication

WiFi, Bluetooth, ESP-NOW

Manufacturer specification

Configuration: Servo Driver with ESP32; Manufacturer exact-model board specification. External motors, servos and host computers are not included in this board rating.

ESP32 Servo Driver Expansion Board, Built-In WiFi And Bluetooth, ESP32-WROOM-32, ESP32s | Servo Driver with ESP32
Built-in WiFi and Bluetooth, as well as ESP-NOW support, for remote control and servo debugging

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