M5Stack 8Servo
Use the M5Stack 8Servo unit (based on STM32F030) with any ESP32 board for a compact 8-channel servo setup.
Hardware
- ESP32 development board (or M5Stack core)
- M5Stack 8Servo unit
- Up to 8 servos
- 5–6V power supply for the servo unit
Wiring
| Connection | ESP32 Pin | 8Servo Unit |
|---|---|---|
| SDA | GPIO 22 (default) | SDA |
| SCL | GPIO 23 (default) | SCL |
| GND | GND | GND |
Connect servos to the output channels on the 8Servo unit. Power the unit with 5–6V.
Libraries
No additional libraries required — the sketch communicates with the STM32F030 over I2C using direct register writes.
Configuration
- Servo channels: 8 (IDs 1–8)
- I2C address: default M5Stack 8Servo address
- I2C pins are configurable in the sketch (default SDA=22, SCL=23)
- Device name can be customized in the sketch