DC motor (small, 3-6 V) with ESP32
Supply 5 V
Bus GPIO
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| M+ | Not wired to the ESP32 | — | Never connect to an ESP32 pin: use a motor driver or a transistor |
| M- | Not wired to the ESP32 | — | Swap the wires to reverse the direction |
Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.
This module is sold for 5 V. Its outputs may be 5 V: use a level shifter or a voltage divider on ESP32 inputs.
Sources
- Espressif ESP32 datasheet, GPIO drive strength is far too low for a motor (about 40 mA max)
Try it in 3D in BoardPilot
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Part data: CC BY 4.0, free to reuse with credit to BoardPilot.