BoardPilotMini submersible water pump 3-5 V with ESP32
Supply 3-5 V
Bus GPIO
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| + | Not wired to the ESP32 | — | Red wire. Switch it with a MOSFET or relay: draws more than a GPIO can give |
| - | Not wired to the ESP32 | — | Black wire. Add a flyback diode across the motor |
Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.
Sources
- Mini submersible pump (vendor datasheet), DC 2.5 to 6 V, about 130 to 220 mA
Try it in 3D in BoardPilot
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Part data: CC BY 4.0, free to reuse with credit to BoardPilot.