BoardPilotHalf-bridge load cell 50 kg (3 wires) with ESP32
Supply 3.3-5 V
Measures weight
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| RED | Not wired to the ESP32 | — | Centre tap: signal. Colours vary: the two outer wires show the highest resistance between them |
| BLACK | Not wired to the ESP32 | — | Outer end: excitation |
| WHITE | Not wired to the ESP32 | — | Outer end: excitation |
Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.
Sources
- Avia Semiconductor HX711 datasheet, Needs a full bridge: use 2 or 4 half-bridge cells, or add 2 matching resistors
Try it in 3D in BoardPilot
Related parts
Part data: CC BY 4.0, free to reuse with credit to BoardPilot.