BoardPilotSCT-013 split-core AC current clamp with ESP32
Supply 3.3 V
Bus ANALOG
Measures current
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| TIP | Not wired to the ESP32 | — | 3.5 mm jack. AC output: needs a bias circuit (2 x 10 kΩ + 10 µF) before an ADC pin. -000 also needs a burden resistor |
| SLEEVE | Not wired to the ESP32 | — | 3.5 mm jack. Goes to the bias midpoint (about 1.65 V), not straight to GND |
Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.
Sources
- YHDC SCT-013 datasheet, SCT-013-000: 100 A : 50 mA current output, no burden; -030: 30 A / 1 V with built-in burden
- OpenEnergyMonitor CT sensor guide, Burden resistor and DC bias for a single-supply ADC
Try it in 3D in BoardPilot
Related parts
4-20 mA to voltage converter module (HW-685)49E linear hall sensor (SS49E)ACS712 current sensor moduleACS723 current sensor moduleACS758 high-current sensor module (50-200 A)AD8232 ECG heart monitor
Part data: CC BY 4.0, free to reuse with credit to BoardPilot.