BoardPilot18650 Li-ion cell in holder with ESP32
Supply 3-4.2 V
Bus GPIO
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| + | Not wired to the ESP32 | — | 3.0 to 4.2 V. Too low for VIN and too high for 3V3: use a regulator |
| - | Not wired to the ESP32 | — | Cell -. Use a protected cell or a protection board |
Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.
Sources
- Samsung INR18650-25R datasheet, Nominal 3.6 V; charge 4.2 V; discharge cut-off 2.5 V
Try it in 3D in BoardPilot
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Part data: CC BY 4.0, free to reuse with credit to BoardPilot.