BoardPilotEbyte E32 / E22 LoRa UART module with ESP32
Supply 3.3-5 V
Bus GPIO
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| M0 | Input (the ESP32 drives it) | D25 | Mode select with M1. Both LOW = normal mode. Never leave floating |
| M1 | Input (the ESP32 drives it) | D26 | Mode select. Both HIGH = configuration mode |
| RXD | Input (the ESP32 drives it) | D27 | UART: the part receives data here. Connect to an ESP32 TX pin (9600 baud by default) |
| TXD | Output (the part drives it) | D32 | UART: the part sends data here. Connect to an ESP32 RX pin |
| AUX | Output (the part drives it) | D33 | LOW while the module is busy. Wait for HIGH before sending |
| VCC | Power | 3V3 | Draws over 100 mA when sending at full power |
| GND | Ground | 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
- Ebyte E32-433T20D user manual, Pin definition (M0, M1, RXD, TXD, AUX, VCC, GND); operating modes
- Ebyte E22-900T22D user manual, Pin definition; same 7-pin order as E32
Try it in 3D in BoardPilot
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Part data: CC BY 4.0, free to reuse with credit to BoardPilot.