BoardPilotCC1101 sub-GHz radio module with ESP32
Supply 3.3 V
Bus SPI
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| GND | Ground | GND | |
| VCC | Power | 3V3 | 3.3 V only. Never 5 V |
| GDO0 | Interrupt | D35 | Configurable output (packet received / sent) |
| CSN | SPI chip select | D5 | SPI chip select |
| SCK | SPI clock | D18 | |
| MOSI | SPI MOSI | D23 | |
| MISO | SPI MISO | D19 | Also GDO1 |
| GDO2 | Interrupt | VP | Configurable output, optional |
Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.
Sources
- Texas Instruments CC1101 datasheet, 4-wire SPI interface; GDO0 and GDO2 configurable outputs; supply 1.8 to 3.6 V
- Common 8-pin CC1101 module pinout, GND, VCC, GDO0, CSN, SCK, MOSI, MISO/GDO1, GDO2. Order differs between boards: check the silkscreen
Try it in 3D in BoardPilot
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Part data: CC BY 4.0, free to reuse with credit to BoardPilot.