This table is taken from the pin assignment in variants/diy/nrf52_promicro_diy_tcxo/variant.h
| Pin | Function | Pin | Function | RF95 | |
|---|---|---|---|---|---|
| Gnd | vbat | ||||
| P0.06 | Serial2 RX | vbat | |||
| P0.08 | Serial2 TX | Gnd | |||
| Gnd | reset | ||||
| Gnd | ext_vcc | *see 0.13 | |||
| P0.17 | RXEN | P0.31 | BATTERY_PIN | ||
| P0.20 | GPS_RX | P0.29 | BUSY | DIO0 | |
| P0.22 | GPS_TX | P0.02 | MISO | MISO | |
| P0.24 | GPS_EN | P1.15 | MOSI | MOSI | |
| P1.00 | BUTTON_PIN | P1.13 | CS | CS | |
| P0.11 | SCL | P1.11 | SCK | SCK | |
| P1.04 | SDA | P0.10 | DIO1/IRQ | DIO1 | |
| P1.06 | Free pin | P0.09 | RESET | RST | |
| Mid board | Internal | ||||
| P1.01 | Free pin | 0.15 | LED | ||
| P1.02 | Free pin | 0.13 | 3V3_EN | ||
| P1.07 | Free pin |