| Feather MO WINC1500 | Feather 32u4 RFM95 LoRA | Comment |
| GND | GND |
|
| SCL | SCL | Needs a pull-up resistor on the SCL line (4.7 kOhms connected to 3 V) |
| SDA | SDA | Needs a pull-up resistor on the SDA line (4.7 kOhms connected to 3 V) |
| Power (USB) | Power (USB) | The USB connection provides 5 V DC. |