Insert the Argon or Boron into the Ethernet Featherwing.
- Disconnect power, both battery and USB, before plugging in the device.
- You can use either of the two Feather sockets.
- Be sure to insert it the correct way! It will fit rotated 180° however this can permanently damage the device or Ethernet Featherwing.
- Also make sure you're not off by one pin, which is easy to do and can also damage the devices.