[Free][Windows only] UE4Duino 2 - Arduino (COM port) communication

I don’t know if it is because of the translation, but you were missing some things there.
You’ll need:

  • 1 Arduino connected to the PC. This Arduino must have a Bluetooth module configured as receiver.
  • 1 Arduino not connected to the PC. This Arduino also has a Bluetooth module, but configured as sender. And it would be the one that gets the input to send it to the other Arduino (the receiver).

Input would be sent from the sender Aduino to the receiver one and the receiver one would send it to Unreal.