A FT-232 USB to serial board is used to program the Arduino. A standard Bluetooth module has to have HID firmware installed. [Dastardly] makes a homemade daughterboard–er, shield–to connect ...

It’ll be a little tricker to decipher the plug detection scheme ... trace leading to the Bluetooth interface module and soldered a wire so the switch now pulls an Arduino pin to ground when ...

In Arduino environment ... and connect to your Edison module 3. Enter the PIN code, the default PIN is 8888, feel free the change it later at line 70 of bluetooth-pin-service.py 4.