Does anyone have a recipe to setup a RPi 3 to use internal bluetooth simultaneously with a USB bluetooth dongle.
I am trying to build a long range bluetooth radio bridge. I have a class 1 USB bluetooth dongle with an external antenna that will get a couple of hundred metres to the remote device which also has class 1 BT TX/RX.
I want to build a gadget that:
> Using RPi built in bluetooth, connect to a local device close by
> Using the long range USB bluetooth stick, connect using different bluetooth channel to the remote device.
> Write an app that reads local => write to USB and reads USB => write to local. (pass through bridge)
I have succeeded in getting RPi built in bluetooth to connect using serial port service to the local device. I have some sample code in C++ that is reading the bytes from the built in RPi bluetooth.
I am struggling to get USB bluetooth adapter configured and setup as serial port or other data stream that I can read in my program.
If anyone has can share insight on how to configure USB bluetooth dongle to work simultaneously with built in bluetooth this would be helpful.