I am using Rock Pi 4 (I am having both 4B and 4C with me) for one of my project. I have a dedicated mobile application for my use.
I have done the configuration, settings, BLE operations like PowerOn, Advertisement of BLE, connect through mobile app (using bluetooth) and transfer data using the characteristics.
Now, I have to add the audio capability into it like, attend call, I can play a song and listen to the speakers attached to the RockPi and I can say something to RockPi mic and it’ll be listen on mobile.
I got the success in play the audio file on BT Speaker which is stored in RockPi.
Please guide me, help me.