Bluetooth Hands Free Question - Absolute NOOB


I apologise in advance for this novice question, but i have searched for 24hrs across many forums for a clear cut answer, but now im just totally confused.

I what to create a custom Android headunit with DB820c board, i currently researching to make sure everything is possible before investing.

1 key feature is Bluetooth hands free, now im aware this board has a Bluetooth chip, but this is where im confused, is there settings in ASOP OS to turn the DB820c Bluetooth chip into HFP mode?

I have several android devices and i cant see any settings to make a device a master / slave so to speak.

Good luck getting your hands on a DB820C…

As far as your objective…

PM me if you’re interested in the board.