Bluetooth audio transmission module needed

[Bryan.S]

I am looking for suggestions for a Bluetooth module for transmission of line level in audio dual channel. Need something simple that will automatically connect to a car radio like a cell phone does.
Something that can be controlled with Arduino code. Any help would be appreciated. There is a lot out there but I'd hate to buy a bunch of different ones for testing. Maybe someone has found one that works good.

Thanks

 

[defragster]

There is a thread from some time back where Bt was at hand for mouse/keyboards and the adapters that worked there are noted.

Don't recall any used for audio - but those that worked to pair and do something are noted there ...

Found it: pjrc.com/threads/49358-T3-6-USB-Host-Bluetooth

 

[jmarsh]

The USB host code currently doesn't have support for isochronous transfers, required for audio.

 

[Teenfor3]

What about using some of the Bluetooth audio boards/modules.....BC127 or RN52.....etc
Most of these work on I2S or analog audio and controlled via serial port and Bluetooth to portable bluetooth speakers etc

 

[JayShoe]

Phil Schatzmann has an audio library for the ESP32 which has a Bluetooth sender here https://github.com/pschatzmann/ESP32-A2DP


I have some example code integrating the ESP32 with the teensy with credit to Alex6679 here. https://github.com/JayShoe/esp32_T4_bt_music_receiver

I've only tested a receiver but transmission should be pretty easy.