iOS Bluetooth dual-mode; connect BLE (GATT) to an already connected BR/EDR (A2DP/HFP) stereo headset simultaneously

Question

I\'m developing a stereo headset with Bluetooth using the classic profiles (HFP, A2DP, AVRCP) as one would expect Ina stereo headset. However, I want to deploy a remote cont

Answer 1

I am also using the CSR8670 device. It have it working. Both a BLE peripheral and audio.

You need to be using ADK 4.0.0 by CSR.

Bluetooth 4.1 and Bluetooth 4.0 are different. For what you said about Bluetooth 4.0 is correct, but your chip can do Bluetooth 4.1.

4.1 allows such connections.

I also added "Dual mode" flags to the advertising packet.

There are a few conditions, such as a connection Interval of at least 90 miliseconds highly recommended so you dont mess with the audio.

Good luck!