Which Bluetooth modules work for me?

VMAGG

Hello, I am looking at all the modules you have available, but I am not quite sure which ones would suit my needs.

I'm looking for a Bluetooth module for audio with the following requirements:

Control communication via UART
I2S audio support
Bidirectional audio (support for sending audio to headphones and receiving audio from headphone microphones) -> HFP-AG protocol
Low energy consumption (maximum 40mA peak).
Support for A2DP and HFP-AG (Hands Free Protocol)
Optional: Support for LE Audio (LE3)
Optional: aptX

I have tested the FSC-BT1058 and although it seems to be valid, it is very expensive.
I have an FSC-BT1035 waiting to be tested and, on the other hand, I have tested an FSC-BT1026 but it does not seem to support the HFP-AG protocol.

I can't find the programming user guide for other modules, and that's the only place I've seen where all the compatible profiles are actually specified.

The modules I am currently considering are:

FSC-BT2054RI
FSC-BT1211
FSC-BT966

Could you please tell me which of the above modules would meet my requirements?

Thank you in advance.

FAE_Gavin

VMAGG Thank you for your detailed inquiry. We have evaluated your requirements against the modules in question, and here is our conclusion:

1.Regarding the modules you mentioned:

FSC-BT2054RI / BT1211: These are secondary development modules. While we provide a complete Bluetooth protocol stack SDK, they require significant embedded programming and application integration on your host side, which involves a higher development threshold and longer cycle.
FSC-BT966: This model is nearing end-of-life and does not fully meet your functional requirements (especially regarding HFP-AG support). Therefore, it is not recommended.

2.Primary Recommendation
To meet all your core requirements (UART control, bidirectional I2S audio, HFP-AG protocol, low power consumption, etc.) in a ready-to-use manner, the FSC-BT1058 is currently the only model in our portfolio that is a perfect match.

3.Cost-Effective Alternatives
If your project allows some flexibility in the audio interface, the following SOC modules also support UART control and HFP-AG bidirectional calling, offering better cost efficiency:

FSC-BT1114QI: Transmits audio via the USB Audio interface.
FSC-BT1035: Outputs audio via an analog audio interface.

4.Datasheets
For further details, please refer to the datasheets below: