nRF5340 LE Audio: BIS switching

[gocchan]

Hello, 

I am developing an application based on the sample project "nrf5340_audio" and would like to be able to select which gateway signal the headset receives when there are multiple gateways.

Is there an API to switch the target gateway of BIS?

Or, is there a message sequence from discovering the gateway to establishing the BIS? We are thinking of realizing a switching function by retaining the information of discovered gateways.

Regards, 

Gotoda

[Maria Gilje]

Hello Gotoda,

This should be possible, but I need some more time to find out if there is an existing API for gateway switching.

Thank you for your patience.

Kind Regards,
Maria

[Maria Gilje]

Hello again,

I have not found an existing API for gateway switching, but I will search some more.

Thank you for your patience.

Kind Regards,
Maria

[Maria Gilje]

Hi,

bt_audio_broadcast_sink_scan_start() may help to scan for available gateways.

You can also add the gateway you want to connect to to a whitelist. This thread may be of some help here.

I am happy to help more and maybe test some configurations after the weekend.

Kind Regards,
Maria

[gocchan]

Hi, 

Thank you, I'll refer to the function and the thread.

Is there a function for establishing BIS?

Regards, 

Gotoda

[Maria Gilje]

Hi,

gocchan said:

Thank you, I'll refer to the function and the thread.

Great!

gocchan said:

Is there a function for establishing BIS?

You can find all Bluetooth related code relating to BIS in the files le_audio_bis_gateway.c and le_audio_bis_headset.c from the nRF5340 Audio application.

Kind Regards,
Maria