How to communicate the nRF5340 DK and the nRF5340 Audio DK over BLE.

[RajendraN]

Hi,

I am currently working on communicating between the nRF5340 DK and the nRF5340 Audio DK over BLE. Could you please share the information flow?

Warm regards,
Rajendra.

[Amanda Hsieh]

Hi, 

You can use the 'ACL' which runs alongside the ISO to control the stream as a regular BLE connection. Please be aware of the current limitation of Softdice Controller concurrently supporting 2 ISO + 2 ACLs, which means you could do 2 ACL + 2 BIS, or 2 CIS (since 1 CIS requires both 1 ACL and 1 ISO).

See an example of how quickly/easily additional services can be added to the nRF5340 Audio reference application here.

Regards,
Amanda H.

[RajendraN]

Hi amanda,

I am a beginner at Nordic. Could you please give me more information and any source code or video communication.

Warm Regards,
Rajendra.

[RajendraN]

Hi Amanda,

I am working on the 2.6.0 SDK. But the given sample is 2.3.0 SDK. I tried to build the above but got the below errors.


$ python buildprog.py -p -c both -b release -d both
+-----------+----------+---------+--------------+---------------------+---------------------+
| snr | snr conn | device | only reboot | core app programmed | core net programmed |
+-----------+----------+---------+--------------+---------------------+---------------------+
| 682270930 | ←[32mTrue←[0m | headset | Not selected | Selected TBD | Selected TBD |
| 1000 | ←[33mFalse←[0m | gateway | Not selected | Selected TBD | Selected TBD |
| 1000 | ←[33mFalse←[0m | headset | Not selected | Selected TBD | Selected TBD |
+-----------+----------+---------+--------------+---------------------+---------------------+
Invoking build step
Net core uses precompiled hex
Run: west build C:\ncs\sdk-nrf-iso_peripheral_example\applications\nrf5340_audio -b nrf5340_audio_dk_nrf5340_cpuapp -d C:\ncs\sdk-nrf-iso_peripheral_example\applications\nrf5340_audio\build\dev_headset\build_release
ERROR: Build directory "C:\ncs\sdk-nrf-iso_peripheral_example\applications\nrf5340_audio\build\dev_headset\build_release" is for application "C:\Users\DELL\Downloads\sdk-nrf-iso_peripheral_example\applications\nrf5340_audio", but source directory "C:\ncs\sdk-nrf-iso_peripheral_example\applications\nrf5340_audio" was specified; please clean it, use --pristine, or use --build-dir to set another build directory
FATAL ERROR: refusing to proceed without --force due to above error
Traceback (most recent call last):
File "C:\ncs\sdk-nrf-iso_peripheral_example\applications\nrf5340_audio\tools\buildprog\buildprog.py", line 406, in <module>
__main()
File "C:\ncs\sdk-nrf-iso_peripheral_example\applications\nrf5340_audio\tools\buildprog\buildprog.py", line 389, in __main
__build_module(build_cfg, options)
File "C:\ncs\sdk-nrf-iso_peripheral_example\applications\nrf5340_audio\tools\buildprog\buildprog.py", line 149, in __build_module
raise Exception("cmake error: " + str(ret_val))
Exception: cmake error: 1

NOTE: I need BLE client on nrf5340 Audio dk

Warm Regards,
Rajendra.

[Amanda Hsieh]

Check out this post  nRF5340 Audio - configure gateway unit also as ACL peripheral  

We are currently understaffed due to the summer vacation period, so delayed replies must be expected. I am sorry about any inconvenience this might cause.

[RajendraN]

Hi Amanda Hsieh,

Issue: Mismatched Service UUIDs in BLE Communication Between nRF5340 Audio DK and nRF5340 DK

I have tried to establish BLE communication between the nRF5340 Audio DK and nRF5340 DK, but the services are not matching.
The nRF5340 Audio DK uses a 16-bit service UUID, while the nRF5340 DK uses a 128-bit service UUID.
This discrepancy is preventing successful communication between the two device.

Warm Regards,
Rajendra

[Amanda Hsieh]

What service did you add to the audio application? 

What service would you want to connect on the nRF5340DK?

[RajendraN]

Hi Amanda,


Thanks for response,

I'm successfully communicating between the nRF5340 DK (GATEWAY) and the nRF5340 Audio DK (HEADSET) over BLE.
However, when I try to share the audio stream from the GATEWAY to the HEADSET, I'm getting a beep or sinusoidal sound on the nRF5340 Audio DK.

How can I correctly transmit the audio data to the nRF5340 Audio DK.

Could you please guide me on this.

NOTE: ADDED EXTERNAL MIC ON NRF5340 DK


Warm Regards,
Rajendra.

[RajendraN]

Still waiting here

[Amanda Hsieh]

Hi, 

The latest issue is away from the original issue. Please create a new support case. 

-Amanda H.

[Lalith.K]

Hi Rajendra,

I'm too trying to configure nRF5340 DK as a GATEWAY as my other device is a nRF5340 AUDIO DK running as a HEADSET. I tried in many ways but, I failed to configure the nRF5340 DK as a GATEWAY. Its good to know that you are successful in the attempt. Could you tell me the sample file you used for this? I tried with central_uart BLE sample but, it was of no use. 

Please guide me on this. 

Thanks & Regards,

Lalith.