Does nrf5340 Audio DK support Bluetooth direction finding?

[Frey]

Hello,

I am a college student researching the application of BLE Audio. Our lab purchased some nrf5340 Audio DK boards to test BLE Audio. I see that 5340 SoC support direction finding, but there's no mentioning in the description of the board itself. Does the board have built in antenna array to make it work? If not, can we connect external antenna array to it?

Thank you for helping

[SwRa]

Hi Frey,

This is because LE Audio and Direction finding uses different controllers.. The controller used for Bluetooth have specific features.

The one we use for Bluetooth LE Audio supports ISOCHRONOUS channels but it does not support CTE (Continuous Tone Extension) needed for Direction Finding. The controller used for Direction Finding supports CTE but does not support ISOCHRONOUS channels and to do both at the same time you need a controller supporting both at the same time.

In addition, the LE Audio requires updates to the datalink layer in the current version, compared to older versions of the standard.

Best Regards,

Swathy