RE: Use nRF54L15DK PCA10156 to test Bluetooth Channel Sounding

Elfving — Tue, 10 Jun 2025 11:21:38 GMT

Hello,

I am sorry to hear that. So you are using the latest tagged version of the nordic samples (ie. this and this, don't confuse them with the one directly from Zephyr)? Or are you using the main branch?

[quote user=""]accurate[/quote]

When it comes to accuracy it is worth noting that these samples aren't made to demonstrate the best accuracy you can find, but how to get eg. the I/Q values from which you can get the distance. You could always create your own algorithm for the rest, or purchase a third party one. Though with that said, how bad is it? I would recommend looking at IFFT for shorter distances and RTT for longer ones.

If you wonder about what sort of accuracy you should be able to achieve with BT Channel Sounding I would recommend having a look at this older webinar for the nordic distance toolbox (which is a proprietary older solution we have available for nRF52/53). It is based on a bit of the same technology as channel sounding, so the results should be similar but a bit better for channel sounding.

[quote user=""]and also echo such like warnings:[/quote]

Are these default unmodified samples? It looks to me as if one of them has modified its step mode, and there is a certain mismatch there.

Regards,

Elfving