Scanning with selective channel(s)

[Lars]

Hi,

I know that this question has been asked before but it seems like the answers are pretty old.

I have a need to scan on one channel only to receive advertisements, just like described here:

devzone.nordicsemi.com/.../

The advertising device is designed to send on one channel only and currently I seem to miss a lot of the packages sent.

I'm using nRF52840, S140 5.0.0-2.alpha and SDK 14.1.0

Is there now some way of doing this using the SDK features? If not, what may be the best way of accomplishing this?

Thanks!

[endnode]

No change so far, Nordic BLE stacks don't support this feature (yet?). You have obvious choices:

• Play with scanning interval and window parameters until you are happy. If not then you have more choices below.
• Wait until (if?) Nordic implement scanning on single channel in their SD.
• Use other BLE stack on nRF5x which supports it (I don't know any such stack but there might be some company having this and willing to license/sell it to you).
• Use open-source stack such as Zephyr and write the feature yourself (if not present).
• Write your own stack.

[Lars]

Thanks a lot for your swift answer! I will look into these options and see what I can accomplish.

[Lars]

I chose to download ble_app_proximity - Observer.zip posted by Hung Bui at devzone.nordicsemi.com/.../

With some minor tweaking (due to compile errors), it seems to work fine with S140. I also removed the increment of the channel variable in ll_scan.c to have it locked on channel 37.