scanning for broadcast messages from an un-bonded device

[samermattar]

Hi,

I want to scan for broadcast messages from a specific device that I never connect to (not bonded to for sure) and I want to filter out messages from other devices! 
to my understanding I can't add an un-bonded device to the whitelist! is this correct? and if so what is the best way to filter?

I'm using running on an nrf52832 and using SDK 11 with softdevice s132 v2.0.0!

Thanks,

[run_ar]

Hi,

Yes, you will not be able to add the device to the whitelist without having either the device address or IRK. But if you have one or both of this you can actually add the remote device to the whitelist if you use the SD functions directly. If you do not have these you need to parse every BLE_GAP_EVT_ADV_REPORT you get when scanning and try to find the correct device.

Regardless, I would recommend you use a newer SDK. Since you are on nRF52832 you can use SDK 17.0.2 and S 132 v7.

[samermattar]

well I do have the device address but I'm not paired/bonded to it! is it still possible to add it to the whitelist? because in the api of the peer manager I can't find how to add a MAC to the whitlelist that is not a peer! if you know a way to do this please tell me how.

Thanks.

[run_ar]

Take a look at sd_ble_gap_scan_start. This has the struct -ble_gap_scan_params_t with another struct ble_gap_whitelist_t. Peer manager fetches the content for the whitelist from the stored/bonded peers. You could modify the list before the call to sd_ble_gap_scan_start to include the known address. Or if you do not have any bonded peers that you need the peer manager to fetch, you could also use sd_ble_gap_scan_start directly.

[eshaul]

Thanks, I managed to do exactly that! 

I have created ble_gap_scan_params_t with ble_gap_whitelist_t, in it. now I can scan with a whitelist of non-bonded addresses.