Filtering based on 128 bit uuid using whitelist

[Ignacio]

Hi there,

@Simonr, I need further help on this case 

https://devzone.nordicsemi.com/f/nordic-q-a/58464/filtering-based-on-128-bit-uuid

It is said that it is possible to use " a whitelist that holds the UUIDs you want to scan in order to filter these beacons".

To add these UUIDs to the whitelist it recommends to use sd_ble_gap_whitelist_set. However this funtion only accepts a list of the ble_gap_addr_t structure.

This structure is defined as follows:

uint8_t addr_id_peer: 1

uint8_t addr_type: 7

uint8_t addr [(6)]

I dont's see the way to fit a 128-bit UUID there. So, the question remains. Is it possible to filter scan packages using a 128-bit UUID? If yes, how?

Thanks!

[Simonr]

Hi

One of our previous colleagues, Jimmy, made a very good blog post here on how to do BLE scanning with Whitelist using the nRF5 SDK. Amongst other things it explains how to use UUIDs by setting and using the UUID filter type.

Best regards,

Simon

[Ignacio]

Thanks for the information. I could not see any related information on how to filter 128-bit UUID. 

I repeat my query. Please be specific in your reply.

I want to either use scan filter or whitelist to filter 128-bit UUID

Is it possible to filter scan packages using a 128-bit UUID? If yes, how?