How to Filtering based on 128 bit uuid in softDevice layer

RE: How to Filtering based on 128 bit uuid in softDevice layer

kathy huang — Fri, 27 Oct 2023 08:24:55 GMT

Hi Einar,

Thanks for your reply. I see and the instance you recommended is very useful.

Best Regards,

kathy

RE: How to Filtering based on 128 bit uuid in softDevice layer

Einar Thorsrud — Fri, 27 Oct 2023 06:53:23 GMT

Hi Kathy,

No, filtering on UUID has to be done in the application. You do not have to implement it yourself though, as the Scanning Module support filtering on UUID, so you can use that. This is demonstrated in several SDK examples, for instance the BLE Running Speed and Cadence Collector Example.

Einar

RE: How to Filtering based on 128 bit uuid in softDevice layer

kathy huang — Fri, 27 Oct 2023 01:25:21 GMT

Hi Einar,

Thank you for your reply. I understand the concept. Is there another way to achieve my goal of filtering by UUID before the application layer? Thank you very much."

Best Regards,

Kathy

RE: How to Filtering based on 128 bit uuid in softDevice layer

Einar Thorsrud — Mon, 23 Oct 2023 11:41:48 GMT

Hi Kathy,

The SoftDevice can only filter on the Bluetooth address by whitelisting (either the address itself or via IRK for devices u sing privacy, which all modern phones do). Any other form of filtering has to be done on the application layer.

Einar