How can I detect BLE Scan Requests?

RE: How can I detect BLE Scan Requests?

Hieu — Tue, 04 Jun 2024 12:45:57 GMT

Hi gero,

A device in the Observer role is usually not interested in the Scan Request of other Observer, so the stack does not pass such scan result up to the application layer.

Why are you interested in this?

If you really need to detect Scan Request from Observers, you can setup an Advertiser on your device, and get the data from the scanned callback.

RE: How can I detect BLE Scan Requests?

gero — Mon, 03 Jun 2024 13:07:51 GMT

Hi Hieu,

I am aiming for the first option. I would like it to function as a central device and pick up on scan request packets sent out by nearby devices.

RE: How can I detect BLE Scan Requests?

Hieu — Mon, 03 Jun 2024 10:29:59 GMT

Hi gero,

Which of the following scenario are you trying to get your board to do?

As a central device, scans and detects Scan Request packets from other Central/Observer devices
As a central device, sends Scan Request and gets Scan Response advertising packets from advertisers
As a peripheral device, detects Scan Request packets from other Central/Observer devices

Are you new to Bluetooth Low Energy (BLE) in general, or only to nRF boards?
If you are new to BLE in general, I recommend checking out our free online course Bluetooth Low Energy Fundamentals

Hieu