I'am using a blueNRG2 BLE MCU and i am realizing a beacon BLE. I know how to set data packet , advertising address etc but scanning by smartphone i noticed that there is a parameter Device UUID that is not setted by me.Is it specific for any ST BLEdevice?

[ASpar.1]

or there is a way to set it by me?

[Winfred LU]

In the case of iBeacon, there is a proximity UUID in the advertising data, used as a recognition to your device/beacons.