ibeacon, how you decide to uuid as major, minor?

[GunMin]

If I want to recognize the specific beacon device in the smartphone app, how to read a specific uuid as major, minor beacon in the application?

I know the uuid with a unique identifier.

If yes, what is the role of a major and a minor is?

Do I need to set a specific uuid in smartphone applications?

If the product has several, how do you classify the uuid?

[Hung Bui]

@GunMin: You should have a look at the iBeacon specification. You would need the MFI license to have access. Here is a document on getting started with iBeacon.

In our ble_app_beacon example, you can find the structure of the advertising packet for our beacon in the m_beacon_info[] structure. Major value and minor value are the 4 bytes follow the 16 bytes beacon UUID in the manufacturer data in the advertising packet.

[GunMin]

Thank you Hung Bui.

UUID, Major, Minor amount of the accounts for most of the size of the Packet that send a Beacon.

I would like to send the information about the temperature and battery level.

Can I change the size of the packet?