Uses of the UUID/major/minor broadcasting triplet
In the last chapter, we covered the reasons behind the broadcasting triplet; we're going to use the triplet with a more realistic scenario. Let's go over the three values again in some more detail.
UUID – Universally Unique Identifier
The UUID is meant to be unique to your app. It can be spoofed, which we'll cover in Chapter 9, iBeacon Security – Understanding the Risks, but generally, your app would be the only app looking for that UUID.
The UUID identifies a region, which is the maximum broadcast range of a beacon from its center point. Think of a region as a circle of broadcast with the beacon in the middle.
If lots of beacons with the same UUID have overlapping broadcasting ranges, then the region is represented by the broadcasting range of all the beacons combined as shown in the following figure. The combined range of all the beacons with the same UUID becomes the region.
Broadcast range
More specifically, the region is represented by an...
