The technology you use impresses no one. The experience you create with it is everything.
- Sean Gerety
In the last chapter, we brewed our very own indoor positioning system by using nothing more than a smartphone, an iTag, and a few brilliantly written research papers. Building on our knowledge about discovering and connecting with Bluetooth Low Energy devices from the previous chapters, we discovered that apart from services and characteristics, there is much more that Bluetooth Low Energy has to offer; for instance, we used RSSI to extract relevant information from a Bluetooth Low Energy device by converting it to proximity/distance. This chapter is a little different from the previous ones. Building on our knowledge of implementation details that we gathered in the previous chapters, rather than introducing a new implementation detail, this chapter introduces the reader to a completely new class of Bluetooth Low Energy devices, that is, Beacons.
We will...