The IoT is a brand new world to explore for mobile developers. There is still no clear market leader, and different companies do the IoT their own way. One aspect of IoT that everybody agrees on is the fact that it is all about communicating with things, sometimes very far from a traditional computer or a mobile device. Those devices, gadgets, and sensors sometimes communicate using a traditional internet TCP/IP protocol, but in most cases they use protocols optimized for low energy consumption and IoT use cases. One of the key communication protocols that enables IoT today is Bluetooth Low Energy.
Delphi comes with very good support for building both mobile and desktop apps that are using Bluetooth LE. You can build Bluetooth LE clients, but it is also possible to implement GATT servers that emulate Bluetooth LE devices.
In this chapter, we have learned about interacting...
