IoT Projects with Bluetooth Low Energy

Introduction to Bluetooth Low Energy Sensors

Almost every BLE device that you will be interacting with in the real world and during the course of this book, will be a sensor that senses and stores data, waiting to be read. For example, a Fitbit senses heart rate, quality of sleep, and the number of steps walked. We will be interacting with a Fitbit device in the next chapter to understand how it stores the sensed data and how it makes that data available to us:

Figure 1: A Fitbit charge 2 device; source: www.fitbit.com

Temperature and humidity sensors can also use Bluetooth Low Energy as their communication protocol to transfer data to handheld ...