Book Image

Mastering IOT

By : Colin Dow, Perry Lea
Book Image

Mastering IOT

By: Colin Dow, Perry Lea

Overview of this book

The Internet of Things (IoT) is the fastest growing technology market. Industries are embracing IoT technologies to improve operational expenses, product life, and people's well-being. We’ll begin our journey with an introduction to Raspberry Pi and quickly jump right into Python programming. We’ll learn all concepts through multiple projects, and then reinforce our learnings by creating an IoT robot car. We’ll examine modern sensor systems and focus on what their power and functionality can bring to our system. We’ll also gain insight into cloud and fog architectures, including the OpenFog standards. The Learning Path will conclude by discussing three forms of prevalent attacks and ways to improve the security of our IoT infrastructure. By the end of this Learning Path, we will have traversed the entire spectrum of technologies needed to build a successful IoT system, and will have the confidence to build, secure, and monitor our IoT infrastructure. This Learning Path includes content from the following Packt products: Internet of Things Programming Projects by Colin Dow Internet of Things for Architects by Perry Lea
Table of Contents (34 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
Free Chapter
1
The IoT Story
Index

Chapter 20. Creating a Doorbell Button Using Bluetooth

In this chapter, we will turn our focus to Bluetooth. Bluetooth is a wireless technology used in the exchange of data over short distances. It operates in the 2.4 to 2.485 GHz frequency band, and generally has a range of up to 10 meters.

We will be utilizing the Blue Dot app on Android for the projects in this chapter, in which we will build a simple Bluetooth doorbell, before building a more advanced one that accepts secret swiping gestures.

The following topics will be covered in this chapter:

  • Introducing Blue Dot
  • What is an RGB LED?
  • Reading our button state using Bluetooth and Python