Book Image

Hands-On Internet of Things with MQTT

By : Tim Pulver
Book Image

Hands-On Internet of Things with MQTT

By: Tim Pulver

Overview of this book

MQ Telemetry Transport (MQTT) is a lightweight messaging protocol for smart devices that can be used to build exciting, highly scalable Internet of Things (IoT) projects. This book will get you started with a quick introduction to the concepts of IoT and MQTT and explain how the latter can help you build your own internet-connected prototypes. As you advance, you’ll gain insights into how microcontrollers communicate, and you'll get to grips with the different messaging protocols and techniques involved. Once you are well-versed with the essential concepts, you’ll be able to put what you’ve learned into practice by building three projects from scratch, including an automatic pet food dispenser and a smart e-ink to-do display. You’ll also discover how to present your own prototypes professionally. In addition to this, you'll learn how to use technologies from third-party web service providers, along with other rapid prototyping technologies, such as laser cutting, 3D printing, and PCB production. By the end of this book, you’ll have gained hands-on experience in using MQTT to build your own IoT prototypes.
Table of Contents (16 chapters)
Title Page

Summary

In this chapter, you learned how to control a servo motor connected to an Arduino MKR WiFi 1010 via MQTT. Using everyday household items such as a plastic bottle, we created a practical smart device—a smart (pet) food dispenser that you can control from anywhere in the world using an MQTT client (for example, an MQTT app for Android or iOS).

In Chapter 7, Build a Smart Productivity Cube, Part 1, and Chapter 8Build a Smart Productivity Cube, Part 2, we will use an MQTT client for iOS and Android to interact with our prototypes. You can, later on, combine what you have learned there to control your automatic pet food dispenser with your smartphone.

The knowledge you have gained in this chapter allows you to create all sorts of smart objects that require a servo motor. If you are looking for inspiration, have a look at the Arduino Project Hub (https...