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Hands-On Internet of Things with MQTT

This is the code repository for Hands-On Internet of Things with MQTT, published by Packt.

Build connected IoT devices with Arduino and MQ Telemetry Transport (MQTT)

What is this book about?

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.

This book covers the following exciting features:

• Explore MQTT programming with Arduino
• Discover how to make your prototypes talk to each other
• Send MQTT messages from your smartphone to your prototypes
• Discover how you can make websites interact with your prototypes
• Learn about MQTT servers, libraries, and apps
• Explore tools such as laser cutting and 3D printing in order to build robust prototype cases

If you feel this book is for you, get your copy today!

Instructions and Navigations

All of the code is organized into folders. For example, Ch05.

Following is what you need for this book:

This book is ideal for readers who want to start creating internet-connected projects themselves, but only have a little bit of experience of programming and using the Arduino IDE. You do not need to have a computer science background to follow along. Simply curiosity and a basic understanding of programming in Arduino will be enough. If you understand basic programming concepts such as variables, loops, conditions, and functions, then you will have no problem following along.

Some of the chapters touch on a lot of different topics. I do not expect you to understand every single bit in detail. The goal here is to give you a general overview of related technologies and techniques, so you can dive into any of the topics after finishing the book. You can look at it as a starting point for IoT prototyping.

For an intermediate or professional programmer, the pace of the hands-on projects in this book might feel a bit slow, but there is plenty of relevant information for you in the theoretical chapters as well, including how to use MQTT.

With the following software and hardware list you can run all code files present in the book:

Software and Hardware List

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. Click here to download it.

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• Mastering ROS for Robotics Programming [PACKT] [Amazon]

Get to Know the Author

Tim Pulver is a Berlin-based freelance interaction designer and developer. In his work, he combines his physical prototyping experience and knowledge of interface design with modern technologies such as 3D printing, laser cutting, web technologies, and machine learning to create unique interactive experiences. In recent years, he has worked on interactive data visualizations, web-based audiovisual experiences, musical interfaces, and cables— an innovative browser-based visual programming language that enables the creation of interactive audiovisual prototypes without writing any code. He holds a Bachelor of Arts degree in interface design from the University of Applied Sciences in Potsdam, Germany.

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