Hillar - Hands-On MQTT Programming with Python

Copyright 2018 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing or its dealers and distributors, will be held liable for any damages caused or alleged to have been caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

Commissioning Editor: Kunal Choudhari
Acquisition Editor: Reshma Raman
Content Development Editor: Aditi Gour
Technical Editor: Sushmeeta Jena
Copy Editor: Safis Editing
Project Coordinator: Hardik Bhinde
Proofreader: Safis Editing
Indexer: Tejal Daruwale Soni
Graphics: Jason Monteiro
Production Coordinator: Shraddha Falebhai

First published: May 2018

Production reference: 1180518

Published by Packt Publishing Ltd.
Livery Place
35 Livery Street
Birmingham
B3 2PB, UK.

ISBN 978-1-78913-854-2

www.packtpub.com

Mapt is an online digital library that gives you full access to over 5,000 books and videos, as well as industry leading tools to help you plan your personal development and advance your career. For more information, please visit our website.

• Spend less time learning and more time coding with practical eBooks and Videos from over 4,000 industry professionals

• Improve your learning with Skill Plans built especially for you

• Get a free eBook or video every month

• Mapt is fully searchable

• Copy and paste, print, and bookmark content

Did you know that Packt offers eBook versions of every book published, with PDF and ePub files available? You can upgrade to the eBook version at www.PacktPub.com and, as a print book customer, you are entitled to a discount on the eBook copy. Get in touch with us at service@packtpub.com for more details.

At www.PacktPub.com , you can also read a collection of free technical articles, sign up for a range of free newsletters, and receive exclusive discounts and offers on Packt books and eBooks.

Gaston C. Hillar is Italian and has been working with computers since he was 8 years old. Gaston has a bachelor's degree in computer science (graduated with honors) and an MBA. He is the CTO of Mapgenix, a freelance author, and a speaker.

He has been a senior contributing editor at Dr. Dobb's and has written more than a hundred articles on software development topics. He has received the prestigious Intel Black Belt Software Developer award eight times.

He lives with his wife, Vanesa, and his two sons, Kevin and Brandon.

Acknowledgements:

Ben Howes is the founder and lead consultant at Zoetrope Ltd, a specialist IoT consultancy
and product development firm in the UK. Ben has been creating connected hardware for
over 10 years and has worked across projects spanning from start-ups to multinational
deployments.

If you're interested in becoming an author for Packt, please visit authors.packtpub.com and apply today. We have worked with thousands of developers and tech professionals, just like you, to help them share their insight with the global tech community. You can make a general application, apply for a specific hot topic that we are recruiting an author for, or submit your own idea.

MQTT is the preferred IoT publish-subscribe lightweight messaging protocol. Python is definitely one of the most popular programming languages. It is open source, multiplatform, and you can use it to develop any kind of application. If you develop IoT, web applications, mobile apps, or a combination of these solutions, you must learn how MQTT and its lightweight messaging system works. The combination of Python and MQTT makes it possible to develop powerful applications that communicate with sensors, different devices, and other applications. Of course, it is extremely important to take security into account when working with this protocol.

Most of the time, when you work with complex IoT solutions coded in modern Python 3.6, you will use different IoT boards that might use diverse operating systems. MQTT has its own specific vocabulary and different working modes. Learning MQTT is challenging, because it includes too many abstract concepts that require real-life examples to be easy to understand.

This book will allow you to dive deep in to the latest version of the MQTT protocol: 3.1.1. You will learn to work with the most recent Mosquitto MQTT server, command-line tools, and GUI tools to allow you to understand how everything works with MQTT and the possibilities that this protocol provides for your projects. You will learn security best practices and use them for a Mosquitto MQTT server.