MQTT Essentials - A Lightweight IoT Protocol

Key Features Make your connected devices less prone to attackers by

understanding practical security mechanisms Dive deep into one of IoT's

extremely lightweight machines to enable connectivity protocol with some real-

world examples Learn to take advantage of the features included in MQTT for

IoT and Machine-to-Machine communications with complete real-life examples

Book Description

This step-by-step guide will help you gain a deep understanding of the

lightweight MQTT protocol. We'll begin with the specific vocabulary of MQTT

and its working modes, followed by installing a Mosquitto MQTT broker. Then,

you will use best practices to secure the MQTT Mosquitto broker to ensure that

only authorized clients are able to publish and receive messages. Once you

have secured the broker with the appropriate configuration, you will develop a

solution that controls a drone with Python.

Further on, you will use Python on a Raspberry Pi 3 board to process commands

and Python on Intel Boards (Joule, Edison and Galileo). You will then connect

to the MQTT broker, subscribe to topics, send messages, and receive messages

in Python. You will also develop a solution that interacts with sensors in

Java by working with MQTT messages.

Moving forward, you will work with an asynchronous API with callbacks to make

the sensors interact with MQTT messages. Following the same process, you will

develop an iOS app with Swift 3, build a website that uses WebSockets to

connect to the MQTT broker, and control home automation devices with HTML5,

JavaScript code, Node.js and MQTT messages

What you will learn Understand how MQTTv3.1 and v3.1.1 works in detail Install

and secure a Mosquitto MQTT broker by following best practices Design and

develop IoT solutions combined with mobile and web apps that use MQTT messages

to communicate Explore the features included in MQTT for IoT and Machine-to-

Machine communications Publish and receive MQTT messages with Python, Java,

Swift, JavaScript, and Node.js Implement the security best practices while

setting up the MQTT Mosquitto broker About the Author

**Gaston C. Hillar** is Italian and has been working with computers since he

was eight. He began programming with the legendary Texas TI-99/4A and

Commodore 64 home computers in the early 80s. He has a bachelor's degree in

computer science (graduated with honors), and an MBA (graduated with an

outstanding thesis). At present, Gaston is an independent IT consultant and

freelance author who is always looking for new adventures around the world.

He has been a senior contributing editor at Dr. Dobb's and has written more

than a hundred articles on software development topics. Gaston was also a

former Microsoft MVP in technical computing. He has received the prestigious

Intel® Black Belt Software Developer award eight times.

He is a guest blogger at Intel® Software Network

(). You can reach him at gastonhillar@hotmail.com

and follow him on Twitter at . Gaston's blog

is .

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

Table of Contents Lightweight Messaging with MQTT 3.1.1 and Mosquitto Securing

an MQTT Mosquitto Server Controlling a Drone with Python Interacting with

Sensors in Java Controlling Home Automation in JavaScript Interacting with

Actuators in Swift Exersise An