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

Building the smart productivity cube

Before we get started building the smart productivity cube, let me first explain what exactly we are going to build and why.

Many people seem to suffer from the same problem: they feel like they have too little time and wonder where their time went. There are already plenty of time-tracking applications for desktop computers, smartphones, and tablets, such as Toggl (https://toggl.com) and Harvest (https://www.getharvest.com), that address this problem. All of them serve the same purpose—counting how much time you spend on what activities, so you have a better understanding of how you use your time. This is either used for personal insights or professionally, for example, to count billable hours when working for a client. Most of them work like a stopwatch does—you manually start and stop a timer, one per task.

While most of these...