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MQTT Essentials - A Lightweight IoT Protocol

You're reading from   MQTT Essentials - A Lightweight IoT Protocol The preferred IoT publish-subscribe lightweight messaging protocol

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Product type Paperback
Published in Apr 2017
Publisher Packt
ISBN-13 9781787287815
Length 280 pages
Edition 1st Edition
Languages
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Author (1):
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Gaston C. Hillar Gaston C. Hillar
Author Profile Icon Gaston C. Hillar
Gaston C. Hillar
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Toc

Table of Contents (8) Chapters Close

Preface 1. Lightweight Messaging with MQTT 3.1.1 and Mosquitto FREE CHAPTER 2. Securing an MQTT Mosquitto Server 3. Controlling a Drone with Python 4. Interacting with Sensors in Java 5. Controlling Home Automation in JavaScript 6. Interacting with Actuators in Swift A. Exersise Answers

Creating an HTML 5 web page to control LEDs


First, we will create a new HTML 5 file called home_automation.html. The web page will also use a pure JavaScript color picker: JSColor. The main web page for JSColor is http://jscolor.com . The following lines show the code for the single web page for our web application. The code file for the sample is included in the mqtt_essentials_gaston_hillar_05 folder, in the home_automation.html file:

<html>  
  <head">
    <script src="paho.javascript-1.0.2/mqttws31.js"></script">
    <script src="jscolor-2.0.4/jscolor.js""></script>
    <script src="home_automation.js""></script>
    <title">MQTT over WebSockets Sample</title>
  </head>
  
  <body>  
    <div id="status"">Not connected with MQTT Server</div>
    <div id="led-1">
        <span>
        Select color for LED #1
        </span>
        <input class="jscolor" onchange="APP.HomeAutomation...
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