Book Image

Arduino IoT Cloud for Developers

By : Muhammad Afzal
Book Image

Arduino IoT Cloud for Developers

By: Muhammad Afzal

Overview of this book

The Arduino IoT Cloud offers a variety of features for building modern IoT solutions while reducing time and costs for prototyping and deployment. This book is a step-by-step guide, helping you master the powerful Arduino IoT Cloud ecosystem. This book begins by introducing you to the IoT landscape including its architecture, communication technologies, and protocols and then to the capabilities of the Arduino IoT Cloud platform and the Cloud Editor. With practical projects, such as monitoring air quality, building a portable asset tracker, and creating a remote alarm system using the LoRaWAN specification, you'll learn how to implement real-world IoT applications. Next, you'll explore communication between IoT devices and cloud platforms as well as the implementation of the Arduino IoT Cloud SDK and JavaScript for advanced customization. You'll also find out how to program IoT nodes, analyze the surrounding environment data, and visualize it on dashboards. Additionally, you’ll get to grips with advanced features such as task scheduling, synchronization, remote over-the-air updates for IoT nodes, and scripting with CCLI, through hands-on examples. By the end of this book, you’ll have learned how to work with the Arduino IoT Cloud platform and related hardware devices and will be able to develop industry-specific and cost-effective IoT solutions, such as smart homes and smart agriculture.
Table of Contents (21 chapters)
1
Part 1: Introduction to IoT and Communication Technologies and the Arduino IoT Cloud
5
Part 2: Getting Hands-On with Different Communication Technologies
9
Part 3: Exchanging Data between Nodes and Cloud Applications
14
Part 4: Learning Advanced Features of the Arduino IoT Cloud and Looking Ahead

Fine-tuning with the Node.js SDK – property value management

In this section, we will look at how we can set/get cloud variable values using the SDK. This is very useful for performing bulk operations; for example, if you have 100 lights connected to the Arduino IoT Cloud, it will be difficult to control them all manually from a dashboard. Suppose switching one device on/off takes 3 seconds from the dashboard – with 100 devices this will require 300 seconds, a total of 5 minutes, along with the chance of human error (maybe the user misses one device due to bulk processing). But with the help of the SDK, we can perform bulk operations on Things, saving time and improving confidence in our ability to reach zero-error operations.

Get a property value

Let’s first see how to get the last value of the cloud variable. To do this, we need the Thing ID and cloud variable ID. More precisely, we will get the complete properties of the cloud variable in JSON format here...