Book Image

Practical Node-RED Programming

By : Taiji Hagino
5 (1)
Book Image

Practical Node-RED Programming

5 (1)
By: Taiji Hagino

Overview of this book

Node-RED is a free and open source flow-based programming tool used to handle IoT data that allows programmers of any level to interconnect physical I/O, cloud-based systems, databases, and APIs to build web applications without code. Practical Node-RED Programming is a comprehensive introduction for anyone looking to get up to speed with the Node-RED ecosystem in no time. Complete with hands-on tutorials, projects, and self-assessment questions, this easy-to-follow guide will help you to become well versed in the foundations of Node-RED. You’ll learn how to use Node-RED to handle IoT data and build web applications without having to write complex code. Once you’ve covered the basics, you’ll explore various visual programming techniques and find out how to make sample flows as you cover web development, IoT development, and cloud service connections, and finally build useful real-world applications. By the end of this book, you’ll have learned how to use Node-RED to develop a real-world application from scratch, which can then be implemented in your business.
Table of Contents (19 chapters)
1
Section 1: Node-RED Basics
6
Section 2: Mastering Node-RED
11
Section 3: Practical Matters

Chapter 4: Learning the Major Nodes

In this chapter, you will learn about the major nodes used in Node-RED. Node-RED, which is an open source project, provides some major nodes by default, but it is possible to import and use nodes from the public library as required.

Node-RED has a lot of nodes. Therefore, this book is not sufficient to explain all of them. So, in this chapter, let's pick up the main nodes and most commonly used basic nodes and learn how to use them, exploring these topics in this chapter:

  • What is a node?
  • How to use nodes
  • Getting various nodes from the library

By the end of this chapter, you will have mastered how to use major nodes in the Node-RED flow editor.