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)
Section 1: Node-RED Basics
Section 2: Mastering Node-RED
Section 3: Practical Matters

Chapter 5: Implementing Node-RED Locally

In this chapter, let's use the standalone version of Node-RED. Node-RED consists of a development environment, an execution environment, and the application itself. You can understand the mechanism by using the standalone version that runs in the local environment.

Specifically, the most common reason for starting the standalone version of Node-RED is when using it on an IoT edge device. IoT edge devices have sensors that are usually applied to the "Things" part of the "Internet of Things." In this chapter, we will look at the sensing data within the edge device and create a sample flow.

Let's get started with the following four topics:

  • Running Node-RED on a local machine
  • Using the standalone version of Node-RED
  • Using IoT on edge devices
  • Making a sample flow

By the end of this chapter, you will have learned how to build a flow for handling sensor data on IoT devices.