This video demonstrates how to install Node Red onto a Raspberry PI using Putty and SSH enabled security encryption. Node Red is a low code platform that enables fast implementation of ideas with minimal knowledge of coding platforms such as Python or JavaScript. See Linux commands for installing Node Red in chat below. Contact me if you need help. Video Contents 0:00 Intro 0:41 Raspberry Pi Enable SSH Connections 1:22 Using PuTTY to Connect 2:20 Updating Software 2:52 Installing Node-Red 3:57 Overview of Install 4:39 Starting Node-Red 4:47 Running Nod-Red on Web Browser
Introduction
Installing Node-RED on a Raspberry Pi 4 Model B can be a great way to create powerful and versatile IoT (Internet of Things) applications. Node-RED is an open-source programming tool that allows users to easily create and manage flows of data between different devices and services. In this guide, we will walk you through the steps necessary to install Node-RED on your Raspberry Pi 4 and get started with creating your own flows.
Prerequisites
Before we begin, it is important to make sure that your Raspberry Pi 4 is properly set up and configured. This guide assumes that you have already installed the latest version of Raspbian on your Raspberry Pi 4 and that it is connected to the internet. Additionally, you will need to have some basic knowledge of the command line and basic Linux commands.
Step 1: Update and Upgrade Your Raspberry Pi
Before installing any new software on your Raspberry Pi, it is always a good idea to make sure that your system is up to date. To do this, open a terminal window and enter the following commands:
sqlsudo apt-get update
sudo apt-get upgrade
This will update the package lists and upgrade any existing packages on your system.
Step 2: Install Node.js
Node-RED requires Node.js to be installed on your system in order to run. To install Node.js, enter the following command in the terminal:
csharp
curl -sL https://deb.nodesource.com/setup_14.x | sudo -E bash -
sudo apt-get install -y nodejs
This will install the latest version of Node.js (version 14.x) on your Raspberry Pi.
Step 3: Install Node-RED
Once Node.js is installed, we can proceed to install Node-RED. To do this, enter the following command in the terminal:
csharpsudo npm install -g --unsafe-perm node-red
This command will install Node-RED globally on your system, allowing it to be run from any directory.
Step 4: Start Node-RED
Now that Node-RED is installed, we can start it by entering the following command in the terminal:
node-red
This will start the Node-RED server, and you should see output similar to the following:
lessWelcome to Node-RED
===================
29 Jan 23:19:14 - [info] Node-RED version: v1.3.3
29 Jan 23:19:14 - [info] Node.js version: v14.16.1
29 Jan 23:19:14 - [info] Linux 4.19.118-v7l+ arm LE
Step 5: Access the Node-RED Editor
Once the Node-RED server is running, you can access the Node-RED editor by opening a web browser and navigating to http://localhost:1880. This will bring up the Node-RED editor, where you can begin creating and managing your flows.
Conclusion
Installing Node-RED on a Raspberry Pi 4 is a simple and straightforward process. With Node-RED, you can easily create powerful and versatile IoT applications with minimal coding. By following this guide, you should now be able to start creating your own flows and experimenting with the capabilities of Node-RED.