Links

Node-RED editor (home)
Node Red MQTT on the Raspberry Pi (YouTube)
IoT server: Mosquitto and Node Red on Raspberry Pi
Node-RED Cookbook
Top 5 Node-RED Core Nodes

Raspberry Pi with Node-RED Tutorial #1 – First Test (YouYube)
Raspberry Pi with Node-RED Tutorial #2 – Make a user interface (YouTube)
Raspberry Pi with Node-RED Tutorial #3 – unix command with exec node (YouTube)
Raspberry Pi with Node-RED Tutorial #4 - interacting with Arduino UNO (YouTube)
Raspberry Pi with Node-RED Tutorial #5 – backup and import a project (YouTube)
Raspberry Pi with Node-RED Tutorial #6 – Don’t forget to set a password! (YouTube)
Raspberry Pi with Node-RED Tutorial #7 – HTML & CSS Create your website (YouTube)

YouTube Tutorial (old but informative)

Intro to Node-RED: Part 1 Fundamentals
Intro to Node-RED: Part 2 Best Practices
Intro to Node-RED: Part 3 Advanced Nodes

Install Node-RED

cd /etc/apt/preferences.d/
ls
sudo rm nosnap.pref        # if it exists
sudo apt update
sudo apt install snapd
cd ~

sudo snap install node-red

Install Node-RED Dashboard Nodes (optional)

1. Go to "Manage Palette" menu
2. Select install tab
3. Search for "dash" and locate "node-red-dashboard"
4. install "node-red-dashboard"
5. Restart Node-RED

URL to access the dashboard → localhost:1880/ui

Node Red Dashboard Basics (YouTube)

First Node-RED Flow

From: MQTT Publish and Subscribe Using Node Red (YouTube)