Node RED

Intro

• Official site
• Docs/Help/Tutorials
  • Steve’s Node-Red Guide
  • Julian Knight's blog
  • Tutorial video series from Opto 22

Getting Started

• Installing/Running on Raspberry Pi
  • Installation log: /var/log/nodered-install.log
  • User content installed under ~/.node-red (e.g. /home/pi/.node-red)
  • Global content installed to:
    • /usr/bin/node
    • /usr/bin/nodejs (symlink to /etc/alternatives/nodejs, which symlinks back to /usr/bin/node)
    • /usr/bin/node-red (symlink to ../lib/node_modules/node-red/red.js
    • /usr/bin/node-red-pi (symlink to ../lib/node_modules/node-red/bin/node-red-pi
    • /usr/bin/node-red-* scripts
    • /usr/lib/node_modules
  • The getting-started page has instructions for starting/stopping, running as a service, and starting automatically on boot.

Adding Nodes (to the palette)

• https://nodered.org/docs/user-guide/runtime/adding-nodes
• Common nodes to add:
  • node-red-dashboard
    • See Dashboard section below

Dashboard

• Node name: node-red-dashboard
• https://flows.nodered.org/node/node-red-dashboard
• Tutorials
  • Tutorial: Basic Node-RED Dashboard UI (Opto 22)
  • http://stevesnoderedguide.com/node-red-dashboard
  • https://randomnerdtutorials.com/getting-started-with-node-red-dashboard/