How to use the inject node to send the phrase "Hello World!" to the debug terminal :) This is a classic getting started example and is usually done when first learning to program in a new language.
Parts List:
None except for your raspberry pi already setup.
Getting Started:
Starting Node-Red:
Start Node-Red by clicking on the red Node-Red icon on the start menu under the “Programming” section.
Starting web browser Node-Red interface:
Start the Chromium web browser by clicking on the blue world icon on the top bar.
Click on the “Node-Red” link inside Chromium on the bookmarks bar.
Video Tutorial:
Programming Hello World! example:
Review:
Inject and debug nodes will be used extensively throughout our other lessons and are the building blocks of understanding how JSON messages are sent between nodes.
Whats Next:
Why not try connect an RGB LED to the IO pins now that you know the basics!