bennuttall/hello-world-raspberry-pi

"Hello World" programs in languages and applications pre-installed in Raspbian

Hi there 👋

• I work as software engineer at the BBC building prototypes in BBC News Labs
• I like Python, Linux and all things open source
• I previously worked at Raspberry Pi
• I created the projects piwheels and gpiozero which I work on with Dave Jones
• Find me on Twitter: @ben_nuttall
• Check out my website and blog, and see my contact information: bennuttall.com
• I previously wrote at:
  • raspberrypi.com
  • raspberrypi.org
  • opensource.com

hello-world-raspberry-pi's Issues

Node Red

This flow injects the string "Hello world" into the debug tab.

[{"id":"5e433d93.f63b84","type":"inject","z":"5458c33a.6eeebc","name":"Inject the string \"Hello world\"","topic":"","payload":"Hello World","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":240,"y":140,"wires":[["46376d11.ca318c"]]},{"id":"46376d11.ca318c","type":"debug","z":"5458c33a.6eeebc","name":"Output to debug tab","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","x":500,"y":140,"wires":[]}]

Copy the whole json object to the clipboard, then from the menu (hamburger, top right) select Import then Clipboard and paste in. Place it, deploy it, then click the left touch point on the inject node.

The screenshot is from my desktop PC, but NodeRed itself is running on a Raspberry Pi 1 B, as installed in vanilla Raspbian desktop.

To recreate yourself, do the following:

1. Drag an Inject node to the main flow.
2. Double click it to edit. Change the Payload dropdown to the type string, then type Hello world in the Payload box. Click Done.
3. Drag a Debug node to the main flow.
4. Click and drag a wire from the output of the Inject node to the input of the Debug node.
5. Click Deploy in the top right of the window.
6. Click the touch point on the left of the Inject node to write Hello World in the debug tab (you may need to click on the Debug tab if it is not selected).