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Node-red is a software flow-based development tool for visual programming.

Developed originally by IBM for wiring together hardware devices, APIs and online services as part of the Internet of Things.

Node-RED provides a web browser-based flow editor, which can be used to create flows which are made up of node (pre-made functions) that you wire together.

A function node is a javascript node which allows you to handle special programming.

Here I show you a Browser accessing the node-red service on the Raspberry Pi.

This is my Metar node which pulls data from Mercer County Airport and ...