Writing Functions - Node-RED
With the 1.1.0 release, the Function node provides an On Start tab (labeled Setup before 1.3.0) where you can provide code that will run whenever the node is started. This can be used to …
EXAMPLE - using an external javascript in a function node
This example show how to use an eternal NPM javascript in a function node. This example uses tinycolor.js to test an RGB color to see if it is 'light' or 'dark'. ** Setup **
Using the Node-Red Function Node- Beginners Guide - Steves Node-Red …
Jan 20, 2025 · The function node is used to run JavaScript code. The function node accepts a msg object as input and can return 0 or more message objects as output.
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[solved] Change color of template node with variable - Node-RED Forum
Apr 28, 2021 · When it is at 00 : 00: 00, the field (Ereignismonitor_Einsatzzeit md-card) should be green, when it is running, the field should be red (like picture below). Probably there is a much …
javascript - How to change Node-RED Gauge Color dynamically
Apr 21, 2022 · here on GitHub I found out that it should be possible to change the color of the gage with the colors property dynamically. However the following code is not working. The min …
How to display a LED in Node-RED Dashboard - Blogger
Dec 14, 2017 · For this testing, I created a property in the .msg object and assigned to it a color (lime or red). See the Javascript code inside the function node. It simply adds a color to …
Node appearance : Node-RED
There are three aspects of a node’s appearance that can be customised; the icon, background colour and its label. The node’s icon is specified by the icon property in its definition. The value …
use an external js library in a node-red function
Jul 20, 2016 · I've installed a js library https://www.npmjs.com/package/fft with npm, how can I make this available in node-red functions ? This is covered Writing Functions sections of the …
Using 'javascript-color-gradient' in node red function node?
Nov 17, 2020 · Restart NR, then I try use same in a function node... const YELLOW = '#FFFF00', BLUE = '#0000FF', RED = '#FF0000', GREEN = '#008000'; var theGradient = …
node-red-contrib-chroma
A Node-RED node for color conversions This node mostly is based on chroma.js with additional formats like RGBW and CIExyz. chroma.js is a small-ish zero-dependency JavaScript library …