Color picker and MQTT

sebastien-b · December 30, 2022, 11:21am

Hello everyone, I’m a new Gladys user. My Gladys setup uses only the MQTT integration, with the latest Node-RED.

I’m testing the color-picker function,

pierre-gilles · January 2, 2023, 10:22am

Hi @sebastien-b !

The color is sent in integer format

We have some JS conversion functions in Gladys:

github.com/GladysAssistant/Gladys

server/utils/colors.js

master

/**
 * @description Converts int color to RGB object.
 * @param {number} intColor - Color between 0 and 16777215.
 * @returns {Array} [ red, green, blue ] object.
 * @example
 * const rgb = intToRgb(255);
 * {
 *  red: 255,
 *  blue: 0,
 *  green: 0,
 * }
 */
function intToRgb(intColor) {
  // eslint-disable-next-line no-bitwise
  const red = intColor >> 16;
  // eslint-disable-next-line no-bitwise
  const green = (intColor - (red << 16)) >> 8;
  // eslint-disable-next-line no-bitwise
  const blue = intColor - (red << 16) - (green << 8);

Ce fichier a été tronqué. afficher l'original

Which you can use in Node-RED in a « JS code » block to convert to the format you want (RGB, HEX)

sebastien-b · January 3, 2023, 12:15pm

Thank you, it works perfectly!

Have a good day everyone
seb

Topic		Replies	Views
[node-red] [milight] ampoule couleur Configuration node-red , milight	5	1109	October 15, 2021
Bandeau de LEDs WIFI (AL-LC01) avec firmware Tasmota, comment l'intégrer? Configuration	18	982	July 9, 2021
Retour Gladys V4.0.4 - Dev Color-Picker Développement	11	523	January 11, 2021
Contrôle luminosité/couleur depuis le Dashboard Configuration mqtt	4	1253	November 2, 2020
Difficulté avec le color-picker Configuration	3	225	November 11, 2022

Color picker and MQTT

Related topics