led-slider.md

LED - Slider

Controls the brightness of an LED by pairing it with a slider. Requires LED on pin that supports PWM (usually denoted by ~).

Breadboard for "LED - Slider"

Fritzing diagram: docs/breadboard/led-slider.fzz

 

Run this example from the command line with:

node eg/led-slider.js

const {Board, Led, Sensor} = require("johnny-five");
const board = new Board();

board.on("ready", () => {
  const slider = new Sensor("A0");
  const led = new Led(11);

  // Scale the sensor's value to the LED's brightness range
  slider.on("data", () => {
    led.brightness(slider.scaleTo([0, 255]));
  });
});

 

License

Copyright (c) 2012-2014 Rick Waldron waldron.rick@gmail.com Licensed under the MIT license. Copyright (c) 2015-2023 The Johnny-Five Contributors Licensed under the MIT license.