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LED - Pulse

LED pulse example that fades an LED in and out repeatedly. Requires LED on pin that supports PWM (usually denoted by ~).

LED on pin 11 (Arduino UNO)

LED inserted directly into pin 11.


Fritzing diagram: docs/breadboard/led-11-pwm.fzz


Run this example from the command line with:

node eg/led-pulse.js
const { Board, Led } = require("johnny-five");
const board = new Board();

board.on("ready", () => {
  // Create a standard `led` component
  // on a valid pwm pin
  const led = new Led(11);


  // Stop and turn off the led pulse loop after
  // 10 seconds (shown in ms)
  board.wait(10000, () => {

    // stop() terminates the interval
    // off() shuts the led off



Copyright (c) 2012-2014 Rick Waldron Licensed under the MIT license. Copyright (c) 2015-2019 The Johnny-Five Contributors Licensed under the MIT license.

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