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:

bash

node eg/led-pulse.js

javascript

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);

  led.pulse();

  // 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
    led.stop().off();
  });
});

License