Breadboard for "Laser Trip Wire"



Run this example from the command line with:

node eg/laser-trip-wire.js
var five = require("johnny-five");
var board = new five.Board();

board.on("ready", function() {
  var laser = new five.Led(9);
  var detection = new five.Sensor("A0");
  var isSecure = false;


  detection.scale(0, 1).on("change", function() {
    var reading = !(this.value | 0);

    if (isSecure !== reading) {
      isSecure = reading;

      if (!isSecure) {


Component Classes in this example:

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