firmata-electron/examples/blink.js

A library to control an arduino running firmata

/**
 * Sample script to blink LED 13
 */


console.log("blink start ...");

var ledPin = 13;

var firmata = require("../lib/firmata");
var board = new firmata.Board("/dev/cu.usbmodem1411", function(err) {
  if (err) {
    console.log(err);
    return;
  }
  console.log("connected");

  console.log("Firmware: " + board.firmware.name + "-" + board.firmware.version.major + "." + board.firmware.version.minor);

  var ledOn = true;
  board.pinMode(ledPin, board.MODES.OUTPUT);

  setInterval(function() {

    if (ledOn) {
      console.log("+");
      board.digitalWrite(ledPin, board.HIGH);
    } else {
      console.log("-");
      board.digitalWrite(ledPin, board.LOW);
    }

    ledOn = !ledOn;

  }, 500);

});