johnny-five/eg/led-strobe.js

The JavaScript Arduino Programming Framework.

var five = require("../lib/johnny-five.js"),
  board, led;

board = new five.Board();

board.on("ready", function() {

  // Create a standard `led` hardware instance
  led = new five.Led(13);

  // "strobe" the led in 100ms on-off phases
  led.strobe(100);
});