My short node-js-firmata attempt

node-firmata-attempt.js

// On Arduino Uno 2.2
// Using Examples > Firmata > StandardFirmata_2_2_forUNO_0_3

var firmata = require("./firmata/lib/firmata");
var board = new firmata.Board("/dev/tty.usbmodem621",function(){
  //code for board needs to go here
  console.log(board); // logs board object, board.pins is empty
  board.digitalWrite(2, 1); // generates error can't write value to undefined
});