arduino - Johnny-five を使用して Arduino Mega Ramps 1.4 を制御する

Question

Johnny-five を使用して、Ramps 1.4シールドでArduino Megaを制御したいと考えています。 Standard Firmata を Arduino ボードにアップロードし、次のコードを実行しようとしました。

var five = require('johnny-five');
var board = new five.Board();
board.on('ready',function(){
   console.log('Board is ready');
});

私のエラー:

1448365609699 Device(s) COM3,COM5
1448365609707 Connected COM3
1448365619710 Device or Firmware Error A timeout occurred while connecting to the Board.
Please check that you've properly flashed the board with the correct firmware.
See: https://github.com/rwaldron/johnny-five/wiki/Getting-Started#trouble-shooting
enter code here
events.js:146
  throw err;
  ^
Error: Uncaught, unspecified "error" event. ([object Object])
at Board.emit (events.js:144:17)
at Board.log (C:\Users\Digital Hammer\Documents\Electric lab playground\test\node_modules\johnny-five\lib\board.js:633:8)
at Board.(anonymous function) [as error] (C:\Users\Digital Hammer\Documents\Electric lab playground\test\node_modules\johnny-five\lib\board.js:644:14)
at Board.<anonymous> (C:\Users\Digital Hammer\Documents\Electric lab playground\test\node_modules\johnny-five\lib\board.js:414:14)
at Timer.listOnTimeout (timers.js:92:15)

なぜそれが機能しないのか、誰にもアイデアがありますか?