event emmiter based connect

Now with event emitter to divide code more easily.

nodejs/ar-com/arduino.js

@@ -6,14 +6,18 @@ var events = require('events'),
 var Arduino = function (baudrate) {
   this.baudrate = baudrate && baudrate || 9600;
   this.writeBuffer = [];
-  this.success;
 }
 
+util.inherits(Arduino, events.EventEmitter);
+
+Arduino.prototype.HIGH = '255';
+Arduino.prototype.LOW = '000';
+
 Arduino.prototype.setup = function () {
   var self = this;
   child.exec('cd ../arduino && ino build && ino upload', function(err, stdout, stderr){
     
-    if(err){console.log('Please install the ino utility and connect arduino!\nIf there are other open programs that communicate with the arduino, close them!'); return self.success = false;}
+    if(err){console.log('Please install the ino utility and connect arduino!\nIf there are other open programs that communicate with the arduino, close them!'); return;}
 
     var buff = stdout.slice(stdout.indexOf('Guessing serial port ... ')+25);
     buff = buff.slice(0, buff.indexOf('\n'));
@@ -26,24 +30,31 @@ Arduino.prototype.setup = function () {
     
     self.serial.open(function (error) {
       if ( error ) {
-        console.log('Please check arduino!')
-        return self.success = false;
+        console.log('Please check arduino!');
+        return;
       }
+    });
 
+    serial.on('open', setTimout(function () {
       self.serial.write(new Buffer('00000000'));
-      self.success = true;
-      self.processWriteBuffer();
+      self.emit('success');
+      
+      self.serial.on('data', function(data){
+        self.emit('data', data);
       });
       
+      self.processWriteBuffer();
+    }), 500);
+
   });
 }
 
-Arduino.prototype.write = function (m) {
+Arduino.prototype.write = function (message) {
   if (this.serial) {
-    console.log('sending '+m);
-    this.serial.write(m);
+    console.log('sending '+message);
+    this.serial.write(message);
   } else {
-    this.writeBuffer.push(m);
+    this.writeBuffer.push(message);
     console.log('Board isn\'t available (yet?).')
   }
 }