diff --git a/FaceRecognition-python.pyproj b/FaceRecognition-python.pyproj
index 59872e9..050cd6e 100644
--- a/FaceRecognition-python.pyproj
+++ b/FaceRecognition-python.pyproj
@@ -20,6 +20,7 @@
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="main.py" />
+    <Compile Include="Trainer.py" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\Python Tools\Microsoft.PythonTools.targets" />
 </Project>
\ No newline at end of file
diff --git a/Trainer.py b/Trainer.py
index 51bf47f..f4a80fe 100644
--- a/Trainer.py
+++ b/Trainer.py
@@ -3,26 +3,29 @@ from io import BytesIO
 import cv2
 import numpy as np
 
-def train(label, path):
+def addPerson(label, ImagesPath, newFileName, oldFileName):
     try:
+        #faceFilePath = '/faces/hesham-saeed2'
+        faceFile = '/faces/'+ oldFileName
         face_recognizer = cv2.createLBPHFaceRecognizer()
-        face_recognizer.load('/faces/hesham-saeed2')
+        face_recognizer.load(faceFile)
     except:
         print('[ Error ] Problem in init/loading LBPHfacerecognizer')
     images = []
     labels = []
-    image_names = os.listdir(path)
+    image_names = os.listdir(ImagesPath)
     for image_name in image_names:
         if image_name.startswith('.'):
             continue;
         image_path = train_path + image_name
-		image = cv2.imread(image_path)
+        image = cv2.imread(image_path)
 		gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
         face_cascade = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
         faces = face_cascade.detectMultiScale(gray, 1.3, 5)
         for (x,y,w,h) in faces:
             images.append(gray[y:y+h, x:x+w])
             labels.append(label)
-        face_recognizer.train(images, np.array(labels))
-    
-        
\ No newline at end of file
+    face_recognizer.train(images, np.array(labels))
+    face_recognizer.save('/faces/'+newFileName)
+
+         
\ No newline at end of file
diff --git a/main.py b/main.py
index fc2761a..fc4d449 100644
--- a/main.py
+++ b/main.py
@@ -12,11 +12,8 @@ try:
 except Exception as ex:
     print('[ Error ] some depandincies are missing\n'+ str(ex.args))
 
-
 def init():
 	go = True
-	#OpenShifter()
-	#if Sensors():
 	print('Initilizing Camera and cascade components..')
 	try:
 		camera = PiCamera()
@@ -115,25 +112,22 @@ def recognize(image):
 		return 'Saeed'
 	else:
 		return 'Unknown'
-		
-def Sensors():
-		
-	while 1:
-		try:
-			line = ser.readline()
-			print(line)
-			if 'A' in line:
-				return True
-			else:
-				print('Sensors not OK..')
-
-		except:
-			print('[ Error ] Can not connect with arduino. Retrying..')
 			
 def OpenShifter():
-	ser = serial.Serial('/dev/ttyUSB1',9600)
-	ser.open()
-	ser.write('O')
-	ser.close()
+	try:
+	    ser = serial.Serial('/dev/ttyUSB1',9600)
+    	ser.open()
+    	ser.write('O')
+    	ser.close()
+	except Exception as ex:
+        print('[ Error ] Can not connect to Arduino at /dev/ttyUSB1 .. \n Trying /dev/ttyUSB0')
+        try:
+            ser = serial.Serial('/dev/ttyUSB0',9600)
+            ser.open()
+            ser.write('O')
+            ser.close()
+        except Exception as ex:
+            print('[ Error ] Can not connect to Arduino at /dev/ttyUSB0')
+	    
 
 init()