diff --git a/iNode/Makefile b/iNode/Makefile
new file mode 100644
index 0000000..91c9cf0
--- /dev/null
+++ b/iNode/Makefile
@@ -0,0 +1,4 @@
+all:
+	sudo chmod +x /dev/ttyACM0
+	python3 parking.py
+
diff --git a/iNode/parking.py b/iNode/parking.py
new file mode 100644
index 0000000..f191b13
--- /dev/null
+++ b/iNode/parking.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+
+import time
+import serial
+ser = serial.Serial(
+    port='/dev/ttyACM0',
+    baudrate = 9600,
+    parity=serial.PARITY_NONE,
+    stopbits=serial.STOPBITS_ONE,
+    bytesize=serial.EIGHTBITS,
+    timeout=1
+)
+counter=0
+
+while 1:
+    park_status = ser.readline()
+    try:
+        if park_status != prev_status:
+            if b'1' in park_status:
+                print("parking reserved.\n")
+            elif b'0' in park_status:
+                print("parking not reserved.\n")
+    except NameError:
+        print("**Not already prev variable.\n")
+    prev_status = park_status
diff --git a/iNode/sensor.ino b/sensorNode/sensor.ino
similarity index 91%
rename from iNode/sensor.ino
rename to sensorNode/sensor.ino
index c4b4635..2037efc 100644
--- a/iNode/sensor.ino
+++ b/sensorNode/sensor.ino
@@ -43,11 +43,11 @@ distance= duration*0.034/2;
 //Serial.println(distance);
 
 if (distance < 5){
-  Serial.println("0");
+  Serial.println("0"); //parking isn't available.
   digitalWrite(response, LOW);
 }
 else{
-  Serial.println("1");
+  Serial.println("1"); //parking is available.
   digitalWrite(response, HIGH);
 }
 
diff --git a/serverNode/serv.py b/serverNode/serv.py
new file mode 100644
index 0000000..c378f2f
--- /dev/null
+++ b/serverNode/serv.py
@@ -0,0 +1,14 @@
+#Authors:   Oulis Evangelos, Oulis Nikolaos, Drosos Katsibras
+from flask import Flask, request
+from flask_restful import Resource, Api
+from json import dumps
+from flask.ext.jsonpify import jsonify
+
+app = Flask(__name__)
+apy = Api(app)
+
+parking =[]
+
+class Parking(Resource):
+    def get(self):
+