diff --git a/Manual/4_Module_2.ipynb b/Manual/4_Module_2.ipynb
index 13afe38..90fd3a3 100644
--- a/Manual/4_Module_2.ipynb
+++ b/Manual/4_Module_2.ipynb
@@ -19,9 +19,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2025-11-21T08:01:53.138045Z",
+     "start_time": "2025-11-21T08:01:44.644007Z"
+    }
+   },
    "source": [
     "# Import necessary libraries\n",
     "import time\n",
@@ -33,15 +36,17 @@
     "# Uncomment one of the following lines depending on your setup\n",
     "\n",
     "# If you are using the real car, uncomment the next lines and comment the simulator lines\n",
-    "# from serial import Serial\n",
-    "# import sounddevice\n",
+    "from serial import Serial\n",
+    "import sounddevice\n",
     "\n",
     "# If you are using the simulator, uncomment the next lines and comment the real car lines\n",
-    "from KITT_Simulator.serial_simulator import Serial\n",
-    "from KITT_Simulator.sounddevice_simulator import sounddevice\n",
+    "# from KITT_Simulator.serial_simulator import Serial\n",
+    "# from KITT_Simulator.sounddevice_simulator import sounddevice\n",
     "\n",
     "# Note: After changing the import statement, you need to restart the kernel for changes to take effect."
-   ]
+   ],
+   "outputs": [],
+   "execution_count": 2
   },
   {
    "cell_type": "markdown",
@@ -99,22 +104,54 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2025-11-21T08:34:56.275481Z",
+     "start_time": "2025-11-21T08:34:56.020404Z"
+    }
+   },
    "source": [
     "### Student Version ###\n",
     "\n",
     "# TODO: Establish a serial connection, ask for a status report, read it out, and print it\n",
-    "serial = Serial('/dev/rfcomm2', 115200)\n",
-    "serial.write(b'S\\n')\n",
-    "status = serial.read_until(b'\\n')\n",
+    "serial = Serial('COM4', 115200)\n",
+    "serial.write(b'Sd\\n')\n",
+    "status = serial.read_until(b\"\\x04\")\n",
     "status = status.decode('utf-8')\n",
     "print(f\"Car status is:\\n\\n{status}\")\n",
     "\n",
     "# TODO: Close the serial connection\n",
     "serial.close()"
-   ]
+   ],
+   "outputs": [
+    {
+     "ename": "SerialException",
+     "evalue": "could not open port 'COM4': PermissionError(13, 'Access is denied.', None, 5)",
+     "output_type": "error",
+     "traceback": [
+      "\u001B[31m---------------------------------------------------------------------------\u001B[39m",
+      "\u001B[31mSerialException\u001B[39m                           Traceback (most recent call last)",
+      "\u001B[36mCell\u001B[39m\u001B[36m \u001B[39m\u001B[32mIn[31]\u001B[39m\u001B[32m, line 4\u001B[39m\n\u001B[32m      1\u001B[39m \u001B[38;5;66;03m### Student Version ###\u001B[39;00m\n\u001B[32m      2\u001B[39m \n\u001B[32m      3\u001B[39m \u001B[38;5;66;03m# TODO: Establish a serial connection, ask for a status report, read it out, and print it\u001B[39;00m\n\u001B[32m----> \u001B[39m\u001B[32m4\u001B[39m serial = \u001B[43mSerial\u001B[49m\u001B[43m(\u001B[49m\u001B[33;43m'\u001B[39;49m\u001B[33;43mCOM4\u001B[39;49m\u001B[33;43m'\u001B[39;49m\u001B[43m,\u001B[49m\u001B[43m \u001B[49m\u001B[32;43m115200\u001B[39;49m\u001B[43m)\u001B[49m\n\u001B[32m      5\u001B[39m serial.write(\u001B[33mb\u001B[39m\u001B[33m'\u001B[39m\u001B[33mSd\u001B[39m\u001B[38;5;130;01m\\n\u001B[39;00m\u001B[33m'\u001B[39m)\n\u001B[32m      6\u001B[39m status = serial.read_until(\u001B[33mb\u001B[39m\u001B[33m\"\u001B[39m\u001B[38;5;130;01m\\x04\u001B[39;00m\u001B[33m\"\u001B[39m)\n",
+      "\u001B[36mFile \u001B[39m\u001B[32m~\\PycharmProjects\\A.K.03\\.venv\\Lib\\site-packages\\serial\\serialwin32.py:33\u001B[39m, in \u001B[36mSerial.__init__\u001B[39m\u001B[34m(self, *args, **kwargs)\u001B[39m\n\u001B[32m     31\u001B[39m \u001B[38;5;28mself\u001B[39m._overlapped_read = \u001B[38;5;28;01mNone\u001B[39;00m\n\u001B[32m     32\u001B[39m \u001B[38;5;28mself\u001B[39m._overlapped_write = \u001B[38;5;28;01mNone\u001B[39;00m\n\u001B[32m---> \u001B[39m\u001B[32m33\u001B[39m \u001B[38;5;28;43msuper\u001B[39;49m\u001B[43m(\u001B[49m\u001B[43mSerial\u001B[49m\u001B[43m,\u001B[49m\u001B[43m \u001B[49m\u001B[38;5;28;43mself\u001B[39;49m\u001B[43m)\u001B[49m\u001B[43m.\u001B[49m\u001B[34;43m__init__\u001B[39;49m\u001B[43m(\u001B[49m\u001B[43m*\u001B[49m\u001B[43margs\u001B[49m\u001B[43m,\u001B[49m\u001B[43m \u001B[49m\u001B[43m*\u001B[49m\u001B[43m*\u001B[49m\u001B[43mkwargs\u001B[49m\u001B[43m)\u001B[49m\n",
+      "\u001B[36mFile \u001B[39m\u001B[32m~\\PycharmProjects\\A.K.03\\.venv\\Lib\\site-packages\\serial\\serialutil.py:244\u001B[39m, in \u001B[36mSerialBase.__init__\u001B[39m\u001B[34m(self, port, baudrate, bytesize, parity, stopbits, timeout, xonxoff, rtscts, write_timeout, dsrdtr, inter_byte_timeout, exclusive, **kwargs)\u001B[39m\n\u001B[32m    241\u001B[39m     \u001B[38;5;28;01mraise\u001B[39;00m \u001B[38;5;167;01mValueError\u001B[39;00m(\u001B[33m'\u001B[39m\u001B[33munexpected keyword arguments: \u001B[39m\u001B[38;5;132;01m{!r}\u001B[39;00m\u001B[33m'\u001B[39m.format(kwargs))\n\u001B[32m    243\u001B[39m \u001B[38;5;28;01mif\u001B[39;00m port \u001B[38;5;129;01mis\u001B[39;00m \u001B[38;5;129;01mnot\u001B[39;00m \u001B[38;5;28;01mNone\u001B[39;00m:\n\u001B[32m--> \u001B[39m\u001B[32m244\u001B[39m     \u001B[38;5;28;43mself\u001B[39;49m\u001B[43m.\u001B[49m\u001B[43mopen\u001B[49m\u001B[43m(\u001B[49m\u001B[43m)\u001B[49m\n",
+      "\u001B[36mFile \u001B[39m\u001B[32m~\\PycharmProjects\\A.K.03\\.venv\\Lib\\site-packages\\serial\\serialwin32.py:64\u001B[39m, in \u001B[36mSerial.open\u001B[39m\u001B[34m(self)\u001B[39m\n\u001B[32m     62\u001B[39m \u001B[38;5;28;01mif\u001B[39;00m \u001B[38;5;28mself\u001B[39m._port_handle == win32.INVALID_HANDLE_VALUE:\n\u001B[32m     63\u001B[39m     \u001B[38;5;28mself\u001B[39m._port_handle = \u001B[38;5;28;01mNone\u001B[39;00m    \u001B[38;5;66;03m# 'cause __del__ is called anyway\u001B[39;00m\n\u001B[32m---> \u001B[39m\u001B[32m64\u001B[39m     \u001B[38;5;28;01mraise\u001B[39;00m SerialException(\u001B[33m\"\u001B[39m\u001B[33mcould not open port \u001B[39m\u001B[38;5;132;01m{!r}\u001B[39;00m\u001B[33m: \u001B[39m\u001B[38;5;132;01m{!r}\u001B[39;00m\u001B[33m\"\u001B[39m.format(\u001B[38;5;28mself\u001B[39m.portstr, ctypes.WinError()))\n\u001B[32m     66\u001B[39m \u001B[38;5;28;01mtry\u001B[39;00m:\n\u001B[32m     67\u001B[39m     \u001B[38;5;28mself\u001B[39m._overlapped_read = win32.OVERLAPPED()\n",
+      "\u001B[31mSerialException\u001B[39m: could not open port 'COM4': PermissionError(13, 'Access is denied.', None, 5)"
+     ]
+    }
+   ],
+   "execution_count": 31
+  },
+  {
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2025-11-21T08:34:46.482551Z",
+     "start_time": "2025-11-21T08:34:46.476951Z"
+    }
+   },
+   "cell_type": "code",
+   "source": "serial.close()",
+   "outputs": [],
+   "execution_count": 30
   },
   {
    "cell_type": "markdown",
@@ -151,16 +188,20 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2025-11-21T08:38:32.466922Z",
+     "start_time": "2025-11-21T08:38:32.458668Z"
+    }
+   },
    "source": [
     "### Student Version ###\n",
     "\n",
     "def extract_dis ():\n",
     "    # TODO: Decode the status response to a string\n",
+    "    serial = Serial('COM4', 115200)\n",
     "    serial.write(b'S\\n')\n",
-    "    _status = serial.read_until(b'\\n')\n",
+    "    _status = serial.read_until(b'\\x04')\n",
     "    _status = _status.decode('utf-8')\n",
     "\n",
     "    # TODO: Split the status string into lines\n",
@@ -174,12 +215,12 @@
     "    for line in lines:\n",
     "        if \"Dist.\" in line:\n",
     "            # TODO: Split the line into words\n",
-    "            words = lines.split()\n",
+    "            words = line.split()\n",
     "            # Extract distance values based on their positions\n",
     "\n",
     "            # Assign dist_L and dist_R accordingly\n",
-    "            dist_L =\n",
-    "            dist_R =\n",
+    "            dist_L = words[3]\n",
+    "            dist_R = words[5]\n",
     "            break  # Exit the loop after finding the distances\n",
     "\n",
     "    # Print the extracted distance values\n",
@@ -187,7 +228,40 @@
     "    print(f\"Right Distance: {dist_R}\")\n",
     "\n",
     "    return dist_L, dist_R"
-   ]
+   ],
+   "outputs": [],
+   "execution_count": 43
+  },
+  {
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2025-11-21T08:38:36.110680Z",
+     "start_time": "2025-11-21T08:38:34.392005Z"
+    }
+   },
+   "cell_type": "code",
+   "source": "extract_dis()",
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Left Distance: 99\n",
+      "Right Distance: 51\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "('99', '51')"
+      ]
+     },
+     "execution_count": 44,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "execution_count": 44
   },
   {
    "cell_type": "markdown",