feat: Add Arduino code for position tracking

The code changes include adding a new Arduino sketch for position tracking. The sketch is located at `code/arduino/Position-tracking/Position-tracking.ino`. Additionally, a new class `PositionSensor` is added with its corresponding header and implementation files. This class handles the position sensor functionality and includes methods for initialization and measurement.

The commit message suggests that the changes are a new feature addition related to position tracking in the Arduino code.

code/arduino/Position-tracking/Position-tracking.ino

@@ -0,0 +1,12 @@
+#include "PositionSensor.h"
+
+PositionSensor sensor(15); // Sensor Pin
+
+void setup() {
+  sensor.begin();
+}
+
+void loop() {
+    sensor.Measure();
+    delay(1000);
+}

code/arduino/Position-tracking/PositionSensor.cpp

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+#include "PositionSensor.h"
+
+PositionSensor::PositionSensor(int pin) : _pin(pin) {}
+
+void PositionSensor::begin() {
+  Serial.begin(115200);
+  pinMode(_pin, INPUT);
+}
+
+void PositionSensor::Measure() {
+  int value = analogRead(_pin);
+  Serial.println(value);
+}

code/arduino/Position-tracking/PositionSensor.h

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+#ifndef PositionSensor_h
+#define PositionSensor_h
+
+#include "Arduino.h"
+
+class PositionSensor {
+  public:
+    PositionSensor(int pin);
+    void begin();
+    void Measure();
+  private:
+    int _pin;
+};
+
+#endif

code/arduino/Position-tracking/test/test.ino

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+#include <BLEDevice.h>
+#include <BLEUtils.h>
+#include <BLEServer.h>
+
+// Define the BLE service and characteristic UUIDs
+#define SERVICE_UUID        "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
+#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
+
+void setup() {
+    // Initialize the BLE environment
+    BLEDevice::init("ESP32-S3");
+
+    // Create a BLE server
+    BLEServer *pServer = BLEDevice::createServer();
+
+    // Create a BLE service
+    BLEService *pService = pServer->createService(SERVICE_UUID);
+
+    // Create a BLE characteristic
+    BLECharacteristic *pCharacteristic = pService->createCharacteristic(
+                                                                                 CHARACTERISTIC_UUID,
+                                                                                 BLECharacteristic::PROPERTY_READ |
+                                                                                 BLECharacteristic::PROPERTY_WRITE
+                                                                             );
+
+    // Set the initial value of the characteristic
+    pCharacteristic->setValue("Hello, World!");
+
+    // Start the service
+    pService->start();
+
+    // Start advertising the BLE service
+    BLEAdvertising *pAdvertising = pServer->getAdvertising();
+    pAdvertising->addServiceUUID(SERVICE_UUID);
+    pAdvertising->start();
+}
+
+void loop() {
+    // Nothing to do here for this example
+}