void setup() {
    Serial.begin(115200);
    delay(1000);  // Allow time for serial monitor to open
}

void loop() {
    // Read the internal temperature sensor
    int rawValue = temperatureRead(); // ESP32's built-in function
    Serial.print("ESP32 Internal Temperature: ");
    Serial.print(rawValue);
    Serial.println(" °C");

    delay(2000); // Wait 2 seconds before next reading
}