const int temperaturePin = A3;  // Connect the TMP36 sensor to analog pin A0
const int buzzerPin = 6;        // Connect the piezo buzzer to digital pin 7

void setup() {
  Serial.begin(9600);
  pinMode(buzzerPin, OUTPUT);
}

void loop() {
  // Read the temperature from the TMP36 sensor
  int sensorValue = analogRead(temperaturePin);

  // Convert the sensor value to Celsius
  float temperatureCelsius = (sensorValue / 1024.0) * 500;

  // Check if the temperature exceeds a predefined threshold (e.g., 30 degrees Celsius)
  if (temperatureCelsius > 500.0) {
    // If the threshold is exceeded, sound the piezo buzzer
    tone(buzzerPin, 1000);  // You can change the frequency (in Hertz) as needed
    delay(1000);            // Sound the piezo buzzer for 1 second
    noTone(buzzerPin);      // Turn off the piezo buzzer
  }

  // Print the temperature value to the serial monitor
  Serial.print("Temperature: ");
  Serial.print(temperatureCelsius);
  Serial.println(" °C");

  // Delay for a moment before taking the next reading
  delay(1000);
}