const float BETA = 3950; // should match the Beta Coefficient of the thermistor
#define led_button 14
#define buzzer 12
void setup() {
  Serial.begin(9600);
  analogReadResolution(10);
  pinMode(15, INPUT);
  pinMode(led_button, OUTPUT);
  pinMode(buzzer, OUTPUT);
}
void loop() {
  int analogValue = analogRead(15);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  Serial.print("Temperature: ");
  Serial.print(celsius);
  Serial.println(" ℃");
  if (celsius >= 35) {
    digitalWrite(led_button, HIGH);
    tone(buzzer, 150);
  }

  else {
    digitalWrite(led_button, LOW);
    noTone(buzzer);
  }

  delay(500);
}