void setup() {
  // put your setup code here, to run once:
pinMode(A0, INPUT);
pinMode(8, OUTPUT);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
 const float BETA = 3950;
    int analogValue = analogRead(A0);
    float sicaklik_deger = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;

Serial.print("Sicaklik: ");
Serial.print(sicaklik_deger);
Serial.println("C");

delay(90);


    if(sicaklik_deger<28)
    {

        digitalWrite(8, LOW);
    }
    else
    {

        digitalWrite(8, HIGH);


    }
}