const float BETA = 3950; // should match the Beta Coefficient of the thermistor
int LED = 3; // should match the Beta Coefficient of the thermistor
int LED_T = 2; // should match the Beta Coefficient of the thermistor
int LED_E = 5; // should match the Beta Coefficient of the thermistor

void setup() {
  Serial.begin(9600);
  pinMode(LED, OUTPUT);
  pinMode(LED_T, OUTPUT);
  pinMode(LED_E, OUTPUT);
}

void loop() {
  int analogValue = analogRead(A0);
  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 > 70){
    digitalWrite(LED,HIGH);
    digitalWrite(LED_E,LOW);
    digitalWrite(LED_T,LOW);
  }else if(celsius > 0 &&celsius < 70  ){
    digitalWrite(LED,LOW);
    digitalWrite(LED_T,LOW);
    digitalWrite(LED_E,HIGH);
  }else if(celsius < 0){
    digitalWrite(LED_T,HIGH);
    digitalWrite(LED_E,LOW);
    digitalWrite(LED,LOW);
  }
  
  // delay(1000);
}