#define LED_RED 8
#define LED_BLUE 7

const float BETA = 3950; // should match the Beta Coefficient of the thermistor

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

void loop() {
  int analogValue = analogRead(A5);
  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 > 15){
    digitalWrite(LED_RED, HIGH);
    digitalWrite(LED_BLUE, LOW);
  }
  else if(celsius < 15){
    digitalWrite(LED_RED, LOW);
    digitalWrite(LED_BLUE, HIGH);
  }
  delay(1000);
}