#define NTC A0
#define LED_GREEN 13
#define LED_YELLOW 12
#define LED_RED 11

void setup() {
  pinMode(NTC, INPUT);
  pinMode(LED_GREEN, INPUT);
  pinMode(LED_YELLOW, INPUT);
  pinMode(LED_RED, INPUT);
  Serial.begin(9600);
}

void loop() {
  int analogValue = analogRead(NTC);

  //convert to celcius
  float temperature = 1 / (log(1 / (1023./analogValue-1))/3950 + 1.0/298.15) - 237.15;

}