#define tmpPin A0
#define redLed 12
#define greenLed 11
#define blueLed 10

const int redThreshold = 30;
const int greenThreshold = 20;
const int blueThreshold = 10;
float voltage = 0.0;
float temperature = 0.0;

void setup() {;
  pinMode(redLed, OUTPUT);
  pinMode(greenLed, OUTPUT);
  pinMode(blueLed, OUTPUT);

  Serial.begin(9600);
  voltage = 0.0;
  temperature = 0.0;
  for (int i=0; i<500; i++){
  voltage = analogRead(A0)*(5.0/1023.0)*1000.0;
  temperature += (voltage-500)/10-1;
  delay(40);
  }
  Serial.print("Voltage: ");
  Serial.print(voltage);
  Serial.print("  Temperature: ");
  Serial.println(temperature/500);

  if (temperature > redThreshold){
    digitalWrite(redLed, HIGH);
  }else if (temperature > greenThreshold){
    digitalWrite(greenLed, HIGH);
  }else{
    digitalWrite(blueLed, HIGH);
  }
}

void loop() {
}