const float ADC_VREF_V = 5.0; // Tension de référence de l'ADC en volts (5 V)
const int ADC_RESOLUTION = 4095; // Résolution de l'ADC (2^12 - 1)
const int LM35 = 15;
const byte pinRed = 2; // Pin connected to the red LED
const byte pinJaune = 4; // Pin connected to the red LED

void setup()
{
  pinMode(LM35, INPUT);
  pinMode(pinRed, OUTPUT); // Set the red LED pin as an output
  Serial.begin(115200);
  digitalWrite(pinRed, LOW); 
  digitalWrite(pinJaune, LOW); 

}

void loop() {
  int ADC;
  float temp;
  ADC = analogRead(LM35);

  // Calculer la tension en volts
  float voltage = ADC * (ADC_VREF_V / ADC_RESOLUTION);

  // Calculer la température en degrés Celsius
  temp = voltage * 100.0;

  Serial.print("Tension = ");
  Serial.print(voltage);
  Serial.println(" V");

  Serial.print("Température = ");
  Serial.print(temp);
  Serial.println(" °C");
 if (temp >= 3.0) { 
    digitalWrite(pinRed, HIGH); 
    digitalWrite(pinJaune, LOW); 
   }else{
    digitalWrite(pinRed, LOW); 
    digitalWrite(pinJaune, HIGH); 

   }
  delay(1000);
}