#define led_PIN 2
 #define led_PIN 4
void setup() {
  // put your setup code here, to run once:
  pinMode(2,OUTPUT);
  pinMode(4,OUTPUT);
  pinMode(16, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int button = digitalRead(16);
  if (button == HIGH){
 digitalWrite(2, HIGH);
   digitalWrite(4, HIGH); 

  }
  else{
digitalWrite(4, LOW);  // Éteint la LED (LOW = 0V)       // Allume la LED (HIGH = 3.3V)                  // Attend 500 millisecondes (0.5 seconde)
  digitalWrite(2, LOW);  // Éteint la LED (LOW = 0V)
 
  }
 // Allume la LED (HIGH = 3.3V)                 // Attend 500 millisecondes (0.5 seconde)
         
          // Attend 500 millisecondes
}