unsigned long timer;
boolean ledState = 0;
int cpt_led = 0;

void setup() {
   pinMode(13, OUTPUT);
   Serial.begin(9600);
   timer = millis();
}
 
void loop() {
   if (millis() - timer >= 2000) {
      ledState=!ledState; // changer l'état de la LED
      digitalWrite(13, ledState);
      timer = millis();
      cpt_led++;
    Serial.print("Time: ");
    Serial.println(timer);
    Serial.print("Led=");
    Serial.println(ledState);
    Serial.print("Cpt=");
    Serial.println(cpt_led);

    if (ledState == 1) {
    Serial.print("Led ON");
    }
    else {
    Serial.print("Led OFF");
   }
   }
  
    

   //Serial.print("Temps : ");
   //Serial.println(millis());
}