int diode = 8;

void setup() {
  // put your setup code here, to run once:
pinMode(diode, OUTPUT);
for(int compteur=0;compteur<10;compteur++){
digitalWrite(diode,HIGH);
 delay (1000);
digitalWrite(diode,LOW);
 delay (1000);
}
}

void loop() {
  // put your main code here, to run repeatedly:

}