Arduino2

// the setup function runs once when you press reset or power the board
int ledPin = 12;
int i = 0;
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(ledPin, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  digitalWrite(ledPin, LOW);
  delay(1000);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  digitalWrite(ledPin, HIGH);
  delay(1000);                       // wait for a second
  i++;
  if (i == 10) {
    digitalWrite(ledPin, LOW);
    exit(0);
  }
}