// 1.2 Change the program to blink on and off 5 times then stop for 3 seconds. Each blink should be 0.5s
int ledPin = D3;

void setup() {
  // We want to tell the Argon that we'll use
  // D3 as an output pin.
  pinMode(ledPin, OUTPUT);
}

void loop() {
    for (int i=0; i<5; i++) {
        digitalWrite(ledPin, HIGH);   // Turn ON the LED pins
        delay(500);               

        // Now... Off
        digitalWrite(ledPin, LOW);   // Turn OFF the LED pins
        delay(500);   
                
    }
    delay(3000);
}