int ledPin = 13;

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);

}

//This is OUR OWN function. It takes one input: how long to wait.
void blinkOnce(int waitTime){
digitalWrite(ledPin, HIGH);
delay(waitTime);
digitalWrite(ledPin, LOW);
delay(waitTime);

}



void loop() {
  Serial.println("Fast blink");
  blinkOnce(100);  //call our function- fast blink


  Serial.println("Medium blink");
  blinkOnce(300);  // call our function - medium blink


  Serial.println("Slow blink");
blinkOnce(800);  //call our function- slow blink

delay(2000);  // pause for 2 seconds before repeating
}