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

// dot function - 1 sec ON
void dot() {
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000);                        // ON for 1 sec
  digitalWrite(LED_BUILTIN, LOW);
  delay(500);                         // OFF for 0.5 sec
}

// dash function - 2 sec ON
void dash() {
  digitalWrite(LED_BUILTIN, HIGH);
  delay(2000);                        // ON for 2 sec
  digitalWrite(LED_BUILTIN, LOW);
  delay(500);                         // OFF for 0.5 sec
}

// the loop function runs over and over again forever
void loop() {
  // spells out SARAH
  
  // S = ...
  for(int i = 0; i < 3; i++) {   // for loop, repeats dot() 3 times
    dot();  
  }
  delay(3000);                   // 3 sec delay between letters
  
  // A = .-
  dot();
  dash();
  delay(3000);                   // 3 sec delay between letters

  // R = .-.
  dot();
  dash();
  dot();
  delay(3000);                   // 3 sec delay between letters

  // A = .-
  dot();
  dash();
  delay(3000);                   // 3 sec delay between letters

  // H = ....
  for(int i = 0; i < 4; i++) {   // for loop, repeats dot() 4 times
    dot();  
  }
  delay(5000);                   // 5 sec delay at end of word

}