void setup() {
  pinMode(13, OUTPUT); // Initialize digital pin 13 as an output
}

void loop() {
  // Blink "favourite teachers name" in Morse code
  BlinkF(); // F
  delay(900);
  BlinkA(); // A
  delay(900);
  BlinkV(); // V
  delay(900);
  BlinkO(); // O
  delay(900);
  BlinkU(); // U
  delay(900);
  BlinkR(); // R
  delay(900);
  BlinkI(); // I
  delay(900);
  BlinkT(); // T
  delay(900);
  BlinkE(); // E


  delay(1000); // Space between words

  BlinkT(); // T
  delay(900);
  BlinkE(); // E
  delay(900);
  BlinkA(); // A
  delay(900);
  BlinkC(); // C
  delay(900);
  BlinkH(); // H
  delay(900);
  BlinkE(); // E
  delay(900);
  BlinkR(); // R
  delay(900);
  BlinkS(); // S

  delay(1000); // Space between words

  BlinkN(); // N
  delay(900);
  BlinkA(); // A
  delay(900);
  BlinkM(); // M
  delay(900);
  BlinkE(); // E

  delay(5000); // Wait 5 seconds before repeating
}

void BlinkF() {
  BlinkDot(); BlinkDot(); BlinkDash(); BlinkDot(); // F: ..-.
  delay(900); // Space between letters
}

void BlinkA() {
  BlinkDot(); BlinkDash(); // A: .-
  delay(900); // Space between letters
}

void BlinkV() {
  BlinkDot(); BlinkDot(); BlinkDot(); BlinkDash(); // V: ...-
  delay(900); // Space between letters
}

void BlinkO() {
  BlinkDash(); BlinkDash(); BlinkDash(); // O: ---
  delay(900); // Space between letters
}

void BlinkU() {
  BlinkDot(); BlinkDot(); BlinkDash(); // U: ..-
  delay(900); // Space between letters
}

void BlinkR() {
  BlinkDot(); BlinkDash(); BlinkDot(); // R: .-.
  delay(900); // Space between letters
}

void BlinkI() {
  BlinkDot(); BlinkDot(); // I: ..
  delay(900); // Space between letters
}

void BlinkT() {
  BlinkDash(); // T: -
  delay(900); // Space between letters
}

void BlinkE() {
  BlinkDot(); // E: .
  delay(900); // Space between letters
}

void BlinkC() {
  BlinkDash(); BlinkDot(); BlinkDash(); BlinkDot(); // C: -.-.
  delay(900); // Space between letters
}

void BlinkH() {
  BlinkDot(); BlinkDot(); BlinkDot(); BlinkDot(); // H: ....
  delay(900); // Space between letters
}

void BlinkS() {
  BlinkDot(); BlinkDot(); BlinkDot(); // S: ...
  delay(900); // Space between letters
}

void BlinkN() {
  BlinkDash(); BlinkDot(); // N: -.
  delay(900); // Space between letters
}

void BlinkM() {
  BlinkDash(); BlinkDash(); // M: --
  delay(900); // Space between letters
}

void BlinkDot() {
  digitalWrite(13, HIGH); // Turn the LED on
  delay(200);             // Wait 200 ms (dot duration)
  digitalWrite(13, LOW);  // Turn the LED off
  delay(100);             // Wait 200 ms between dot/dash
}

void BlinkDash() {
  digitalWrite(13, HIGH); // Turn the LED on
  delay(1200);             // Wait 1200 ms (dash duration)
  digitalWrite(13, LOW);  // Turn the LED off
  delay(100);             // Wait 1200 ms between dot/dash
}