// Pin configuration
const int buzzerPin = 9;  // Connect your buzzer to pin 9

// Note frequencies (in Hz)
#define NOTE_MI  330
#define NOTE_RE  294
#define NOTE_DO  262
#define NOTE_SOL  392  // Frequency for Sol

// Note durations (in milliseconds)
#define DURATION 450

void setup() {
  // Set buzzer pin as output
  pinMode(buzzerPin, OUTPUT);
}

// Function to play a note
void playNote(int note, int duration) {
  tone(buzzerPin, note, duration);  // Play the note
  delay(duration);  // Pause for the note's duration
  noTone(buzzerPin);  // Stop the tone
  delay(50);  // Short pause between notes
}

void loop() {
  // Play the melody: mi re do re mi mi mi mi re re mi re do
  playNote(NOTE_MI, DURATION);  // mi
  playNote(NOTE_RE, DURATION);  // re
  playNote(NOTE_DO, DURATION);  // do
  playNote(NOTE_RE, DURATION);  // re
  playNote(NOTE_MI, DURATION);  // mi
  playNote(NOTE_MI, DURATION);  // mi
  playNote(NOTE_MI, DURATION);  // mi

  // Add a 1-second pause after the last "mi mi mi"
  delay(400);  // Wait 2 seconds

  // Play "re re re"
  playNote(NOTE_RE, DURATION);  // re
  playNote(NOTE_RE, DURATION);  // re
  playNote(NOTE_RE, DURATION);  // re
  
  // Add a 1-second pause after "re re re"
  delay(400);  // Wait 1 second

  // Play "mi sol sol"
  playNote(NOTE_MI, DURATION);  // mi
  playNote(NOTE_SOL, DURATION);  // sol
  playNote(NOTE_SOL, DURATION);  // sol
delay(400); 
  // Play the melody: mi re do re mi mi mi mi re re mi re do
  playNote(NOTE_MI, DURATION);  // mi
  playNote(NOTE_RE, DURATION);  // re
  playNote(NOTE_DO, DURATION);  // do
  playNote(NOTE_RE, DURATION);  // re
  playNote(NOTE_MI, DURATION);  // mi
  playNote(NOTE_MI, DURATION);  // mi
  playNote(NOTE_MI, DURATION);  // mi
  playNote(NOTE_RE, DURATION);  // re
  playNote(NOTE_RE, DURATION);  // re
  playNote(NOTE_MI, DURATION);  // mi
  playNote(NOTE_RE, DURATION);  // re
  playNote(NOTE_DO, DURATION);  // do

  // Add a delay before repeating the melody
  delay(1500);  // Wait 1.5 seconds before repeating
}