const int ledPin = 12;
const int buzzerPin = 9;
void setup() {
 
  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
}

void loop() {
 
  for (int i = 0; i < 7; i++) 
  
  {
    digitalWrite(ledPin, HIGH); 
    tone(buzzerPin, 300);
    delay(500); 
    
    digitalWrite(ledPin, LOW); 
    noTone(buzzerPin); 
    delay(500); 
    
  }

  
  delay(5000); 
}