const int buzzerPin = 6; 
void setup() {
 
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(12, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100);                       // wait for a second
  digitalWrite(12, LOW);    // turn the LED off by making the voltage LOW
  delay(100); 
  tone(buzzerPin, 1000);
  
  delay(100);     
  noTone(buzzerPin); 
   delay(100); // wait for a second
  digitalWrite(11, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100);                       // wait for a second
  digitalWrite(11, LOW);    // turn the LED off by making the voltage LOW
  delay(100);
  tone(buzzerPin, 8000);
  
  delay(100);     
  noTone(buzzerPin); 
   delay(100); // wait for a second
  digitalWrite(10, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100);                       // wait for a second
  digitalWrite(10, LOW);    // turn the LED off by making the voltage LOW
  delay(100);  
  tone(buzzerPin, 6000);
  
  delay(100);     
  noTone(buzzerPin); 
   delay(100); // wait for a second
  digitalWrite(9, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100);                       // wait for a second
  digitalWrite(9, LOW);    // turn the LED off by making the voltage LOW
  delay(100);  
  tone(buzzerPin, 4000);
  
  delay(100);     
  noTone(buzzerPin); 
   delay(100); // wait for a second
  digitalWrite(8, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100);                       // wait for a second
  digitalWrite(8, LOW);    // turn the LED off by making the voltage LOW
  delay(100);  
  tone(buzzerPin, 3000);
  
  delay(100);     
  noTone(buzzerPin); 
   delay(100); // wait for a second
  digitalWrite(7, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100);                       // wait for a second
  digitalWrite(7, LOW);    // turn the LED off by making the voltage LOW
  delay(100); 
 tone(buzzerPin, 2000);
  
  delay(100);     
  noTone(buzzerPin); 
   delay(100); 
}