}
void loop () {
tone(buzzer, 262); //output the sound with frequency of 262Hz
delay(250); //delay in 250ms
tone(buzzer, 294);; //output the sound with frequency of 294Hz
delay(250); //delay in 250ms
tone(buzzer, 330);
delay(250);
tone(buzzer, 349);
delay(250);
tone(buzzer, 392);
delay(250);
tone(buzzer, 440);
delay(250);
tone(buzzer, 494);
delay(250);
tone(buzzer, 532);
delay(250);
noTone(buzzer); //stop sound output
delay(1000);
}