#4.4.4.1. 예제 

void setup() {

tone(11, 392, 1000);

delay(1000);

tone(11, 392, 1000);

delay(1000);

tone(11, 440, 1000);

delay(1000);

tone(11, 440, 1000);

delay(1000);

tone(11, 392, 1000);

delay(1000);

tone(11, 392, 1000);

delay(1000);

tone(11, 330, 2000);

delay(2000);

}

void loop() {

}