12_timer1_piezo

#include <TimerOne.h>
const int BUZZER = 10;
const int melody[] = {262,294,330,349,393,440,494,523,};

void setup() {
  // put your setup code here, to run once:
  Timer1.initialize();
  Timer1.pwm(BUZZER,0);
  Timer1.setPwmDuty(BUZZER,100);
  for (int note = 0; note<8; note++) {
    Timer1.setPeriod(1000000/melody[note]);
    delay(500);
  }
  Timer1.setPwmDuty(BUZZER,0);
}

void loop() {
  // put your main code here, to run repeatedly:
}