//Testing Buzzer on the EduBase V2 
/* This program sends 440 Hz signal to the buzzer 
 * It uses Arduino function tone() to drive pin 9 at 440 Hz. 
 * On EduBase V2, Pin 9 is connected to the speaker buzzer.
 */
const int BUZZER = 9;

void setup() {                
}
void loop() {
    /* send 440 Hz signal to buzzer for a second */
    tone(BUZZER, 440);
    delay(1000);
    /* turn off output to buzzer for a second */
    noTone(BUZZER);
    delay(1000);
}