Buzzer Exercises

1.
void setup() {
  for(int i=1000; i<=10000; i+=1000){
    tone(8, i, 200);
    delay(200);
    noTone(8);
    delay(200);
  }
}

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

}

2.
void setup() {
  pinMode(9, OUTPUT);
  for(int i=1000; i<=10000; i+=1000){
    tone(8, i, 200);
    digitalWrite(9, LOW);
    delay(200);
    noTone(8);
    digitalWrite(9, HIGH);
    delay(200);
  }

}

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

}

3.
void setup() {
  pinMode(9, OUTPUT);
  pinMode(13, OUTPUT);
  int sw=1;
  for(int i=1000; i<=10000; i+=1000){
    tone(8, i, 200);
    if(sw==1){
      digitalWrite(9, LOW);
      digitalWrite(13, HIGH);
      sw=0;
    }
    else{
      digitalWrite(9, HIGH);
      digitalWrite(13, LOW);
      sw=1;
    }
    delay(200);
    noTone(8);
    delay(200);
  }

}

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

}