Week12

按按鈕會發出聲音

程式碼:

void setup(){

  pinMode(2,INPUT_PULLUP);

  pinMode(13,OUTPUT);

}

void loop(){

if(digitalRead(2)==HIGH){

digitalWrite(13,HIGH);

tone(8,440*2,300);

}

else{

digitalWrite(13,LOW);

noTone(8);

}

}