Week 12

Example : Button

按了燈會亮

void setup(){

  pinMode(2, INPUT_PULLUP);

  pinMode(13,OUTPUT) ;

}

void loop(){

 if(digitalRead(2)==HIGH){

  digitalWrite(13,HIGH);

  tone(8,1000,300);

 }

else{

 digitalWrite(13,LOW);

noTone(8); 

}

}