//Bel Sederhana menggunakan arduino 

void setup() {
  pinMode (8, INPUT);
  pinMode(5, OUTPUT);
}

void loop() {
  int Switch_State=digitalRead(8);
  if(Switch_State==HIGH){
    digitalWrite(5, HIGH);
    tone(5,1000);
  }
  else{
    digitalWrite(5,LOW);
    noTone(5);
  }
}