//interface button with arduino
//required Components
//1.Arduino Uno
//2.LED or Buzzer
//3.Switch Button or Push Button
//4.USB Cable

void setup() {
  pinMode(13,OUTPUT);
  pinMode(2,INPUT);

}

void loop() {
 if(digitalRead(2)==0)
 {
  digitalWrite(13,HIGH);
 }
 else{
  digitalWrite(13,LOW);
 }

}