int led=13;
int bottonpin=4;
int newbotton=0;

void setup(){
  pinMode(13,OUTPUT);
  pinMode(4,INPUT);

}

void loop(){
  newbotton=digitalRead(bottonpin);
  if (newbotton==HIGH){
    digitalWrite(led,HIGH);
    delay(1000);
  }
  else{
    digitalWrite(led,LOW);
    delay(1000);
  }
}