int button=12;
int led=13;
int buttonState=0;

void setup() {
  // put your setup code here, to run once:
pinMode(button, INPUT);
pinMode(led, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
buttonState = digitalRead(button);
if(buttonState==true) {
  digitalWrite(led, true);
}
else{
  digitalWrite(led, false);
}
}