int tombol =6, led = 2;
void setup() {
  // put your setup code here, to run once:
 pinMode(tombol, INPUT);
 pinMode(led, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int val = digitalRead(tombol);

  if (val == 0){
    digitalWrite(led, HIGH);

  }
  else{
    digitalWrite(led, LOW);
  }
}