int led = 13;
int tombol = 0;
void setup() {
  // put your setup code here, to run once:
pinMode(led, OUTPUT);
pinMode(tombol, INPUT_PULLUP);
3
}

void loop() {
  // put your main code here, to run repeatedly:
  int baca = digitalRead(tombol)
  if (baca==LOW){
    digitalWrite(led, HIGH);
}
if(baca==HIGH){
  digitalWrite(led, LOW);