#define PB1 13
const int Led1 = 15;

void setup() {
  Serial.begin(115200);
  pinMode(Led1, OUTPUT);
  pinMode(PB1, INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run repeatedly:
  char StatePB1 = digitalRead(PB1);
  if (StatePB1 == LOW)
  {
  digitalWrite(Led1,LOW);
  Serial.println("Tombol di Tekan");
  delay(200);
}
if (StatePB1 == HIGH)
{
  digitalWrite(Led1, HIGH);
}

delay(100); //this speeds up the simulation
}