void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(4, INPUT);
  pinMode(5, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int Tombol = digitalRead(4);
  Serial.print("nilai tombol : ");
  Serial.println(Tombol);
  if (Tombol == 1 ){
   digitalWrite(5, HIGH);
  }
  else 
 {digitalWrite(5, LOW);} 
  delay(100); // this speeds up the simulation
}