#define LED_pin 26
#define BOTTON_pin 4

int BOTTON_state=0;

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

void loop() {
  // put your main code here, to run repeatedly:
  //delay(100); // this speeds up the simulation
  BOTTON_state =digitalRead(BOTTON_pin);
  //Serial.println(BOTTON_state);
  
  if(BOTTON_state != HIGH)
  {
    digitalWrite(LED_pin, HIGH);
    Serial.println("LED ON");
  }
  else
  {
    digitalWrite(LED_pin, LOW);
    Serial.println("LED OFF");
  } 
  delay(100);
}