const int pinLED = 33;
const int button = 18;
bool state = false ;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(pinLED, OUTPUT);
  pinMode(button, INPUT_PULLUP);
  Serial.println("Hello, ESP32!");
}

void loop() {
  
  Serial.println(state);
  if (digitalRead(button) == LOW && state == false){
      state = true;
  }else if (digitalRead(button) == LOW && state == true){
      state = false;
  }
  if(state == false){
    digitalWrite(pinLED, LOW);
  }
  if(state == true){
    digitalWrite(pinLED, HIGH);
  }
  delay(100);
}
//button pin pullup