boolean flag = false;
boolean buttonOld = true;
boolean buttonNew;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(14, INPUT);
  digitalWrite(14,HIGH);
  pinMode(27, OUTPUT);
}

void loop() {
  Serial.println(digitalRead(14));
  buttonNew = digitalRead(14);
  if(buttonOld == false && buttonNew == true){
    flag = !flag;
    digitalWrite(27,flag);
  }
  buttonOld = buttonNew;
    
  //delay(10); // this speeds up the simulation
}