int buttonPin = 25;
int ledPin = 5;
bool currentStateButton;
bool lastStateButton;
bool ledState;

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

void loop() {
  // put your main code here, to run repeatedly:
  lastStateButton = currentStateButton;
  currentStateButton = digitalRead(buttonPin);
  Serial.print("currentStateButton =");
  Serial.println(currentStateButton);
  digitalWrite(LED_BUILTIN, currentStateButton);

  if(lastStateButton == LOW && currentStateButton ==HIGH){
    Serial.println("Button is Pressed");
    ledState = !ledState;
    digitalWrite(ledPin, ledState);
  }
  
  delay(10); // this speeds up the simulation
}