#define BUTTON_PIN 25   // Input pin (button)
#define LED_PIN 18      // Output pin (LED)
void setup()
{
  
  Serial.begin(115200);
  
}

void loop() 
{
  int x;
  Serial.println("Hello, ESP32!");
  x=digitalRead(BUTTON_PIN);
  Serial.println(x);
  delay(200);
}