//SERIAL PRINT

int BTN = 12;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(BTN, INPUT_PULLUP); //so pin 12 is HIGH
}

void loop() {
  // put your main code here, to run repeatedly:
  //Serial.println(digitalRead(BTN));
  //delay(1000);
  {
    if (digitalRead(BTN) == LOW)
    {
      Serial.println("The button is pressed. The LED is on.");
      digitalWrite(LED_BUILTIN, HIGH);
      delay(1000);
    }
    else
    {
      digitalWrite(LED_BUILTIN, LOW);
      Serial.println("The button is not pressed and the LED is off.");
      delay(1000);
    }
  }
}