#include <Servo.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

Servo puerta;

int boton = D3;
int led = D2;

LiquidCrystal_I2C lcd(0x27,16,2);

void setup() {

pinMode(boton, INPUT_PULLUP);
pinMode(led, OUTPUT);

puerta.attach(D9);

lcd.init();
lcd.backlight();

puerta.write(0);
lcd.setCursor(0,0);
lcd.print("Puerta cerrada");

}

void loop() {

if(digitalRead(boton) == LOW){

digitalWrite(led, HIGH);

puerta.write(90);

lcd.clear();
lcd.setCursor(0,0);
lcd.print("Puerta abierta");

delay(2000);

}
else{

digitalWrite(led, LOW);

puerta.write(0);

lcd.setCursor(0,0);
lcd.print("Puerta cerrada");

}

}