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

// Instancias
LiquidCrystal_I2C lcd(0x27, 16, 2);
Servo servo_9;

// Botones
const int boton1 = 2;
const int boton2 = 3;
const int boton3 = 4;
const int buzzer = 5;

// Led
const int led = 8;

void setup(){
  servo_9.attach(9);
  
  pinMode(boton1, INPUT_PULLUP);
  pinMode(boton2, INPUT_PULLUP);
  pinMode(boton3, INPUT_PULLUP);
  pinMode(led, OUTPUT);
  pinMode(buzzer, OUTPUT);

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

  digitalWrite(led, LOW);

  lcd.print("Bienvenido");
}

void loop(){
  int estadoBoton1 = digitalRead(boton1);
  int estadoBoton2 = digitalRead(boton2);
  int estadoBoton3 = digitalRead(boton3);

  if (estadoBoton1 == LOW) {
    lcd.clear();
    lcd.print("LED ENCENDIDO");
    digitalWrite(led, HIGH);
    delay(3000);
    lcd.clear();
    lcd.print("LED APAGADO");
    digitalWrite(led, LOW);
    delay(1500);
    lcd.clear();
  }

  if (estadoBoton2 == LOW) {
    lcd.clear();
    lcd.print("SERVO EN");
    lcd.setCursor(0, 1);
    lcd.print("MOVIMIENTO");
    servo_9.write(180);
    delay(3000);
    lcd.clear();
    lcd.print("SERVO EN");
    lcd.setCursor(0, 1);
    lcd.print("REPOSO");
    delay(1500);
    lcd.clear();
  }

  if (estadoBoton3 == LOW) {
    lcd.clear();
    lcd.print("BUZZER ENCENDIDO");
    digitalWrite(buzzer, HIGH);
    delay(2000);
    lcd.clear();
    lcd.print("BUZZER APAGADO");
    digitalWrite(buzzer, LOW);
    delay(1500);
    lcd.clear();
  }
}