#include <LiquidCrystal_I2C.h>
#include <Wire.h>
#include <Servo.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
int i = 0;
Servo servomotor;

void setup() {
  pinMode(2, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);

  lcd.init();
  lcd.backlight();
  lcd.print("Iniciando...");
  delay(2000);
  servomotor.attach(3);

}

void loop() {
  lcd.clear();
  if (i >= 0 && i <= 3) {
    lcd.print("PREPARENSE");
    servomotor.write(0);
    digitalWrite(2, HIGH);
    delay(400);
    digitalWrite(4, HIGH);
    delay(400);
    digitalWrite(7, HIGH);
    delay(400);
    digitalWrite(8, HIGH);
    delay(400);
    digitalWrite(12, HIGH);
    delay(400);
    i += 1; 

    digitalWrite(2, LOW);
    digitalWrite(4, LOW);
    digitalWrite(7, LOW);
    digitalWrite(8, LOW);
    digitalWrite(12, LOW);
    delay(200);

  } else if (i == 4) {
    lcd.print("EN SUS MARCAS...");
    digitalWrite(2, HIGH);
    delay(400);
    digitalWrite(4, HIGH);
    delay(400);
    digitalWrite(7, HIGH);
    delay(400);
    digitalWrite(8, HIGH);
    delay(400);
    digitalWrite(12, HIGH);
    delay(400);

    digitalWrite(2, LOW);
    digitalWrite(4, LOW);
    digitalWrite(7, LOW);
    digitalWrite(8, LOW);
    digitalWrite(12, LOW);
    digitalWrite(13, LOW);

    i += 1;

  } else if (i == 5) { 
    lcd.print("LISTOS...");
        digitalWrite(2, HIGH);
    delay(400);
    digitalWrite(4, HIGH);
    delay(400);
    digitalWrite(7, HIGH);
    delay(400);
    digitalWrite(8, HIGH);
    delay(400);
    digitalWrite(12, HIGH);
    delay(400);

    digitalWrite(2, LOW);
    digitalWrite(4, LOW);
    digitalWrite(7, LOW);
    digitalWrite(8, LOW);
    digitalWrite(12, LOW);
    digitalWrite(13, LOW);
    i += 1;

  } else if (i == 6) {
      digitalWrite(2, HIGH);
    delay(400);
    digitalWrite(4, HIGH);
    delay(400);
    digitalWrite(7, HIGH);
    delay(400);
    digitalWrite(8, HIGH);
    delay(400);
    digitalWrite(12, HIGH);
    delay(400);
    digitalWrite(13, HIGH);
    lcd.print("FUERA!");
    servomotor.write(90);
    delay(3000);

    digitalWrite(2, LOW);
    digitalWrite(4, LOW);
    digitalWrite(7, LOW);
    digitalWrite(8, LOW);
    digitalWrite(12, LOW);
    digitalWrite(13, LOW);
    i = 0;  
    servomotor.write(0);
  }
}