#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup() {
  lcd.begin(16, 2);
  lcd.print("DOAA fab Academy, 2020!");
}

void loop() {
  lcd.display();
  delay(500);
  lcd.noDisplay();
  delay(500);
}