//This code uses:
// LiquidCrystal_I2C and Wire library.
// Pins 14 and 15 as SDA and SCL.
// This code makes the i2c display blink its backlight for 1 second and writes "hello" during setup and "world" during loop.
// Autor: Antonio de Jesus Anaya Hernandez
// Fab-Academy: 2021 Agrilab
// Country: France

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

LiquidCrystal_I2C lcd(0x27,20,4);

void setup() {
  Wire.begin();
  //setup lcd and write hello
  lcd.init();
}

void loop() {
  lcd.backlight();
  lcd.setCursor(1,2);
  lcd.print("world");
  delay(1000);
  lcd.noBacklight();
  delay(1000);
}