#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

void setup() {

  // Init
  lcd.init();
  lcd.backlight();

  // Print something
  lcd.setCursor(5, 0);
  lcd.print(""); 
  lcd.print("The LED is");
lcd.setCursor(6, 1);
  lcd.print("Blinking");
  delay(900);

lcd.clear();
delay(1000);
lcd.setCursor(0, 0);
  lcd.print(""); 
  lcd.print("The Blue, red and ");
  lcd.setCursor(3, 1);
  lcd.print(" yellow LED ");
  lcd.setCursor(3, 2);
  lcd.print("are Blinking");

}

void loop() {
  digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(500);                       // wait for a second
  digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW
  delay(500);                      // wait for a second

  digitalWrite(12, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(500);                       // wait for a second
  digitalWrite(12, LOW);    // turn the LED off by making the voltage LOW
  delay(500);                      // wait for a second

  digitalWrite(11, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(500);                       // wait for a second
  digitalWrite(11, LOW);    // turn the LED off by making the voltage LOW
  delay(500);                      // wait for a second
}