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

LiquidCrystal_I2C lcd (0x27, 16, 2 );

void setup() {
  // put your setup code here, to run once:

pinMode(8, OUTPUT);
pinMode(7, OUTPUT);
pinMode(6, OUTPUT);

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

}

void loop() {
  // put your main code here,to run repeatedly:

digitalWrite(8, HIGH);
lcd.setCursor(0, 0);
lcd.print("Red diode");
lcd.setCursor(1, 1);
lcd.print("is ON");
delay(1000);
digitalWrite(8, LOW);
digitalWrite(7, HIGH);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Yellow diode");
lcd.setCursor(1, 1);
lcd.print("is ON");
delay(1000);
digitalWrite(7, LOW);
digitalWrite(6, HIGH);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Green diode");
lcd.setCursor(1, 1);
lcd.print("is ON");
delay(1000);
digitalWrite(6, LOW);
lcd.clear();
}