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

LiquidCrystal_I2C lcd(0x27, 16, 2); 
int A = 14;    
int B = 12; 
int C = 13;  

void setup() {
  lcd.init();       
  lcd.backlight(); 
  pinMode(14, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
}

void loop() {

  lcd.setCursor(5, 0);
  lcd.print("RED");
  digitalWrite(A, HIGH);
  digitalWrite(B, LOW);
  digitalWrite(C, LOW);
  delay(1000);

  lcd.setCursor(5,0);
  lcd.print("BLUE");
  digitalWrite(A, LOW);
  digitalWrite(B, HIGH);
  digitalWrite(C, LOW);
  delay(1000);

  lcd.setCursor(5,0);
  lcd.print("GREEN");
  digitalWrite(A, LOW);
  digitalWrite(B, LOW);
  digitalWrite(C, HIGH);
  delay(1000);
}