#include <TinyWireM.h>                 
#include "LiquidCrystal_I2C.h"         
#define GPIO_ADDR     0x27             
LiquidCrystal_I2C lcd(GPIO_ADDR, 16, 2); 

void setup() {
  TinyWireM.begin();
  lcd.init();                           
  lcd.backlight();                      
  lcd.print("teste RGB");
  lcd.setCursor(0, 1);                  
  lcd.print("cor --> LCD");
  delay (2000);
  lcd.clear();
}

void loop() {

  digitalWrite(3, HIGH);


}