#include <LiquidCrystal_I2C.h>
#include <RotaryEncoder.h>

RotaryEncoder encoder(2,3);

#define ENC_SW 4

int currentPosition=0;
int lastPosition=0;

LiquidCrystal_I2C lcd(0x27, 16,2);

void setup() {
  // put your setup code here, to run once:
  lcd.init();
  lcd.backlight();
  pinMode(ENC_SW, INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run repeatedly:
  encoder.tick();
  currentPosition=encoder.getPosition();

  if(currentPosition!=lastPosition){
   if(currentPosition<lastPosition){
    lcd.clear();
    lcd.write(126);
    delay(200);
   } 
   else{
    lcd.clear();
    lcd.write(127);
    delay(200);
   }

   lastPosition=currentPosition;
   lcd.display();
  }

  if(!digitalRead(ENC_SW)){
    lcd.clear();
    lcd.write(94);
    lcd.display();
    delay(200);
  }
}