#include <MsTimer2.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <OneButton.h>

volatile int i;
volatile int counter;
LiquidCrystal_I2C mylcd(0x27,16,2);
OneButton button4(4,true);

byte arows[]={0B00000,0B10000,0B10100,0B10010,0B11111,0B00010,0B00100,00000};
byte null[]={0B00000,0B00000,0B00000,0B00000,0B00000,0B00000,0B00000,00000};
void msTimer2_func() {
  i = i + 1;
  counter++;

}

void attachClick4() {
  MsTimer2::start();
}

void attachLongPressStart4() {
  MsTimer2::stop();
}

void attachDoubleClick4() {
  counter = 0;
}

void setup(){
  mylcd.createChar(0, arows);
  mylcd.createChar(1, null);
  MsTimer2::set(300, msTimer2_func);
  i = 0;
  counter = 0;
  mylcd.init();
  mylcd.backlight();
  button4.attachClick(attachClick4);
  button4.attachLongPressStart(attachLongPressStart4);
  button4.attachDoubleClick(attachDoubleClick4);
}

void loop(){
  mylcd.setCursor(4-1, 1-1);
  mylcd.print("Counter:");
  mylcd.setCursor(6-1, 2-1);
  mylcd.print(String(counter) + String("      "));
  if ((long) (i) % (long) (2) == 0) {
    mylcd.setCursor(2-1, 1-1);
    mylcd.print(">");

  } else {
    mylcd.setCursor(2-1, 1-1);
    mylcd.print(" ");

  }
  button4.tick();
  button4.tick();
  button4.tick();
}