Arduino Cat Box Timer (Hero Multi Function Shield)

//Cat Box Timer

#include <TimerOne.h>
#include <Wire.h>
#include <MultiFuncShield.h>
#include <TM1637Display.h>

#define LED_1 13

enum countUpModeValues
{
  COUNTING_STOPPED,
  COUNTING,
  HELLOKITTY
};

byte countUpMode = HELLOKITTY;

unsigned int seconds = 0;
unsigned int hours = 0;
unsigned int days = 0;

static char strBuffer[4] = {0};



void setup() {
  // put your setup code here, to run once:
  Timer1.initialize();
  MFS.initialize(&Timer1); // initialize multifunction shield library

  pinMode(LED_1, OUTPUT);

  digitalWrite(LED_1, LOW);

  //Clears the display
  MFS.write("    ");

}


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

  byte btn = MFS.getButton();

  switch (countUpMode)
  {
    case COUNTING_STOPPED:
      if (btn == BUTTON_1_SHORT_RELEASE)
      {
        // start the timer
        countUpMode = COUNTING;
      }
      else if (btn == BUTTON_1_LONG_PRESSED)
      {
        // reset the timer
        seconds = 0;
        hours = 0;
        days = 0;
        countUpMode = HELLOKITTY;
      }
      else if (btn == BUTTON_2_PRESSED || btn == BUTTON_2_LONG_PRESSED)
      {
        days++;
        //Stop days from going into the double digets it can't display
        if (days == 10) {
          days = 0;
        }
        MFS.write(buildStringForMFS(days, hours));

      }
      else if (btn == BUTTON_3_PRESSED || btn == BUTTON_3_LONG_PRESSED)
      {
        hours ++;
        if (hours >= 23)
        {
          hours = 0;
          days++;
          if (days == 10) {
            days = 0;
          }
        }
        MFS.write(buildStringForMFS(days, hours));
      }
      break;




    case COUNTING:
      if (btn == BUTTON_1_SHORT_RELEASE || btn == BUTTON_1_LONG_RELEASE)
      {
        // stop the timer
        countUpMode = COUNTING_STOPPED;
      }
      else
      {
        // continue counting up
        seconds++;

        if (seconds == 3600) //1 hour 3600
        {
          seconds = 0;
          hours++;

        }
        if (hours == 24) { //1 Day
          hours = 0;
          days++;
        }
        // Display not ment to show over 10 days so it must reset
        if (days == 10) {
          days = 0;
        }
        if (days > 4 && seconds == 0) {
          MFS.beep(20, 5, 2); // (beep x times, xx milliseconds on / xx off)
        }

        MFS.write(buildStringForMFS(days, hours));


        //Blink the light to signal timer is running
        if (digitalRead(LED_1) == LOW) {
          digitalWrite(LED_1, HIGH);
        }
        else {
          digitalWrite(LED_1, LOW);
        }

        delay(1000); //Delay one second
        //delay(10); // Speed up for testing
      }

      break;

    //Used for boot up and testing all lights
    case HELLOKITTY:
      countUpMode = COUNTING_STOPPED;

      for (int i = 0; i <= 2; i++) {
        MFS.write(" 00 ");
        delay(1000);
        MFS.write(" -- ");
        delay(100);
      }
      MFS.write(" 00 ");
      delay(2000);
      MFS.write("cAt");

      break;
  }
}


char *buildStringForMFS(int days, int hours) {

  if (hours > 9) {
    sprintf(strBuffer, "%d %d", days, hours);
  } else {
    sprintf(strBuffer, "%d  %d", days, hours);
  }
  return strBuffer;
}