#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4); // Set the LCD address to 0x27 by Teach Me Something
int s, m, h, a, d, state, state1, state2, dg, cnt;
int xx = 0;
int yy = 0;
byte arrow[8] = {B00000, B00000, B00000, B00000, B11100, B01111, B11100, B00000,};
// the 8 arrays that form each segment of the custom numbers
byte bar1[8] =
{
  B11100,
  B11110,
  B11110,
  B11110,
  B11110,
  B11110,
  B11110,
  B11100
};
byte bar2[8] =
{
  B00111,
  B01111,
  B01111,
  B01111,
  B01111,
  B01111,
  B01111,
  B00111
};
byte bar3[8] =
{
  B11111,
  B11111,
  B00000,
  B00000,
  B00000,
  B00000,
  B11111,
  B11111
};
byte bar4[8] =
{
  B11110,
  B11100,
  B00000,
  B00000,
  B00000,
  B00000,
  B11000,
  B11100
};
byte bar5[8] =
{
  B01111,
  B00111,
  B00000,
  B00000,
  B00000,
  B00000,
  B00011,
  B00111
};
byte bar6[8] =
{
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B11111,
  B11111
};
byte bar7[8] =
{
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B00111,
  B01111
};
byte bar8[8] =
{
  B11111,
  B11111,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000
};

void custom0(int col)
{
  lcd.setCursor(col, 0);
  lcd.write(2);
  lcd.write(8);
  lcd.write(1);
  lcd.setCursor(col, 1);
  lcd.write(2);
  lcd.write(6);
  lcd.write(1);
}

void custom1(int col)
{
  lcd.setCursor(col, 0);
  lcd.write(32);
  lcd.write(32);
  lcd.write(1);
  lcd.setCursor(col, 1);
  lcd.write(32);
  lcd.write(32);
  lcd.write(1);
}

void custom2(int col)
{
  lcd.setCursor(col, 0);
  lcd.write(5);
  lcd.write(3);
  lcd.write(1);
  lcd.setCursor(col, 1);
  lcd.write(2);
  lcd.write(6);
  lcd.write(6);
}

void custom3(int col)
{
  lcd.setCursor(col, 0);
  lcd.write(5);
  lcd.write(3);
  lcd.write(1);
  lcd.setCursor(col, 1);
  lcd.write(7);
  lcd.write(6);
  lcd.write(1);
}

void custom4(int col)
{
  lcd.setCursor(col, 0);
  lcd.write(2);
  lcd.write(6);
  lcd.write(1);
  lcd.setCursor(col, 1);
  lcd.write(32);
  lcd.write(32);
  lcd.write(1);
}

void custom5(int col)
{
  lcd.setCursor(col, 0);
  lcd.write(2);
  lcd.write(3);
  lcd.write(4);
  lcd.setCursor(col, 1);
  lcd.write(7);
  lcd.write(6);
  lcd.write(1);
}

void custom6(int col)
{
  lcd.setCursor(col, 0);
  lcd.write(2);
  lcd.write(3);
  lcd.write(4);
  lcd.setCursor(col, 1);
  lcd.write(2);
  lcd.write(6);
  lcd.write(1);
}

void custom7(int col)
{
  lcd.setCursor(col, 0);
  lcd.write(2);
  lcd.write(8);
  lcd.write(1);
  lcd.setCursor(col, 1);
  lcd.write(32);
  lcd.write(32);
  lcd.write(1);
}

void custom8(int col)
{
  lcd.setCursor(col, 0);
  lcd.write(2);
  lcd.write(3);
  lcd.write(1);
  lcd.setCursor(col, 1);
  lcd.write(2);
  lcd.write(6);
  lcd.write(1);
}

void custom9(int col)
{
  lcd.setCursor(col, 0);
  lcd.write(2);
  lcd.write(3);
  lcd.write(1);
  lcd.setCursor(col, 1);
  lcd.write(7);
  lcd.write(6);
  lcd.write(1);
}

void printNumber(int value, int col)
{
  if (value == 0) {
    custom0(col);
  } if (value == 1) {
    custom1(col);
  } if (value == 2) {
    custom2(col);
  } if (value == 3) {
    custom3(col);
  } if (value == 4) {
    custom4(col);
  } if (value == 5) {
    custom5(col);
  } if (value == 6) {
    custom6(col);
  } if (value == 7) {
    custom7(col);
  } if (value == 8) {
    custom8(col);
  } if (value == 9) {
    custom9(col);
  }
}
void setup()
{
  lcd.init();
  lcd.backlight();
  lcd.createChar(1, arrow);
  for (yy = 0; yy < 2; yy++)
  {
    for (xx = 0; xx < 16; xx++)
    {
      lcd.setCursor(xx, yy);
      lcd.print(char(1));
      delay(130);
      lcd.setCursor(xx, yy);
      if (yy == 0)
        lcd.print("   Subscribe     "[xx]);
      else
        lcd.print("TeachMeSomething"[xx]);
    }
  }
  delay(2000);
  lcd.clear();
  lcd.createChar(1, bar1);
  lcd.createChar(2, bar2);
  lcd.createChar(3, bar3);
  lcd.createChar(4, bar4);
  lcd.createChar(5, bar5);
  lcd.createChar(6, bar6);
  lcd.createChar(7, bar7);
  lcd.createChar(8, bar8);
}
void loop()
{
  show_number(99999);
  lcd.setCursor(18, 1);
  lcd.print("CC");
  lcd.setCursor(0, 3);
  a = 10;
  lcd.print("Size S :" + String(a));
  delay(1000);
}

void show_number(long int a) {
  // หลักหมื่น
  int tenThousands = a / 10000;

  // หลักพัน
  int thousands = (a % 10000) / 1000;

  // หลักร้อย
  int hundreds = (a % 1000) / 100;

  // หลักสิบ
  int tens = (a % 100) / 10;

  // หลักหน่วย
  int units = a % 10;

  if (tenThousands != 0) {
    printNumber(tenThousands, 0);
  } else {
    // If tenThousands is 0, don't display anything for this digit
    lcd.setCursor(0, 0);
    lcd.write(' ');
    lcd.write(' ');
    lcd.write(' ');
  }

  if (thousands != 0 || tenThousands != 0) {
    printNumber(thousands, 3);
  } else {
    // If thousands is 0 and tenThousands is 0, don't display anything for this digit
    lcd.setCursor(3, 0);
    lcd.write(' ');
    lcd.write(' ');
    lcd.write(' ');
  }

  if (hundreds != 0 || thousands != 0 || tenThousands != 0) {
    printNumber(hundreds, 7);
  } else {
    // If hundreds is 0 and thousands is 0 and tenThousands is 0, don't display anything for this digit
    lcd.setCursor(7, 0);
    lcd.write(' ');
    lcd.write(' ');
    lcd.write(' ');
  }

  if (tens != 0 || hundreds != 0 || thousands != 0 || tenThousands != 0) {
    printNumber(tens, 11);
  } else {
    // If hundreds is 0 and thousands is 0 and tenThousands is 0, don't display anything for this digit
    lcd.setCursor(11, 0);
    lcd.write(' ');
    lcd.write(' ');
    lcd.write(' ');
  }

  printNumber(units, 15);
}