#include <Keypad.h>
#include <LedControl.h>

int DIN_PIN = 2;
int CLK_PIN = 3;
int CS_PIN = 4;
const byte ROWS = 4; // Number of rows
const byte COLS = 4; // Number of columns
char keys[ROWS][COLS] = {
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};
byte rowPins[ROWS] = {5, 6, 7, 8}; // Connect to row pins
byte colPins[COLS] = {9, 10, 11, 12}; // Connect to column pins

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

int inputValue = 0;


LedControl lc = LedControl(DIN_PIN, CLK_PIN, CS_PIN, 1); // 1 for single module


byte nine[] = {
  B11111111,
  B10000001,
  B10000001,
  B10000001,
  B11111111,
  B00000001,
  B00000001,
  B11111111
};
byte eight[] = {
  B11111111,
  B10000001,
  B10000001,
  B11111111,
  B11111111,
  B10000001,
  B10000001,
  B11111111
};
byte seven[] = {
  B11111111,
  B00000001,
  B00000001,
  B00000001,
  B00000001,
  B00000001,
  B00000001,
  B00000001
};
byte six[] = {
  B11111111,
  B10000000,
  B10000000,
  B10000000,
  B11111111,
  B10000001,
  B10000001,
  B11111111
};
byte five[] = {
  B11111111,
  B10000000,
  B10000000,
  B10000000,
  B11111111,
  B00000001,
  B00000001,
  B11111111
};
byte four[] = {
  B10000001 ,
  B10000001,
  B10000001,
  B10000001,
  B11111111,
  B00000001,
  B00000001,
  B00000001
};
byte three[] = {
  B11111111,
  B00000001,
  B00000001,
  B00000001,
  B11111111,
  B00000001,
  B00000001,
  B11111111
};
byte two[] = {
  B11111111,
  B00000001,
  B00000001,
  B00000001,
  B11111111,
  B10000000,
  B10000000,
  B11111111
};
byte one[] = {
  B00000001,
  B00000001,
  B00000001,
  B00000001,
  B00000001,
  B00000001,
  B00000001,
  B00000001
};
byte zero[] = {
  B11111111,
  B10000001,
  B10000001,
  B10000001,
  B10000001,
  B10000001,
  B10000001,
  B11111111
};

byte za[] = {
  B00000000,
  B00110000,
  B01001000,
  B01111000,
  B01001000,
  B01001000,
  B00000000,
  B00000000
};

byte zb[] = {
  B00000000,
  B01000000,
  B01000000,
  B01111000,
  B01001000,
  B01001000,
  B01111000,
  B00000000
};

byte zc[] = {
  B00000000,
  B01111000,
  B01000000,
  B01000000,
  B01000000,
  B01000000,
  B01000000,
  B01111000
};

byte zd[] = {
  B00000000,
  B01110000,
  B01001000,
  B01000100,
  B01000100,
  B01001000,
  B01110000,
  B00000000
};

byte ze[] = {
  10010010,
  01010100,
  00111000,
  11111110,
  00111000,
  01010100,
  10010010,
  00000000
};

byte zf[] = {
  B0000000,
  B0100100,
  B1111110,
  B0100100,
  B0100100,
  B1111110,
  B0100100,
  B0000000
};

void setup() {

  lc.shutdown(0, false);  
  lc.setIntensity(0, 8);  
  lc.clearDisplay(0);     
}

void c9()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, nine[i]);
  }
  delay(1000);
}

void c8()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, eight[i]);
    }
    delay(1000);
}

void c7()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, seven[i]);
  }
  delay(1000);
}

void c6()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, six[i]);
  }
}

void c5()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, five[i]);
  }
}

void c4()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, four[i]);
  }
}

void c3()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, three[i]);
  }
}

void c2()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, two[i]);
  }
}

void c1()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, one[i]);
  }
}

void c0()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, zero[i]);
  }
}

void ca()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, za[i]);
  }
}
void cb()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, zb[i]);
  }
}
void cd()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, zd[i]);
  }
}
void ce()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, ze[i]);
  }
}
void cf()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, zf[i]);
  }
}
void cc()
{
  for (int i = 0; i < 8; i++) {
    lc.setRow(0, i, zc[i]);
  }
}

void loop() {
  char key = keypad.getKey();

  switch (key) {
    case '1':
    c1();
    break;
    
    case '2':
    c2();
    break;

    case '3':
    c3();
    break;
  
    case '4':
    c4();
    break;
    
    case '5':
    c5();
    break;
    
    case '6':
    c6();
    break;
    
    case '7':
    c7();
    break;
    
    case '8':
    c8();
    break;
    
    case '9':
    c9();
    break;
    
    case '0':
    c0();
    break;
    
    case 'A':
    ca();
    break;
    
    case 'B':
    cb();
    break;
    
    case 'C':
    cc();
    break;
    
    case 'D':
    cd();
    break;
    
    case '*':
    ce();
    break;
    
    case '#':
    cf();
    break;
  }
  delay(100);
  }