//We always have to include the library for control LED
#include "LedControl.h"

/*
 Now we need a LedControl to work with.
 ***** These pin numbers will probably not work with your hardware *****
 pin 4 is connected to the DataIn 
 pin 5 is connected to the CLK 
 pin 10 is connected to LOAD 
 We have only a single MAX72XX.
 */
// LedControl lc=LedControl(12,11,10,1);
#define CLK_11       5 // Connect CLK to Arduino port 5
#define DATA_IN_12   4 // Connect DIN/DATA IN to Arduino Port 4
#define LOAD_10      10 // Connect CS to Arduino Port 10
/* Declare variable for Led Control */
LedControl lc=LedControl(DATA_IN_12,CLK_11,LOAD_10,1);

/* we always wait a bit between updates of the display */
unsigned long delaytime=3000;

void setup() {
  /*
   The MAX72XX is in power-saving mode on startup,
   we have to do a wakeup call
   */
  lc.shutdown(0,false);
  /* Set the brightness to a medium values */
  lc.setIntensity(0,8);
  /* and clear the display */
  lc.clearDisplay(0);
}

void loop() { 
  /* Variable declaration */
  /* new_0 is array to contain Truth table frpom 0 to 9 */ 
  byte new_0[][5]=
  {
    {B00000111,B00000101,B00000101,B00000101,B00000111}, //0
    {B00000001,B00000001,B00000001,B00000001,B00000001}, //1
    {B00000111,B00000100,B00000111,B00000001,B00000111}, //2
    {B00000111,B00000100,B00000111,B00000100,B00000111}, //3
    {B00000101,B00000101,B00000111,B00000100,B00000100}, //4
    {B00000111,B00000001,B00000111,B00000100,B00000111}, //5
    {B00000111,B00000001,B00000111,B00000101,B00000111}, //6
    {B00001111,B00001000,B00001000,B00001000,B00001000}, //7
    {B00001111,B00001001,B00001111,B00001001,B00001111}, //8
    {B00001111,B00001001,B00001111,B00001000,B00001111} //9
  };
  // Loop 10 times to display 0-9 to 8x8 dot matrix
  for(int i=0;i<10;i++) {
    // iterate for digit from i=0 (digit '0') to 9 ( digit '9')
    for(int j=0;j<5;j++) {
      // Display each dot in a row,from Row 0 to 4
      lc.setRow(0,j,new_0[i][j]);
    }
    // Wait 3 seconds
    delay(delaytime);
  }

  // Display 1o digits from 0 to 9 randomizely
  for(int i=0;i<10;i++) {
    // iterate 10 times
    // Generate a random integer from 0 to 9
    int k=random(0,9);
    for(int j=0;j<5;j++) {
      // Display the random number
      lc.setRow(0,j,new_0[k][j]);
    }
    // Wait 3 seconds
    delay(delaytime);
  }
}