#include <Arduino.h>
#define LEDARRAY_D 2
#define LEDARRAY_C 3
#define LEDARRAY_B 4
#define LEDARRAY_A 5
#define LEDARRAY_G 6
#define LEDARRAY_DI 7
#define LEDARRAY_CLK 8
#define LEDARRAY_LAT 9


unsigned char Display_Buffer[2];
const unsigned char  Word1[1][32] = 
{
0xFF,0xFF,0xFF,0xE1,0xC0,0x80,0x80,0x80,0xC0,0xE0,0xF0,0xF8,0xFC,0xFE,0xFF,0xFF,
0xFF,0xFF,0xFF,0x87,0x03,0x01,0x01,0x01,0x03,0x07,0x0F,0x1F,0x3F,0x7F,0xFF,0xFF,/*"C:\Users\Lin\Desktop\心.BMP",0*/

};
const unsigned char  Word2[1][32] = 
{
0xFF,0xF8,0xF0,0xE0,0xC0,0x87,0x86,0x84,0x85,0x86,0x87,0xC0,0xE0,0xF0,0xF8,0xFF,
0xFF,0x1F,0x0F,0x07,0x03,0xE1,0x61,0xA1,0x21,0x61,0xE1,0x03,0x07,0x0F,0x1F,0xFF,/*"Unnamed file",0*/
};

void setup()
{
  pinMode(LEDARRAY_D, OUTPUT); 
  pinMode(LEDARRAY_C, OUTPUT);
  pinMode(LEDARRAY_B, OUTPUT);
  pinMode(LEDARRAY_A, OUTPUT);
  pinMode(LEDARRAY_G, OUTPUT);
  pinMode(LEDARRAY_DI, OUTPUT);
  pinMode(LEDARRAY_CLK, OUTPUT);
  pinMode(LEDARRAY_LAT, OUTPUT);
}

void loop()
{
  int a=300, i=300;
  while(i)
  {
  Display(Word1);
  i--;
  }
  delay(100);
    while(a)
  {
  Display(Word2);
  a--;
  }
  delay(100);
}



//************************************************************
//num means the number of word  dat[][32] is the name of font
//*************************************************************
void Display(const unsigned char dat[][32])         
{
  unsigned char i;

  for( i = 0 ; i < 16 ; i++ )
  {
    digitalWrite(LEDARRAY_G, HIGH);   //When updating the data,please close the display. After updating the data, open the 138 display line. Avoiding ghosting.

    Display_Buffer[0] = dat[0][i];    
    Display_Buffer[1] = dat[0][i+16];

    Send(Display_Buffer[1]);
    Send(Display_Buffer[0]);

    digitalWrite(LEDARRAY_LAT, HIGH);         //storage data  
    delayMicroseconds(1);

    digitalWrite(LEDARRAY_LAT, LOW);
    delayMicroseconds(1);

    Scan_Line(i);             //Choose the line i

    digitalWrite(LEDARRAY_G, LOW);

    delayMicroseconds(100);;      // Delay for a period of time to let the LED light up.          
  } 
}

//****************************************************
//Scanning line
//****************************************************
void Scan_Line( unsigned char m)
{ 
  switch(m)
  {
    case 0:     
      digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, LOW);          
      break;
    case 1:         
      digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, HIGH);     
      break;
    case 2:         
      digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, LOW);     
      break;
    case 3:         
      digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, HIGH);    
      break;
    case 4:
      digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, LOW);     
      break;
    case 5:
      digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, HIGH);    
      break;
    case 6:
      digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, LOW);    
      break;
    case 7:
      digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, HIGH);     
      break;
    case 8:
      digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, LOW);     
      break;
    case 9:
      digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, HIGH);    
      break;  
    case 10:
      digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, LOW);    
      break;
    case 11:
      digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, HIGH);     
      break;
    case 12:
      digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, LOW);    
      break;
    case 13:
      digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, HIGH);     
      break;
    case 14:
      digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, LOW);     
      break;
    case 15:
      digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, HIGH);    
      break;
    default : break;  
  }
}

//****************************************************
//Send the data      
//****************************************************
void Send( unsigned char dat)
{
  unsigned char i;
  digitalWrite(LEDARRAY_CLK, LOW);
  delayMicroseconds(1);;  
  digitalWrite(LEDARRAY_LAT, LOW);
  delayMicroseconds(1);;

  for( i = 0 ; i < 8 ; i++ )
  {
    if( dat&0x01 )
    {
      digitalWrite(LEDARRAY_DI, HIGH);  
    }
    else
    {
      digitalWrite(LEDARRAY_DI, LOW);
    }

    delayMicroseconds(1);
    digitalWrite(LEDARRAY_CLK, HIGH);       // Rising edge sends the data 
      delayMicroseconds(1);
    digitalWrite(LEDARRAY_CLK, LOW);
      delayMicroseconds(1);   
    dat >>= 1;

  }     
}