16x16 Dot LED Matrix Display Arduino Hello World

hello.ino

/**
 *     
 	This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <Arduino.h>

//IO    
#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];

unsigned int Word1[32];

//here you'll draw the scene in your screen
unsigned char  Scene[16][16] = 
{
	{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
	{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
	{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1},
	{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1},
	{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1},
	{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1},
	{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1},
	{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1},
	{1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1},
	{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1},
	{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1},
	{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1},
	{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1},
	{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1},
	{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
	{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
};

void SceneToWord(){
	int i, k, key = 0;
	unsigned int value;
	for(i = 0; i < 16; i++){
		for(k = 0; k < 16; k++){
			if(i < 8){
				value = Scene[i][k] << (7 - i);
				Word1[15 - k] += value;
			} else {
				value = Scene[i][k] << (15 - i);
				Word1[31 - k] += value;
			}
		}
	}
}

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);
	Serial.begin(9600);
}

//************************************************************

//*************************************************************
void Display(unsigned int dat[])	{
	unsigned char i;

	for( i = 0 ; i < 16 ; i++ )
	{
		digitalWrite(LEDARRAY_G, HIGH);		
		
		Display_Buffer[0] = dat[i];		
		Display_Buffer[1] = dat[i+16];

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

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

		Scan_Line(i);							

		digitalWrite(LEDARRAY_G, LOW);
		
		delayMicroseconds(100);		
	}	
}


//****************************************************

//****************************************************
void Scan_Line( unsigned int 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;	
	}
}

//****************************************************
      
//****************************************************
void Send( unsigned int 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);				  
			delayMicroseconds(1);
		digitalWrite(LEDARRAY_CLK, LOW);
			delayMicroseconds(1);		
		dat >>= 1;
			
	}			
}



void loop() {
	update();
	Display(Word1);
}

void update(){
	clearWord();
	SceneToWord();
}

void clearWord(){
	for(int i = 0; i < 32; i++)
		Word1[i] = 0;
}

My need schematic circuit diagram