Guys, In this project, we are going to learn about LED Matrix Display and going to make a simple interface between Arduino and 8X8 LED Matrix to display information. Okey, let's see how it works.
Components Required
| 1. | Arduino UNO | * 1 |
| 2. | LED 8*8 Dot Matrix | * 1 |
| 3. | Bread Board | * 1 |
| 4. | Jumper Wires | * 1 |
Circuit Diagram
Program
#include <LedControl.h>
int DIN = 12;
int CS = 11;
int CLK = 10;
byte a[8]= {0x00,0xE9,0x89,0xE9,0x29,0xEF,0x00,0x00,};
byte b[8]= {0x00,0xE7,0x94,0xE7,0x91,0xE7,0x00,0x00,};
byte c[8]= {0x00,0xEC,0x8A,0x8C,0x8A,0xEA,0x00,0x00,};
byte d[8]= {0x00,0xEE,0x49,0x4E,0x49,0xEE,0x00,0x00,};
byte e[8]= {0x00,0xF0,0x80,0xF0,0x80,0xF0,0x00,0x00,};
LedControl lc=LedControl(DIN,CLK,CS,0);
void setup(){
lc.shutdown(0,false); //The MAX72XX is in power-saving mode on startup
lc.setIntensity(0,15); // Set the brightness to maximum value
lc.clearDisplay(0); // and clear the display
}
void loop(){
byte f[8]= {0x00,0x66,0xFF,0xFF,0x7E,0x3C,0x18,0x00,};
byte g[8]= {0xFF,0x99,0x00,0x00,0x81,0xC3,0xE7,0xFF,};
byte h[8]= {0x00,0x66,0xFF,0xFF,0x7E,0x3C,0x18,0x00,};
byte i[8] = {0xFF,0x99,0x00,0x00,0x81,0xC3,0xE7,0xFF,};
printByte(f);
delay(1000);
printByte(g);
delay(1000);
printByte(h);
delay(1000);
printByte(i);
delay(1000);
printEduc8s();
lc.clearDisplay(0);
delay(1000);
}
void printEduc8s()
{
printByte(a);
delay(1000);
printByte(b);
delay(1000);
printByte(c);
delay(1000);
printByte(d);
delay(1000);
printByte(e);
delay(1000);
}
void printByte(byte character [])
{
int i = 0;
for(i=0;i<8;i++)
{
lc.setRow(0,i,character[i]);
}
}