start:arduino:max7219

Table des matières

Tutoriels MAX7219 avec matrice 8X8

Tutoriels MAX7219 avec matrice 8X8

Liens web tuto MAX7219

Montage Kit MAX7219 EN

Montage Kstart:arduino:max7219:FRit MAX7219 FR

Concevez des matrices de LED

Tuto MAX7219 Arduino

Matrice 8X8

Tutoriel Arduino – MAX7219 Afficheur 8X8 LED

MAX 7219

LED Matrix Kit

64 LEDS et MAX7219

MAX7219 avec 4 matrices de LEDS 8X8 en cascade
- Matrice LEDS 5 fois 8x8

LEDS 8X8 par internet

Une Video

Programmes

Préparation Logiciels

Utiliser ou télécharger la dernière version de l'IDE Arduino

Le diagramme de synchronisation pour Max7219 et son format de données série sont joints ci-dessous avec ses caractéristiques électroniques.

Un programme de test sans librairie à inclure

exemple_code_MAX7219.ino

 unsigned char i;
 unsigned char j; 
/*Port Definitions*/
int Max7219_pinCLK = 10;
int Max7219_pinCS = 9;
int Max7219_pinDIN = 8;
 
unsigned char disp1[38][8]={
{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//0
{0x10,0x18,0x14,0x10,0x10,0x10,0x10,0x10},//1
{0x7E,0x2,0x2,0x7E,0x40,0x40,0x40,0x7E},//2
{0x3E,0x2,0x2,0x3E,0x2,0x2,0x3E,0x0},//3
{0x8,0x18,0x28,0x48,0xFE,0x8,0x8,0x8},//4
{0x3C,0x20,0x20,0x3C,0x4,0x4,0x3C,0x0},//5
{0x3C,0x20,0x20,0x3C,0x24,0x24,0x3C,0x0},//6
{0x3E,0x22,0x4,0x8,0x8,0x8,0x8,0x8},//7
{0x0,0x3E,0x22,0x22,0x3E,0x22,0x22,0x3E},//8
{0x3E,0x22,0x22,0x3E,0x2,0x2,0x2,0x3E},//9
{0x8,0x14,0x22,0x3E,0x22,0x22,0x22,0x22},//A
{0x3C,0x22,0x22,0x3E,0x22,0x22,0x3C,0x0},//B
{0x3C,0x40,0x40,0x40,0x40,0x40,0x3C,0x0},//C
{0x7C,0x42,0x42,0x42,0x42,0x42,0x7C,0x0},//D
{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x7C},//E
{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x40},//F
{0x3C,0x40,0x40,0x40,0x40,0x44,0x44,0x3C},//G
{0x44,0x44,0x44,0x7C,0x44,0x44,0x44,0x44},//H
{0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x7C},//I
{0x3C,0x8,0x8,0x8,0x8,0x8,0x48,0x30},//J
{0x0,0x24,0x28,0x30,0x20,0x30,0x28,0x24},//K
{0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x7C},//L
{0x81,0xC3,0xA5,0x99,0x81,0x81,0x81,0x81},//M
{0x0,0x42,0x62,0x52,0x4A,0x46,0x42,0x0},//N
{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//O
{0x3C,0x22,0x22,0x22,0x3C,0x20,0x20,0x20},//P
{0x1C,0x22,0x22,0x22,0x22,0x26,0x22,0x1D},//Q
{0x3C,0x22,0x22,0x22,0x3C,0x24,0x22,0x21},//R
{0x0,0x1E,0x20,0x20,0x3E,0x2,0x2,0x3C},//S
{0x0,0x3E,0x8,0x8,0x8,0x8,0x8,0x8},//T
{0x42,0x42,0x42,0x42,0x42,0x42,0x22,0x1C},//U
{0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18},//V
{0x0,0x49,0x49,0x49,0x49,0x2A,0x1C,0x0},//W
{0x0,0x41,0x22,0x14,0x8,0x14,0x22,0x41},//X
{0x41,0x22,0x14,0x8,0x8,0x8,0x8,0x8},//Y
{0x0,0x7F,0x2,0x4,0x8,0x10,0x20,0x7F},//Z
};
 
 
 
void Write_Max7219_byte(unsigned char DATA) 
{   
            unsigned char i;
	    digitalWrite(Max7219_pinCS,LOW);		
	    for(i=8;i>=1;i--)
          {		  
             digitalWrite(Max7219_pinCLK,LOW);
             digitalWrite(Max7219_pinDIN,DATA&0x80);// Extracting a bit data
             DATA = DATA<<1;
             digitalWrite(Max7219_pinCLK,HIGH);
           }                                 
}
 
 
void Write_Max7219(unsigned char address,unsigned char dat)
{
        digitalWrite(Max7219_pinCS,LOW);
        Write_Max7219_byte(address);           //address，code of LED
        Write_Max7219_byte(dat);               //data，figure on LED 
        digitalWrite(Max7219_pinCS,HIGH);
}
 
void Init_MAX7219(void)
{
 Write_Max7219(0x09, 0x00);       //decoding ：BCD
 Write_Max7219(0x0a, 0x03);       //brightness 
 Write_Max7219(0x0b, 0x07);       //scanlimit；8 LEDs
 Write_Max7219(0x0c, 0x01);       //power-down mode：0，normal mode：1
 Write_Max7219(0x0f, 0x00);       //test display：1；EOT，display：0
}
 
 
 
void setup()
{
 
  pinMode(Max7219_pinCLK,OUTPUT);
  pinMode(Max7219_pinCS,OUTPUT);
  pinMode(Max7219_pinDIN,OUTPUT);
  delay(50);
  Init_MAX7219();
}
 
 
void loop()
{ 
   for(j=0;j<38;j++)
  {
   for(i=1;i<9;i++)
    Write_Max7219(i,disp1[j][i-1]);
   delay(500);
  } 		
}