git.rot13.org Git - Arduino/blob - MAX7129_8x8_LED/MAX7129_8x8_LED.ino

   1 unsigned char i;
   2  unsigned char j;
   3 /*Port Definitions*/
   4 int Max7219_pinCLK = 10;
   5 int Max7219_pinCS = 9;
   6 int Max7219_pinDIN = 8;
   7
   8 unsigned char disp1[38][8]={
   9 {0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//0
  10 {0x10,0x18,0x14,0x10,0x10,0x10,0x10,0x10},//1
  11 {0x7E,0x2,0x2,0x7E,0x40,0x40,0x40,0x7E},//2
  12 {0x3E,0x2,0x2,0x3E,0x2,0x2,0x3E,0x0},//3
  13 {0x8,0x18,0x28,0x48,0xFE,0x8,0x8,0x8},//4
  14 {0x3C,0x20,0x20,0x3C,0x4,0x4,0x3C,0x0},//5
  15 {0x3C,0x20,0x20,0x3C,0x24,0x24,0x3C,0x0},//6
  16 {0x3E,0x22,0x4,0x8,0x8,0x8,0x8,0x8},//7
  17 {0x0,0x3E,0x22,0x22,0x3E,0x22,0x22,0x3E},//8
  18 {0x3E,0x22,0x22,0x3E,0x2,0x2,0x2,0x3E},//9
  19 {0x8,0x14,0x22,0x3E,0x22,0x22,0x22,0x22},//A
  20 {0x3C,0x22,0x22,0x3E,0x22,0x22,0x3C,0x0},//B
  21 {0x3C,0x40,0x40,0x40,0x40,0x40,0x3C,0x0},//C
  22 {0x7C,0x42,0x42,0x42,0x42,0x42,0x7C,0x0},//D
  23 {0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x7C},//E
  24 {0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x40},//F
  25 {0x3C,0x40,0x40,0x40,0x40,0x44,0x44,0x3C},//G
  26 {0x44,0x44,0x44,0x7C,0x44,0x44,0x44,0x44},//H
  27 {0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x7C},//I
  28 {0x3C,0x8,0x8,0x8,0x8,0x8,0x48,0x30},//J
  29 {0x0,0x24,0x28,0x30,0x20,0x30,0x28,0x24},//K
  30 {0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x7C},//L
  31 {0x81,0xC3,0xA5,0x99,0x81,0x81,0x81,0x81},//M
  32 {0x0,0x42,0x62,0x52,0x4A,0x46,0x42,0x0},//N
  33 {0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//O
  34 {0x3C,0x22,0x22,0x22,0x3C,0x20,0x20,0x20},//P
  35 {0x1C,0x22,0x22,0x22,0x22,0x26,0x22,0x1D},//Q
  36 {0x3C,0x22,0x22,0x22,0x3C,0x24,0x22,0x21},//R
  37 {0x0,0x1E,0x20,0x20,0x3E,0x2,0x2,0x3C},//S
  38 {0x0,0x3E,0x8,0x8,0x8,0x8,0x8,0x8},//T
  39 {0x42,0x42,0x42,0x42,0x42,0x42,0x22,0x1C},//U
  40 {0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18},//V
  41 {0x0,0x49,0x49,0x49,0x49,0x2A,0x1C,0x0},//W
  42 {0x0,0x41,0x22,0x14,0x8,0x14,0x22,0x41},//X
  43 {0x41,0x22,0x14,0x8,0x8,0x8,0x8,0x8},//Y
  44 {0x0,0x7F,0x2,0x4,0x8,0x10,0x20,0x7F},//Z
  45 };
  46
  47
  48
  49 void Write_Max7219_byte(unsigned char DATA)
  50 {
  51             unsigned char i;
  52             digitalWrite(Max7219_pinCS,LOW);
  53             for(i=8;i>=1;i--)
  54           {
  55              digitalWrite(Max7219_pinCLK,LOW);
  56              digitalWrite(Max7219_pinDIN,DATA&0x80);// Extracting a bit data
  57              DATA = DATA<<1;
  58              digitalWrite(Max7219_pinCLK,HIGH);
  59            }
  60 }
  61
  62
  63 void Write_Max7219(unsigned char address,unsigned char dat)
  64 {
  65         digitalWrite(Max7219_pinCS,LOW);
  66         Write_Max7219_byte(address);           //address，code of LED
  67         Write_Max7219_byte(dat);               //data，figure on LED
  68         digitalWrite(Max7219_pinCS,HIGH);
  69 }
  70
  71 void Init_MAX7219(void)
  72 {
  73  Write_Max7219(0x09, 0x00);       //decoding ：BCD
  74  Write_Max7219(0x0a, 0x03);       //brightness
  75  Write_Max7219(0x0b, 0x07);       //scanlimit；8 LEDs
  76  Write_Max7219(0x0c, 0x01);       //power-down mode：0，normal mode：1
  77  Write_Max7219(0x0f, 0x00);       //test display：1；EOT，display：0
  78 }
  79
  80
  81
  82 void setup()
  83 {
  84
  85   pinMode(Max7219_pinCLK,OUTPUT);
  86   pinMode(Max7219_pinCS,OUTPUT);
  87   pinMode(Max7219_pinDIN,OUTPUT);
  88   delay(50);
  89   Init_MAX7219();
  90 }
  91
  92
  93 void loop()
  94 {
  95    for(j=0;j<38;j++)
  96   {
  97    for(i=1;i<9;i++)
  98     Write_Max7219(i,disp1[j][i-1]);
  99    delay(500);
 100   }
 101 }