Embedded Files
需要的lib
http://goo.gl/6tz8HW
VCC要接5V
#include "LedControl.h" // need the library
LedControl lc=LedControl(8,10,9,1); //
// pin 8 is connected to the MAX7219 pin 1_DIN
// pin 11 is connected to the CLK pin 13_CLK
// pin 10 is connected to LOAD pin 12_CS
// 1 as we are only using 1 MAX7219
void setup(){
// the zero refers to the MAX7219 number, it is zero for 1 chip
lc.shutdown(0,false);// turn off power saving, enables display
lc.setIntensity(0,8);// sets brightness (0~15 possible values)
lc.clearDisplay(0);// clear screen
}
void loop(){
for (int row=0; row<8; row++){
for (int col=0; col<8; col++){
lc.setLed(0,col,row,true); // turns on LED at col, row
delay(25);
}
}
for (int row=0; row<8; row++){
for (int col=0; col<8; col++){
lc.setLed(0,col,row,false); // turns off LED at col, row
delay(25);
}
}
}
unsigned char i;
unsigned char j;
/*port definition*/
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
{0x8,0x7F,0x49,0x49,0x7F,0x8,0x8,0x8},//Chinese character
{0xFE,0xBA,0x92,0xBA,0x92,0x9A,0xBA,0xFE},//Chinese character
};
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);//Obtain the MSB of the 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); //
Write_Max7219_byte(dat); //
digitalWrite(Max7219_pinCS,HIGH);
}
void Init_MAX7219(void){
Write_Max7219(0x09, 0x00); //decode: BCD
Write_Max7219(0x0a, 0x03); //Brightness
Write_Max7219(0x0b, 0x07); //
Write_Max7219(0x0c, 0x01); //
Write_Max7219(0x0f, 0x00); //
}
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);
}
}
1088AH點矩陣的圖
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