Controlling 8x8 Dot Matrix with Max7219 and Arduino

1// Mario's Ideas
2//MAX7219 - using Led Control library to scroll the   sample text
3#include <LedControl.h>
4
5int DIN = 11;
6int CS = 7;
7int   CLK = 13;
8LedControl lc=LedControl(DIN, CLK, CS,0);
9
10int position=0;
11
12int   Marios_ideas [8] [54] ={
13  {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
14   {0,1,0,0,0,1,0,0,1,1,0,0,1,1,1,0,0,0,0,0,1,1,0,1,0,1,1,0,0,0,0,0,0,1,1,1,0,0,1,1,1,0,0,1,1,0,0,0,1,1,0,0,0,0},
15   {0,1,1,0,1,1,0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,1,0,0,0,1,0,1,0,0,1,0,1,0,0,0,1,0,0,1,0,1,0,0,1,0,0,0},
16   {0,1,0,1,0,1,0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,0,0,0,0,1,0,1,0,0,1,0,1,0,0,0,1,0,0,1,0,1,0,0,0,0,0,0},
17   {0,1,0,0,0,1,0,1,1,1,1,0,1,1,1,0,0,1,0,1,0,0,1,0,0,1,1,0,0,0,0,1,0,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,1,0,0,0,0},
18   {0,1,0,0,0,1,0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,0,0,0,1,0,0,0,1,0,1,0,0,1,0,1,0,0,0,1,0,0,1,0,0,0,0,1,0,0,0},
19   {0,1,0,0,0,1,0,1,0,0,1,0,1,0,0,1,0,1,0,0,1,1,0,0,1,0,0, 1,0,0,0,1,0,1,1,1,0,0,1,0,0,0,1,0,0,1,0,1,0,0,1,0,0,0},
20   {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,1,1,0,0,0,0}
21   };
22
23
24void setup() {
25
26   lc.shutdown(0,false);
27   lc.setIntensity(0,0);
28    lc.clearDisplay(0);
29}
30
31void loop() {
32  for (int j=0;j<8;j++){
33     for (int i=0;i<8;i++){
34    lc.setLed(0,i,j,Marios_ideas[j][(i+position)-abs((i+position)/54)*54]);
35     }
36  }
37  delay(20);
38  position=position+1;
39}  
40

1//Mario's Ideas
2//MAX7219 - using Led Control library to display 8x8   bitmap
3#include <LedControl.h>
4
5int DIN = 11;
6int CS = 7;
7int CLK   = 13;
8LedControl lc=LedControl(DIN, CLK, CS,0);
9
10int Cat[8] ={B10001000,B11111000,B10101000,B01110001,B00100001,B01111001,B01111101,B10111110   };
11byte Apple [8]={B00011000,B00001000,B01110110,B11111111,B11111111,B11111111,B01111010,B00110100};
12
13void   setup() {
14  lc.shutdown(0,false);
15  lc.setIntensity(0,0);
16  lc.clearDisplay(0);
17}
18   
19void loop(){
20  for(int i=0;i<8;i++) lc.setRow(0,i,Apple[i]);
21  delay(5000);
22   lc.clearDisplay(0);
23  for(int i=0;i<8;i++) lc.setRow(0,i,Cat[i]);
24  delay(5000);
25   lc.clearDisplay(0);
26}
27
28

1//Mario's Ideas
2//MAX7219 - using Led Control library to display all   leds one by one
3#include <LedControl.h>
4
5int DIN = 11;
6int CS = 7;
7int   CLK = 13;
8
9LedControl lc=LedControl(DIN, CLK, CS,0);
10
11
12
13void setup()   {
14
15  lc.shutdown(0,false);
16  lc.setIntensity(0,0);
17  lc.clearDisplay(0);
18}
19
20void   loop() {
21  for(int j=0;j<8;j++){
22     for(int i=0;i<8;i++){
23       lc.setLed(0,j,i,true);
24        delay(100);
25       lc.setLed(0,j,i,false);
26     }
27  }
28}

1// Mario's Ideas
2//MAX7219 - using SPI library to display 8x8 bitmap
3#include   <SPI.h>
4#define CS 7
5
6// MAX7219 Control registers
7
8#define DECODE_MODE   9 
9#define INTENSITY 0x0A
10#define SCAN_LIMIT 0x0B 
11#define SHUTDOWN 0x0C
12#define   DISPLAY_TEST 0x0F
13
14byte Apple [8]={B00011000,B00001000,B01110110,B11111111,B11111111,B11111111,B01111010,B00110100};
15
16void   SendData(uint8_t address, uint8_t value) {  
17  digitalWrite(CS, LOW);   
18   SPI.transfer(address);      // Send address.
19  SPI.transfer(value);        //   Send the value.
20  digitalWrite(CS, HIGH); // Finish transfer.
21}
22void setup()   {
23  pinMode(CS, OUTPUT);  
24  SPI.setBitOrder(MSBFIRST);   // Most significant   bit first 
25  SPI.begin();                 // Start SPI
26  SendData(DISPLAY_TEST,   0x01);       // Run test - All LED segments lit.
27  delay(1000);
28  SendData(DISPLAY_TEST,   0x00);           // Finish test mode.
29  SendData(DECODE_MODE, 0x00);            //   Disable BCD mode. 
30  SendData(INTENSITY, 0x0e);              // Use lowest intensity.   
31  SendData(SCAN_LIMIT, 0x0f);             // Scan all digits.
32  SendData(SHUTDOWN,   0x01);               // Turn on chip.
33}
34void loop()  {
35
36for (int i=1;i<9;i++)   SendData(i, Apple[i-1]);
37
38}