Handson Technology MAX7218, User Manual

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Connecting Table:
Arduino MAX7219 Module
5V VCC
GND GND
D7 DIN
D5 CS
D6 CLK
Once we wire up the modules we are ready to take a look at the Arduino code of the first example. We will use the
MaxMatrix library which can be downloaded from
GitHub .
Copy and paste the below sketch to Arduino IDE and upload to Arduino Uno board:
/*
8x8 LED Matrix MAX7219 Example 01
Based on the following library:
GitHub | riyas-org/max7219
https://github.com/riyas-org/max7219
*/
#include <MaxMatrix.h>
int DIN = 7 ; // DIN pin of MAX7219 module
int CLK = 6 ; // CLK pin of MAX7219 module
int CS = 5 ; // CS pin of MAX7219 module
int maxInUse = 1 ;
MaxMatrix m
( DIN , CS , CLK , maxInUse );
char A [] = { 4 , 8 ,
B01111110 ,
B00010001 ,
B00010001 ,
B01111110 ,
};
char B [] = { 4 , 8 ,
B01111111 ,
B01001001 ,
B01001001 ,
B00110110 ,
};
char smile01 [] = { 8 , 8 ,
B00111100 ,
B01000010 ,
B10010101 ,
B10100001 ,
B10100001 ,
B10010101 ,
B01000010 ,
B00111100
};
char smile02 [] = { 8 , 8 ,
B00111100 ,
B01000010 ,
B10010101 ,
B10010001 ,
B10010001 ,
B10010101 ,
B01000010 ,