Monday Kids LED Full Color 8*8 Dot Matrix Screen for Raspberry Pi 3/2/B+ RGB LED Display Board 8x8 RPI-RGB-LED-Matrix

How to light it up:

1. After power on and login to system. you can open a terminal and edit /boot/config.txt file to enable SPI function.

sudo vim.tiny /boot/config.txt

and input those parameters:

device_tree=bcm2710-rpi-3-b.dtb

dtparam=spi=on

2.Edit a file named it matrix.c and input following paragraph:

sudo vim.tiny matrix.c

and input those code:

#include

#include

#include

#include

#define RED_DATA 0

#define BLUE_DATA 1

#define GREEN_DATA 2

int main(void)

{

static uint8_t data[4] = {0x0,0x0,0x0,0x0};

wiringPiSetup();

wiringPiSPISetup(0,500000);

while(1)

{

static uint8_t heart[8] = {0x00, 0x66, 0xFF, 0xFF, 0xFF, 0x7E, 0x3C, 0x18};

int j;

int x=2;

for ( j=0;j<8;j++)

{

data[0] = ~heart[j];

data[2] = 0xFF;

data[1] = 0xFF;

data[3] = 0x01 << j ;

wiringPiSPIDataRW(0,data,sizeof(data));

delay(x);

};

};

}

3.Compile it and run it.

sudo gcc -o matrix matrix.c -lwiringPi

sudo ./matrix