New 8x8 RGB LED Dot Matrix Module for Raspberry Pi 3 2 B+ Arduino STM32

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New 8x8 RGB LED Dot Matrix Module for Raspberry Pi 3 2 B+ Arduino STM32
The RPI-RGB-LED-Matrix 8x8 RGB full color dot matrix screen is a super - used dot matrix screen based on the 74HC595 chip. It can be compatible with almost all development boards. For example: Arduino raspberry pi, nano pi, and STM32 series and 51 single chip microcomputer.
Features:
1. Based on 74HC595 chip
2. Support SPI protocol
3. Low power consumption
4. RGB full color support
5. Using SPI protocol to communicate with single chip or development board, the speed is fast and the operation is convenient.
Application:
1. It is widely used by the maker of each guest space for artistic display, warning and reminding of products.
2. It is made into a music spectrum analyzer and a bicycle tail light because of its brightness.
3. The development board can communicate with it, fast and easy to operate.
Wiring instruction:
Raspberry pi
RPI-RGB-LED-Matrix
5V
VCC
GND
GND
GPIO11(BCM)
CLK
GPIO8(BCM)
CE
GPIO10(BCM)
MOS
I
Please refer to the following form and follow the diagram. All the wiring needs only 5 lines, which are VCC, GND, CE, MOSI, SCLK.
Driving instructions:
All of the operations here are based on the assumption that you have completed the burning of the raspberry pi operating system. If you haven't burned a good system, please refer to the documentation of the burning system in wiki.52pi.com for a system burning.
1.Log on to the system, open a terminal, and then edit the /boot/config.txt file through the following commands to enable the SPI function.
sudo vim.tiny /boot/config.txt
Enter the following parameters:
device_tree=bcm2710-rpi-3-b.dtb
dtparam=spi=on
Save and quit, reboot the raspberry pi.
2. Edit a file and name it matrix.c, then fill in the following C code and save the exit.
sudo vim.tiny matrix.c
Enter the following content:
#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>. The results can be seen by compiling and executing the file with the GCC compiler.
sudo gcc -o matrix matrix.c -lwiringPi
sudo ./matrix
Package include:
1 x RGB LED Full Color Display Screen 8x8 8*8 Dot Matrix Module for Raspberry Pi 3/2
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3.
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Terms of sale
1.If you are not satisfied when you receive your item, please return it within 30 days for a replacement or money back.   Please send ebay message to us before you return it.
2.If item is defective in 30 days, We will send you a replacement without extra charger, or offer refund after we receive the defective item.
3.If item is defective after 30 days, you can still send it back to us. We will send you a new one after receiving the defective item. But you have to pay the extra shipping fee.
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