RPI-595-IO-Expand Module(English)
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RPI-595-IO-Expand Module
Description
The "RPI-595-IO-Expand Module" uses four 74HC595 chips to expand IO ports up to 32.In this case ,this module can solve the problem in Raspberry Pi like enlightening LED matrix,driving the lattice screen ,or in any situation ,that IO port insufficient
Technical Details
Type | Value |
---|---|
Name | RPI-595-IO-Expand Module |
Working voltage | 2.4V-5V |
IO voltage | 3.3V |
Number of IO Expanded | 32 |
Communicate interface | SPI |
Maximum communicate speed | 100MHZ |
Input and Output | 8-bit serial input and 8-bit serial or parallel output |
Product Scale
schematic
Learn
how to use this 595-IO-Expand Module to enlighten our RGB-LED-Matrix Module RPI-RGB-LED-Matrix?
- just mount the LED Matrix module on 595-IO-Expand module like following picture
- install wiringPi library you can refer from this link http://wiringpi.com/download-and-install/
- After installing wiringPi, type the following code in the console to build a .c file
sudo vim.tiny RGB8x8.c
File:8x8 tech2.png
- Copy and paste the following demo code into RGB8x8.c
- Under the vim.tiny editor, type ":", then type "wq" and press "enter" to save the RGB8x8.c file and exit editor
- Complie it:
gcc RGB8x8.c -lwiringPi -o RGB8x8
- Lastly, type
sudo ./RGB8x8 -g 0 1
,to load the executable file ,and in the matrix board you will find the green LED on line 0,row 1 is turned on as the following photo shows.
示例代码说明
#include "OLEDType_SSD1306.h" //include driver file #include "OLED_GFX.h" #include "OLED_SSD1306.h" OLED_SSD1306 display; // instantiation OLED_SSD1306 const unsigned char rpi_2[128] = { /* 0X00,0X01,0X1A,0X00,0X20,0X00, */ //binary file of picture 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X07,0XC1,0XF0,0X00,0X18,0X32,0X06,0X00, 0X10,0X0C,0X02,0X00,0X11,0X0C,0X02,0X00,0X10,0X4C,0X84,0X00,0X08,0X2D,0X04,0X00, 0X0C,0X1E,0X08,0X00,0X06,0X3F,0X10,0X00,0X03,0XE1,0XF0,0X00,0X04,0X40,0X18,0X00, 0X08,0XC0,0X88,0X00,0X09,0XFF,0XE4,0X00,0X0F,0X1C,0X34,0X00,0X1E,0X0C,0X1E,0X00, 0X24,0X0C,0X12,0X00,0X24,0X0C,0X01,0X00,0X24,0X0C,0X11,0X00,0X26,0X1E,0X19,0X00 0X2F,0XE1,0XFB,0X00,0X1B,0XC0,0XE6,0X00,0X10,0XC0,0XC6,0X00,0X10,0XC0,0X84,0X00, 0X08,0X40,0X84,0X00,0X08,0X73,0X0C,0X00,0X06,0X7F,0X98,0X00,0X01,0XC0,0XE0,0X00, 0X00,0XC0,0XC0,0X00,0X00,0X33,0X00,0X00,0X00,0X0C,0X00,0X00,0X00,0X00,0X00,0X00, }; unsigned char rpi_3[128] = { /* 0X00,0X01,0X1A,0X00,0X20,0X00, */ //binary file of picture 0XFF,0XFF,0XFF,0XC0,0XFF,0XFF,0XFF,0XC0,0XF8,0X3E,0X0F,0XC0,0XE7,0XCD,0XF9,0XC0, 0XEF,0XFB,0XFD,0XC0,0XEE,0XF3,0XFD,0XC0,0XEF,0XB3,0X7B,0XC0,0XF7,0XD2,0XFB,0XC0, 0XFF,0XE1,0XFF,0XC0,0XFD,0XC0,0XEF,0XC0,0XFC,0X1E,0X0F,0XC0,0XFB,0XBF,0XE7,0XC0, 0XF7,0X3F,0X77,0XC0,0XF6,0X00,0X1B,0XC0,0XF0,0XE3,0XCB,0XC0,0XE1,0XF3,0XE1,0XC0, 0XDB,0XF7,0XFD,0XC0,0XDB,0XF3,0XFE,0XC0,0XDB,0XF3,0XEE,0XC0,0XD9,0XE1,0XE6,0XC0, 0XD0,0X1E,0X04,0XC0,0XE4,0X3F,0X19,0XC0,0XEF,0X3F,0X39,0XC0,0XFF,0XBF,0X7B,0XC0, 0XF7,0XBF,0X7B,0XC0,0XF7,0X8C,0XF3,0XC0,0XF9,0X80,0X67,0XC0,0XFE,0X3F,0X1F,0XC0, 0XFF,0X3F,0X3F,0XC0,0XFF,0XDC,0XFF,0XC0,0XFF,0XF3,0XFF,0XC0,0XFF,0XFF,0XFF,0XC0, }; int main(int argc, char **argv) { if ( !display.init(OLED_I2C_RESET,OLED_OLED_I2C_128x32) ) //initiate the I2C interface screen ,otherwise ,exit exit(EXIT_FAILURE); display.begin(); //start display display.clearDisplay(); //clear screen display.drawBitmap(0,0,rpi_2,32,32,1); //picture display location X:0,Y:0,picture file :RPI_2,picture high:32,picture with:32,font:black display.drawBitmap(96,0,rpi_2,32,32,1); //picture display location X:96,Y:0,picture file :RPI_2,picture high:32,picture with:32,font:black display.drawRect(0,0,128,32,0); //display white display.setTextSize(1); //set font size one display.setTextColor(WHITE); //set font color white display.setCursor(29,0); //set character display location X:29,:Y:0 display.print("Hello World"); //set display content Hello World display.setCursor(29,16); //set ddisplay location X:29,Y:16 display.print("www.52pi.cn"); //set display ccontent www.52pi.cn display.display(); //start display usleep(10000); //delay }
购买链接
附件
1306-0.91-CODE.zip
SSD1306-Revision 1.0.pdf
Category:名称
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