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标题: Arduino入门教程—拓展实验篇九 驱动单色8*8点阵 [打印本页]
作者: AllBlue    时间: 2013-8-18 15:21
标题: Arduino入门教程—拓展实验篇九 驱动单色8*8点阵
驱动单色8*8点阵

本次实验使用Arduino 控制器直接驱动一个单色的8*8点阵，所用点阵型号为LD-1088BS，如下图：

[attach]452[/attach]
内部原理图：
[attach]451[/attach]
实际引脚编号：
[attach]456[/attach]
Arduino连接图：
[attach]450[/attach]

程序所用扩文件：

[attach]449[/attach]


例程：
[C] 纯文本查看 复制代码
/*

* Show messages on an 8x8 led matrix,

* scrolling from right to left.

*

* Uses FrequencyTimer2 library to

* constantly run an interrupt routine

* at a specified frequency. This

* refreshes the display without the

* main loop having to do anything.

*

*/



#include <FrequencyTimer2.h>



#define SPACE { \

    {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, 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, 0, 0, 0, 0, 0, 0}, \

    {0, 0, 0, 0, 0, 0, 0, 0} \

}



#define H { \

    {0, 1, 0, 0, 0, 0, 1, 0}, \

    {0, 1, 0, 0, 0, 0, 1, 0}, \

    {0, 1, 0, 0, 0, 0, 1, 0}, \

    {0, 1, 1, 1, 1, 1, 1, 0}, \

    {0, 1, 0, 0, 0, 0, 1, 0}, \

    {0, 1, 0, 0, 0, 0, 1, 0}, \

    {0, 1, 0, 0, 0, 0, 1, 0}, \

    {0, 1, 0, 0, 0, 0, 1, 0}  \

}



#define E  { \

    {0, 1, 1, 1, 1, 1, 1, 0}, \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 1, 1, 1, 1, 1, 0}, \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 1, 1, 1, 1, 1, 0}  \

}



#define L { \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 0, 0, 0, 0, 0, 0}, \

    {0, 1, 1, 1, 1, 1, 1, 0}  \

}



#define O { \

    {0, 0, 0, 1, 1, 0, 0, 0}, \

    {0, 0, 1, 0, 0, 1, 0, 0}, \

    {0, 1, 0, 0, 0, 0, 1, 0}, \

    {0, 1, 0, 0, 0, 0, 1, 0}, \

    {0, 1, 0, 0, 0, 0, 1, 0}, \

    {0, 1, 0, 0, 0, 0, 1, 0}, \

    {0, 0, 1, 0, 0, 1, 0, 0}, \

    {0, 0, 0, 1, 1, 0, 0, 0}  \

}



byte col = 0;

byte leds[8][8];



// pin[xx] on led matrix connected to nn on Arduino (-1 is dummy to make array start at pos 1)

int pins[17]= {-1, 5, 4, 3, 2, 14, 15, 16, 17,13, 12, 11, 10, 9, 8, 7, 6, };



// col[xx] of leds = pin yy on led matrix

int rows[8] = {pins[16], pins[15], pins[11], pins[6], pins[10], pins[4], pins[3], pins[13]};



// row[xx] of leds = pin yy on led matrix

int cols[8] = {pins[9], pins[14], pins[8], pins[12], pins[1], pins[7], pins[2], pins[5]};



const int numPatterns = 6;

byte patterns[numPatterns][8][8] = {

  H,E,L,L,O,SPACE

};



int pattern = 0;



void setup() {

  // sets the pins as output

  for (int i = 1; i <= 16; i++) {

    pinMode(pins, OUTPUT);

  }



  // set up cols and rows

  for (int i = 1; i <= 8; i++) {

    digitalWrite(cols[i - 1], LOW);

  }



  for (int i = 1; i <= 8; i++) {

    digitalWrite(rows[i - 1], LOW);

  }



  clearLeds();



  // Turn off toggling of pin 11

  FrequencyTimer2::disable();

  // Set refresh rate (interrupt timeout period)

  FrequencyTimer2::setPeriod(2000);

  // Set interrupt routine to be called

  FrequencyTimer2::setOnOverflow(display);



  setPattern(pattern);

}



void loop() {

    pattern = ++pattern % numPatterns;

    slidePattern(pattern, 60);

}



void clearLeds() {

  // Clear display array

  for (int i = 0; i < 8; i++) {

    for (int j = 0; j < 8; j++) {

      leds[j] = 0;

    }

  }

}



void setPattern(int pattern) {

  for (int i = 0; i < 8; i++) {

    for (int j = 0; j < 8; j++) {

      leds[j] = patterns[pattern][j];

    }

  }

}



void slidePattern(int pattern, int del) {

  for (int l = 0; l < 8; l++) {

    for (int i = 0; i < 7; i++) {

      for (int j = 0; j < 8; j++) {

        leds[j] = leds[j][i+1];

      }

    }

    for (int j = 0; j < 8; j++) {

      leds[j][7] = patterns[pattern][j][0 + l];

    }

    delay(del);

  }

}



// Interrupt routine

void display() {

  digitalWrite(cols[col], LOW);  // Turn whole previous column off

  col++;

  if (col == 8) {

    col = 0;

  }

  for (int row = 0; row < 8; row++) {

    if (leds[col][7 - row] == 1) {

      digitalWrite(rows[row], LOW);  // Turn on this led

    }

    else {

      digitalWrite(rows[row], HIGH); // Turn off this led

    }

  }

  digitalWrite(cols[col], HIGH); // Turn whole column on at once (for equal lighting times)

}


显示图片为“HELLO ”滚动显示！

Arduino直接驱动8*8点阵占用的I/O口太多，所以建议大家使用芯片驱动8*8点阵，例如74HC595或者MAX7129芯片！！

下面也为大家提供一些IC资料，有兴趣的可以研究研究~~

74HC595中文资料：[attach]492[/attach]
MAX7129中文资料：[attach]494[/attach]
MAX7129英文资料：[attach]493[/attach]


作者: /ty清風Vin/yl    时间: 2013-8-19 23:34
代码有误呀==
作者: AllBlue    时间: 2013-8-20 08:40
/ty清風Vin/yl 发表于 2013-8-19 23:34
代码有误呀==

？？？哪里请指出谢谢~
作者: xin8236    时间: 2013-10-13 20:56
5555，我的YFrobot套件中的单色点阵型号是LD-1088BHG，上下各12个针脚，怎么安啊-_-#
作者: AllBlue    时间: 2013-10-16 10:04
http://blog.bsoares.com.br/arduino/ping-pong-with-8x8-led-matrix-on-arduino
[attach]624[/attach]
程序下载：
[attach]625[/attach]
作者: dreamdesignerj    时间: 2014-1-7 21:11
不错不错，学习一下
作者: zjjdog3    时间: 2014-9-18 22:28
求问我这个反面5根针的怎么插？ 有例程吗？
[attach]881[/attach]
作者: AllBlue    时间: 2014-9-19 18:02
zjjdog3 发表于 2014-9-18 22:28
求问我这个反面5根针的怎么插？ 有例程吗？

根据你的程序来接线：
  1. //Pin connected to DS of 74HC595
  2. int SER = 9;
  3. //Pin connected to ST_CP of 74HC595
  4. int RCK  = 10;
  5. //Pin connected to SH_CP of 74HC595
  6. int SRCK  = 11;
复制代码
作者: limhy1990    时间: 2014-11-2 00:08
8*8点阵 反面5根针的 不明白 怎么弄。。。求救。。
作者: xirunamd    时间: 2015-4-13 22:35
AllBlue 发表于 2014-9-19 18:02
根据你的程序来接线：

怎么弄啊，能不能详细点
作者: AllBlue    时间: 2015-4-15 20:39
xirunamd 发表于 2015-4-13 22:35
怎么弄啊，能不能详细点

SER -- 接引脚9
RCK -- 接引脚10
SRCK  接引脚11
vcc接5V
GND 接GND
这样够详细了吗？引脚可以更改，更改后对应接线也更改就可以了！
作者: lexilin    时间: 2015-6-29 02:19
我也不懂这个五根针要怎么连啊？sketch貌似是用于自己连接64个led的，而不是针对这个led display的。。。能不能详细说明一下要怎么用五根针的连线做到hello的效果？
作者: anjiao    时间: 2015-7-22 02:23
我补一个驱动5针LED的例子
D:\Documents\Bluetooth Folder\IMG_20150722_021849.jpg
[C++] 纯文本查看 复制代码
#include <FrequencyTimer2.h>



#define NOP() do { __asm__ __volatile__ ("nop"); } while (0)

#define _countof(a)                (sizeof(a) / sizeof(a[0]))



class HC595LED

{

public:

        HC595LED(int ser, int rck, int srck)

        {

                _SER = ser;

                _RCK = rck;

                _SRCK = srck;

        }

        

        void begin()

        {

                pinMode(_SER, OUTPUT);

                pinMode(_RCK, OUTPUT);

                pinMode(_SRCK, OUTPUT);



                digitalWrite(_SER, LOW);

                digitalWrite(_RCK, LOW);

                digitalWrite(_SRCK, LOW);

        }



        void displayRow(uint8_t nRow, uint8_t data)

        {

                nRow = 7 - nRow;



                for(int i = 0; i < 8; i++)

                        _rowEnable(i == nRow);

                for(int i = 7; i >= 0; i--) {

                        _colEnable(bitRead(data, i));

                }

                flushScreen();

        }



        void clear()

        {

                for(int i = 0; i < 8; i++) 

                        _rowEnable(false);

                for(int i = 0; i < 8; i++)

                        _colEnable(false);

        }



        void writeItem(bool bHigh)

        {

                digitalWrite(_SER, bHigh ? HIGH : LOW);

                _flushItem();

        }



        void flushScreen()

        {

                digitalWrite(_RCK, HIGH);

                NOP();

                NOP();

                digitalWrite(_RCK, LOW);

        }

private:

        void _rowEnable(bool bEnable)

        {

                writeItem(!bEnable);

        }

        void _colEnable(bool bEnable)

        {

                writeItem(bEnable);

        }



        void _flushItem()

        {

                digitalWrite(_SRCK, HIGH);

                NOP();

                NOP();

                digitalWrite(_SRCK, LOW);

        }



private:

        int _SER;

        int _RCK;

        int _SRCK;

};



///////////////////////////////////////////////////////////////////////



//Pin connected to DS of 74HC595

const int SER_PIN = 8;

//Pin connected to ST_CP of 74HC595

const int RCK_PIN = 9;

//Pin connected to SH_CP of 74HC595

const int SRCK_PIN = 10;



HC595LED led(SER_PIN, RCK_PIN, SRCK_PIN);



PROGMEM const char SPACE[] = 

{

        0b00000000,

        0b00000000,

        0b00000000,

        0b00000000,

        0b00000000,

        0b00000000,

        0b00000000,

        0b00000000,

};

PROGMEM const char H[] = 

{

        0b01000010,

        0b01000010,

        0b01000010,

        0b01111110,

        0b01000010,

        0b01000010,

        0b01000010,

        0b01000010,

};

PROGMEM const char E[] = 

{

        0b01111110,

        0b01000000,

        0b01000000,

        0b01111110,

        0b01000000,

        0b01000000,

        0b01000000,

        0b01111110,

};

PROGMEM const char L[] = 

{

        0b01000000,

        0b01000000,

        0b01000000,

        0b01000000,

        0b01000000,

        0b01000000,

        0b01000000,

        0b01111110,

};

PROGMEM const char O[] = 

{

        0b00011000,

        0b00100100,

        0b01000010,

        0b01000010,

        0b01000010,

        0b01000010,

        0b00100100,

        0b00011000,

};



const char * const arrShowData[] = {H, E, L, L, O, SPACE};



char arrShowBuffer[] = 

{

        0, 0, 0, 0, 0, 0, 0, 0,

};

void display()

{

        static int s_nIndex = 0;



        led.displayRow(s_nIndex, arrShowBuffer[s_nIndex]);



        s_nIndex++;

        s_nIndex %= 8;

}



void setup() 

{

        led.begin();

    Serial.begin(9600);



    delay(1000);

        led.clear();



        FrequencyTimer2::disable();

        FrequencyTimer2::setPeriod(2000);

        FrequencyTimer2::setOnOverflow(display);

}



void loop() 

{

        int s_nIndex = 0;



        while(true) {

                noInterrupts();

                memcpy_PF(arrShowBuffer, (uint_farptr_t)arrShowData[s_nIndex], sizeof(arrShowBuffer));

                interrupts();



                s_nIndex++;

                s_nIndex %= _countof(arrShowData);



                delay(2000);

        }

}
作者: AllBlue    时间: 2015-7-22 08:16
anjiao 发表于 2015-7-22 02:23
我补一个驱动5针LED的例子

[mw_shl_code=cpp,true]#include

图片没有上传，建议将包含的库文件一并上传分享！
作者: anjiao    时间: 2015-7-22 21:30
[attach]1033[/attach]
这是连线方法和动行效果

作者: a1220529673    时间: 2015-12-11 09:48
AllBlue 发表于 2013-8-20 08:40
？？？哪里请指出谢谢~

全亮了，求破。。。。。
作者: AllBlue    时间: 2015-12-11 14:57
a1220529673 发表于 2015-12-11 09:48
全亮了，求破。。。。。

你检查下连接电路呢，这代码应该不会有问题的，都是试过的！
作者: 74865132`    时间: 2016-6-11 23:08
为什么我仿真显示不出来，是缺少库文件还是没设置好[img]C:\Users\Administrator\DesktopC:\Users\Administrator\Desktop[/img]
作者: 74865132`    时间: 2016-6-11 23:10
图如下。。。。
作者: AllBlue    时间: 2016-6-14 09:49
74865132` 发表于 2016-6-11 23:08
为什么我仿真显示不出来，是缺少库文件还是没设置好[/img]

仿真软件没用玩过
作者: 葳蕤礼赞    时间: 2016-7-30 20:04
Arduino:1.6.10 (Windows 8), 开发板："Arduino/Genuino Uno"

C:\Users\dell-xy\Desktop\sketch_jul30a\sketch_jul30a.ino:1:29: fatal error: FrequencyTimer2.h: No such file or directory

#include <FrequencyTimer2.h>

                             ^

compilation terminated.

exit status 1
为开发板 Arduino/Genuino Uno 编译时出错。

我是五针的,出现这个问题
作者: bearchen    时间: 2016-10-7 18:24
Arduino:1.6.8 Hourly Build 2016/02/16 05:07 (Windows 7), 开发板："Arduino/Genuino Uno"

libraries\FrequencyTimer2\FrequencyTimer2.cpp.o: In function `__vector_7':

C:\Users\Administrator\Documents\Arduino\libraries\FrequencyTimer2/FrequencyTimer2.cpp:42: multiple definition of `__vector_7'

sketch\FrequencyTimer2.cpp.o:sketch/FrequencyTimer2.cpp:42: first defined here

libraries\FrequencyTimer2\FrequencyTimer2.cpp.o: In function `__vector_7':

C:\Users\Administrator\Documents\Arduino\libraries\FrequencyTimer2/FrequencyTimer2.cpp:42: multiple definition of `FrequencyTimer2:nOverflow'

sketch\FrequencyTimer2.cpp.o:sketch/FrequencyTimer2.cpp:42: first defined here

libraries\FrequencyTimer2\FrequencyTimer2.cpp.o: In function `__vector_7':

C:\Users\Administrator\Documents\Arduino\libraries\FrequencyTimer2/FrequencyTimer2.cpp:42: multiple definition of `FrequencyTimer2::setOnOverflow(void (*)())'

sketch\FrequencyTimer2.cpp.o:sketch/FrequencyTimer2.cpp:42: first defined here

libraries\FrequencyTimer2\FrequencyTimer2.cpp.o: In function `__vector_7':

C:\Users\Administrator\Documents\Arduino\libraries\FrequencyTimer2/FrequencyTimer2.cpp:42: multiple definition of `FrequencyTimer2::setPeriod(unsigned long)'

sketch\FrequencyTimer2.cpp.o:sketch/FrequencyTimer2.cpp:42: first defined here

libraries\FrequencyTimer2\FrequencyTimer2.cpp.o: In function `__vector_7':

C:\Users\Administrator\Documents\Arduino\libraries\FrequencyTimer2/FrequencyTimer2.cpp:42: multiple definition of `FrequencyTimer2::enabled'

sketch\FrequencyTimer2.cpp.o:sketch/FrequencyTimer2.cpp:42: first defined here

libraries\FrequencyTimer2\FrequencyTimer2.cpp.o: In function `__vector_7':

C:\Users\Administrator\Documents\Arduino\libraries\FrequencyTimer2/FrequencyTimer2.cpp:42: multiple definition of `FrequencyTimer2::getPeriod()'

sketch\FrequencyTimer2.cpp.o:sketch/FrequencyTimer2.cpp:42: first defined here

libraries\FrequencyTimer2\FrequencyTimer2.cpp.o: In function `__vector_7':

C:\Users\Administrator\Documents\Arduino\libraries\FrequencyTimer2/FrequencyTimer2.cpp:42: multiple definition of `FrequencyTimer2::enable()'

sketch\FrequencyTimer2.cpp.o:sketch/FrequencyTimer2.cpp:42: first defined here

libraries\FrequencyTimer2\FrequencyTimer2.cpp.o: In function `__vector_7':

C:\Users\Administrator\Documents\Arduino\libraries\FrequencyTimer2/FrequencyTimer2.cpp:42: multiple definition of `FrequencyTimer2::disable()'

sketch\FrequencyTimer2.cpp.o:sketch/FrequencyTimer2.cpp:42: first defined here

collect2.exe: error: ld returned 1 exit status

exit status 1
编译有误。

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
作者: innovater    时间: 2017-2-10 18:02
有待研究
作者: innovater    时间: 2017-2-10 20:52
正在研究74HC595
作者: tiantianyouyou    时间: 2019-5-2 07:56
Arduino入门教程—拓展实验篇九 驱动单色8*8点阵
作者: tiantianyouyou    时间: 2019-5-2 08:02
MAX7219英文资料，这个好
作者: tiantianyouyou    时间: 2019-5-2 08:03
不错不错，学习一下
作者: wzcc    时间: 2019-11-5 21:40
怎么定义脚位置的？
作者: tiantianyouyou    时间: 2019-11-12 12:03
不错不错，学习一下



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