arduino教程系列15-12864液晶实验 arduino入门,arduino教程,液晶屏

注意：1.0或者更高级版本IDE使用的库与002X IDE使用的库是不一样的，需要根据不同的IDE下载不同的库。（帖子尾部有附件下载）



12864是128*64点阵液晶模块的点阵数简称，业界约定俗成的简称。

控制芯片一般采用ST7920或者与之相兼容的。

数据总线采用8位并口与SPI串口方式。

12864液晶分带字库版本与不带字库版本。

字库版不需要用点阵生成器把汉字变成点阵后再输入，直接输入汉字内码即可显示出对应汉字，无字库版想要显示汉字，只能自己按照点阵方式驱动。



下图就是12864液晶实物。


IMGP0102_调整大小.JPG

2011-8-25 21:21 上传
(146.92 KB)





下图是arduino与12864液晶SPI连接方式的硬件连接图


Snap7.jpg

2011-8-25 21:40 上传
(176.3 KB)




IMGP0557_调整大小.JPG

2011-8-25 21:21 上传
(191.46 KB)





SPI连接方式驱动代码ARDUINO

/*
LCD  Arduino
PIN1 = GND
PIN2 = 5V
RS(CS) = 8; 
RW(SID)= 9; 
EN(CLK) = 3;
PIN15 PSB = GND;
*/
 
#include "LCD12864RSPI.h"
#define AR_SIZE( a ) sizeof( a ) / sizeof( a[0] )
 
unsigned char show0[]={0xBC,0xAB,0xBF,0xCD,0xB9,0xA4,0xB7,0xBB};//极客工坊
unsigned char show1[]="geek-workshop";
unsigned char logo0[]={                                         //笑脸
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xFF,
      0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFF,
      0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,
      0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x03,0xFE,0x00,
      0x7F,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x0F,0xF0,0x00,
      0x0F,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x1F,0x80,0x00,
      0x01,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x3E,0x00,0x00,
      0x00,0x7C,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0xF8,0x00,0x00,
      0x00,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x01,0xF0,0x00,0x00,
      0x00,0x0F,0x80,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x03,0xE0,0x00,0x00,
      0x00,0x07,0xC0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x07,0xC0,0x00,0x00,
      0x00,0x01,0xE0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x07,0x80,0x00,0x00,
      0x00,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,
      0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x1E,0x00,0x00,0x00,
      0x00,0x00,0x78,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,
      0x00,0x00,0x3C,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x38,0x00,0x40,0x00,
      0x00,0x80,0x1C,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x78,0x03,0xF8,0x00,
      0x07,0xF0,0x1E,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x70,0x07,0xFE,0x00,
      0x0F,0xFC,0x0E,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xF0,0x1F,0xBF,0x00,
      0x3F,0x7E,0x0F,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xE0,0x3E,0x0F,0x80,
      0x7C,0x1F,0x07,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xE0,0x7C,0x07,0xC0,
      0xF8,0x0F,0x87,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xE0,0xF8,0x01,0xE1,
      0xF0,0x03,0xC3,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0xF0,0x01,0xE1,
      0xE0,0x03,0xC3,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0xE0,0x00,0xE1,
      0xC0,0x01,0xC3,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,
      0x00,0x00,0x03,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,
      0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,
      0x00,0x00,0x03,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,
      0x00,0x00,0x03,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xE0,0x00,0x00,0x00,
      0x00,0x00,0x03,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xE0,0x00,0x00,0x00,
      0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xE0,0x00,0x00,0x00,
      0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xF0,0x00,0x0C,0x00,
      0x0C,0x00,0x0F,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x70,0x00,0x1E,0x00,
      0x1E,0x00,0x0E,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x78,0x00,0x1F,0x00,
      0x3E,0x00,0x1E,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x38,0x00,0x07,0x80,
      0xF8,0x00,0x1C,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x3C,0x00,0x03,0xE1,
      0xF0,0x00,0x3C,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x1E,0x00,0x01,0xFF,
      0xE0,0x00,0x78,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x0F,0x00,0x00,0xFF,
      0x80,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x07,0x00,0x00,0x3F,
      0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x07,0x80,0x00,0x00,
      0x00,0x01,0xE0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x03,0xE0,0x00,0x00,
      0x00,0x07,0xC0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x01,0xF0,0x00,0x00,
      0x00,0x0F,0x80,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0xF8,0x00,0x00,
      0x00,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x3E,0x00,0x00,
      0x00,0x7E,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x1F,0x80,0x00,
      0x01,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x0F,0xE0,0x00,
      0x07,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x03,0xFE,0x00,
      0x3F,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,
      0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFF,
      0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xFF,
      0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
 
void setup()
{
LCDA.Initialise(); // 屏幕初始化
delay(100);
}
 
void loop()
{
LCDA.CLEAR();//清屏
delay(100);
LCDA.DisplayString(0,2,show0,AR_SIZE(show0));//第一行第三格开始，显示文字极客工坊
delay(100);
LCDA.DisplayString(2,1,show1,AR_SIZE(show1));;//第三行第二格开始，显示文字geek-workshop
delay(5000);
LCDA.CLEAR();//清屏
delay(100);
LCDA.DrawFullScreen(logo0);
delay(5000);
}

实验效果如下

先来介绍一下怎样查找要输出地汉字的内码，打开汉字内码转换软件以后，点击转换就会显示出不同汉字对应的内码，比如"极"对应的内码是BCAB，那么给12864液晶发送的就是分为两段，0xBC与0xAB。这样就可以显示出极字了


Snap1.jpg

2011-8-25 21:21 上传
(66.76 KB)





本次实验使用12864液晶显示了一个笑脸图片，怎样显示任意图片呢?

先打开photoshop，新建文档，大小为128*64，位图


Snap5.jpg

2011-8-25 21:21 上传
(45.21 KB)





然后绘制出要现实的图案，比如这个笑脸，画好后保存。


Snap6.jpg

2011-8-25 21:21 上传
(152.25 KB)





然后打开取字模软件，先设置参数，如下图，主要是设置输出为C语言，大小为128*64，设置好后点击参数确定。


Snap4.jpg

2011-8-25 21:21 上传
(278.62 KB)





然后打开制作出来的图片，如果图片效果不是想要的白底黑字，参数里再重新设置下”黑白反取“


Snap2.jpg

2011-8-25 21:21 上传
(362.04 KB)





选择保存数据，跳出窗口，选择好路径进行保存。


Snap3.jpg

2011-8-25 21:21 上传
(47.71 KB)





保存出来的smile.h就是包含图片代码的文件，我们打开看一下，{ }括号中的内容，就是我们需要的。


Snap8.jpg

2011-8-26 10:38 上传
(119.68 KB)





一般使用SPI接法后，就很少使用8位接法了，因为占用端口太多了，但是还是放出来供大家学习下。



先上硬件连接图


Snap9.jpg

2011-8-27 00:02 上传
(187.91 KB)




IMGP0567_调整大小.JPG

2011-8-27 00:02 上传
(203.25 KB)





下面的是8位接法的代码，使用了库文件。ARDUINO

/*
LCD  Arduino
RS = 17; Analog Pin3
RW = 16; Analog Pin2
EN = 18; Analog Pin4
D0  = 8; 
D1  = 9;
D2  = 10; 
D3  = 11; 
D4  = 4;
D5  = 5; 
D6  = 6; 
D7  = 7;
PIN15 PSB = 5V;
*/
 
#include "LCD12864R.h"
#define AR_SIZE( a ) sizeof( a ) / sizeof( a[0] )
 
unsigned char show0[]={0xBC,0xAB,0xBF,0xCD,0xB9,0xA4,0xB7,0xBB};//极客工坊
unsigned char show1[]="geek-workshop";
 
void setup()
{
LCDA.Initialise(); // 屏幕初始化
delay(100);
}
 
void loop()
{
LCDA.CLEAR();//清屏
delay(100);
LCDA.DisplayString(0,2,show0,AR_SIZE(show0));//第一行第三格开始，显示文字极客工坊
delay(100);
LCDA.DisplayString(2,1,show1,AR_SIZE(show1));;//第三行第二格开始，显示文字geek-workshop
while(1);
}

http://pan.baidu.com/s/1dExdYV3
网盘下载如下软件
12864液晶产品手册
hs12864-15.pdf (436.36 KB)
汉字内码转换软件
汉子内码.RAR (132.4 KB)
液晶图片取模软件
12864液晶图片取模软件.rar (2.86 MB)
12864 SPI库文件（002X IDE使用）
LCD12864RSPI.zip (2.04 KB)
12864 8位接法库文件（002X IDE使用）
LCD12864R.zip (2.23 KB)

补充1.0.1版本IDE使用的12864库
LCD12864R_1.0.zip (2.23 KB)
LCD12864RSPI_1.0.zip (2.04 KB)



附上ardyPro写的更好的汉子内码转换工具



jineima.zip (387.03 KB)

0005358h6dfa04fo6wrcoi.png


via - 极客工坊

标签: Arduino教程