arduino教程系列33-Mega 2560+TFT3.2寸屏的演示实验

经过了一段时间的学习,慢慢的对TFT 有一些些的了解,对于我们这些初学者来说,写驱动那是不可能的事情,唯一能做的就是看得懂驱动是啥、或者是很好的阅读驱动程序即可。如果是应用,那会这些足矣!如果是开发的,那还需要更多的学习和了解。之前群里的Zzz玩过TFT 3.2+mega2560的,只是他时间有点忙吧,没时间出来写测评,我现在能驱动了,就出来说一下是怎么用的吧。欢迎大家一起讨论实验中的问题,毕竟把问题都回答完了就会理解一点的。

介绍

HY-TFT320是一个3.2英寸屏幕的TFT液晶模块,320X240(分辨率),65K色,40引脚接口,而不只是一个LCD的模块,因为它包含触摸功能和SD卡,所以这是一个强大的显示扩展模块。这个TFT的控制IC是SSD1289,它是16位数据接口的,相对比较容易驱动它,我们可以使用STM32、AVR、8051单片机对它进行控制,HY-TFT320里面也包含了一个触摸控制IC(XPT2046),而且触摸接口也是包含在屏幕的40引脚中,其中还含有SD卡相应的接口,所以此块TFT模块功能还算是比较丰富的。

规格:

1、3.2寸彩屏TFT LCD

2、分辨率 320X240

3、65535种颜色(16位)

4、强大的16位控制器(SSD1289)

5、内置视频内存缓冲区

6、集成电阻触摸屏

7、集成SD卡

8、5V操作电压

9、LED背光



应用

数码相框(DPF)

视频终端

测试设备

GPS

游戏机

视频电视和便携式VCD、DVD



引脚定义:

3_2TFT_pin.jpg

2012-6-20 16:16 上传
(31.44 KB)


3.2.jpg

2012-6-20 16:16 上传
(115.12 KB)



首先所使用的器材:

一个mega 2560

一个mega V4 扩展板

一个 TFT 3.2寸(主控IC是SSD1289 、触控IC是XPT2046)

一条USB线

若干条杜邦线等等



在这里引用一下本链接的学习资料:http://www.geeetech.com/2012/04/interface-3-2tft-lcd-module-to-arduino/



大概的连接方法是这样的:

(LEDK -> GND) only 3.2″ TFT LCD

LEDA -> 5V

VCC -> 5V

RD -> 3.3V

GND -> GND

DB0->DB7 to pin D37->D30

DB8->DB15 to pin D22->D29

RS -> D38

WR -> D39

CS(pin6) -> D40

RSET-> D41



把线连接好以后,需要把这个库文件拷到Arduino IDE libraries 里面!



看一下我们的实物连接图!

10.jpg

2012-4-16 09:52 上传
(135.02 KB)





下面是主要的代码!因为现在对于我的TFT 3.2寸没有合适的转接板,所以需要我们一条条连连起来,除非需要自己画一个转接板,这样用起来就方便很多很多啊!

#include <ITDB02_Graph16.h>
 
// Declare which fonts we will be using
extern uint8_t SmallFont[];
 
// Uncomment the next line for the ITDB02 Shield
//ITDB02 myGLCD(19,18,17,16);
 
// Uncomment the next line for the ITDB02 Mega Shield
ITDB02 myGLCD(38,39,40,41);
 
void setup()
{
  randomSeed(analogRead(0));
 
// Setup the LCD
  myGLCD.InitLCD();
  myGLCD.setFont(SmallFont);
}
 
void loop()
{
  int buf[238];
  int x, x2;
  int y, y2;
  int r;
 
// Clear the screen and draw the frame
  myGLCD.clrScr();
 
  myGLCD.setColor(255, 0, 0);
  myGLCD.fillRect(0, 0, 239, 13);
  myGLCD.setColor(64, 64, 64);
  myGLCD.fillRect(0, 306, 239, 319);
  myGLCD.setColor(255, 255, 255);
  myGLCD.setBackColor(255, 0, 0);
  myGLCD.print("ITDB02 - 240x320 Color Display", CENTER, 1);
  myGLCD.setColor(255, 128, 128);
  myGLCD.setBackColor(64, 64, 64);
  myGLCD.print("H.Karlsen", LEFT, 307);
  myGLCD.print("(C)2010", RIGHT, 307);
  myGLCD.setColor(255,255,0);
  myGLCD.print("Portrait", CENTER, 307);
 
  myGLCD.setColor(0, 0, 255);
  myGLCD.drawLine(0, 14, 239, 14);
  myGLCD.drawLine(0, 14, 0, 305);
  myGLCD.drawLine(239, 14, 239, 305);
  myGLCD.drawLine(0, 305, 239, 305);
 
// Draw crosshairs
  myGLCD.setColor(0, 0, 255);
  myGLCD.setBackColor(0, 0, 0);
  myGLCD.drawLine(119, 15, 119, 304);
  myGLCD.drawLine(1, 159, 238, 159);
  for (int i=9; i<240; i+=10)
    myGLCD.drawLine(i, 157, i, 161);
  for (int i=19; i<300; i+=10)
    myGLCD.drawLine(117, i, 121, i);
 
// Draw sin-, cos- and tan-lines  
  myGLCD.setColor(0,255,255);
  myGLCD.print("Sin", 5, 15);
  for (int i=1; i<238; i++)
  {
    myGLCD.drawPixel(i,159+(sin(((i*1.51)*3.14)/180)*100));
  }
 
  myGLCD.setColor(255,0,0);
  myGLCD.print("Cos", 5, 27);
  for (int i=1; i<238; i++)
  {
    myGLCD.drawPixel(i,159+(cos(((i*1.51)*3.14)/180)*100));
  }
 
  myGLCD.setColor(255,255,0);
  myGLCD.print("Tan", 5, 39);
  for (int i=1; i<238; i++)
  {
    myGLCD.drawPixel(i,159+(tan(((i*1.51)*3.14)/180)));
  }
 
  delay(2000);
 
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,238,304);
  myGLCD.setColor(0, 0, 255);
  myGLCD.setBackColor(0, 0, 0);
  myGLCD.drawLine(119, 15, 119, 304);
  myGLCD.drawLine(1, 159, 238, 159);
 
// Draw a moving sinewave
  x=1;
  for (int i=1; i<6902; i++)
  {
    x++;
    if (x==239)
      x=1;
    if (i>239)
    {
      if ((x==119)||(buf[x-1]==159))
        myGLCD.setColor(0,0,255);
      else
        myGLCD.setColor(0,0,0);
      myGLCD.drawPixel(x,buf[x-1]);
    }
    myGLCD.setColor(0,255,255);
    y=159+(sin(((i*1.4)*3.14)/180)*(100-(i / 100)));
    myGLCD.drawPixel(x,y);
    buf[x-1]=y;
  }
 
  delay(2000);
 
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,238,304);
 
// Draw some filled rectangles
  for (int i=1; i<6; i++)
  {
    switch (i)
    {
      case 1:
        myGLCD.setColor(255,0,255);
        break;
      case 2:
        myGLCD.setColor(255,0,0);
        break;
      case 3:
        myGLCD.setColor(0,255,0);
        break;
      case 4:
        myGLCD.setColor(0,0,255);
        break;
      case 5:
        myGLCD.setColor(255,255,0);
        break;
    }
    myGLCD.fillRect(30+(i*20), 70+(i*20), 90+(i*20), 130+(i*20));
  }
 
  delay(2000);
 
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,238,304);
 
// Draw some filled, rounded rectangles
  for (int i=1; i<6; i++)
  {
    switch (i)
    {
      case 1:
        myGLCD.setColor(255,0,255);
        break;
      case 2:
        myGLCD.setColor(255,0,0);
        break;
      case 3:
        myGLCD.setColor(0,255,0);
        break;
      case 4:
        myGLCD.setColor(0,0,255);
        break;
      case 5:
        myGLCD.setColor(255,255,0);
        break;
    }
    myGLCD.fillRoundRect(150-(i*20),70+(i*20), 210-(i*20), 130+(i*20));
  }
 
  delay(2000);
 
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,238,304);
 
// Draw some filled circles
  for (int i=1; i<6; i++)
  {
    switch (i)
    {
      case 1:
        myGLCD.setColor(255,0,255);
        break;
      case 2:
        myGLCD.setColor(255,0,0);
        break;
      case 3:
        myGLCD.setColor(0,255,0);
        break;
      case 4:
        myGLCD.setColor(0,0,255);
        break;
      case 5:
        myGLCD.setColor(255,255,0);
        break;
    }
    myGLCD.fillCircle(60+(i*20),100+(i*20), 30);
  }
 
  delay(2000);
 
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,238,304);
 
// Draw some lines in a pattern
  myGLCD.setColor (255,0,0);
  for (int i=15; i<304; i+=5)
  {
    myGLCD.drawLine(1, i, (i/1.22)-10, 304);
  }
  myGLCD.setColor (255,0,0);
  for (int i=304; i>15; i-=5)
  {
    myGLCD.drawLine(238, i, (i/1.22)-11, 15);
  }
  myGLCD.setColor (0,255,255);
  for (int i=304; i>15; i-=5)
  {
    myGLCD.drawLine(1, i, 251-(i/1.22), 15);
  }
  myGLCD.setColor (0,255,255);
  for (int i=15; i<304; i+=5)
  {
    myGLCD.drawLine(238, i, 250-(i/1.22), 304);
  }
 
  delay(2000);
 
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,238,304);
 
// Draw some random circles
  for (int i=0; i<100; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    x=32+random(175);
    y=45+random(212);
    r=random(30);
    myGLCD.drawCircle(x, y, r);
  }
 
  delay(2000);
 
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,238,304);
 
// Draw some random rectangles
  for (int i=0; i<100; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    x=2+random(236);
    y=16+random(287);
    x2=2+random(236);
    y2=16+random(287);
    myGLCD.drawRect(x, y, x2, y2);
  }
 
  delay(2000);
 
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,238,304);
 
// Draw some random rounded rectangles
  for (int i=0; i<100; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    x=2+random(236);
    y=16+random(287);
    x2=2+random(236);
    y2=16+random(287);
    myGLCD.drawRoundRect(x, y, x2, y2);
  }
 
  delay(2000);
 
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(2,16,238,304);
 
  for (int i=0; i<100; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    x=2+random(236);
    y=16+random(289);
    x2=2+random(236);
    y2=16+random(289);
    myGLCD.drawLine(x, y, x2, y2);
  }
 
  delay(2000);
 
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,238,304);
 
  for (int i=0; i<10000; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    myGLCD.drawPixel(2+random(236), 16+random(289));
  }
 
  delay(2000);
 
  myGLCD.fillScr(0, 0, 255);
  myGLCD.setColor(255, 0, 0);
  myGLCD.fillRoundRect(30, 100, 209, 219);
 
  myGLCD.setColor(255, 255, 255);
  myGLCD.setBackColor(255, 0, 0);
  myGLCD.print("That's it!", CENTER, 133);
  myGLCD.print("Restarting in a", CENTER, 159);
  myGLCD.print("few seconds...", CENTER, 172);
 
  myGLCD.setColor(0, 0, 0);
  myGLCD.setBackColor(0, 0, 255);
  myGLCD.print("Runtime: (msecs)", CENTER, 290);
  myGLCD.printNumI(millis(), CENTER, 305);
 
  delay (10000);
}

所用到的库文件!

geeetech.com.zip 网盘下载http://pan.baidu.com/s/1dExdYV3

大家也把自己用过得,有什么问题的,都贴出来大家一起讨论,研究!
via - 极客工坊

标签: Arduino教程