简介

这是一款3.5英寸的TFT电容式触摸显示屏。该模块分辨率为480x320，驱动IC为ILI9488，采用SPI（4线）通信方式。触摸IC为GT911，采用I2C通信方式，能实现多点触摸。模块集成SD卡槽，可以轻松的从SD卡中读取全彩色位图。模块提供了两种接线方式，一种为普通排针接线；另一种为GDI(General Display interface)接口，需有GDI接口的主控相匹配（如FireBeetle-M0），只需一根fpc线，就可即插即用，降低了接线的复杂程度。
3.5"LCD显示模块具有显示效果好、触摸灵敏、多点触摸、接线方便、等优点，可用于许多应用中：传感器监控和报警、Arduino温度监控器/风扇控制器、Touch界面等。

产品参数

• 工作电压：3.3V~5V
• TFT可视角度：120度
• 颜色深度：16位色深（RGB565）
• 像素个数：480 × 320
• 接口方式：SPI
• 驱动芯片：ILI9488
• 触摸芯片：GT911
• 亮度：300 (Typ) cd/m2
• 全屏点亮功耗：约48.1mA*5V/3.3V（Typ）
• 工作温度：-20℃~+70℃
• 显示面积：73.44×48.96 mm
• 安装孔直径：2 mm
• 尺寸：55.50x95.00 mm
• 重量： g

引脚说明

使用教程

该产品是Breakout模块，采用SPI通信方式，板载GDI接口，降低了接线的复杂程度，并且可以轻松地显示从SD卡中读取到的内容

注意：

1.GDI接口的使用需要与具有GDI接口的主控相匹配

2.建议使用Arduino1.8.10及以上版本

3.SD卡插槽接触不良，有可能会初始化失败，插拔后成功

准备

• 硬件
  • 1 x Arduino UNO控制板
  • 1 x 3.5" 48 0x320 LCD显示模块
  • 若干杜邦线
• 软件
  • Arduino IDE， 点击下载Arduino IDE
  • DFRobot_GDL库文件
  • 如何安装库文件，点击链接
  • DFRobot_GDL API接口函数，点击链接了解详情

注意：

1.本产品的演示demo全部存放于DFRobot_GDL->example->basic文件里

2.烧录Demo之前，请打开对应的实体化函数（DFRobot_ILI9488_320x480_HW_SPI）

接线图

Arduino 连接图

尺寸图

• 模块尺寸：55.50x95.00mm
• 安装孔间距：50mm，90 mm
• 安装孔尺寸：2.0mm

样例代码1-basicTest

这是一个基础显示示例，包括画点、线、圆、矩形等。

/*!
 * @file basicTest.ino
 * @brief Demonstrate various graphic painting effects
 * @n This demo supports Arduino Uno, Leonardo, Mega2560, FireBeetle-ESP32, FireBeetle-ESP8266, and FireBeetle-M0.
 * @copyright Copyright (c) 2010 DFRobot Co. Ltd (http://www.dfrobot.com)
 * @license The MIT License (MIT)
 * @author [LuoYufeng] (yufeng.luo@dfrobot.com)
 * @version V0.1
 * @date 2020-01-07
 * @url https://github.com/DFRobot/DFRobot_GDL
 */
#include "DFRobot_GDL.h"
/*M0*/
#if defined ARDUINO_SAM_ZERO
#define TFT_DC  7
#define TFT_CS  5
#define TFT_RST 6
#define TFT_BL  9
/*ESP32 and ESP8266*/
#elif defined(ESP32) || defined(ESP8266)
#define TFT_DC  D2
#define TFT_CS  D6
#define TFT_RST D3
#define TFT_BL  D13
/* AVR series mainboard */
#else
#define TFT_DC  2
#define TFT_CS  3
#define TFT_RST 4
#define TFT_BL  5
#endif

/**
 * @brief Constructor Constructor of hardware SPI communication
 * @param dc Command/data line pin for SPI communication
 * @param cs Chip select pin for SPI communication
 * @param rst reset pin of the screen
 */
//DFRobot_ST7789_240x204_HW_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST,/*bl=*/TFT_BL);
//DFRobot_ST7789_240x240_HW_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);
//DFRobot_ST7789_240x320_HW_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);
//DFRobot_ILI9341_240x320_HW_SPI  screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);
//DFRobot_ILI9488_320x480_HW_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);
/* M0 mainboard DMA transfer */
//DFRobot_ST7789_240x204_DMA_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST,/*bl=*/TFT_BL);
//DFRobot_ST7789_240x240_DMA_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);
//DFRobot_ST7789_240x320_DMA_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);
//DFRobot_ILI9341_240x320_DMA_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);
//DFRobot_ILI9488_320x480_DMA_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);


/*
 *User-selectable macro definition color
 *COLOR_RGB565_BLACK   COLOR_RGB565_NAVY    COLOR_RGB565_DGREEN   COLOR_RGB565_DCYAN 
 *COLOR_RGB565_MAROON  COLOR_RGB565_PURPLE  COLOR_RGB565_OLIVE    COLOR_RGB565_LGRAY     
 *COLOR_RGB565_DGRAY   COLOR_RGB565_BLUE    COLOR_RGB565_GREEN    COLOR_RGB565_CYAN  
 *COLOR_RGB565_RED     COLOR_RGB565_MAGENTA COLOR_RGB565_YELLOW   COLOR_RGB565_ORANGE           
 *COLOR_RGB565_WHITE   
 */
 
void setup() {
  Serial.begin(115200);
  screen.begin();
}

void loop(){
    testDrawPixel();
    testLine();
    testFastLines(COLOR_RGB565_PURPLE,COLOR_RGB565_YELLOW);       
    testRects(COLOR_RGB565_BLACK,COLOR_RGB565_WHITE);
    testRoundRects();
    testCircles(24,COLOR_RGB565_BLUE);
    testTriangles(COLOR_RGB565_YELLOW);
    testPrint();

}

/* Test to draw a pixel*/
void testDrawPixel() {
  //Clear screen
  screen.fillScreen(COLOR_RGB565_BLACK);
  int x = 0;
  int y = screen.height();
  for(int i = 0; i <= screen.width()/2; i += 10){
    for (x = screen.width() - i; x >= i; x-=10 ){
      /*
       * @ brief draw a pixel
       * @ param x coordinate
       *         y coordinate
       * c pixel color
       */
      screen.drawPixel(x, y, COLOR_RGB565_ORANGE);
      delay(10);
    }
	
    for (y = screen.height() - i; y >= i; y-=10){
      screen.drawPixel(x, y, COLOR_RGB565_ORANGE);
      delay(10);
    }
	
    for (x = i; x <= screen.width() - i + 1; x+=10 ){
      screen.drawPixel(x, y, COLOR_RGB565_ORANGE);
      delay(10);
    }
	
    for (y = i; y <= screen.height() - i + 1; y+=10){
      screen.drawPixel(x, y, COLOR_RGB565_ORANGE);
      delay(10);
    }
  }
}

/* Test to draw a line*/
void testLine(){
// 0x00FF is the color data in the format of RGB565
  uint16_t color = 0x00FF;
  screen.fillScreen(COLOR_RGB565_BLACK);
  for (int16_t x=0; x < screen.width(); x+=6) {
    /*
     * @ brief draw a line
     * @ param x0 The x-coordinate of the first vertex
     *         y0 The y-coordinate of the first vertex
     *         x1 The x-coordinate of the second vertex
     *         y1 The y-coordinate of the second vertex
     *         c line color
     */
    screen.drawLine(/*x0=*/screen.width()/*Screen width*//2, /*y0=*/screen.height()/*Screen height*//2, /*x1=*/x, /*y1=*/0, /*c=*/color+=0x0700);
  }
  for (int16_t y=0; y < screen.height(); y+=6) {
    screen.drawLine(screen.width()/2, screen.height()/2, screen.width(), y, color+=0x0700);
  }
 
  for (int16_t x = screen.width(); x >= 0; x-=6) {
    screen.drawLine(screen.width()/2, screen.height()/2, x,screen.height(), color+=0x0700);
  }
  
  for (int16_t y = screen.height(); y >= 0; y-=6) {
    screen.drawLine(screen.width()/2, screen.height()/2, 0, y, color+=0x0700);
  }
}

/* Test to fast draw line(need to set delay), only horizontal line and vertical line */
void testFastLines(uint16_t color1, uint16_t color2) {
  for (int16_t y=0; y < screen.height(); y+=4) {
    /*
     * @ brief draw a line
     * @ param x The x-coordinate of the first vertex
     *         y The y-coordinate of the first vertex
     *         w Length of line segment
     *         c line color
     */
    screen.drawFastHLine(/*x=*/0, /*y=*/y, /*w=*/screen.width(),/*c=*/color2);
    delay(10);
  }
  
  for(int16_t x=0; x < screen.width(); x+=3) {
    /*
     * @ brief draw a line
     * @ param x The x-coordinate of the first vertex
     *         y The y-coordinate of the first vertex
     *         h length of line segment
     *         c line color
     */
    screen.drawFastVLine(/*x=*/x, /*y=*/0, /*h=*/screen.height(), /*c=*/color1);
    delay(10);
  }
}

/* Test to draw a rectangle*/
void testRects(uint16_t color1, uint16_t color2) { 
    screen.fillScreen(COLOR_RGB565_BLACK);
    int16_t x=screen.width()-12;
    for (; x > 100; x-=screen.width()/40) {
      /*
       * @ brief draw a hollow rectangle
       * @ param x The x-coordinate of the vertex 
       * @ param y The y-coordinate of the vertex
       * @ param w horizontal side length
       * @ param h longitudinal side length
       * @ param color Fill color, RGB color with 565 structure
       */
      screen.drawRect(/*x=*/screen.width()/2 -x/2, /*y=*/screen.height()/2 -x/2 , /*w=*/x, /*h=*/x, /*color=*/color2+=0x0F00);
      delay(100);
    }
	
    /*
     * @ brief draw a filled rectangle
     * @ param x The x-coordinate of the vertex
     * @ param y The y-coordinate of the vertex
     * @ param w horizontal side length
     * @ param h longitudinal side length
     * @ param color Fill color, RGB color with 565 structure
     */
    screen.fillRect(/*x=*/screen.width()/2 -x/2, /*y=*/screen.height()/2 -x/2 , /*w=*/x, /*h=*/x, /*color=*/color2);
    delay(100);
    for(; x > 6; x-=screen.width()/40){
      screen.drawRect(screen.width()/2 -x/2, screen.height()/2 -x/2 , x, x, color1);
      delay(100);
    }
}

/* Test to draw a rounded rectangle */
void testRoundRects() {
  screen.fillScreen(COLOR_RGB565_BLACK);
// 0xF00F is the color data in the format of RGB565
  int color = 0xF00F;
  int i;
  int x = 0;
  int y = 0;
  int w = screen.width()-3;
  int h = screen.height()-3;
  for(i = 0 ; i <= 16; i+=2) {
    /*
     * @ brief Draw a hollow rounded rectangle
     * @ param x0 The x-coordinate of the start vertex 
     * @ param y0 The y-coordinate of the start vertex 
     * @ param w horizontal side length
     * @ param h longitudinal side length
     * @ param radius Round corner radius
     * @ param color border color, 565 structure RGB color
     */
    screen.drawRoundRect(/*x0=*/x, /*y0=*/y, /*w=*/w, /*h=*/h, /*radius=*/20, /*color=*/color);
    x+=5;
    y+=5;
    w-=10;
    h-=10;
    color+=0x0100;
    delay(50);
  }
  for(i = 0 ; i <= 16; i+=2) {
    /*
     * @ brief Draw a filled and rounded rectangle
     * @ param x0 The x-coordinate of the start vertex
     * @ param y0 The y-coordinate of the start vertex
     * @ param w horizontal side length
     * @ param h longitudinal side length
     * @ param radius Round corner radius
     * @ param color Fill color, RGB color with 565 structure
     */
    screen.fillRoundRect(/*x0=*/x, /*y0=*/y, /*w=*/w, /*h=*/h, /*radius=*/10, /*color=*/color);
    x+=5;
    y+=5;
    w-=10;
    h-=10;
    color+=0x0500;
    delay(50);
  }
}

/* Test to draw a circle */
void testCircles(uint8_t radius, uint16_t color) {
  screen.fillScreen(COLOR_RGB565_BLACK);
  for (int16_t x=radius; x <=screen.width()-radius; x+=radius*2) {
    for (int16_t y=radius; y <=screen.height()-radius; y+=radius*2) {
      /*
       * @ brief Draw a hollow circle
       * @ param x0 The x-coordinate of the center point
       * @ param y0 The y-coordinate of the center point
       * @ param r radius
       * @ param color Circle color, RGB color with 565 structure
       */
      screen.drawCircle(/*x0=*/x, /*y0=*/y, /*r=*/radius, /*color=*/color);
        if(x == y ||x == -y ||x == y + 2*radius)
          /*
           * @ brief Draw a filled circle
           * @ param x0 The x-coordinate of the center point
           * @ param y0 The y-coordinate of the center point
           * @ param r radius
           * @ param color Fill color, RGB color with 565 structure
           */
          screen.fillCircle(/*x0=*/x, /*y0=*/y, /*r=*/radius, /*color=*/color);
       color += 800;
       delay(100);
    }
  }
}

/* Test to draw a triangle */
void testTriangles(uint16_t color){
  screen.fillScreen(COLOR_RGB565_BLACK);
  
  for (int16_t i=0; i <=screen.width(); i+=24)
    /*
     * @ brief Draw a hollow triangle
     * @ param x0 The x-coordinate of the start vertex
     * @ param y0 The y-coordinate of the start vertex
     * @ param x1 The x-coordinate of the second vertex
     * @ param y1 The y-coordinate of the second vertex
     * @ param x2 The x-coordinate of the third vertex
     * @ param y2 The y-coordinate of the third vertex
     * @ param color border color, 565 structure RGB color
     */
    screen.drawTriangle(/*x0=*/i,/*y0=*/0,/*x1=*/0,/*y1=*/screen.height()-i,/*x2=*/screen.width()-i,/*y2=*/screen.height(), /*color=*/color);
	
  for (int16_t i=0; i <screen.width(); i+=24)
    screen.drawTriangle(screen.width(),i*4/3,0,screen.height()-i*4/3,i,0, color);

  for (int16_t i=0; i <screen.width(); i+=24)
    screen.drawTriangle(screen.width(),i*4/3,i,0,screen.width()-i,screen.height(), color);

  color = COLOR_RGB565_RED;
  for (int16_t i=0; i <=screen.width(); i+=24)
     /*
      * @ brief Draw a filled triangle
      * @ param x0 The x-coordinate of the start vertex
      * @ param y0 The y-coordinate of the start vertex
      * @ param x1 The x-coordinate of the second vertex
      * @ param y1 The y-coordinate of the second vertex
      * @ param x2 The x-coordinate of the third vertex
      * @ param y2 The y-coordinate of the third vertex
      * @ param color Fill color, RGB color with 565 structure
      */
    screen.fillTriangle(/*x0=*/i,/*y0=*/0,/*x1=*/0,/*y1=*/screen.height()-i,/*x2=*/screen.width()-i,/*y2=*/screen.height(), /*color=*/color+=100);
	
  for (int16_t i=0; i <screen.width(); i+=24)
    screen.fillTriangle(screen.width(),i*4/3,0,screen.height()-i*4/3,i,0, color+=100);

  for (int16_t i=0; i <screen.width(); i+=24)
    screen.fillTriangle(screen.width(),i*4/3,i,0,screen.width()-i,screen.height(), color+=100);
}

void testPrint() {
  // 0x00FF is the color data in the format of RGB565
  int16_t color = 0x00FF;
   // Set text wrapping mode
   // true = Text word wrap, false = No word wrap
  screen.setTextWrap(false);
  //Fill color, RGB color with 565 structure
  screen.fillScreen(COLOR_RGB565_BLACK);
  
  //Set the coordinate position x = 0, y = 50
  screen.setCursor(0, 50);
  //Set the text color; this is a changeable value
  screen.setTextColor(color+=0x3000);
  //Set text size to 0
  screen.setTextSize(0);
  //Output text
  screen.println("Hello World!");
  
  screen.setTextColor(color+=0x3000);
  //Set text size to 1
  screen.setTextSize(1);
  screen.println("Hello World!");
  
  screen.setTextColor(color+=0x3000);
  //Set text size to 2
  screen.setTextSize(2);
  screen.println("Hello World!");
  
  screen.setTextColor(color+=0x3000);
  //Set text size to 3
  screen.setTextSize(3);
  screen.println("Hello World!");
  
  screen.setTextColor(color+=0x3000);
  //Set text size to 4
  screen.setTextSize(4);
  screen.println("Hello!"); 
  //Set text size to 5
  screen.setTextSize(5);
  screen.print("Hello!");
  delay(2000);
  
  //Set coordinate position x = 0, y = 0
  screen.setCursor(0, 0);
  //Fill color, RGB color with 565 structure
  screen.fillScreen(COLOR_RGB565_BLACK);
  screen.setTextSize(2);
  screen.setTextColor(color+=0x3000);
  screen.print("a = ");
  
  screen.setTextColor(color+=0x3000);
  int a = 1234;
  screen.println(a, 1);
  screen.setTextColor(color+=0x3000);
  screen.print(8675309, HEX);
  screen.println("this is HEX!");
  screen.println("");
  
  screen.setTextColor(color+=0x0F00);
  screen.println("running for: ");
  screen.setTextColor(color+=0x0F00);
  //Output time in millisecond
  screen.print(millis());
  screen.setTextColor(color+=0x0F00);
  screen.println("/1000 seconds.");
  
  char text[] = "Hi DFRobot!";
  screen.setTextColor(color+=0x0F00);
  screen.setTextWrap(true);
  screen.setTextSize(3);
  screen.println(text);
  //screen.setFonts((const gdl_Font_t *)SIMKAIFont18ptBitmaps);
  screen.println(text);
  delay(2000);
}

结果

样例代码2 - gettureFont

这是UI控件Demo——数字键盘。首先点击文本框出现光标后，点击数字，文本框内会有相应数字显示。键盘右下脚的"x",用于删除文本框中的内容。

/*!
 * @file gettureFont.ino
 * @brief Control the words in the center of the screen by zooming in, zooming out, sliding up, and sliding down in a two-finger gesture.
 * @n The demo supports  Mega2560, FireBeetle-ESP32, FireBeetle-ESP8266, FireBeetle-M0
 *
 * @copyright Copyright (c) 2010 DFRobot Co. Ltd (http://www.dfrobot.com)
 * @licence The MIT License (MIT)
 * @author [fengli] (li.feng@dfrobot.com)
 * @version V1.0
 * @date 2019-12-6
 * @get from https://www.dfrobot.com
 * @url https://github.com/DFRobot/DFRobot_GDL/src/DFRpbot_UI
*/
#include "DFRobot_UI.h"
#include "Arduino.h"
#include "DFRobot_GDL.h"
#include "DFRobot_Touch.h"
/*M0*/
#if defined ARDUINO_SAM_ZERO
#define TFT_DC  7
#define TFT_CS  5
#define TFT_RST 6
/*ESP32 and ESP8266*/
#elif defined(ESP32) || defined(ESP8266)
#define TFT_DC  D2
#define TFT_CS  D6
#define TFT_RST D3
/* AVR series mainboard */
#else
#define TFT_DC  2
#define TFT_CS  3
#define TFT_RST 4
#endif

/**
   @brief Constructor  When the touch uses the gt series chip, you can call this constructor
*/
DFRobot_Touch_GT911 touch;


/**
   @brief Constructor When the screen uses hardware SPI communication, the driver IC is st7789, and the screen resolution is 240x320, this constructor can be called
   @param dc Command/data line pin for SPI communication
   @param cs Chip select pin for SPI communication
   @param rst Reset pin of the screen
*/
DFRobot_ILI9488_320x480_HW_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);
/* M0 mainboard DMA transfer */
//DFRobot_ILI9488_320x480_DMA_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);


/**
   @brief Constructor
   @param gdl Screen object
   @param touch Touch object
*/
DFRobot_UI ui(&screen, &touch);

uint8_t fontSize = 2; //Font size
uint16_t fontColor = 0xf800; //Font color
uint8_t fontLen = 4 * fontSize * 8; //String width
char * font = "DFRC"; // String
uint8_t fontHeight = fontSize * 8;//String height
uint16_t posx =  screen.width() / 2 ; //The x-coordinate of the starting position of the string
uint16_t posy =  screen.height()  / 2;//the y-coordinate of the beginning of the string

void setup()
{

  Serial.begin(9600);
  //UI initialization
  ui.begin();
  //Draw the initial string
  ui.drawString(posx - fontLen / 2-8, posy - fontHeight / 2, font, fontColor , ui.bgColor, fontSize, 0);


}


void loop()
{
  refresh();
//Serial.println(touch.scan());
}

void refresh() {
  DFRobot_UI:: eGesture_t gesture = ui.getGestures();
  /*if(gesture != ui.NONE){
    Serial.println(gesture);
    }                
  */
  switch (gesture) {
	//Gesture detected as zoom out 
    case ui.SHRINK : {
        screen.fillRect(posx - fontLen / 2 -8,  posy - fontHeight / 2, 4 * fontSize * 8, fontSize * 8, ui.bgColor);
        //fontSize decrease
	     	fontSize--;
        if (fontSize <= 1) fontSize = 1;

        fontHeight = fontSize * 8;
        fontLen = 4 * fontSize * 8;
        ui.drawString(posx - fontLen / 2-8 ,  posy - fontHeight / 2,  font, fontColor , ui.bgColor, fontSize, 0);
      }; break;
	//Gesture detected as zoom in 
    case ui.MAGNIFY : {
        screen.fillRect(posx - fontLen / 2-8 ,  posy - fontHeight / 2, 4 * fontSize * 8, fontSize * 8, ui.bgColor);
        //fontSize increase
		    fontSize++;
        if (fontSize >= 7) fontSize = 7;
        fontHeight = fontSize * 8;
        fontLen = 4 * fontSize * 8;
        ui.drawString(posx - fontLen / 2-8 , posy - fontHeight / 2, font, fontColor , ui.bgColor, fontSize, 0);
      } break;
    //Gesture detected as swiping up with two fingers
    case ui.DUPGLIDE : {
        screen.fillRect(posx - fontLen / 2-8 ,   posy - fontHeight / 2, 4 * fontSize * 8, fontSize * 8, ui.bgColor);
        posy -= 10 ;
        fontHeight = fontSize * 8;
        fontLen = 4 * fontSize * 8;
        ui.drawString(posx - fontLen / 2 - 8,  posy - fontHeight / 2, font, fontColor , ui.bgColor, fontSize, 0);
      } break;
	//Gesture detected as swiping down with two fingers
    case ui.DDOWNGLIDE : {
        screen.fillRect(posx - fontLen / 2 - 8,  posy - fontHeight / 2, 4 * fontSize * 8, fontSize * 8, ui.bgColor);
        posy += 10;
        fontHeight = fontSize * 8;
        fontLen = 4 * fontSize * 8;
        ui.drawString(posx - fontLen / 2 - 8,  posy - fontHeight / 2, font, fontColor , ui.bgColor, fontSize, 0);
      } break;
    case ui.NONE: {
        return;
      }
  }
}

结果

样例代码3 - rotate

这是一个旋转示例，使用双指进行操作：顺时针、逆时针。

/*!
 * @file rotate.ino
 * @brief Two fingers rotate left or right to change the display direction
 * @n The demo supports Mega2560, FireBeetle-ESP32, FireBeetle-ESP8266, FireBeetle-M0
 * @copyright Copyright (c) 2010 DFRobot Co. Ltd (http://www.dfrobot.com)
 * @licence The MIT License (MIT)
 * @author [fengli] (li.feng@dfrobot.com)
 * @version V1.0
 * @date 2019-12-6
 * @get from https://www.dfrobot.com
 * @url https://github.com/DFRobot/DFRobot_GDL/src/DFRpbot_UI
*/
#include "DFRobot_UI.h"
#include "Arduino.h"
#include "DFRobot_GDL.h"
#include "DFRobot_Touch.h"
#include "GrayscaleBitmap.h"
/*M0*/
#if defined ARDUINO_SAM_ZERO
#define TFT_DC  7
#define TFT_CS  5
#define TFT_RST 6
/*ESP32 and ESP8266*/
#elif defined(ESP32) || defined(ESP8266)
#define TFT_DC  D2
#define TFT_CS  D6
#define TFT_RST D3
/*AVR系列主板*/  /* AVR series motherboard */
#else
#define TFT_DC  2
#define TFT_CS  3
#define TFT_RST 4
#endif

/**
   @brief Constructor   When the touch uses the gt series chip, you can call this constructor
*/
DFRobot_Touch_GT911 touch;

/**
   @brief Constructor When the screen uses hardware SPI communication, the driver IC is st7789, and the screen resolution is 240x320, this constructor can be called
   @param dc Command/data line pin for SPI communication
   @param cs Chip select pin for SPI communication
   @param rst Reset pin of the screen
*/
DFRobot_ILI9488_320x480_HW_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);
/* M0 mainboard DMA transfer */
//DFRobot_ILI9488_320x480_DMA_SPI screen(/*dc=*/TFT_DC,/*cs=*/TFT_CS,/*rst=*/TFT_RST);



/**
   @brief Constructor
   @param gdl Screen object
   @param touch Touch object
*/
DFRobot_UI ui(&screen, &touch);
int8_t rotate =0;
void setup()
{
  
  Serial.begin(9600);
  //UI initialization
  ui.begin();
  //Draw picture
  screen.drawRGBBitmap(/*x=*/(screen.width()-100)/2,/*y=*/(screen.height()-100)/2,/*bitmap gImage_Bitmap=*/(const unsigned uint16_t*)gImage_GrayscaleBitmap,/*w=*/100,/*h=*/100);
}


void loop()
{

    //getGestures()：Recognize gestures
    DFRobot_UI:: eGesture_t gesture = ui.getGestures();
	
   switch (gesture) {
	//Clockwise rotation
    case ui.DWROTATE : { 
      rotate++;
      if(rotate>3) rotate=0;
	  //Set screen display orientation
       screen.setRotation(rotate);
       screen.drawRGBBitmap(/*x=*/(screen.width()-100)/2,/*y=*/(screen.height()-100)/2,/*bitmap gImage_Bitmap=*/(const unsigned uint16_t*)gImage_GrayscaleBitmap,/*w=*/100,/*h=*/100);

      } break; 
    //Anticlockwise rotation
    case ui.DCWROTATE : {
      if(rotate<0) {rotate=3;}
      else{
        rotate--;
      }
       screen.setRotation(rotate);
       screen.drawRGBBitmap(/*x=*/(screen.width()-100)/2,/*y=*/(screen.height()-100)/2,/*bitmap gImage_Bitmap=*/(const unsigned uint16_t*)gImage_GrayscaleBitmap,/*w=*/100,/*h=*/100);
       
       
      } break;
    case ui.NONE: {
        return;
      }
  }


}

结果

兼容性测试

疑难解答

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