简介

2.0"LCD显示模块采用ST7789V驱动芯片，其分辨率为320x240，采用SPI通信方式。这款显示模块采用IPS TFT显示屏，具有优秀的可视角度，可以显示18位颜色（但基本使用16位颜色）,对于彩色位图具有优秀的显示效果，并且模块板载SD卡槽，可以轻松的从SD卡中读取全彩色位图。这样一款Breakout显示模块为用户提供了两种接线方式，一种为普通排针接线方式；另一种为GDI(General Display interface)接口，与具有GDI接口的主控相匹配，只需一根fpc线即可使用，降低了接线的复杂程度。

2.0寸显示模块具有高分辨率、可视角度宽、接线方便的fpc等优点，适合许多显示应用：波形显示器、电子纪念盒、桌面摆件等。

产品参数

• 工作电压：3.3V~5V
• IPS可视角度：80/80/80/80
• 颜色深度：16位色深（RGB565）
• 像素个数：240列 × 320行
• 接口方式：SPI
• 驱动芯片：ST7789
• 亮度：250 (Typ) cd/m2
• 全屏点亮功耗：约29mA（3.3V）/29mA（5V）（Typ）
• 工作温度：-30℃~+70℃
• 显示面积：40.8×30.6 mm
• 安装孔直径：2 mm
• 尺寸：60.00x35.70 mm
• 重量：22 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 1.54" 240x240 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_ST7789_240x320_HW_SPI）

接线图

Arduino 连接图

尺寸图

• 模块尺寸：60.00x35.70mm
• 安装孔间距：56mm，31.70mm
• 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 (https://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 - icon

这是常用图标的示例
1.我们使用GIMP2点击下载将图标转换成代码，便于显示;
2.我们提供了一些图标，GIMP2点击下载。

/*!
 * @file icon.ino
 * @brief 在屏幕上显示一些小图标
 * @n 本示例支持的主板有Arduino Uno, Leonardo, Mega2560, FireBeetle-ESP32, FireBeetle-ESP8266, FireBeetle-M0
 * @copyright  Copyright (c) 2010 DFRobot Co.Ltd (https://www.dfrobot.com)
 * @licence     The MIT License (MIT)
 * @author [YeHangYu](hangyu.ye@dfrobot.com)
 * @version  V0.1
 * @date  2020-01-07
 * @url https://github.com/DFRobot/DFRobot_GDL
 */
#include "DFRobot_GDL.h"
#include "Icon.h"
//自定义通信引脚
/*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*/
#else
#define TFT_DC  2
#define TFT_CS  3
#define TFT_RST 4
#endif

/**
 * @brief Constructor  硬件SPI通信的构造函数
 * @param dc  SPI通信的命令/数据线引脚
 * @param cs  SPI通信的片选引脚
 * @param rst  屏的复位引脚
 */
//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主板下DMA传输*/
//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);



void setup() {
  Serial.begin(115200);
  screen.begin();
}

void loop() {
  int w = screen.width();
  int h = screen.height();
  int a = millis()/1000;//获取时间
     //0x00FF 是格式为RGB565的颜色数据
  uint16_t color = 0x00FF;
  
  screen.fillScreen(COLOR_RGB565_WHITE);
  
  while(1) {
    for(int i = 0;i < 12; i++){
      //用字库显示时间，程序执行秒数
      screen.fillRect(16,16,w-16*2,35, COLOR_RGB565_WHITE);
      screen.setTextWrap(false);
	   //0x30FF 是格式为RGB565的颜色数据
      screen.setTextColor(0x30FF);
      screen.setTextSize(3);
      screen.setCursor(30, 30);
      screen.println("Time:");
	   //0x00FF 是格式为RGB565的颜色数据
      screen.setTextColor(0x00FF);
      screen.setTextSize(3);
      screen.setCursor(120, 30);
      a = millis()/1000;
      screen.println(a, 1);
      /**
       * @brief 填充圆角矩形
       * @param x      矩形的起始点坐标
       * @param y      矩形的起始点坐标
       * @param w      矩形宽度
       * @param h      矩形高度
       * @param r      圆角半径
       * @param color  矩形颜色
       */
       screen.fillRoundRect(w/2-48-12, h/2-16-8, 32*3+12*2, 32+8*2, 20, 0x0000);
       /**
       * @brief 画水平线和竖线来绘制边框
       * @param x      画线起始点的x坐标
       * @param y      画线起始点的y坐标
       * @param h      线的长度
       * @param color  线的颜色
       */
      for(int x = 0; x<16 ;x++)
      screen.drawFastVLine(/*x=*/x,/*y=*/0,/*h=*/h,/*color=*/color);
      for(int y = 0; y<16 ;y++)
      screen.drawFastHLine(/*x=*/16,/*y=*/y,/*w=*/w-16*2,/*color=*/color);
      for(int x = w-1; x>=w-16 ;x--)
      screen.drawFastVLine(x,0,h, color);
      for(int y = h-1; y>=h-16 ;y--)
      screen.drawFastHLine(16,y,w-16*2,color);
      /**
       * @brief 画位顺序不同的单色图
       * @param x      0 设置画图起点是屏幕左上方，靠左
       * @param y      0 靠上
       * @param bitmap gImage_XBitmap 头文件XBitmap中的数组，数组元素是单字节
       * @param w      240 图片宽度
       * @param h      240 图片高度
       * @param color  为图片黑色部分设置为颜色
       */
      screen.drawXBitmap(/*x=*/w/2-48,/*y=*/h/2-16,/*bitmap gImage_Bitmap=*/gImage[i],/*w=*/32,/*h=*/32,color+=0x0700);
      //延时1秒
      delay(1000);
  
      screen.drawXBitmap(/*x=*/w/2-16,/*y=*/h/2-16,/*bitmap gImage_Bitmap=*/gImage[i+1],/*w=*/32,/*h=*/32,color+=0x0700);
      delay(1000);
      
      screen.drawXBitmap(/*x=*/w/2+16,/*y=*/h/2-16,/*bitmap gImage_Bitmap=*/gImage[i+2],/*w=*/32,/*h=*/32,color+=0x0700);
      delay(1000);

    }
  }
  

}

结果

样例代码3 - UI控件

这是一个加载控件的显示示例，显示了三种不同的加载控件

/*!
 * @file UI_bar.ino
 * @brief Create a progress bar control on the screen that allows the user to customize the parameters of the progress bar, or they can use the 
 * default parameters.
 * @n The user can control the value of the progress bar through the callback function of the progress bar.
 * @n The example supports Arduino Uno, Leonardo, Mega2560, FireBeetle-ESP32, FireBeetle-ESP8266, FireBeetle-M0.
 * @copyright  Copyright (c) 2010 DFRobot Co.Ltd (https://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 "DFRobot_GDL.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*/
#else
#define TFT_DC  2
#define TFT_CS  3
#define TFT_RST 4
#endif

/**
 * @brief Constructor  Constructors for hardware SPI communication
 * @param dc  Command pin or data line pin of SPI communication 
 * @param cs  Chip select pin for SPI communication
 * @param rst Reset pin of the screen
 * @param bl  Screen backlight pin
 */
//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主板下DMA传输*/
//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);


/**
 * @brief Construct a function
 * @param gdl Screen object
 * @param touch Touch object
 */
DFRobot_UI ui(&screen, NULL);


uint8_t value1 = 0;
uint8_t value2 = 0;
uint8_t value3 = 0;
//Callback function of progress bar1
void barCallback1(DFRobot_UI:: sBar_t &obj){
    //Enable the progress bar plus 1 in each time, it enters the callback function.
   delay(50);
    obj.setValue(value1);
	if(value1 < 100) value1++;
}
//Callback function of progress bar2
void barCallback2(DFRobot_UI:: sBar_t &obj){
    //Enable the progress bar plus 1 in each time, it enters the callback function.
   delay(50);
    delay(50);
    obj.setValue(value2);
	if(value2 < 100) value2++;
	
}
//Callback function of progress bar3
void barCallback3(DFRobot_UI:: sBar_t &obj){
    //Enable the progress bar plus 1 in each time, it enters the callback function.
   delay(50);
    delay(50);
    obj.setValue(value3);
	if(value3 < 100) value3++;
}
void setup()
{
  
  Serial.begin(9600);
  //ui初始化
  ui.begin();
  ui.setTheme(DFRobot_UI::MODERN);

  //在屏幕上显示字符串
  ui.drawString(/*x=*/33,/*y=*/screen.height()/5*4,"Page of loading",COLOR_RGB565_WHITE,ui.bgColor,/*fontsize =*/2,/*Invert=*/0);
  //创建一个进度条控件
  DFRobot_UI::sBar_t &bar1 = ui.creatBar();
  /**用户自定义进度条参数*/
  bar1.setStyle(DFRobot_UI::COLUMN);
  bar1.fgColor = COLOR_RGB565_GREEN;
  bar1.setCallback(barCallback1);
  ui.draw(&bar1,/*x=*/33,/*y=*/screen.height()/5*3);
  
  DFRobot_UI::sBar_t &bar2 = ui.creatBar();
  /**用户自定义进度条参数*/
  bar2.setStyle(DFRobot_UI::CIRCULAR);
  bar2.setCallback(barCallback2);
  ui.draw(&bar2,/*x=*/120,/*y=*/screen.height()/5*2);

  DFRobot_UI::sBar_t &bar3 = ui.creatBar();
  /**用户自定义进度条参数*/
  bar3.fgColor = COLOR_RGB565_BLUE;
  bar3.setStyle(DFRobot_UI::BAR);
  bar3.setCallback(barCallback3);
  ui.draw(&bar3,/*x=*/(screen.width()-bar3.width)/2,/*y=*/screen.height()/10);
}


void loop()
{
  //Refresh 
  ui.refresh();
}

结果

兼容性测试

疑难解答

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