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3.5_480x320_TFT_LCD_With_Cap_Touch_SKU_DFR0669

](https://www.dfrobot.com.cn/goods-2877.html "3.5_480x320_TFT_LCD_With_Cap_Touch(DFR0669)") ## 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 ![DFR0669-引脚图](https://img.dfrobot.com.cn/wiki/none/e336c5ccad8e18a7c87a3c3b325603aa) | **标号** | **名称** | **功能描述** | -----------| ------------ | ------------ | | 1 | VCC | 电源正极 | 2 | GND |电源负极 | 3 | SCLK |时钟 | 4 | MOSI |数据（主机发送从机接收） | 5 | MISO |数据（主机接收从机发送 | 6 | CS |屏幕片选 | 7 | RES |复位 | 8 | DC |数据/命令 | 9 | BL |背光。背光设定了默认值，用户不用连接背光引脚也可点亮；此外，连接背光引脚，输入高电平（1）是将背光亮度调到最大，输入低电平（0）是关闭背光 | 10 | SCL |触摸时钟 | 11 | SDA |触摸数据 | 12 | INT |触摸中断 | 12 | SDCS |SD卡片选 ## 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](https://www.arduino.cc/en/Main/Software)Arduino IDE - [DFRobot_GDL库文件](https://gitee.com/dfrobot/DFRobot_GDL) - 如何安装库文件，[点击链接](https://mc.dfrobot.com.cn/thread-1854-1-1.html) - DFRobot_GDL API接口函数，[点击链接了解详情](https://github.com/DFRobot/DFRobot_GDL/wiki/%E4%B8%AD%E6%96%87-WIKI) 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 ![Arduino-连接图](https://img.dfrobot.com.cn/wiki/none/b6d65da6a06ce0e529a8fe399219913a.png) ### 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 ![DFR0665尺寸图](https://img.dfrobot.com.cn/wiki/none/5b24f14f130eeb86ee03349f8f8e51ee) ### 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。 ``` arduino /*! * @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 = 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。 ``` arduino /*! * @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 | **MCU** | **测试通过** | **测试失败** | **未测试** | **特别关注** | -----------| ------------ | ------------ | ------------ | ------------ | | FireBeetle-ESP32 | √ | | | | | FireBeetle-ESP8266 | √ | | | | | Arduino Uno | √ | | | | | Leonardo |√ | | | | | Mega2560 | √ | | | | | Arduino M0 | √ | | | | | ## 疑难解答更多问题及有趣的应用，可以 [**访问论坛**](http://www.dfrobot.com.cn/community/forum.php) 进行查阅或发帖！ ## 更多 - [原理图](https://img.dfrobot.com.cn/wiki/5d6782b68b3b1513c2f4da54/4c9f7776ffff82de1a22a29a88523135.pdf "3.5” 480x320 TFT LCD with Cap-Schematic.pdf") - [尺寸图](https://img.dfrobot.com.cn/wiki/5d6782b68b3b1513c2f4da54/2413483014bd1261d600f61bcbb2ef41.pdf "3.5” 480x320 TFT LCD with Cap-Dimensions.pdf") - [芯片手册](https://img.dfrobot.com.cn/wiki/5d6782b68b3b1513c2f4da54/39804c7fa89fc4a1c9e474faeee7f751.pdf "电容触控芯片GT911 Datasheet_20130108.pdf") - [3D模型](https://img.dfrobot.com.cn/wiki/62b2fb5caa613609f271523c/197d599ffd6d4638fb13b23afeea44ec.rar "3D模型") ![](http://imgtest.dfrobot.com.cn/DFRobotCnWikiImage/shopping_car.png "File:shopping_car.png") [DFRobot商城购买链接](https://www.dfrobot.com.cn/goods-2877.html)

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