【雕爷学编程】Arduino动手做(153)---2.4寸TFT液晶触摸屏模块4
37款传感器与执行器的提法,在网络上广泛流传,其实Arduino能够兼容的传感器模块肯定是不止这37种的。鉴于本人手头积累了一些传感器和执行器模块,依照实践出真知(一定要动手做)的理念,以学习和交流为目的,这里准备逐一动手尝试系列实验,不管成功(程序走通)与否,都会记录下来—小小的进步或是搞不掂的问题,希望能够抛砖引玉。
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 可直插UNO R3 Mega2560开发板
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 可直插UNO R3 Mega2560开发板
项目之六:逐行显示不同字号的英文字符串
实验开源代码:
/* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏 项目之六:逐行显示不同字号的英文字符串 模块直插,引脚用法如下: LCD_CS LCD_CD LCD_WR LCD_RD LCD_RST SD_SS SD_DI SD_DO SD_SCK Arduino Uno A3 A2 A1 A0 A4 10 11 12 13 LCD_D0 LCD_D1 LCD_D2 LCD_D3 LCD_D4 LCD_D5 LCD_D6 LCD_D7 Arduino Uno 8 9 2 3 4 5 6 7 */ #include <LCDWIKI_GUI.h> //导入核心图形库 #include <LCDWIKI_KBV.h> //导入特定硬件库 //如果 IC 模型已知或模块不可读,则可以使用此构造函数 LCDWIKI_KBV mylcd(ILI9341, A3, A2, A1, A0, A4); //模型、CS、CD、WR、RD、重置 //如果 IC 模型未知且模块可读,则可以使用此构造函数 //LCDWIKI_KBV my_lcd(240,320,A3,A2,A1,A0,A4);//屏幕宽度、高度、cs、cd、wr、rd、重置 //定义一些颜色值 #define BLACK 0x0000 #define BLUE 0x001F #define RED 0xF800 #define GREEN 0x07E0 #define CYAN 0x07FF #define MAGENTA 0xF81F #define YELLOW 0xFFE0 #define WHITE 0xFFFF void setup() { Serial.begin(9600); mylcd.Init_LCD(); Serial.println(mylcd.Read_ID(), HEX); mylcd.Fill_Screen(BLACK); } void loop() { mylcd.Set_Text_Mode(0); //显示 1 次字符串 mylcd.Fill_Screen(0x0000); mylcd.Set_Text_colour(RED); mylcd.Set_Text_Back_colour(BLACK); mylcd.Set_Text_Size(1); mylcd.Print_String("Hello World!", 0, 0); mylcd.Print_Number_Float(01234.56789, 2, 0, 8, '.', 0, ' '); mylcd.Print_Number_Int(0xDEADBEF, 0, 16, 0, ' ', 16); //mylcd.Print_String("DEADBEF", 0, 16); delay(166); //显示 2 次字符串 mylcd.Set_Text_colour(GREEN); mylcd.Set_Text_Size(2); mylcd.Print_String("Hello World!", 0, 40); mylcd.Print_Number_Float(01234.56789, 2, 0, 56, '.', 0, ' '); mylcd.Print_Number_Int(0xDEADBEF, 0, 72, 0, ' ', 16); //mylcd.Print_String("DEADBEEF", 0, 72); delay(166); //显示 3 次字符串 mylcd.Set_Text_colour(BLUE); mylcd.Set_Text_Size(3); mylcd.Print_String("Hello World!", 0, 104); mylcd.Print_Number_Float(01234.56789, 2, 0, 128, '.', 0, ' '); mylcd.Print_Number_Int(0xDEADBEF, 0, 152, 0, ' ', 16); // mylcd.Print_String("DEADBEEF", 0, 152); delay(166); //显示 4 次字符串 mylcd.Set_Text_colour(WHITE); mylcd.Set_Text_Size(4); mylcd.Print_String("Hello!", 0, 192); delay(166); //显示 5 次字符串 mylcd.Set_Text_colour(YELLOW); mylcd.Set_Text_Size(5); mylcd.Print_String("Hello!", 0, 224); delay(166); //显示 6 次字符串 mylcd.Set_Text_colour(RED); mylcd.Set_Text_Size(6); mylcd.Print_String("Hello!", 0, 266); delay(666); }
实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏
项目之六:逐行显示不同字号的英文字符串
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏
项目之七:诊断接触针
实验开源代码:
/* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏 项目之七:诊断接触针 模块直插,引脚用法如下: LCD_CS LCD_CD LCD_WR LCD_RD LCD_RST SD_SS SD_DI SD_DO SD_SCK Arduino Uno A3 A2 A1 A0 A4 10 11 12 13 LCD_D0 LCD_D1 LCD_D2 LCD_D3 LCD_D4 LCD_D5 LCD_D6 LCD_D7 Arduino Uno 8 9 2 3 4 5 6 7 */ void showpins(int A, int D, int value, const char *msg) { Serial.print(msg); Serial.print(" (A" + String(A - A0) + ", D" + String(D) + ") = "); Serial.println(value); } void setup() { int i, j, value, Apins[2], Dpins[2], Values[2], found = 0; Serial.begin(9600); Serial.println("Making all control and bus pins INPUT_PULLUP"); Serial.println("Typical 30k Analog pullup with corresponding pin"); Serial.println("would read low when digital is written LOW"); Serial.println("e.g. reads ~25 for 300R X direction"); Serial.println("e.g. reads ~30 for 500R Y direction"); Serial.println(""); for (i = A0; i < A5; i++) pinMode(i, INPUT_PULLUP); for (i = 2; i < 10; i++) pinMode(i, INPUT_PULLUP); for (i = A0; i < A4; i++) { for (j = 5; j < 10; j++) { pinMode(j, OUTPUT); digitalWrite(j, LOW); value = analogRead(i); // 忽略初读 value = analogRead(i); if (value < 100) { showpins(i, j, value, "Testing :"); if (found < 2) { Apins[found] = i; Dpins[found] = j; Values[found] = value; found++; } } pinMode(j, INPUT_PULLUP); } } if (found == 2) { Serial.println("Diagnosing as:-"); for (i = 0; i < 2; i++) { showpins(Apins[i], Dpins[i], Values[i], (Values[i] < Values[!i]) ? "XM,XP: " : "YP,YM: "); } } } void loop() { }
实验串口返回情况
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏
项目之八:纵向流动显示字符串
实验开源代码:
/* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏 项目之八:纵向流动显示字符串 模块直插,引脚用法如下: LCD_CS LCD_CD LCD_WR LCD_RD LCD_RST SD_SS SD_DI SD_DO SD_SCK Arduino Uno A3 A2 A1 A0 A4 10 11 12 13 LCD_D0 LCD_D1 LCD_D2 LCD_D3 LCD_D4 LCD_D5 LCD_D6 LCD_D7 Arduino Uno 8 9 2 3 4 5 6 7 */ #include <Adafruit_GFX.h> // 导入特定硬件的库 #include <MCUFRIEND_kbv.h> MCUFRIEND_kbv tft; #define BLACK 0x0000 #define BLUE 0x001F #define RED 0xF800 #define GREEN 0x07E0 #define CYAN 0x07FF #define MAGENTA 0xF81F #define YELLOW 0xFFE0 #define WHITE 0xFFFF // 在行号中工作。 以 16 为单位的字体高度 int16_t ht = 16, top = 3, line, lines = 15, scroll; void setup() { tft.reset(); uint16_t id = tft.readID(); tft.begin(id); tft.setRotation(0); //肖像 tft.fillScreen(BLACK); tft.setTextColor(WHITE, BLACK); tft.setTextSize(2); // 系统字体为 8 像素。 ht = 8*2=16 tft.setCursor(100, 0); tft.print("ID = 0x"); tft.println(id, HEX); if (id == 0x9320 || id == 0x9325 || id == 0xB509) { top = 0; // 这些控制器滚动全屏 lines = tft.height() / ht; // 我们处于纵向模式 } if (id == 0x7783) { tft.println("can NOT scroll"); while (1); // 休止 } tft.setCursor(0, 0); for (line = 1; line < 21; line++) tft.println(String(line) + ": "); } void loop(){ tft.setCursor(0, (scroll + top) * ht); if (++scroll >= lines) scroll = 0; tft.vertScroll(top * ht, lines * ht, (scroll) * ht); tft.println(String(line) + ": [" + String(scroll) + "] "); delay(100); line++; }
Arduino实验场景图
https://imagemc.dfrobot.com.cn/data/attachment/forum/202106/28/125955hrd1ln1n7xrcmg7g.gif
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏
项目之九:动态背景四面循环显示字符串
Arduino实验开源代码
/* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏 项目之九:动态背景四面循环显示字符串 模块直插,引脚用法如下: LCD_CS LCD_CD LCD_WR LCD_RD LCD_RST SD_SS SD_DI SD_DO SD_SCK Arduino Uno A3 A2 A1 A0 A4 10 11 12 13 LCD_D0 LCD_D1 LCD_D2 LCD_D3 LCD_D4 LCD_D5 LCD_D6 LCD_D7 Arduino Uno 8 9 2 3 4 5 6 7 */ #include <Adafruit_GFX.h> // 导入基本图形库 #include <MCUFRIEND_kbv.h> MCUFRIEND_kbv tft; void setup(){ Serial.begin(9600); tft.reset(); uint16_t identifier = tft.readID(); Serial.print("ID = 0x"); Serial.println(identifier, HEX); if (identifier == 0xEFEF) identifier = 0x9486; tft.begin(identifier); // tft fill Screen (BLACK); } char *msg[] = { "PORTRAIT", "LANDSCAPE", "PORTRAIT_REV", "LANDSCAPE_REV" }; uint8_t aspect; void loop(){ uint16_t x = 50, y = 100; tft.setRotation(aspect); tft.fillScreen(0x0000); tft.setCursor(0, 0); tft.setTextSize(2); tft.println(msg[aspect]); tft.setCursor(x, y); tft.println("[x=" + String(x) + ",y=" + String(y) + "]"); delay(800); tft.println("INVERT ON"); tft.invertDisplay(true); delay(250); tft.invertDisplay(false); tft.println("INVERT OFF"); delay(250); if (++aspect >= 4) aspect = 0; }
Arduino实验场景图
https://mc.dfrobot.com.cn/data/attachment/forum/202106/28/135424yzt2775hhjbth8mf.gif
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏
项目之十:逐行显示不同字号的英文字符串
Arduino实验开源代码
/* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏 项目之十:逐行显示不同字号的英文字符串 模块直插,引脚用法如下: LCD_CS LCD_CD LCD_WR LCD_RD LCD_RST SD_SS SD_DI SD_DO SD_SCK Arduino Uno A3 A2 A1 A0 A4 10 11 12 13 LCD_D0 LCD_D1 LCD_D2 LCD_D3 LCD_D4 LCD_D5 LCD_D6 LCD_D7 Arduino Uno 8 9 2 3 4 5 6 7 */ #include <Adafruit_GFX.h> // 导入核心图形库 #include <MCUFRIEND_kbv.h> // 导入特定硬件库 MCUFRIEND_kbv tft; #include <Fonts/FreeSans9pt7b.h> //导入字体库 #include <Fonts/FreeSans12pt7b.h> #include <Fonts/FreeSerif12pt7b.h> #include <FreeDefaultFonts.h> #define BLACK 0x0000 #define RED 0xF800 #define GREEN 0x07E0 #define WHITE 0xFFFF #define GREY 0x8410 void setup(void){ Serial.begin(9600); uint16_t ID = tft.readID(); Serial.println("Example: Font_simple"); Serial.print("found ID = 0x"); Serial.println(ID, HEX); Serial.println("The display font is ready OK!"); if (ID == 0xD3D3) ID = 0x9481; //如果只写显示,则强制 ID tft.begin(ID); tft.setRotation(0); } void loop(void){ tft.fillScreen(BLACK); showmsgXY(20, 10, 1, NULL, "System x1"); showmsgXY(20, 24, 2, NULL, "System x2"); showmsgXY(20, 60, 1, &FreeSans9pt7b, "FreeSans9pt7b"); showmsgXY(20, 80, 1, &FreeSans12pt7b, "FreeSans12pt7b"); showmsgXY(20, 100, 1, &FreeSerif12pt7b, "FreeSerif12pt7b"); showmsgXY(20, 120, 1, &FreeSmallFont, "FreeSmallFont"); showmsgXY(5, 180, 1, &FreeSevenSegNumFont, "01234"); showmsgXY(5, 190, 1, NULL, "System Font is drawn from topline"); tft.setTextColor(RED, GREY); tft.setTextSize(2); tft.setCursor(0, 220); tft.print("7x5 can overwrite"); delay(50); tft.setCursor(0, 220); tft.print("if background set"); delay(50); showmsgXY(5, 260, 1, &FreeSans9pt7b, "Free Fonts from baseline"); delay(50); showmsgXY(5, 285, 1, &FreeSans9pt7b, "Free Fonts transparent"); delay(50); showmsgXY(5, 310, 1, &FreeSans9pt7b, "erase backgnd with fillRect()"); delay(300); } void showmsgXY(int x, int y, int sz, const GFXfont *f, const char *msg) { int16_t x1, y1; uint16_t wid, ht; tft.drawFastHLine(0, y, tft.width(), WHITE); tft.setFont(f); tft.setCursor(x, y); tft.setTextColor(GREEN); tft.setTextSize(sz); tft.print(msg); delay(500); }
实验串口返回情况
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏
项目之十一:四方向满屏动态字符串
实验开源代码:
/* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏 项目之十一:四方向满屏动态字符串 模块直插,引脚用法如下: LCD_CS LCD_CD LCD_WR LCD_RD LCD_RST SD_SS SD_DI SD_DO SD_SCK Arduino Uno A3 A2 A1 A0 A4 10 11 12 13 LCD_D0 LCD_D1 LCD_D2 LCD_D3 LCD_D4 LCD_D5 LCD_D6 LCD_D7 Arduino Uno 8 9 2 3 4 5 6 7 */ #define LCD_CS A3 // Chip Select goes to Analog 3 #define LCD_CD A2 // Command/Data goes to Analog 2 #define LCD_WR A1 // LCD Write goes to Analog 1 #define LCD_RD A0 // LCD Read goes to Analog 0 #define LCD_RESET A4 // Can alternately just connect to Arduino's reset pin #include <Adafruit_GFX.h> // Hardware-specific library #include <MCUFRIEND_kbv.h> MCUFRIEND_kbv tft; //#include <Adafruit_TFTLCD.h> // Hardware-specific library //Adafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET); //Adafruit_TFTLCD tft; //为一些常见的 16 位颜色值分配可读的名称 #define BLACK 0x0000 #define BLUE 0x001F #define RED 0xF800 #define GREEN 0x07E0 #define CYAN 0x07FF #define MAGENTA 0xF81F #define YELLOW 0xFFE0 #define WHITE 0xFFFF void setup(void); void loop(void); uint16_t g_identifier; void setup(void) { tft.reset(); g_identifier = tft.readID(); Serial.begin(9600); Serial.print("readID = 0x"); Serial.println(g_identifier, HEX); if (g_identifier == 0xFFFF) g_identifier = 0x9341; if (g_identifier == 0) { Serial.println("Unknown ID"); while (1); } tft.begin(g_identifier); tft.setRotation(0); } uint16_t colors[] = { BLACK, BLUE }; void colordump(uint16_t x, uint16_t y) { uint16_t pixel, pixels[32]; char i, j, buf[20], dirty; uint8_t wid = (tft.width() - 9 * 6) / (5 * 6), ht = (tft.height() / 8) - 1; tft.setTextColor(WHITE); tft.setTextSize(1); for (j = 0; j < ht; j++) { sprintf(buf, "%3d,%3d:", x, y + j); tft.print(buf); dirty = 1; for (i = 0; i < wid; i++) { #if 1 && defined(MCUFRIEND_KBV_H_) if (dirty) tft.readGRAM(x, y + j, pixels, wid, 1); dirty = 0; pixel = pixels[i]; #else pixel = tft.readPixel(x + i, y + j); #endif tft.print(" "); if (pixel == WHITE) tft.setTextColor(GREEN); sprintf(buf, "%04X", pixel); tft.print(buf); tft.setTextColor(WHITE); } tft.println(); } } uint16_t bgr(uint16_t color) { return ((color & 0xF800) >> 11) | (color & 0x7E0) | (color & 0x1F) << 11; } void duffcolor(uint16_t color) { uint16_t pixel, x, y; char done, buf[20]; uint16_t BGR = bgr(color); for (done = 0, y = 0; y < 320 && !done; y++) { for (x = 0; x < 240; x++) { //pixel = readxy(x, y); pixel = tft.readPixel(x, y); if (pixel != BGR) { done = 1; sprintf(buf, "0x%04X @ %d, %d", pixel, x, y); tft.println(buf); break; } } } } uint8_t aspect; char *aspectname[] = { "PORTRAIT", "LANDSCAPE", "PORTRAIT_REV", "LANDSCAPE_REV" }; void loop(void) { uint16_t iter, color; char buf[80]; aspect = (aspect + 1) & 3; tft.setRotation(aspect); for (iter = 0; iter < sizeof(colors) / sizeof(uint16_t); iter++) { color = colors[iter]; tft.fillScreen(color); tft.setTextColor(WHITE); tft.setTextSize(1); tft.setCursor(0, 0); sprintf(buf, "ID=0x%04X Background=%04X %s", tft.readID(), color, aspectname[aspect]); tft.println(buf); colordump(6 * 6, 0); //duffcolor(color); delay(400); } }
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百五十三:2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏
项目之十一:四方向满屏动态字符串
实验场景图