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【Arduino】168种传感器模块系列实验（资料代码+仿真编程+图形编程） 实验一百六十五：2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏 项目之四：KBV图形与字符串显示的综合测试 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）
- 实验一百六十五：2.4寸TFT液晶触摸屏 彩屏模块 TFT-LCD 高清真彩显示屏
- 项目之四：KBV图形与字符串显示的综合测试
- 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 // 片选进入模拟A3
- #define LCD_CD A2 // 命令/数据进入模拟A2
- #define LCD_WR A1 // LCD 写入到模拟A1
- #define LCD_RD A0 // LCD 读取进入模拟A0
- #define LCD_RESET A4 //也可以只连接到 Arduino 的复位引脚
-
- #include <SPI.h>
- #include "Adafruit_GFX.h"// 导入特定硬件的库
- #include <MCUFRIEND_kbv.h>
- MCUFRIEND_kbv tft;
- //#include <Adafruit_TFTLCD.h>
- //Adafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);
-
- // 为一些常见的 16 位颜色值分配人类可读的名称
- #define BLACK 0x0000
- #define BLUE 0x001F
- #define RED 0xF800
- #define GREEN 0x07E0
- #define CYAN 0x07FF
- #define MAGENTA 0xF81F
- #define YELLOW 0xFFE0
- #define WHITE 0xFFFF
-
- #ifndef min
- #define min(a, b) (((a) < (b)) ? (a) : (b))
- #endif
-
- void setup(void);
- void loop(void);
- unsigned long testFillScreen();
- unsigned long testText();
- unsigned long testLines(uint16_t color);
- unsigned long testFastLines(uint16_t color1, uint16_t color2);
- unsigned long testRects(uint16_t color);
- unsigned long testFilledRects(uint16_t color1, uint16_t color2);
- unsigned long testFilledCircles(uint8_t radius, uint16_t color);
- unsigned long testCircles(uint8_t radius, uint16_t color);
- unsigned long testTriangles();
- unsigned long testFilledTriangles();
- unsigned long testRoundRects();
- unsigned long testFilledRoundRects();
- void progmemPrint(const char *str);
- void progmemPrintln(const char *str);
-
- void runtests(void);
-
- uint16_t g_identifier;
-
- extern const uint8_t hanzi[];
- void showhanzi(unsigned int x, unsigned int y, unsigned char index)
- {
- uint8_t i, j, c, first = 1;
- uint8_t *temp = (uint8_t*)hanzi;
- uint16_t color;
- tft.setAddrWindow(x, y, x + 31, y + 31); //设置区域
- temp += index * 128;
- for (j = 0; j < 128; j++)
- {
- c = pgm_read_byte(temp);
- for (i = 0; i < 8; i++)
- {
- if ((c & (1 << i)) != 0)
- {
- color = RED;
- }
- else
- {
- color = BLACK;
- }
- tft.pushColors(&color, 1, first);
- first = 0;
- }
- temp++;
- }
- }
-
- void setup(void) {
- Serial.begin(9600);
- uint32_t when = millis();
- // while (!Serial) ; // 挂起Leonardo，直到您连接串行
- if (!Serial) delay(5000); //给Leonardo一些时间
- Serial.println("Serial took " + String((millis() - when)) + "ms to start");
- // tft.reset(); //硬件复位
- uint16_t ID = tft.readID();
- Serial.print("ID = 0x");
- Serial.println(ID, HEX);
- Serial.print("Ready ok!");
- if (ID == 0xD3D3) ID = 0x9481; //只写扩展
- // ID = 0x9329; // 强制标识
- tft.begin(ID);
- }
-
- #if defined(MCUFRIEND_KBV_H_)
- uint16_t scrollbuf[320]; // 我最大的屏幕是 320x480
- #define READGRAM(x, y, buf, w, h) tft.readGRAM(x, y, buf, w, h)
- #else
- uint16_t scrollbuf[320]; // Adafruit 只能处理 240x320
- // Adafruit 可以一次读取一个像素块
- int16_t READGRAM(int16_t x, int16_t y, uint16_t *block, int16_t w, int16_t h)
- {
- uint16_t *p;
- for (int row = 0; row < h; row++) {
- p = block + row * w;
- for (int col = 0; col < w; col++) {
- *p++ = tft.readPixel(x + col, y + row);
- }
- }
- }
- #endif
-
- void windowScroll(int16_t x, int16_t y, int16_t wid, int16_t ht, int16_t dx, int16_t dy, uint16_t *buf)
- {
- if (dx) for (int16_t row = 0; row < ht; row++) {
- READGRAM(x, y + row, buf, wid, 1);
- tft.setAddrWindow(x, y + row, x + wid - 1, y + row);
- tft.pushColors(buf + dx, wid - dx, 1);
- tft.pushColors(buf + 0, dx, 0);
- }
- if (dy) for (int16_t col = 0; col < wid; col++) {
- READGRAM(x + col, y, buf, 1, ht);
- tft.setAddrWindow(x + col, y, x + col, y + ht - 1);
- tft.pushColors(buf + dy, ht - dy, 1);
- tft.pushColors(buf + 0, dy, 0);
- }
- }
-
- void printmsg(int row, const char *msg)
- {
- tft.setTextColor(YELLOW, BLACK);
- tft.setCursor(0, row);
- tft.println(msg);
- }
-
- void loop(void) {
- uint8_t aspect;
- uint16_t pixel;
- const char *aspectname[] = {
- "PORTRAIT", "LANDSCAPE", "PORTRAIT_REV", "LANDSCAPE_REV"
- };
- const char *colorname[] = { "BLUE", "GREEN", "RED", "GRAY" };
- uint16_t colormask[] = { 0x001F, 0x07E0, 0xF800, 0xFFFF };
- uint16_t dx, rgb, n, wid, ht, msglin;
- tft.setRotation(0);
- runtests();
- delay(2000);
- if (tft.height() > 64) {
- for (uint8_t cnt = 0; cnt < 4; cnt++) {
- aspect = (cnt + 0) & 3;
- tft.setRotation(aspect);
- wid = tft.width();
- ht = tft.height();
- msglin = (ht > 160) ? 200 : 112;
- testText();
- dx = wid / 32;
- for (n = 0; n < 32; n++) {
- rgb = n * 8;
- rgb = tft.color565(rgb, rgb, rgb);
- tft.fillRect(n * dx, 48, dx, 63, rgb & colormask[aspect]);
- }
- tft.drawRect(0, 48 + 63, wid, 1, WHITE);
- tft.setTextSize(2);
- tft.setTextColor(colormask[aspect], BLACK);
- tft.setCursor(0, 72);
- tft.print(colorname[aspect]);
- tft.setTextColor(WHITE);
- tft.println(" COLOR GRADES");
- tft.setTextColor(WHITE, BLACK);
- printmsg(184, aspectname[aspect]);
- delay(1000);
- tft.drawPixel(0, 0, YELLOW);
- pixel = tft.readPixel(0, 0);
- tft.setTextSize((ht > 160) ? 2 : 1); //对于消息
- #if defined(MCUFRIEND_KBV_H_)
- #if 1
- extern const uint8_t penguin[];
- tft.setAddrWindow(wid - 40 - 40, 20 + 0, wid - 1 - 40, 20 + 39);
- tft.pushColors(penguin, 1600, 1);
- #elif 1
- extern const uint8_t wifi_full[];
- tft.setAddrWindow(wid - 40 - 40, 20 + 0, wid - 40 - 40 + 31, 20 + 31);
- tft.pushColors(wifi_full, 1024, 1, true);
- #elif 1
- extern const uint8_t icon_40x40[];
- tft.setAddrWindow(wid - 40 - 40, 20 + 0, wid - 1 - 40, 20 + 39);
- tft.pushColors(icon_40x40, 1600, 1);
- #endif
- tft.setAddrWindow(0, 0, wid - 1, ht - 1);
- if (aspect & 1) tft.drawRect(wid - 1, 0, 1, ht, WHITE);
- else tft.drawRect(0, ht - 1, wid, 1, WHITE);
- printmsg(msglin, "VERTICAL SCROLL UP");
- uint16_t maxscroll;
- if (tft.getRotation() & 1) maxscroll = wid;
- else maxscroll = ht;
- for (uint16_t i = 1; i <= maxscroll; i++) {
- tft.vertScroll(0, maxscroll, i);
- delay(10);
- }
- delay(1000);
- printmsg(msglin, "VERTICAL SCROLL DN");
- for (uint16_t i = 1; i <= maxscroll; i++) {
- tft.vertScroll(0, maxscroll, 0 - (int16_t)i);
- delay(10);
- }
- tft.vertScroll(0, maxscroll, 0);
- printmsg(msglin, "SCROLL DISABLED ");
-
- delay(1000);
- if ((aspect & 1) == 0) { //Portrait
- tft.setTextColor(BLUE, BLACK);
- printmsg(msglin, "ONLY THE COLOR BAND");
- for (uint16_t i = 1; i <= 64; i++) {
- tft.vertScroll(48, 64, i);
- delay(20);
- }
- delay(1000);
- }
- #endif
- tft.setTextColor(YELLOW, BLACK);
- if (pixel == YELLOW) {
- printmsg(msglin, "SOFTWARE SCROLL ");
- #if 0
- // 块的对角线卷轴
- for (int16_t i = 45, dx = 2, dy = 1; i > 0; i -= dx) {
- windowScroll(24, 8, 90, 40, dx, dy, scrollbuf);
- }
- #else
- // 块的普通水平滚动
- n = (wid > 320) ? 320 : wid;
- for (int16_t i = n, dx = 4, dy = 0; i > 0; i -= dx) {
- windowScroll(0, 200, n, 16, dx, dy, scrollbuf);
- }
- #endif
- }
- else if (pixel == CYAN)
- tft.println("readPixel() reads as BGR");
- else if ((pixel & 0xF8F8) == 0xF8F8)
- tft.println("readPixel() should be 24-bit");
- else {
- tft.print("readPixel() reads 0x");
- tft.println(pixel, HEX);
- }
- delay(2000);
- }
- }
- printmsg(msglin, "INVERT DISPLAY ");
- tft.invertDisplay(true);
- delay(1000);
- tft.invertDisplay(false);
- }
-
- typedef struct {
- PGM_P msg;
- uint32_t ms;
- } TEST;
- TEST result[12];
-
- #define RUNTEST(n, str, test) { result[n].msg = PSTR(str); result[n].ms = test; delay(500); }
-
- void runtests(void)
- {
- uint8_t i, len = 24, cnt;
- uint32_t total;
- RUNTEST(0, "FillScreen ", testFillScreen());
- RUNTEST(1, "Text ", testText());
- RUNTEST(2, "Lines ", testLines(CYAN));
- RUNTEST(3, "Horiz/Vert Lines ", testFastLines(RED, BLUE));
- RUNTEST(4, "Rectangles (outline) ", testRects(GREEN));
- RUNTEST(5, "Rectangles (filled) ", testFilledRects(YELLOW, MAGENTA));
- RUNTEST(6, "Circles (filled) ", testFilledCircles(10, MAGENTA));
- RUNTEST(7, "Circles (outline) ", testCircles(10, WHITE));
- RUNTEST(8, "Triangles (outline) ", testTriangles());
- RUNTEST(9, "Triangles (filled) ", testFilledTriangles());
- RUNTEST(10, "Rounded rects (outline) ", testRoundRects());
- RUNTEST(11, "Rounded rects (filled) ", testFilledRoundRects());
-
- tft.fillScreen(BLACK);
- tft.setTextColor(GREEN);
- tft.setCursor(0, 0);
- uint16_t wid = tft.width();
- if (wid > 176) {
- tft.setTextSize(2);
- #if defined(MCUFRIEND_KBV_H_)
- tft.print("MCUFRIEND ");
- #if MCUFRIEND_KBV_H_ != 0
- tft.print(0.01 * MCUFRIEND_KBV_H_, 2);
- #else
- tft.print("for");
- #endif
- tft.println(" UNO");
- #else
- tft.println("Adafruit-Style Tests");
- #endif
- } else len = wid / 6 - 8;
- tft.setTextSize(1);
- total = 0;
- for (i = 0; i < 12; i++) {
- PGM_P str = result[i].msg;
- char c;
- if (len > 24) {
- if (i < 10) tft.print(" ");
- tft.print(i);
- tft.print(": ");
- }
- uint8_t cnt = len;
- while ((c = pgm_read_byte(str++)) && cnt--) tft.print(c);
- tft.print(" ");
- tft.println(result[i].ms);
- total += result[i].ms;
- }
- tft.setTextSize(2);
- tft.print("Total:");
- tft.print(0.000001 * total);
- tft.println("sec");
- g_identifier = tft.readID();
- tft.print("ID: 0x");
- tft.println(tft.readID(), HEX);
- // tft.print("Reg(00):0x");
- // tft.println(tft.readReg(0x00), HEX);
- tft.print("F_CPU:");
- tft.print(0.000001 * F_CPU);
- #if defined(__OPTIMIZE_SIZE__)
- tft.println("MHz -Os");
- #else
- tft.println("MHz");
- #endif
-
- delay(1000);
- }
-
- //标准 Adafruit 测试。 将调整到屏幕大小
-
- unsigned long testFillScreen() {
- unsigned long start = micros();
- tft.fillScreen(BLACK);
- tft.fillScreen(RED);
- tft.fillScreen(GREEN);
- tft.fillScreen(BLUE);
- tft.fillScreen(BLACK);
- return micros() - start;
- }
-
- unsigned long testText() {
- unsigned long start;
- tft.fillScreen(BLACK);
- start = micros();
- tft.setCursor(0, 0);
- tft.setTextColor(WHITE); tft.setTextSize(1);
- tft.println("Hello World!");
- tft.setTextColor(YELLOW); tft.setTextSize(2);
- tft.println(123.45);
- tft.setTextColor(RED); tft.setTextSize(3);
- tft.println(0xDEADBEEF, HEX);
- tft.println();
- tft.setTextColor(GREEN);
- tft.setTextSize(5);
- tft.println("Groop");
- tft.setTextSize(2);
- tft.println("I implore thee,");
- tft.setTextSize(1);
- tft.println("my foonting turlingdromes.");
- tft.println("And hooptiously drangle me");
- tft.println("with crinkly bindlewurdles,");
- tft.println("Or I will rend thee");
- tft.println("in the gobberwarts");
- tft.println("with my blurglecruncheon,");
- tft.println("see if I don't!");
- return micros() - start;
- }
-
- unsigned long testLines(uint16_t color) {
- unsigned long start, t;
- int x1, y1, x2, y2,
- w = tft.width(),
- h = tft.height();
-
- tft.fillScreen(BLACK);
-
- x1 = y1 = 0;
- y2 = h - 1;
- start = micros();
- for (x2 = 0; x2 < w; x2 += 6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = w - 1;
- for (y2 = 0; y2 < h; y2 += 6) tft.drawLine(x1, y1, x2, y2, color);
- t = micros() - start; // fillScreen doesn't count against timing
-
- tft.fillScreen(BLACK);
-
- x1 = w - 1;
- y1 = 0;
- y2 = h - 1;
- start = micros();
- for (x2 = 0; x2 < w; x2 += 6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = 0;
- for (y2 = 0; y2 < h; y2 += 6) tft.drawLine(x1, y1, x2, y2, color);
- t += micros() - start;
-
- tft.fillScreen(BLACK);
-
- x1 = 0;
- y1 = h - 1;
- y2 = 0;
- start = micros();
- for (x2 = 0; x2 < w; x2 += 6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = w - 1;
- for (y2 = 0; y2 < h; y2 += 6) tft.drawLine(x1, y1, x2, y2, color);
- t += micros() - start;
-
- tft.fillScreen(BLACK);
-
- x1 = w - 1;
- y1 = h - 1;
- y2 = 0;
- start = micros();
- for (x2 = 0; x2 < w; x2 += 6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = 0;
- for (y2 = 0; y2 < h; y2 += 6) tft.drawLine(x1, y1, x2, y2, color);
-
- return micros() - start;
- }
-
- unsigned long testFastLines(uint16_t color1, uint16_t color2) {
- unsigned long start;
- int x, y, w = tft.width(), h = tft.height();
-
- tft.fillScreen(BLACK);
- start = micros();
- for (y = 0; y < h; y += 5) tft.drawFastHLine(0, y, w, color1);
- for (x = 0; x < w; x += 5) tft.drawFastVLine(x, 0, h, color2);
-
- return micros() - start;
- }
-
- unsigned long testRects(uint16_t color) {
- unsigned long start;
- int n, i, i2,
- cx = tft.width() / 2,
- cy = tft.height() / 2;
-
- tft.fillScreen(BLACK);
- n = min(tft.width(), tft.height());
- start = micros();
- for (i = 2; i < n; i += 6) {
- i2 = i / 2;
- tft.drawRect(cx - i2, cy - i2, i, i, color);
- }
-
- return micros() - start;
- }
-
- unsigned long testFilledRects(uint16_t color1, uint16_t color2) {
- unsigned long start, t = 0;
- int n, i, i2,
- cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
-
- tft.fillScreen(BLACK);
- n = min(tft.width(), tft.height());
- for (i = n; i > 0; i -= 6) {
- i2 = i / 2;
- start = micros();
- tft.fillRect(cx - i2, cy - i2, i, i, color1);
- t += micros() - start;
- // Outlines are not included in timing results
- tft.drawRect(cx - i2, cy - i2, i, i, color2);
- }
-
- return t;
- }
-
- unsigned long testFilledCircles(uint8_t radius, uint16_t color) {
- unsigned long start;
- int x, y, w = tft.width(), h = tft.height(), r2 = radius * 2;
-
- tft.fillScreen(BLACK);
- start = micros();
- for (x = radius; x < w; x += r2) {
- for (y = radius; y < h; y += r2) {
- tft.fillCircle(x, y, radius, color);
- }
- }
-
- return micros() - start;
- }
-
- unsigned long testCircles(uint8_t radius, uint16_t color) {
- unsigned long start;
- int x, y, r2 = radius * 2,
- w = tft.width() + radius,
- h = tft.height() + radius;
-
- // 这个屏幕没有被清除——这是
- // 有意且不影响报告时间。
- start = micros();
- for (x = 0; x < w; x += r2) {
- for (y = 0; y < h; y += r2) {
- tft.drawCircle(x, y, radius, color);
- }
- }
-
- return micros() - start;
- }
-
- unsigned long testTriangles() {
- unsigned long start;
- int n, i, cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
-
- tft.fillScreen(BLACK);
- n = min(cx, cy);
- start = micros();
- for (i = 0; i < n; i += 5) {
- tft.drawTriangle(
- cx , cy - i, // 峰值
- cx - i, cy + i, // 左下方
- cx + i, cy + i, // 右下角
- tft.color565(0, 0, i));
- }
-
- return micros() - start;
- }
-
- unsigned long testFilledTriangles() {
- unsigned long start, t = 0;
- int i, cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
-
- tft.fillScreen(BLACK);
- start = micros();
- for (i = min(cx, cy); i > 10; i -= 5) {
- start = micros();
- tft.fillTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
- tft.color565(0, i, i));
- t += micros() - start;
- tft.drawTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
- tft.color565(i, i, 0));
- }
-
- return t;
- }
-
- unsigned long testRoundRects() {
- unsigned long start;
- int w, i, i2, red, step,
- cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
-
- tft.fillScreen(BLACK);
- w = min(tft.width(), tft.height());
- start = micros();
- red = 0;
- step = (256 * 6) / w;
- for (i = 0; i < w; i += 6) {
- i2 = i / 2;
- red += step;
- tft.drawRoundRect(cx - i2, cy - i2, i, i, i / 8, tft.color565(red, 0, 0));
- }
-
- return micros() - start;
- }
-
- unsigned long testFilledRoundRects() {
- unsigned long start;
- int i, i2, green, step,
- cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
-
- tft.fillScreen(BLACK);
- start = micros();
- green = 256;
- step = (256 * 6) / min(tft.width(), tft.height());
- for (i = min(tft.width(), tft.height()); i > 20; i -= 6) {
- i2 = i / 2;
- green -= step;
- tft.fillRoundRect(cx - i2, cy - i2, i, i, i / 8, tft.color565(0, green, 0));
- }
-
- return micros() - start;
- }
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