Seeeduino + TFT（带触摸）
来源：互联网 发布：macbook绘画软件 编辑：程序博客网 时间：2024/06/01 14:47
从箱子里翻出几年前买的seeeduino和一块2.4寸的TFT，全新的！当初买来是准备在大学里做比赛用的，但是后来学了单片机，觉得这东西鸡肋，就放在角落里落灰了。
上图： 
讲真，用arduino比我学过的任何一款单片机都简单，不但半个小时就把软件、驱动装好了并且走了一遍开发流程。但是arduino IDE的功能实在是太鸡肋了，除了自带了一个串口助手，其他功能还真是少的可怜。接下来就是找一个合适的库，找到后，直接调用现成的函数，搞了将近一个小时的成果： 
再把触摸屏加上去，参考网上的例子做个画板 
再加个开机界面： 
最后把刷屏的程序统统放在一起，定时1分钟不用画板就开始刷屏！
C如下：
#include <Adafruit_GFX.h> // Core graphics library#include <Adafruit_TFTLCD.h> // Hardware-specific library#include <TouchScreen.h>#define YP A3 // must be an analog pin, use "An" notation!#define XM A2 // must be an analog pin, use "An" notation!#define YM 9 // can be a digital pin#define XP 8 // can be a digital pin#define TS_MINX 150//触摸屏的参数#define TS_MINY 180#define TS_MAXX 920#define TS_MAXY 940// For better pressure precision, we need to know the resistance// between X+ and X- Use any multimeter to read it// For the one we're using, its 300 ohms across the X plateTouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);#define LCD_CS A3#define LCD_CD A2#define LCD_WR A1#define LCD_RD A0// optional#define LCD_RESET A4// Assign human-readable names to some common 16-bit color values:#define BLACK 0x0000#define BLUE 0x001F#define RED 0xF800#define GREEN 0x07E0#define CYAN 0x07FF#define MAGENTA 0xF81F#define YELLOW 0xFFE0#define WHITE 0xFFFFAdafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);#define BOXSIZE 40#define PENRADIUS 2int oldcolor, currentcolor;void setup(void) { Serial.begin(115200); Serial.println(F("Paint!")); tft.reset(); uint16_t identifier = tft.readID(); if(identifier == 0x9328) { Serial.println(F("Found ILI9328 LCD driver")); } else { Serial.print(F("Unknown LCD driver chip: ")); Serial.println(identifier, HEX); return; } tft.begin(identifier); tft.fillScreen(BLACK);/* tft.fillRect(0, 0, BOXSIZE, BOXSIZE, RED); tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, YELLOW); tft.fillRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, GREEN); tft.fillRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, CYAN); tft.fillRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, BLUE); tft.fillRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, MAGENTA); // tft.fillRect(BOXSIZE*6, 0, BOXSIZE, BOXSIZE, WHITE); tft.fillRect(0, tft.height()-BOXSIZE, BOXSIZE, tft.height(),WHITE); tft.fillRect(tft.width()-20, tft.height()-20,tft.width(), tft.height(),CYAN); tft.drawRect(0, 0, BOXSIZE, BOXSIZE, WHITE);*/ currentcolor = RED; pinMode(8, OUTPUT);}#define MINPRESSURE 10#define MAXPRESSURE 1000int showFlag(2);unsigned long int showTime(0);void loop(){ if(showFlag==0) { // Serial.println(showTime); showTime++; if(showTime>60000) { showFlag=1; } digitalWrite(8, HIGH); TSPoint p = ts.getPoint(); digitalWrite(8, LOW); //tft.fillRect(tes, test, tes+BOXSIZE, test+BOXSIZE, BLUE); //Serial.print(tes); //Serial.print(" "); //Serial.println(test); // if sharing pins, you'll need to fix the directions of the touchscreen pins // pinMode(XP, OUTPUT); pinMode(XM, OUTPUT); pinMode(YP, OUTPUT); // pinMode(YM, OUTPUT); // we have some minimum pressure we consider 'valid' // pressure of 0 means no pressing! if (p.z > MINPRESSURE && p.z < MAXPRESSURE) { /* Serial.print("X = "); Serial.print(p.x); Serial.print("\tY = "); Serial.print(p.y); Serial.print("\tPressure = "); Serial.println(p.z); */ // scale from 0->1023 to tft.width p.x = map(p.x, TS_MINX, TS_MAXX, tft.width(), 0); p.y = map(p.y, TS_MINY, TS_MAXY, tft.height(), 0); // Serial.print("("); Serial.print(p.x); // Serial.print(", "); Serial.print(p.y); if (p.y < BOXSIZE) { showTime=0; oldcolor = currentcolor; if (p.x < BOXSIZE) { currentcolor = RED; tft.drawRect(0, 0, BOXSIZE, BOXSIZE, WHITE); } else if (p.x < BOXSIZE*2) { currentcolor = YELLOW; tft.drawRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, WHITE); } else if (p.x < BOXSIZE*3) { currentcolor = GREEN; tft.drawRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, WHITE); } else if (p.x < BOXSIZE*4) { currentcolor = CYAN; tft.drawRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, WHITE); } else if (p.x < BOXSIZE*5) { currentcolor = BLUE; tft.drawRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, WHITE); } else if (p.x < BOXSIZE*6) { currentcolor = MAGENTA; tft.drawRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, WHITE); } if (oldcolor != currentcolor) { if (oldcolor == RED) tft.fillRect(0, 0, BOXSIZE, BOXSIZE, RED); if (oldcolor == YELLOW) tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, YELLOW); if (oldcolor == GREEN) tft.fillRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, GREEN); if (oldcolor == CYAN) tft.fillRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, CYAN); if (oldcolor == BLUE) tft.fillRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, BLUE); if (oldcolor == MAGENTA) tft.fillRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, MAGENTA); } } if (((p.y-PENRADIUS) > BOXSIZE) && ((p.y+PENRADIUS) < tft.height())) //画点 { showTime=0; tft.fillCircle(p.x, p.y, PENRADIUS, currentcolor); } if (p.y >tft.height()-BOXSIZE && p.x < BOXSIZE) { showTime=0; // Serial.println("erase"); // press the bottom of the screen to erase tft.fillRect(0, BOXSIZE, tft.width(), tft.height(), BLACK); tft.fillRect(0, tft.height()-BOXSIZE,BOXSIZE, tft.height(),WHITE); tft.fillRect(tft.width()-20, tft.height()-20,tft.width(), tft.height(),currentcolor); } if(p.y >tft.height()-20 && p.x > tft.width()-20) { showFlag=1; } } } if(showFlag==1) { showTime=0; for (uint8_t rotation = 0; rotation <= 4; rotation++) { tft.setRotation(rotation); testText(); delay(5000); } testFillScreen(); delay(1000); testText(); delay(3000); testLines(CYAN); delay(1000); testFastLines(RED, BLUE); delay(1000); testRects(GREEN); delay(1000); testFilledRects(YELLOW, MAGENTA); delay(1000); testFilledCircles(10, MAGENTA); testCircles(10, WHITE); delay(1000); testTriangles(); delay(1000); testFilledTriangles(); delay(1000); testRoundRects(); delay(1000); testFilledRoundRects(); delay(1000); showFlag=2; } if(showFlag==2) { tft.reset(); delay(500); tft.begin(0x9328); tft.setCursor(0, 0);//光标放在原点，以免下次回来时串行 tft.fillScreen(BLACK); tft.setTextColor(BLUE); tft.setTextSize(6); tft.println(" "); tft.println(" "); tft.println(" PRINT"); tft.println(" "); tft.setTextColor(MAGENTA); tft.setTextSize(2); tft.println(" It is easy !!"); tft.println(" "); tft.setTextSize(1); tft.setTextColor(GREEN); tft.println(" Touch me like you do!"); delay(5000); tft.fillScreen(BLACK); tft.fillRect(0, 0, BOXSIZE, BOXSIZE, RED); tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, YELLOW); tft.fillRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, GREEN); tft.fillRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, CYAN); tft.fillRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, BLUE); tft.fillRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, MAGENTA); // tft.fillRect(BOXSIZE*6, 0, BOXSIZE, BOXSIZE, WHITE); tft.fillRect(0, tft.height()-BOXSIZE, BOXSIZE, tft.height(),WHITE); tft.fillRect(tft.width()-20, tft.height()-20,tft.width(), tft.height(),CYAN); tft.drawRect(0, 0, BOXSIZE, BOXSIZE, WHITE); currentcolor = RED; pinMode(13, OUTPUT); showFlag=0; }}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() { tft.fillScreen(BLACK); unsigned long start = micros(); tft.setCursor(0, 0); tft.setTextColor(WHITE); tft.setTextSize(1); tft.println("Hello World!"); tft.setTextColor(YELLOW); tft.setTextSize(2); tft.println(20170806); tft.setTextColor(RED); tft.setTextSize(3); //tft.println(0xABCDEF, HEX); tft.print(15776); tft.print(696109); tft.println(); tft.setTextColor(GREEN); tft.setTextSize(4); tft.println("Hou Lidong"); tft.setTextSize(2); tft.println("I like play it!"); tft.setTextSize(1); tft.println("I try to using the TFT"); tft.println("boring will become a habit"); tft.println("I am so lonely and hungry"); tft.println("I just feel not good"); tft.println("and the arduino ide is too simple"); tft.println("I think IAR or keil will be more useful"); tft.println("just write something here"); //delay(999999); 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; // Screen is not cleared for this one -- this is // intentional and does not affect the reported time. 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, // peak cx - i, cy + i, // bottom left cx + i, cy + i, // bottom right 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, cx = tft.width() / 2 - 1, cy = tft.height() / 2 - 1; tft.fillScreen(BLACK); w = min(tft.width(), tft.height()); start = micros(); for (i = 0; i < w; i += 6) { i2 = i / 2; tft.drawRoundRect(cx - i2, cy - i2, i, i, i / 8, tft.color565(i, 0, 0)); } return micros() - start;}unsigned long testFilledRoundRects() { unsigned long start; int i, i2, cx = tft.width() / 2 - 1, cy = tft.height() / 2 - 1; tft.fillScreen(BLACK); start = micros(); for (i = min(tft.width(), tft.height()); i > 20; i -= 6) { i2 = i / 2; tft.fillRoundRect(cx - i2, cy - i2, i, i, i / 8, tft.color565(0, i, 0)); } return micros() - start;}阅读全文
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