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我想建立一个TFT触摸板menue。现在我的问题是我无法在循环函数中绘制任何东西。Arduino的TFT触摸屏蔽:绘制循环
如果我写的任何抽奖功能在循环屏幕变成白色。我认为这是因为屏幕需要一些时间来建立。所以我加了一个延迟(1000)。但是,然后屏幕每秒闪烁,这显然也不是我想要的。
接下来我们要做的事情是,当我触摸显示画面时,程序停止工作。在下面的代码中,我有三个绘制函数。其中两个正在工作,一个不是。 (见注释)
#include <SeeedTouchScreen.h>
#include <TFTConsole.h>
#include <Adafruit_TFTLCD.h>
#include <Adafruit_GFX.h>
#define LCD_CS A3
#define LCD_CD A2
#define LCD_WR A1
#define LCD_RD A0
#define LCD_RESET A4
#define TS_MINX 169
#define TS_MINY 208
#define TS_MAXX 1781
#define TS_MAXY 1820
#define YP A2 // must be an analog pin, use "An" notation!
#define XM A3 // must be an analog pin, use "An" notation!
#define YM 8 // can be a digital pin
#define XP 9 // can be a digital pin
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
Adafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);
TouchScreen ts = TouchScreen(XP, YP, XM, YM);
boolean touched = false;
void setup() {
Serial.begin(9600);
Serial.print("Starting...");
tft.reset();
tft.begin(0x9325);
tft.setRotation(1);
tft.fillScreen(BLACK);
//Print "PPM CO" Text
tft.setCursor(50, 30);
tft.setTextColor(GREEN);
tft.setTextSize(3);
tft.print("Hello World"); //<- this is displayed fine
delay(1000);
}
boolean first = true;
void loop() {
if (first) {
first = false;
tft.drawCircle(119, 160, 20, random(0xFFFF)); //<- This is also displayed
}
Point p = ts.getPoint();
p.x = map(p.x, TS_MINX, TS_MAXX, 0, 240);
p.y = map(p.y, TS_MINY, TS_MAXY, 0, 320);
if (p.x <= 240 && p.y <= 320 && p.x >= 0 && p.y >= 0) {
Serial.println("don't touch me!");
touched = true;
}
else {
touched = false;
}
if (touched) {
tft.drawCircle(119, 180, 20, RED); //<- This is not displayed and makes the screen flash
delay(1000);
}
//tft.fillScreen(BLUE);
//delay(500);
}
只有当我的代码变量感动不切换回假,如果我停止触摸显示屏内的最后画圆。
有没有人有线索我做错了什么?
更新:我通过触摸显示屏让触摸事件只发生一次,使显示屏停止闪烁。但我仍然有问题,没有任何东西...
void loop() {
//Touchposition bestimmen
Point p = ts.getPoint();
p.x = map(p.x, TS_MINX, TS_MAXX, 0, 240);
p.y = map(p.y, TS_MINY, TS_MAXY, 0, 320);
if (p.x <= 240 && p.y <= 320 && p.x >= 0 && p.y >= 0) {
if (released) {
touched = true;
released = false;
}
}
else {
//Serial.println("Touch me where I like it!");
touched = false;
released = true;
}
if (touched && !released) {
Serial.println("don't touch me!");
drawButton(100, 100, "Manuell");
touched = false;
delay(500);
}
}