The reference to 37 sensors and actuators has been widely circulated on the Internet. In fact, there must be more than 37 sensor modules compatible with Arduino. In view of the fact that I have accumulated some sensor and actuator modules on hand, according to the concept of practice to get true knowledge (must be done), for the purpose of learning and communication, I am going to try a series of experiments one by one, regardless of success (the program goes through) or not, They will be recorded - small progress or unsolvable problems, hoping to inspire others.
[Arduino] 168 kinds of sensor module series experiments (data code + simulation programming + graphics programming)
Experiment 153: 2.4-inch TFT LCD touch screen color screen module can be directly plugged into UNO R3 Mega2560 development board
[Arduino] 168 sensor module series experiments (data code + simulation programming + graphics programming)
Experiment 153: The 2.4-inch TFT LCD touch screen color screen module can be directly plugged into the UNO R3 Mega2560 development board
Project 3: Use the graphics library to randomly draw various graphics, trigonometric functions and English strings
Arduino experiment open source code
/*
【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
项目之三：使用图形库随机绘制各种图形，三角函数以及英文字符串
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 my_lcd(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
void show_string(uint8_t *str, int16_t x, int16_t y, uint8_t csize, uint16_t fc, uint16_t bc, boolean mode) {
my_lcd.Set_Text_Mode(mode);
my_lcd.Set_Text_Size(csize);
my_lcd.Set_Text_colour(fc);
my_lcd.Set_Text_Back_colour(bc);
my_lcd.Print_String(str, x, y);
}
//显示主图框
unsigned long show_text(void) {
unsigned long time_start = micros();
my_lcd.Set_Draw_color(32, 0, 255);
my_lcd.Fill_Rectangle(0, 0, my_lcd.Get_Display_Width() - 1, 14);
show_string("---> Hello World <---", CENTER, 3, 1, 0x07E0, 0, 1);
my_lcd.Set_Draw_color(128, 128, 128);
my_lcd.Fill_Rectangle(0, my_lcd.Get_Display_Height() - 15, my_lcd.Get_Display_Width() - 1, my_lcd.Get_Display_Height() - 1);
show_string("* Universal Color TFT Display Library *", CENTER, my_lcd.Get_Display_Height() - 11, 1, 0xFFFF, 0, 1);
my_lcd.Set_Draw_color(255, 0, 0);
my_lcd.Draw_Rectangle(0, 15, my_lcd.Get_Display_Width() - 1, my_lcd.Get_Display_Height() - 16);
return micros() - time_start;
}
//显示三角函数
unsigned long show_triangle_function(void) {
uint16_t i;
unsigned long time_start = micros();
//绘制十字准线
my_lcd.Set_Draw_color(0, 0, 255);
my_lcd.Draw_Fast_VLine(my_lcd.Get_Display_Width() / 2 - 1, 16, my_lcd.Get_Display_Height() - 32);
my_lcd.Draw_Fast_HLine(1, my_lcd.Get_Display_Height() / 2 - 1, my_lcd.Get_Display_Width() - 2);
for (i = 1; i <= (my_lcd.Get_Display_Height() - 32) / 2 / 10; i++) {
my_lcd.Draw_Fast_HLine(my_lcd.Get_Display_Width() / 2 - 1 - 2, my_lcd.Get_Display_Height() / 2 - 1 - i * 10, 5);
my_lcd.Draw_Fast_HLine(my_lcd.Get_Display_Width() / 2 - 1 - 2, my_lcd.Get_Display_Height() / 2 - 1 + i * 10, 5);
}
for (i = 1; i <= (my_lcd.Get_Display_Width() - 2) / 2 / 10; i++) {
my_lcd.Draw_Fast_VLine(my_lcd.Get_Display_Width() / 2 - 1 - i * 10, my_lcd.Get_Display_Height() / 2 - 1 - 2, 5);
my_lcd.Draw_Fast_VLine(my_lcd.Get_Display_Width() / 2 - 1 + i * 10, my_lcd.Get_Display_Height() / 2 - 1 - 2, 5);
}
// 绘制罪恶线（Draw sin lines）
show_string("sin", 5, 17, 1, 0x07FF, 0, 0);
my_lcd.Set_Draw_color(0, 255, 255);
for (i = 1; i < my_lcd.Get_Display_Width() - 2; i++) {
my_lcd.Draw_Pixel(i, my_lcd.Get_Display_Height() / 2 - 1 + (sin(((i * 1.13) * 3.14) / 180) * 95));
}
// 画cos线（Draw cos lines）
show_string("cos", 5, 25, 1, 0x07E0, 0, 0);
my_lcd.Set_Draw_color(0, 255, 0);
for (i = 1; i < my_lcd.Get_Display_Width() - 2; i++) {
my_lcd.Draw_Pixel(i, my_lcd.Get_Display_Height() / 2 - 1 + (cos(((i * 1.13) * 3.14) / 180) * 95));
}
// 绘制棕褐色线（Draw tan lines）
show_string("tan", 5, 33, 1, 0xFFE0, 0, 0);
my_lcd.Set_Draw_color(255, 255, 0);
for (i = 1; i < my_lcd.Get_Display_Width() - 2; i++) {
my_lcd.Draw_Pixel(i, my_lcd.Get_Display_Height() / 2 - 1 + (tan(((i * 1.13) * 3.14) / 180) * 10));
}
// 绘制婴儿床线(Draw cot lines)
show_string("cot", 5, 41, 1, 0xF800, 0, 0);
my_lcd.Set_Draw_color(255, 0, 0);
for (i = 1; i < my_lcd.Get_Display_Width() - 2; i++) {
my_lcd.Draw_Pixel(i, my_lcd.Get_Display_Height() / 2 - 1 + 1 / (tan(((i * 1.13) * 3.14) / 180) * 0.1));
}
return micros() - time_start;
}
// 绘制移动的正弦波(Draw a moving sinewave)
unsigned long show_sinewave(void) {
uint16_t buf[my_lcd.Get_Display_Width() - 2], x = 1, i, y;
unsigned long time_start = micros();
int16_t wid = my_lcd.Get_Display_Width();
int16_t t;
float k;
if (wid == 320) {
t = 20;
k = 1.1;
}
else {
t = 15;
k = 0.7;
}
my_lcd.Set_Draw_color(0, 0, 255);
my_lcd.Draw_Fast_VLine(my_lcd.Get_Display_Width() / 2 - 1, 16, my_lcd.Get_Display_Height() - 32);
my_lcd.Draw_Fast_HLine(1, my_lcd.Get_Display_Height() / 2 - 1, my_lcd.Get_Display_Width() - 2);
for (i = 1; i < ((my_lcd.Get_Display_Width() - 2)*t); i++) {
x++;
if (x == my_lcd.Get_Display_Width() - 1) {
x = 1;
}
if (i > my_lcd.Get_Display_Width() - 1) {
if ((x == my_lcd.Get_Display_Width() / 2 - 1) || (buf[x - 1] == my_lcd.Get_Display_Height() / 2 - 1)) {
my_lcd.Set_Draw_color(0, 0, 255);
}
else {
my_lcd.Set_Draw_color(0, 0, 0);
}
my_lcd.Draw_Pixel(x, buf[x - 1]);
}
my_lcd.Set_Draw_color(255, 64, 255);
y = my_lcd.Get_Display_Height() / 2 - 1 + (sin(((i * k) * 3.14) / 180) * (90 - (i / 100)));
my_lcd.Draw_Pixel(x, y);
buf[x - 1] = y;
}
return micros() - time_start;
}
// 绘制一些实心矩形(Draw some filled rectangles)
unsigned long show_fill_rectangle(void) {
uint16_t i;
unsigned long time_start = micros();
uint16_t side_len = (my_lcd.Get_Display_Height() - 40) / 5;
uint16_t x_spec = (my_lcd.Get_Display_Width() - 5 * side_len) / 2;
uint16_t y_spec = (my_lcd.Get_Display_Height() - 5 * side_len) / 2;
for (i = 0; i < 5; i++)
{
switch (i)
{
case 0:
my_lcd.Set_Draw_color(255, 0, 255);
break;
case 1:
my_lcd.Set_Draw_color(255, 0, 0);
break;
case 2:
my_lcd.Set_Draw_color(0, 255, 0);
break;
case 3:
my_lcd.Set_Draw_color(0, 0, 255);
break;
case 4:
my_lcd.Set_Draw_color(255, 255, 0);
break;
default:
break;
}
my_lcd.Fill_Rectangle(x_spec + i * side_len - 1, y_spec + i * side_len - 1, x_spec + (i + 1)*side_len - 1, y_spec + (i + 1)*side_len - 1);
my_lcd.Fill_Rectangle(x_spec + i * side_len - 1, y_spec + (5 - i)*side_len - 1, x_spec + (i + 1)*side_len - 1, y_spec + (4 - i)*side_len - 1);
}
return micros() - time_start;
}
// 绘制一些填充的圆角矩形(Draw some filled round rectangles)
unsigned long show_fill_round_rectangle(void) {
uint16_t i;
unsigned long time_start = micros();
uint16_t side_len = (my_lcd.Get_Display_Height() - 40) / 5;
uint16_t x_spec = (my_lcd.Get_Display_Width() - 5 * side_len) / 2;
uint16_t y_spec = (my_lcd.Get_Display_Height() - 5 * side_len) / 2;
for (i = 0; i < 5; i++) {
switch (i) {
case 0:
my_lcd.Set_Draw_color(255, 0, 255);
break;
case 1:
my_lcd.Set_Draw_color(255, 0, 0);
break;
case 2:
my_lcd.Set_Draw_color(0, 255, 0);
break;
case 3:
my_lcd.Set_Draw_color(0, 0, 255);
break;
case 4:
my_lcd.Set_Draw_color(255, 255, 0);
break;
default:
break;
}
my_lcd.Fill_Round_Rectangle(x_spec + i * side_len - 1, y_spec + i * side_len - 1, x_spec + (i + 1)*side_len - 1, y_spec + (i + 1)*side_len - 1, 10);
my_lcd.Fill_Round_Rectangle(x_spec + i * side_len - 1, y_spec + (5 - i)*side_len - 1, x_spec + (i + 1)*side_len - 1, y_spec + (4 - i)*side_len - 1, 10);
}
return micros() - time_start;
}
// 画一些实心圆圈(Draw some filled circles)
unsigned long show_fill_circle(void) {
uint16_t i;
unsigned long time_start = micros();
uint16_t r_len = (my_lcd.Get_Display_Height() - 40) / 5 / 2;
uint16_t x_spec = (my_lcd.Get_Display_Width() - 5 * r_len * 2) / 2;
uint16_t y_spec = (my_lcd.Get_Display_Height() - 5 * r_len * 2) / 2;
for (i = 0; i < 5; i++) {
switch (i) {
case 0:
my_lcd.Set_Draw_color(255, 0, 255);
break;
case 1:
my_lcd.Set_Draw_color(255, 0, 0);
break;
case 2:
my_lcd.Set_Draw_color(0, 255, 0);
break;
case 3:
my_lcd.Set_Draw_color(0, 0, 255);
break;
case 4:
my_lcd.Set_Draw_color(255, 255, 0);
break;
default:
break;
}
my_lcd.Fill_Circle(x_spec + r_len + i * r_len * 2 - 1, y_spec + r_len + i * r_len * 2 - 1, r_len);
my_lcd.Fill_Circle(x_spec + r_len + i * r_len * 2 - 1, y_spec + (5 - i)*r_len * 2 - r_len - 1, r_len);
}
return micros() - time_start;
}
// 画一些实心三角形(Draw some filled triangles)
unsigned long show_fill_triangle(void) {
uint16_t i;
unsigned long time_start = micros();
uint16_t h_len = (my_lcd.Get_Display_Height() - 40) / 5;
uint16_t side_len = (h_len * 115) / 100;
uint16_t x_spec = (my_lcd.Get_Display_Width() - 5 * side_len) / 2;
uint16_t y_spec = (my_lcd.Get_Display_Height() - 5 * h_len) / 2;
for (i = 0; i < 5; i++) {
switch (i) {
case 0:
my_lcd.Set_Draw_color(255, 0, 255);
break;
case 1:
my_lcd.Set_Draw_color(255, 0, 0);
break;
case 2:
my_lcd.Set_Draw_color(0, 255, 0);
break;
case 3:
my_lcd.Set_Draw_color(0, 0, 255);
break;
case 4:
my_lcd.Set_Draw_color(255, 255, 0);
break;
default:
break;
}
my_lcd.Fill_Triangle(x_spec + i * side_len - 1, y_spec + (i + 1)*h_len - 1, x_spec + side_len / 2 + i * side_len - 1, y_spec + i * h_len - 1, x_spec + (i + 1)*side_len - 1, y_spec + (i + 1)*h_len - 1);
my_lcd.Fill_Triangle(x_spec + i * side_len - 1, y_spec + (5 - i)*h_len - 1, x_spec + side_len / 2 + i * side_len - 1, y_spec + (4 - i)*h_len - 1, x_spec + (i + 1)*side_len - 1, y_spec + (5 - i)*h_len - 1);
}
return micros() - time_start;
}
// 在图案中绘制一些线条(Draw some lines in a pattern)
unsigned long show_grid_lines(void) {
uint16_t i;
unsigned long time_start = micros();
int16_t wid = my_lcd.Get_Display_Width();
float k;
if (wid == 320) {
k = 1.44;
}
else {
k = 1.6;
}
my_lcd.Set_Draw_color(255, 0, 0);
for (i = 16; i < my_lcd.Get_Display_Height() - 17; i += 5) {
my_lcd.Draw_Line(1, i, (i * k) - 10, my_lcd.Get_Display_Height() - 17);
}
my_lcd.Set_Draw_color(255, 0, 0);
for (i = my_lcd.Get_Display_Height() - 17; i > 16; i -= 5) {
my_lcd.Draw_Line(my_lcd.Get_Display_Width() - 2, i, (i * k) - 11, 16);
}
my_lcd.Set_Draw_color(0, 255, 255);
for (i = my_lcd.Get_Display_Height() - 16; i > 16; i -= 5) {
my_lcd.Draw_Line(1, i, (my_lcd.Get_Display_Height() - 17)*k + 10 - (i * k), 16);
}
my_lcd.Set_Draw_color(0, 255, 255);
for (int i = 15; i < my_lcd.Get_Display_Height() - 17; i += 5) {
my_lcd.Draw_Line(my_lcd.Get_Display_Width() - 2, i, (my_lcd.Get_Display_Height() - 17)*k + 10 - (i * k), my_lcd.Get_Display_Height() - 17);
}
return micros() - time_start;
}
// 绘制一些随机像素(Draw some random pixels)
unsigned long show_random_pixels(void) {
uint16_t i;
unsigned long time_start = micros();
for (i = 0; i < 6000; i++) {
my_lcd.Set_Draw_color(random(255), random(255), random(255));
my_lcd.Draw_Pixel(2 + random(my_lcd.Get_Display_Width() - 4), 17 + random(my_lcd.Get_Display_Height() - 34));
}
return micros() - time_start;
}
// 画一些随机线(Draw some random lines)
unsigned long show_random_lines(void) {
uint16_t i;
unsigned long time_start = micros();
for (i = 0; i < 300; i++) {
my_lcd.Set_Draw_color(random(255), random(255), random(255));
my_lcd.Draw_Line(2 + random(my_lcd.Get_Display_Width() - 4), 17 + random(my_lcd.Get_Display_Height() - 34), 2 + random(my_lcd.Get_Display_Width() - 4), 17 + random(my_lcd.Get_Display_Height() - 34));
}
return micros() - time_start;
}
// 绘制一些随机矩形(Draw some random rectangles)
unsigned long show_random_rectangles(void) {
uint16_t i;
unsigned long time_start = micros();
for (i = 0; i < 150; i++) {
my_lcd.Set_Draw_color(random(255), random(255), random(255));
my_lcd.Draw_Rectangle(2 + random(my_lcd.Get_Display_Width() - 4), 17 + random(my_lcd.Get_Display_Height() - 34), 2 + random(my_lcd.Get_Display_Width() - 4), 17 + random(my_lcd.Get_Display_Height() - 34));
}
return micros() - time_start;
}
// 画一些随机的圆圈(Draw some random circles)
unsigned long show_random_circles(void) {
uint16_t i;
unsigned long time_start = micros();
for (i = 0; i < 150; i++) {
my_lcd.Set_Draw_color(random(255), random(255), random(255));
my_lcd.Draw_Circle(41 + random(my_lcd.Get_Display_Width() - 82), 56 + random(my_lcd.Get_Display_Height() - 112), random(40));
}
return micros() - time_start;
}
// 画一些随机三角形(Draw some random triangles)
unsigned long show_random_triangles(void) {
uint16_t i;
unsigned long time_start = micros();
for (i = 0; i < 150; i++) {
my_lcd.Set_Draw_color(random(255), random(255), random(255));
my_lcd.Draw_Triangle(2 + random(my_lcd.Get_Display_Width() - 4), 17 + random(my_lcd.Get_Display_Height() - 34), 2 + random(my_lcd.Get_Display_Width() - 4), 17 + random(my_lcd.Get_Display_Height() - 34), 2 + random(my_lcd.Get_Display_Width() - 4), 17 + random(my_lcd.Get_Display_Height() - 34));
}
return micros() - time_start;
}
// 画一些随机的圆角矩形(Draw some random round rectangles)
unsigned long show_random_round_rectangles(void) {
uint16_t i;
unsigned long time_start = micros();
for (i = 0; i < 150; i++) {
my_lcd.Set_Draw_color(random(255), random(255), random(255));
my_lcd.Draw_Round_Rectangle(2 + random(my_lcd.Get_Display_Width() - 4), 17 + random(my_lcd.Get_Display_Height() - 34), 2 + random(my_lcd.Get_Display_Width() - 4), 17 + random(my_lcd.Get_Display_Height() - 34), 5);
}
return micros() - time_start;
}
// 绘制一些随机位图（Draw some random bit maps）
unsigned long show_random_bit_map(void) {
uint16_t buf[48], i;
unsigned long time_start = micros();
int16_t len = (my_lcd.Get_Display_Height() * 3 / 4) / 6;
for (i = 0; i < 48; i++) {
my_lcd.Set_Draw_color(random(255), random(255), random(255));
buf[i] = my_lcd.Get_Draw_color();
}
for (i = 1; i <= 6; i++) {
my_lcd.Draw_Bit_Map(my_lcd.Get_Display_Width() / 2 - 1 - ((len / 2) * 4 / 3)*i, my_lcd.Get_Display_Height() / 2 - 1 - (len / 2)*i, 8, 6, buf, i * (len / 6));
delay(100);
}
return micros() - time_start;
}
//清屏运行统计（Clear the screen）
void clear_screen(void) {
delay(2000);
my_lcd.Set_Draw_color(0, 0, 0);
my_lcd.Fill_Rectangle(1, 16, my_lcd.Get_Display_Width() - 2, my_lcd.Get_Display_Height() - 17);
}
unsigned long (*show_function[])(void) {
show_text,
show_triangle_function,
show_sinewave,
show_fill_rectangle,
show_fill_round_rectangle,
show_fill_circle,
show_fill_triangle,
show_grid_lines,
show_random_pixels,
show_random_lines,
show_random_rectangles,
show_random_round_rectangles,
show_random_circles,
show_random_triangles,
show_random_bit_map,
};
uint8_t *show_str[] =
{
"show text :",
"show triangle function :",
"show sinewave :",
"show fill rectangle :",
"show fill round rectangle :",
"show fill circle :",
"show fill triangle :",
"show grid lines :",
"show random pixels :",
"show random lines :",
"show random rectangles :",
"show random round rectangles :",
"show random circles :",
"show random triangles :",
"show random bit_map :"
};
//显示程序运行时间（display the running time of programs）
unsigned long show_total_time(void) {
uint16_t i;
unsigned long buf[15];
unsigned long time_start = micros();
for (i = 0; i < 15; i++) {
buf[i] = show_function[i]();
clear_screen();
}
for (i = 0; i < 15; i++) {
show_string(show_str[i], (my_lcd.Get_Display_Width() - 260) / 2 - 1, (my_lcd.Get_Display_Height() - 150) / 2 + i * 10 - 1, 1, 0xFD20, 0, 1);
my_lcd.Set_Text_colour(0, 255, 0);
my_lcd.Print_Number_Int(buf[i], (my_lcd.Get_Display_Width() - 260) / 2 - 1 + 200, (my_lcd.Get_Display_Height() - 150) / 2 + i * 10 - 1, 0, ' ', 10);
}
delay(2000);
return micros() - time_start;
}
//显示结束和总运行时间（display ending and total running time）
void show_end(unsigned long run_time) {
my_lcd.Fill_Screen(0, 255, 255);
my_lcd.Set_Draw_color(255, 0, 0);
my_lcd.Fill_Round_Rectangle(my_lcd.Get_Display_Width() / 2 - 1 - 120 + 1, my_lcd.Get_Display_Height() / 2 - 1 - 60 + 1, my_lcd.Get_Display_Width() / 2 - 1 + 120 - 1, my_lcd.Get_Display_Height() / 2 - 1 + 60 - 1, 5);
my_lcd.Set_Text_colour(0, 255, 255);
my_lcd.Set_Text_Size(1);
my_lcd.Set_Text_Mode(1);
my_lcd.Print_String("Running over!", CENTER, my_lcd.Get_Display_Height() / 2 - 1 - 40);
my_lcd.Print_String("That's ok!", CENTER, my_lcd.Get_Display_Height() / 2 - 1 - 30);
my_lcd.Print_String("After a few seconds,", CENTER, my_lcd.Get_Display_Height() / 2 - 1 - 20);
my_lcd.Print_String("it will restart.", CENTER, my_lcd.Get_Display_Height() / 2 - 1 - 10);
my_lcd.Print_String("Please wait ...", CENTER, my_lcd.Get_Display_Height() / 2 - 1);
my_lcd.Set_Text_colour(255, 255, 0);
my_lcd.Print_String("Total runtime(us): ", my_lcd.Get_Display_Width() / 2 - 1 - 90, my_lcd.Get_Display_Height() / 2 - 1 + 40);
my_lcd.Set_Text_colour(0, 255, 0);
my_lcd.Print_Number_Int(run_time, my_lcd.Get_Display_Width() / 2 - 1 + 30, my_lcd.Get_Display_Height() / 2 - 1 + 40, 0, ' ', 10);
delay(2000);
}
void setup() {
Serial.begin(9600);
my_lcd.Init_LCD();
Serial.println(my_lcd.Read_ID(), HEX);
my_lcd.Fill_Screen(0x0);
my_lcd.Set_Rotation(1);
}
void loop() {
unsigned long total_time;
my_lcd.Fill_Screen(0x0);
total_time = show_total_time();
show_end(total_time);
}
Project 3: Use the graphics library to randomly draw various graphics, trigonometric functions and English strings
Arduino experiment scene diagram
[Arduino] 168 kinds of sensor module series experiments (data code + simulation programming + graphics programming)
Experiment 153: 2.4-inch TFT LCD touch screen color screen module can be directly plugged into UNO R3 Mega2560 development board
Project 3: Random drawing using graphics library Various graphics, trigonometric functions and English strings (video 60 seconds)
https://v.youku.com/v_show/id_XNTE3NDU2NzEwMA==.html?spm=a2hcb.playlsit.page.1
[Arduino] 168 sensor module series experiments (data code + simulation programming + graphics programming)
Experiment 153: The 2.4-inch TFT LCD touch screen color screen module can be directly plugged into the UNO R3 Mega2560 development board
Project 4: Comprehensive test of KBV graphics and string display
Experimental open source code:
/*
【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;
}
Experimental serial port return
[Arduino] 168 sensor module series experiments (data code + simulation programming + graphics programming)
Experiment 153: The 2.4-inch TFT LCD touch screen color screen module can be directly plugged into the UNO R3 Mega2560 development board
Project 4: Comprehensive test of Kbv graphics and string display (experimental recording video 1 minute 26 seconds)
Experiment dynamic diagram
[Arduino] 168 sensor module series experiments (data code + simulation programming + graphics programming)
Experiment 153: The 2.4-inch TFT LCD touch screen color screen module can be directly plugged into the UNO R3 Mega2560 development board
Project 4: Comprehensive test of Kbv graphics and string display (experimental recording video 1 minute 26 seconds)
https://v.youku.com/v_show/id_XNTE3NTAxMDcwNA==.html
[Arduino] 168 sensor module series experiments (data code + simulation programming + graphics programming)
Experiment 153: The 2.4-inch TFT LCD touch screen color screen module can be directly plugged into the UNO R3 Mega2560 development board
Project 5: Generating real-time TV station test cards
Experimental open source code:
/*
【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
项目之五：生成实时时间的电视台测试卡
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>
#if defined(_GFXFONT_H_)
#include <Fonts/FreeSans9pt7b.h>
#define ADJ_BASELINE 11 //新字体将光标设置为字母底部
#else
#define ADJ_BASELINE 0 //遗留设置光标到字母顶部
#endif
#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
#define RGB(r, g, b) (((r&0xF8)<<8)|((g&0xFC)<<3)|(b>>3))
#define GREY RGB(127, 127, 127)
#define DARKGREY RGB(64, 64, 64)
#define TURQUOISE RGB(0, 128, 128)
#define PINK RGB(255, 128, 192)
#define OLIVE RGB(128, 128, 0)
#define PURPLE RGB(128, 0, 128)
#define AZURE RGB(0, 128, 255)
#define ORANGE RGB(255,128,64)
#include <stdio.h>
uint16_t ID;
uint8_t hh, mm, ss; //当前时间的储存容器变量
uint8_t conv2d(const char* p){
uint8_t v = 0;
if ('0' <= *p && *p <= '9') v = *p - '0';
return 10 * v + *++p - '0';
}
void setup(void){
Serial.begin(9600);
tft.reset();
ID = tft.readID();
Serial.print("TFT ID = 0x");
Serial.println(ID, HEX);
// if (ID == 0xD3D3) ID = 0x9481; // 只写扩展
if (ID == 0xD3D3) ID = 0x9486; // 只写扩展
tft.begin(ID);
tft.setRotation(1);
tft.fillScreen(BLACK);
#if defined(_GFXFONT_H_)
tft.setFont(&FreeSans9pt7b);
#endif
hh = conv2d(__TIME__);
mm = conv2d(__TIME__ + 3);
ss = conv2d(__TIME__ + 6);
}
void loop(void){
int16_t x, y, dx, dy, radius = 108, idx;
uint16_t w, h, len, mask;
uint16_t colors[8] = {
BLACK, WHITE, YELLOW, CYAN, GREEN, MAGENTA, RED, BLUE };
uint16_t height, width;
width = tft.width();
height = tft.height();
tft.fillRect(0, 0, 7, 3, WHITE);
tft.fillRect(313, 0, 7, 3, WHITE);
tft.fillRect(0, 237, 7, 3, WHITE);
tft.fillRect(313, 237, 7, 3, WHITE);
for (y = 0, w = 18, h = 3; y < 240; y += 13 * w + h) {
for (x = 25; x < 320 - 18; x += 2 * w) {
tft.fillRect(x, y, w, h, WHITE);
}
}
for (x = 0, w = 7, h = 18; x < 320; x += 17 * h + w) {
for (y = 21; y < 240 - 18; y += 2 * h) {
tft.fillRect(x, y, w, h, WHITE);
}
}
tft.fillRect(7, 3, 17 * 18, 13 * 18, GREY);
for (x = 7, y = 0, w = 1, h = 240; x < 320; x += 18) {
tft.fillRect(x, y, w, h, WHITE);
}
for (x = 0, y = 3, w = 320, h = 1; y < 240; y += 18) {
tft.fillRect(x, y, w, h, WHITE);
}
tft.fillRect(26, 22, 17, 99, TURQUOISE);
tft.fillRect(26, 120, 17, 99, PINK);
tft.fillRect(44, 22, 17, 35, AZURE);
tft.fillRect(44, 184, 17, 35, ORANGE);
tft.fillRect(260, 22, 17, 35, AZURE);
tft.fillRect(260, 184, 17, 35, ORANGE);
tft.fillRect(278, 22, 17, 99, OLIVE);
tft.fillRect(278, 120, 17, 99, PURPLE);
for (dx = radius; dx > -radius; dx--) {
w = sqrt(radius * radius - dx * dx);
y = 120 - dx;
dy = (y - 3) / 18;
mask = 7;
colors[0] = (dy == 3) ? DARKGREY : BLACK;
switch (dy) {
case 0:
case 1: idx = 1; len = 0; break;
case 2: idx = 0; len = 0; break;
case 3: idx = 0; len = 13; mask = 1; break;
case 4:
case 5: idx = 2; len = 38; break;
case 6:
case 7:
case 8: idx = 0; len = 0; break;
case 9: for (idx = 2; idx < 8; idx++) {
//dy = 0xFF >> (7 - idx);
dy = (idx - 2) * 51;
colors[idx] = tft.color565(dy, dy, dy);
}
idx = 2; len = 38; break;
case 10: idx = 1; len = 0; break;
case 11:
case 12: colors[2] = YELLOW; idx = 2; len = 0; break;
}
if (len == 0)
tft.fillRect(160 - w, y, w * 2, 1, colors[idx]);
else {
if (mask == 1) idx = 1 + (w) / len;
dy = w % len;
for (x = 160 - w; x < 160 + w; idx++) {
tft.fillRect(x, y, dy, 1, colors[idx & mask]);
x += dy;
if (x + len > 160 + w) dy = w % len;
else dy = len;
}
}
}
for (x = 72, y = 129, dx = 5, dy = 0; dx > 0; x += 2 * dx) {
tft.fillRect(x, y, dx, 36, WHITE);
dy += dx * 2;
if (dy >= 36) {
dy = 0;
dx--;
}
}
tft.fillRect(160 - 8, 5 * 18 + 3, 17, 3 * 18, BLACK);
for (x = 3 * 18 + 7, y = 6 * 18 + 3, w = 1, h = 18; x < 160 + 108; x += 18) {
tft.fillRect(x, y, w, h, WHITE);
}
tft.fillRect(160 - 108, 120, 108 * 2, 1, WHITE);
tft.fillRect(160, 5 * 18 + 3, 1, 3 * 18, WHITE);
tft.fillRect(108, 2 * 18 + 3, 6 * 18, 18, WHITE);
// tft.fillRect(108, 10 * 18 + 3, 6 * 18, 18, BLACK);
tft.fillRect(160 - 8, 11 * 18 + 3, 17, radius - 18*9/2, RED);
tft.setCursor(160 - 36, 24 + ADJ_BASELINE);
tft.setTextColor(BLACK);
tft.setTextSize(1);
tft.print("320x240");
tft.setCursor(109, 43 + ADJ_BASELINE);
tft.setTextColor(BLACK);
tft.setTextSize(1);
tft.print("ID=0x");
tft.print(tft.readID(), HEX);
tft.setTextColor(WHITE, BLACK);
// tft.setFont(NULL);
// tft.setTextSize(2);
while (1) {
if (++ss > 59) {
ss = 0;
mm++;
if (mm > 59) {
mm = 0;
hh++;
if (hh > 23) hh = 0;
}
}
char buf[20];
sprintf(buf, "%02d:%02d:%02d", hh, mm, ss);
tft.fillRect(108, 10 * 18 + 3, 6 * 18, 18, BLACK);
tft.setCursor(128, 187 + ADJ_BASELINE);
tft.print(buf);
delay(1000);
}
}
Arduino experiment scene diagram
