【Arduino】189种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验二百四十九:1.28寸圆形彩色TFT显示屏 高清IPS 模块 240*240 SPI接口GC9A01驱动
项目之一百五十一:ESP32+GC9A01之模拟贪吃蛇的三个随机小尾巴
实验开源代码
- /*
- 【Arduino】189种传感器模块系列实验(资料代码+仿真编程+图形编程)
- 实验二百四十九:1.28寸圆形彩色TFT显示屏 高清IPS 模块 240*240 SPI接口GC9A01驱动
- 项目之一百五十一:ESP32+GC9A01之模拟贪吃蛇的三个随机小尾巴
-
- */
-
- // GC9A01---------- ESP32
- // RST ------------ NC(复位引脚,此处未连接)
- // CS ------------- D4(片选引脚,连接到ESP32的D4引脚)
- // DC ------------- D2(数据/命令选择引脚,连接到ESP32的D2引脚)
- // SDA ------------ D23 (green)(主数据输出引脚,连接到ESP32的D23引脚,绿色线)
- // SCL ------------ D18 (yellow)(时钟信号引脚,连接到ESP32的D18引脚,黄色线)
- // GND ------------ GND(接地引脚,连接到ESP32的接地端)
- // VCC -------------3V3(电源引脚,连接到ESP32的3.3V电源)
-
- #include <TFT_eSPI.h>
-
- #define SCREEN_WIDTH 240
- #define SCREEN_HEIGHT 240
- #define MAX_TRAIL 60 // **增加轨迹长度**
-
- TFT_eSPI tft = TFT_eSPI();
-
- // 定义三个圆的位置、轨迹、速度
- struct Ball {
- int x, y; // 位置
- int vx, vy; // 速度
- int trailX[MAX_TRAIL], trailY[MAX_TRAIL]; // 轨迹
- uint16_t color; // 颜色
- };
-
- Ball redBall = {120, 120, 3, -2, {}, {}, TFT_RED};
- Ball greenBall = {80, 160, -2, 3, {}, {}, TFT_GREEN};
- Ball blueBall = {160, 80, 2, 2, {}, {}, TFT_BLUE};
-
- void setup() {
- Serial.begin(115200);
- tft.init();
- tft.setRotation(2);
- tft.fillScreen(TFT_BLACK);
- }
-
- void updateBall(Ball &ball) {
- // **轨迹更新**
- for (int i = MAX_TRAIL - 1; i > 0; i--) {
- ball.trailX[i] = ball.trailX[i - 1];
- ball.trailY[i] = ball.trailY[i - 1];
- }
- ball.trailX[0] = ball.x;
- ball.trailY[0] = ball.y;
-
- // **位置更新**
- ball.x += ball.vx;
- ball.y += ball.vy;
-
- // **撞墙反弹**
- if (ball.x < 0 || ball.x > SCREEN_WIDTH) ball.vx *= -1;
- if (ball.y < 0 || ball.y > SCREEN_HEIGHT) ball.vy *= -1;
- }
-
- void drawBall(Ball &ball) {
- // **绘制长尾轨迹**
- for (int i = 0; i < MAX_TRAIL; i++) {
- int brightness = 255 - i * 8; // 颜色渐暗
- uint16_t fadedColor = tft.color565((ball.color & 0xFF0000) >> 16 * brightness / 255,
- (ball.color & 0x00FF00) >> 8 * brightness / 255,
- (ball.color & 0x0000FF) * brightness / 255);
- tft.fillCircle(ball.trailX[i], ball.trailY[i], 5, fadedColor);
- }
- }
-
- void loop() {
- tft.fillScreen(TFT_BLACK); // 清屏
- updateBall(redBall);
- updateBall(greenBall);
- updateBall(blueBall);
- drawBall(redBall);
- drawBall(greenBall);
- drawBall(blueBall);
- delay(20); // 控制动画速度
- }
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