项目实践案例征集K10-六年级第27课 定速巡航的控制
2025-02-124343
AI 快速预览详细
本项目是针对六年级学生的STEM教育课程，使用行空板K10实现定速巡航控制。通过两个按钮分别连接P0和P1端口，实现对巡航速度的动态调整，并通过屏幕实时显示实际速度和设定速度。项目旨在帮助学生理解实际速度与设定速度的关系，锻炼编程逻辑思维。
     注意：本案例中需要另外加两个按钮，如下。按钮1连接到P0端口，按钮2连接到P1端口。     代码如下： /*! * MindPlus * esp32s3bit * */ #include "asr.h" #include "unihiker_k10.h" // 动态变量 volatile float mind_n_XunHangSuDu, mind_n_ShiJiSuDu; // 函数声明 void DF_XunHangJianSu(); void DF_XunHangJiaSu(); // 创建对象 UNIHIKER_K10 k10; uint8_t screen_dir=2; ASR asr; // 主程序开始 void setup() { k10.begin(); k10.initScreen(screen_dir); k10.creatCanvas(); pinMode(P0, INPUT); asr.setAsrSpeed(2); pinMode(P1, INPUT); mind_n_XunHangSuDu = 50; mind_n_ShiJiSuDu = 50; k10.setScreenBackground(0xFFFFFF); k10.canvas->canvasText("巡航速度：", 60, 50, 0x0000FF, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->canvasText(mind_n_XunHangSuDu, 60, 100, 0x0000FF, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->canvasText("实际速度：", 60, 150, 0xFF0000, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->canvasText(mind_n_ShiJiSuDu, 60, 200, 0xFF0000, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->updateCanvas(); } void loop() { if ((k10.buttonA->isPressed())) { mind_n_XunHangSuDu += 5; if ((mind_n_XunHangSuDu>120)) { mind_n_XunHangSuDu = 120; } k10.canvas->canvasText(mind_n_XunHangSuDu, 60, 100, 0x0000FF, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->updateCanvas(); } if ((k10.buttonB->isPressed())) { mind_n_XunHangSuDu -= 5; if ((mind_n_XunHangSuDu<5)) { mind_n_XunHangSuDu = 5; } k10.canvas->canvasText(mind_n_XunHangSuDu, 60, 100, 0x0000FF, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->updateCanvas(); } DF_XunHangJiaSu(); DF_XunHangJianSu(); } // 自定义函数 void DF_XunHangJianSu() { mind_n_ShiJiSuDu = mind_n_XunHangSuDu; if (digitalRead(P0)) { while (!(mind_n_ShiJiSuDu>=(mind_n_XunHangSuDu + 5))) { mind_n_ShiJiSuDu += 1; delay(200); k10.canvas->canvasText("实际速度：", 60, 150, 0xFF0000, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->canvasText(mind_n_ShiJiSuDu, 60, 200, 0xFF0000, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->updateCanvas(); } mind_n_ShiJiSuDu = (mind_n_XunHangSuDu + 5); while (!(mind_n_ShiJiSuDu==mind_n_XunHangSuDu)) { mind_n_ShiJiSuDu -= 1; delay(200); k10.canvas->canvasText("实际速度：", 60, 150, 0xFF0000, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->canvasText(mind_n_ShiJiSuDu, 60, 200, 0xFF0000, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->updateCanvas(); } asr.speak("速度以设为巡航速度"); delay(800); asr.speak(mind_n_XunHangSuDu); } } void DF_XunHangJiaSu() { mind_n_ShiJiSuDu = mind_n_XunHangSuDu; if (digitalRead(P1)) { while (!(mind_n_ShiJiSuDu<=(mind_n_XunHangSuDu - 5))) { mind_n_ShiJiSuDu -= 1; delay(200); k10.canvas->canvasText("实际速度：", 60, 150, 0xFF0000, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->canvasText(mind_n_ShiJiSuDu, 60, 200, 0xFF0000, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->updateCanvas(); } mind_n_ShiJiSuDu = (mind_n_XunHangSuDu - 5); while (!(mind_n_ShiJiSuDu==mind_n_XunHangSuDu)) { mind_n_ShiJiSuDu += 1; delay(200); k10.canvas->canvasText("实际速度：", 60, 150, 0xFF0000, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->canvasText(mind_n_ShiJiSuDu, 60, 200, 0xFF0000, k10.canvas->eCNAndENFont24, 50, true); k10.canvas->updateCanvas(); } asr.speak("速度以设为巡航速度"); delay(800); asr.speak(mind_n_XunHangSuDu); } } |
