新增 Hc05 类，支持 HC-05 蓝牙模块的串口通信，增加串口设置波特率函数

Core/App/Center/common_center.hpp

@@ -2,6 +2,7 @@
 
 #include "../Common/can_mv.hpp"
 #include "../Common/df_player.hpp"
+#include "../Common/hc05.hpp"
 #include "../Common/ultrasonic.hpp"
 #include "../config.hpp"
 #include "Common/serial_port.hpp"
@@ -33,12 +34,21 @@ public:
         return *instance;
     }
 
+    static Hc05& GetHc05() {
+        static Hc05* instance = nullptr;
+        if (instance == nullptr) {
+            instance = new Hc05(Config::kHc05Uart);
+        }
+        return *instance;
+    }
+
     static SerialPort& GetDebugSerialPort() {
+        static constexpr auto kBaudRate = 115200;
         static constexpr auto kLength   = 256;
         static constexpr auto kTimeout  = 1000;
         static SerialPort* instance     = nullptr;
         if (instance == nullptr) {
-            instance = new SerialPort(Config::kDebugUart, kLength, kTimeout);
+            instance = new SerialPort(Config::kDebugUart, kBaudRate, kLength, kTimeout);
         }
         return *instance;
     }

Core/App/Common/can_mv.hpp

@@ -7,11 +7,13 @@
 
 class CanMv {
 public:
-    explicit CanMv(UART_HandleTypeDef* uart) : serialPort(std::make_unique<SerialPort>(uart, kLength, kTimeout)) {}
+    explicit CanMv(UART_HandleTypeDef* uart)
+        : serialPort(std::make_unique<SerialPort>(uart, kBaudRate, kLength, kTimeout)) {}
 
     ~CanMv() = default;
 
 private:
+    static constexpr uint32_t kBaudRate = 115200;
     static constexpr uint32_t kLength   = 128;
     static constexpr uint32_t kTimeout  = 10;
     std::unique_ptr<SerialPort> serialPort;

Core/App/Common/df_player.hpp

@@ -7,7 +7,8 @@
 
 class DfPlayer {
 public:
-    explicit DfPlayer(UART_HandleTypeDef* uart) : serialPort(std::make_unique<SerialPort>(uart, kLength, kTimeout)) {}
+    explicit DfPlayer(UART_HandleTypeDef* uart)
+        : serialPort(std::make_unique<SerialPort>(uart, kBaudRate, kLength, kTimeout)) {}
 
     ~DfPlayer() = default;
 
@@ -49,6 +50,7 @@ private:
         kQueryFlashCurrentTrack  = 0x4D,
     };
 
+    static constexpr uint32_t kBaudRate = 9600;
     static constexpr uint32_t kLength   = 128;
     static constexpr uint32_t kTimeout  = 10;
     std::unique_ptr<SerialPort> serialPort;

Core/App/Common/hc05.hpp

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <cerrno>
+#include <cstdint>
+
+#include "../Common/serial_port.hpp"
+
+class Hc05 {
+private:
+    static constexpr uint32_t kBaudRate = 9600;
+    static constexpr uint32_t kLength   = 128;
+    static constexpr uint32_t kTimeout  = 10;
+    std::unique_ptr<SerialPort> serialPort;
+
+    static constexpr uint8_t kCommand = 0xAA;
+
+public:
+    // App 返回单个字节 Command 结果
+    enum class Response : uint8_t {
+        kForward, // 前进
+        kBackward, // 后退
+        kTurnLeft, // 左转
+        kTurnRight, // 右转
+        kForwardLeft, // 左前方
+        kForwardRight, // 右前方
+        kBackwardLeft, // 左后方
+        kBackwardRight, // 右后方
+        kTurnAround, // 掉头/180度转向
+        kStop, // 停止，到达目的地
+    };
+
+    explicit Hc05(UART_HandleTypeDef* uart)
+        : serialPort(std::make_unique<SerialPort>(uart, kBaudRate, kLength, kTimeout)) {}
+
+    ~Hc05() = default;
+
+    Response SendCommand() {
+        Response data;
+        serialPort->WriteBytesBlocking(reinterpret_cast<const uint8_t*>(&kCommand), sizeof(kCommand));
+        serialPort->ReadBytesBlocking(reinterpret_cast<uint8_t*>(&data), sizeof(data));
+        return data;
+    }
+};

Core/App/Common/key.hpp

@@ -0,0 +1,31 @@
+#pragma once
+
+#include "../Helper/delay_helper.h"
+#include "stm32h5xx_hal_gpio.h"
+#include <cstdint>
+
+#include "../Helper/gpio_helper.hpp"
+
+class Key {
+private:
+    static constexpr uint32_t kDebounceDelay = 20;
+    GpioHelper::Gpio gpio;
+    GPIO_PinState normalStatus;
+
+public:
+    explicit Key(GpioHelper::Gpio gpio, GPIO_PinState normalStatus) : gpio(gpio), normalStatus(normalStatus) {
+        GpioHelper::GpioInit(gpio, GPIO_MODE_INPUT, normalStatus ? GPIO_PULLUP : GPIO_PULLDOWN);
+    }
+
+    bool IsPressed() {
+        auto reading = gpio.Read();
+        if (reading != normalStatus) {
+            DelayMs(kDebounceDelay);
+            reading = gpio.Read();
+            if (reading != normalStatus) {
+                return true;
+            }
+        }
+        return false;
+    }
+};

Core/App/Common/serial_port.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "main.h"
+#include "stm32h5xx_hal_uart.h"
 #include <cstdarg>
 #include <cstdint>
 #include <cstring>
@@ -13,21 +14,29 @@ private:
     uint32_t timeout;
     std::unique_ptr<char[]> buffer;
 
+    uint8_t ReadByteForce() {
+        return handle->Instance->RDR;
+    }
+
 public:
-    SerialPort(UART_HandleTypeDef* uart, uint32_t length, uint32_t timeout)
+    SerialPort(UART_HandleTypeDef* uart, uint32_t baudRate, uint32_t length, uint32_t timeout)
-        : handle(uart), timeout(timeout), buffer(std::make_unique<char[]>(length)) {}
+        : handle(uart), timeout(timeout), buffer(std::make_unique<char[]>(length)) {
+        SetBaudRate(baudRate);
+    }
 
     ~SerialPort() = default;
 
-    uint8_t ReadByte() {
+    void SetBaudRate(uint32_t baudRate) {
-        return handle->Instance->RDR;
+        HAL_UART_DeInit(handle);
+        handle->Init.BaudRate = baudRate;
+        HAL_UART_Init(handle);
     }
 
     std::string ReadLine() {
         std::string result;
         result.reserve(128);
         char c;
-        ReadByte();
+        ReadByteForce();
         while (true) {
             auto r = HAL_UART_Receive(handle, reinterpret_cast<uint8_t*>(&c), sizeof(c), timeout);
             if (r != HAL_OK) {

Core/App/Helper/gpio_helper.hpp

@@ -56,7 +56,8 @@ public:
         return {port, pin};
     }
 
-    static Gpio GpioInit(const Gpio& gpio, const uint32_t mode, const uint32_t pull, const GPIO_PinState state) {
+    static Gpio GpioInit(const Gpio& gpio, const uint32_t mode, const uint32_t pull,
+        const std::optional<GPIO_PinState> state = std::nullopt) {
         return GpioInit(gpio.port, gpio.pin, mode, pull, state);
     }
 

Core/App/app.cpp

@@ -42,6 +42,7 @@ void CommonSetup() {
     CommonCenter::GetDfPlayer();
     CommonCenter::GetCanMv();
     CommonCenter::GetDebugSerialPort();
+    CommonCenter::GetHc05();
 }
 
 void Setup() {

Core/App/config.hpp

@@ -18,5 +18,7 @@ struct Config {
 
     static inline UART_HandleTypeDef* kCanMvUart = &hcom_uart[COM1];
 
+    static inline UART_HandleTypeDef* kHc05Uart = &hcom_uart[COM1];
+
     static inline GpioHelper::Gpio kLed = {GPIOB, GPIO_PIN_0};
 };