stm32f103c8t6蓝牙HC05控制LED代码

好的，以下是一个简单的示例代码，可以通过蓝牙模块HC05控制STM32F103C8T6上的LED灯：

#include "stm32f10x.h"
#include <string.h>

#define LED_PIN   GPIO_Pin_12
#define LED_PORT  GPIOB

#define USART_RX_PIN   GPIO_Pin_11
#define USART_TX_PIN   GPIO_Pin_10
#define USART_GPIO     GPIOA
#define USART         USART1
#define USART_IRQn    USART1_IRQn

void GPIO_Configuration(void);
void USART_Configuration(void);
void NVIC_Configuration(void);

void delay_ms(uint32_t ms);

int main(void)
{
    char buf[10];
    uint8_t len = 0;

    GPIO_Configuration();
    USART_Configuration();
    NVIC_Configuration();

    while (1) {
        if (USART_GetFlagStatus(USART, USART_FLAG_RXNE)) {
            buf[len++] = USART_ReceiveData(USART);
            if (buf[len - 1] == '\n') {
                buf[len - 1] = '\0';
                len = 0;
                if (strcmp(buf, "on") == 0) {
                    GPIO_WriteBit(LED_PORT, LED_PIN, Bit_SET);
                } else if (strcmp(buf, "off") == 0) {
                    GPIO_WriteBit(LED_PORT, LED_PIN, Bit_RESET);
                }
            }
        }
    }
}

void GPIO_Configuration(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

    GPIO_InitStructure.GPIO_Pin = LED_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(LED_PORT, &GPIO_InitStructure);
}

void USART_Configuration(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    USART_InitTypeDef USART_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA, ENABLE);

    GPIO_InitStructure.GPIO_Pin = USART_TX_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(USART_GPIO, &GPIO_InitStructure);

    GPIO_InitStructure.GPIO_Pin = USART_RX_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(USART_GPIO, &GPIO_InitStructure);

    USART_InitStructure.USART_BaudRate = 9600;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_Init(USART, &USART_InitStructure);

    USART_Cmd(USART, ENABLE);
}

void NVIC_Configuration(void)
{
    NVIC_InitTypeDef NVIC_InitStructure;

    NVIC_InitStructure.NVIC_IRQChannel = USART_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);

    USART_ITConfig(USART, USART_IT_RXNE, ENABLE);
}

void USART1_IRQHandler(void)
{
    if (USART_GetFlagStatus(USART, USART_FLAG_RXNE) == SET) {
        USART_ClearFlag(USART, USART_FLAG_RXNE);
    }
}

void delay_ms(uint32_t ms)
{
    uint32_t i, j;
    for (i = 0; i < ms; i++) {
        for (j = 0; j < 7200; j++);
    }
}

在这个示例代码中，我们通过USART1接口来接收蓝牙模块发送的数据。当收到一行数据时，我们将其解析，根据指令控制LED灯的开关状态。

需要注意的是，这个示例代码中只是简单的实现了控制LED灯开关的功能，如果你需要更加复杂的功能，还需要根据实际情况进行修改和扩展。