帮我完成代码用stm32F103C8T6读取DHT11温湿度

当使用 STM32F103C8T6 控制器读取 DHT11 温湿度传感器时，需要先配置相应的 GPIO 引脚作为输入和输出，并设置相应的延时函数。以下是一个示例代码，用于读取 DHT11 的温湿度数据：

#include "stm32f10x.h"

#define DHT11_PIN GPIO_Pin_0
#define DHT11_PORT GPIOA

void Delay_us(uint32_t us) {
    us *= (SystemCoreClock / 1000000) / 9;
    while (us--) {
        __NOP();
    }
}

void DHT11_Init(void) {
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

    GPIO_InitStructure.GPIO_Pin = DHT11_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out

相关问题

STM32F103C8T6读取DHT11温湿度代码如何编写

以下是一个简单的STM32F103C8T6读取DHT11温湿度的代码示例：

#include "stm32f10x.h"

#define DHT11_GPIO GPIOB
#define DHT11_PIN GPIO_Pin_8

void delay_us(uint32_t us) {
    SysTick->LOAD = us * 9;
    SysTick->VAL = 0;
    SysTick->CTRL = SysTick_CTRL_ENABLE_Msk;

    while(!(SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk));
}

void DHT11_start(void) {
    GPIO_InitTypeDef GPIO_InitStruct;

    GPIO_InitStruct.GPIO_Pin = DHT11_PIN;
    GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_Init(DHT11_GPIO, &GPIO_InitStruct);

    GPIO_ResetBits(DHT11_GPIO, DHT11_PIN);
    delay_us(18000);
    GPIO_SetBits(DHT11_GPIO, DHT11_PIN);
    delay_us(40);
}

uint8_t DHT11_read_bit(void) {
    uint8_t result;

    GPIO_InitTypeDef GPIO_InitStruct;

    GPIO_InitStruct.GPIO_Pin = DHT11_PIN;
    GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_Init(DHT11_GPIO, &GPIO_InitStruct);

    GPIO_ResetBits(DHT11_GPIO, DHT11_PIN);
    delay_us(40);
    GPIO_SetBits(DHT11_GPIO, DHT11_PIN);
    delay_us(10);

    GPIO_InitStruct.GPIO_Pin = DHT11_PIN;
    GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU;
    GPIO_Init(DHT11_GPIO, &GPIO_InitStruct);

    delay_us(10);

    result = GPIO_ReadInputDataBit(DHT11_GPIO, DHT11_PIN);

    while(GPIO_ReadInputDataBit(DHT11_GPIO, DHT11_PIN));

    return result;
}

uint8_t DHT11_read_byte(void) {
    uint8_t i, result = 0;

    for(i = 0; i < 8; i++) {
        result <<= 1;
        result |= DHT11_read_bit();
    }

    return result;
}

uint8_t DHT11_read_data(uint8_t *data) {
    uint8_t i;

    DHT11_start();

    if(GPIO_ReadInputDataBit(DHT11_GPIO, DHT11_PIN)) {
        return 0;
    }

    while(!GPIO_ReadInputDataBit(DHT11_GPIO, DHT11_PIN));

    while(GPIO_ReadInputDataBit(DHT11_GPIO, DHT11_PIN));

    for(i = 0; i < 5; i++) {
        data[i] = DHT11_read_byte();
    }

    if(data[4] == (data[0] + data[1] + data[2] + data[3])) {
        return 1;
    } else {
        return 0;
    }
}

int main(void) {
    uint8_t data[5];

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

    while(1) {
        if(DHT11_read_data(data)) {
            printf("Temperature: %d.%dC, Humidity: %d.%d%%\n", data[2], data[3], data[0], data[1]);
        } else {
            printf("Read error!\n");
        }

        delay_us(2000000);
    }
}

需要注意的是，这只是一个简单的示例，并不能保证100%的准确性。实际应用中，还需要进行更多的优化和测试。

写代码，stm32f103C8T6实现DHT11温湿度传感器的数据读取并且串口输出

好的，我可以帮您解决这个问题。以下是实现DHT11温湿度传感器的数据读取并且串口输出的 stm32f103C8T6 代码（使用了HAL库）：

#include "stm32f1xx_hal.h"

#define DHT11_GPIO_PORT  GPIOA
#define DHT11_GPIO_PIN   GPIO_PIN_0

void DHT11_start(void);
uint8_t DHT11_check(void);
uint8_t DHT11_read(void);

int main(void)
{
    HAL_Init();
    __HAL_RCC_GPIOA_CLK_ENABLE();
    __HAL_RCC_USART1_CLK_ENABLE();
    
    GPIO_InitTypeDef GPIO_InitStruct;
    GPIO_InitStruct.Pin = DHT11_GPIO_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    HAL_GPIO_Init(DHT11_GPIO_PORT, &GPIO_InitStruct);
    
    USART_HandleTypeDef USART_Handler;
    USART_Handler.Instance = USART1;
    USART_Handler.Init.BaudRate = 9600;
    USART_Handler.Init.WordLength = USART_WORDLENGTH_8B;
    USART_Handler.Init.StopBits = USART_STOPBITS_1;
    USART_Handler.Init.Parity = USART_PARITY_NONE;
    USART_Handler.Init.Mode = USART_MODE_TX;
    USART_Handler.Init.HwFlowCtl = USART_HWCONTROL_NONE;
    USART_Handler.Init.OverSampling = USART_OVERSAMPLING_16;
    HAL_USART_Init(&USART_Handler);
    
    while (1)
    {
        DHT11_start();
        if (DHT11_check())
        {
            uint8_t h = DHT11_read();
            uint8_t l = DHT11_read();
            uint8_t sum = DHT11_read();
            if (sum == h + l)
            {
                char buf[20];
                sprintf(buf, "Humidity: %d%%\r\n", h);
                HAL_USART_Transmit(&USART_Handler, (uint8_t *)buf, strlen(buf), HAL_MAX_DELAY);
                sprintf(buf, "Temperature: %dC\r\n", l);
                HAL_USART_Transmit(&USART_Handler, (uint8_t *)buf, strlen(buf), HAL_MAX_DELAY);
            }
        }
        HAL_Delay(2000);
    }
}

void DHT11_start(void)
{
    HAL_GPIO_WritePin(DHT11_GPIO_PORT, DHT11_GPIO_PIN, GPIO_PIN_RESET);
    HAL_Delay(18);
    HAL_GPIO_WritePin(DHT11_GPIO_PORT, DHT11_GPIO_PIN, GPIO_PIN_SET);
    HAL_Delay(40);
    HAL_GPIO_WritePin(DHT11_GPIO_PORT, DHT11_GPIO_PIN, GPIO_PIN_RESET);
    HAL_Delay(80);
}

uint8_t DHT11_check(void)
{
    uint8_t response = 0;
    HAL_GPIO_WritePin(DHT11_GPIO_PORT, DHT11_GPIO_PIN, GPIO_PIN_SET);
    HAL_Delay(30);
    if (HAL_GPIO_ReadPin(DHT11_GPIO_PORT, DHT11_GPIO_PIN) == GPIO_PIN_RESET)
    {
        while (!response && HAL_GPIO_ReadPin(DHT11_GPIO_PORT, DHT11_GPIO_PIN) != GPIO_PIN_SET)
        {
            response = 1;
        }
        while (response && HAL_GPIO_ReadPin(DHT11_GPIO_PORT, DHT11_GPIO_PIN) == GPIO_PIN_SET)
        {
            response = 0;
        }
    }
    return response;
}

uint8_t DHT11_read(void)
{
    uint8_t data = 0;
    for (int i = 7; i >= 0; i--)
    {
        while (HAL_GPIO_ReadPin(DHT11_GPIO_PORT, DHT11_GPIO_PIN) == GPIO_PIN_RESET);
        HAL_Delay(30);
        if (HAL_GPIO_ReadPin(DHT11_GPIO_PORT, DHT11_GPIO_PIN) == GPIO_PIN_SET)
        {
            data |= (1 << i);
        }
        while (HAL_GPIO_ReadPin(DHT11_GPIO_PORT, DHT11_GPIO_PIN) == GPIO_PIN_SET);
    }
    return data;
}

请注意，在这个代码中，我没有使用 ChitGPT 进行对话，因为这段代码不需要与机器人进行交互。