写一个在rtthread操作系统上的 基于K210开发板的DHT11型号的温湿度传感器驱动函数

好的，以下是一个基于K210开发板的DHT11型号的温湿度传感器驱动函数的示例代码：

#include <rtthread.h>
#include <board.h>
#include "dht11.h"

#define DHT11_PIN GET_PIN(C, 5)

static rt_err_t dht11_read_pin(rt_base_t pin)
{
    rt_uint32_t count = 0;
    rt_base_t level;

    level = rt_pin_read(pin);
    while (level == PIN_HIGH)
    {
        rt_thread_mdelay(1);
        count++;
        if (count > 1000)
            return -RT_ERROR;
        level = rt_pin_read(pin);
    }

    count = 0;
    while (level == PIN_LOW)
    {
        rt_thread_mdelay(1);
        count++;
        if (count > 1000)
            return -RT_ERROR;
        level = rt_pin_read(pin);
    }

    return RT_EOK;
}

static rt_err_t dht11_read_data(rt_base_t pin, rt_uint8_t* data)
{
    rt_uint8_t i, j;
    rt_uint8_t temp = 0;

    rt_pin_mode(pin, PIN_MODE_OUTPUT);
    rt_pin_write(pin, PIN_LOW);
    rt_thread_mdelay(18);
    rt_pin_write(pin, PIN_HIGH);
    rt_thread_udelay(40);
    rt_pin_mode(pin, PIN_MODE_INPUT);

    if (dht11_read_pin(pin) != RT_EOK)
        return -RT_ERROR;

    for (j = 0; j < 5; j++)
    {
        for (i = 0; i < 8; i++)
        {
            if (dht11_read_pin(pin) != RT_EOK)
                return -RT_ERROR;

            rt_thread_udelay(30);

            if (rt_pin_read(pin) == PIN_HIGH)
                temp |= (1 << (7 - i));
        }

        data[j] = temp;
        temp = 0;
    }

    return RT_EOK;
}

void dht11_thread_entry(void* parameter)
{
    rt_uint8_t data[5];
    rt_uint16_t humidity, temperature;

    rt_pin_mode(DHT11_PIN, PIN_MODE_OUTPUT);
    rt_pin_write(DHT11_PIN, PIN_HIGH);

    while (1)
    {
        rt_thread_mdelay(2000);

        if (dht11_read_data(DHT11_PIN, data) == RT_EOK)
        {
            humidity = data[0];
            temperature = data[2];

            rt_kprintf("Humidity: %d.%d%%RH, Temperature: %d.%d℃\n",
                humidity / 10, humidity % 10,
                temperature / 10, temperature % 10);
        }
        else
        {
            rt_kprintf("Failed to read data from DHT11.\n");
        }
    }
}

在这个例子中，我们使用了GPIO C5来连接DHT11传感器。首先，我们定义了`dht11_read_pin`函数和`dht11_read_data`函数来读取DHT11传感器的数据。然后，在主线程中，我们使用`dht11_read_data`函数来读取温湿度数据，并将结果打印到控制台上。如果读取失败，我们将打印一条错误消息。

请注意，这只是一个示例代码，需要根据实际情况进行修改和适配。