stm32 dht11的代码

以下是一个简单的stm32 dht11代码示例，仅供参考：

#include "stm32f10x.h"
#include "delay.h"
#include "dht11.h"

int main(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    USART_InitTypeDef USART_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1, ENABLE);    //开启GPIOA和USART1的时钟

    //配置USART1
    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_Mode = USART_Mode_Tx;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_Init(USART1, &USART_InitStructure);

    //配置GPIO，PA4为DHT11数据线
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    //初始化DHT11
    DHT11_Init();

    while (1)
    {
        uint8_t temperature, humidity;	//定义温度和湿度变量

        if (DHT11_Read_Data(&temperature, &humidity) == SUCCESS)	//成功读取到数据
        {
            //向串口1输出温湿度值
            USART_SendData(USART1, temperature);
            delay_us(1000);
            USART_SendData(USART1, humidity);
            delay_ms(2000);
        }
        else	//未能成功读取到数据
        {
            USART_SendData(USART1, 'E');	//向串口1输出错误信息
            delay_ms(2000);
        }
    }
}