C++ (Cpp) DHT11_Rst Examples

Example #1

File: DHT11.c Project: wangeshen/MICO

uint8_t DHT11_Init(void)
{	 
  DHT11_IO_OUT();
  
  DHT11_Rst();  
  return DHT11_Check();
} 

Example #2

File: dht11.c Project: alloevil/A-embedded-image-processing-platform--

//初始化DHT11的IO口 DQ 同时检测DHT11的存在
//返回1:不存在
//返回0:存在    	 
u8 DHT11_Init(void)
{
	RCC->APB2ENR|=1<<8;    //使能PORTG口时钟 
	GPIOG->CRH&=0XFFFF0FFF;//PORTG.11 推挽输出
	GPIOG->CRH|=0X00003000;
	GPIOG->ODR|=1<<11;      //输出1				    
	DHT11_Rst();
	return DHT11_Check();
}

Example #3

File: hal_temp_hum.c Project: powerorigin/nethub

u8 DHT11_Init(void)
{	 
 	GPIO_InitTypeDef  GPIO_InitStructure;
 	
 	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);	 
	
 	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;				 
 	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 		 
 	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
 	GPIO_Init(GPIOB, &GPIO_InitStructure);				 
 	GPIO_SetBits(GPIOB,GPIO_Pin_5);						 
			    
	DHT11_Rst();  
	return DHT11_Check();
} 

Example #4

File: hal_temp_hum.c Project: Adamwuming/gokit-mcu-hw2

u8 DHT11_Init(void)
{
    GPIO_InitTypeDef  GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
    GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);
    GPIO_SetBits(GPIOB,GPIO_Pin_3);

    DHT11_Rst();
    return DHT11_Check();
}

Example #5

File: dht11.c Project: alloevil/A-embedded-image-processing-platform--

//从DHT11读取一次数据
//temp:温度值(范围:0~50°)
//humi:湿度值(范围:20%~90%)
//返回值：0,正常;1,读取失败
u8 DHT11_Read_Data(u8 *temp,u8 *humi)    
{        
 	u8 buf[5];
	u8 i;
	DHT11_Rst();
	if(DHT11_Check()==0)
	{
		for(i=0;i<5;i++)//读取40位数据
		{
			buf[i]=DHT11_Read_Byte();
		}
		if((buf[0]+buf[1]+buf[2]+buf[3])==buf[4])
		{
			*humi=buf[0];
			*temp=buf[2];
		}
	}else return 1;
	return 0;	    
}

Example #6

File: hal_temp_hum.c Project: powerorigin/nethub

u8 DHT11_Read_Data(u8 *temperature,u8 *humidity)    
{        
 	u8 buf[5];
	u8 i;
	DHT11_Rst();
	if(DHT11_Check()==0)
	{
		for(i=0;i<5;i++)
		{
			buf[i]=DHT11_Read_Byte();
		}
		if((buf[0]+buf[1]+buf[2]+buf[3])==buf[4])
		{
			*humidity=buf[0];
			*temperature=buf[2];
		}
	}
	else 
		return 1;
	
	return 0;	    
}

Example #7

File: DHT11.c Project: SergeyPopovGit/MICO

uint8_t DHT11_Read_Data(uint8_t *temperature,uint8_t *humidity)    
{        
  uint8_t buf[5];
  uint8_t i;
  DHT11_Rst();
  if(DHT11_Check()==0)
  {
    for(i=0;i<5;i++)
    {
      buf[i]=DHT11_Read_Byte();
    }
    if((buf[0]+buf[1]+buf[2]+buf[3])==buf[4])
    {
      *humidity=buf[0];
      *temperature=buf[2];
    }
  }
  else {
    return 1;
  }
  
  return 0;	    
}

Example #8

File: dht11.c Project: zthxxx/STM32-Contiki_Sensor_Smart_Home

//从DHT11读取一次数据
//temp:温度值(范围:0~50°)
//humi:湿度值(范围:20%~90%)
//返回值：0,正常;1,读取失败
uint8_t DHT11_Read_Data(uint8_t *temp,uint8_t *temp0,uint8_t *humi,uint8_t *humi0)    
{        
 	uint8_t buf[5];
	uint8_t i;
    
    DHT11_Init();
    
	DHT11_Rst();
	if(DHT11_Check()==0)
	{
		for(i=0;i<5;i++)//读取40位数据
		{
			buf[i]=DHT11_Read_Byte();
		}
		if((buf[0]+buf[1]+buf[2]+buf[3])==buf[4])
		{
			*humi=buf[0];
			*humi0=buf[1];
			*temp=buf[2];
			*temp0=buf[3];
		}
	}else return 1;
	return 0;	    
}