智能車dht11模塊程序DHT11對(duì)時(shí)鐘要求特別高以下兩個(gè)

22.1184MHz；11.0592MHz， DHT11//單片機(jī)：AT89S52或//功 ：串口發(fā)送溫濕度數(shù)據(jù)晶振#include<reg52.h> IO口定義 =P2^0 定義 unsigned unsignedcharstr[5];voidDelay2(unsignedint unsignedinti;{}} { for(i=16;i>0;i--);}unsignedchar{unsignedchar data;{for00 data}//-----濕度子程序-----------8U8T_data_H8U8T_data_L8U8RH_data_H8U8RH_data_L//----校驗(yàn)8U8checkdata//----Delay();, void{ 20us //T//判斷從機(jī)是否發(fā)出80us//判斷從機(jī)是否發(fā)出80usU8RH_data_H_temp=U8RH_data_L_temp=COM(); {}//main()功能描述 串口//送溫濕度數(shù)據(jù),波特率void{ 100US（22.1184M{//調(diào)用溫濕度子程//模塊數(shù)據(jù)周期不易小于2S}} DHT11//單片機(jī)：AT89S52或//功 ：串口發(fā)送溫濕度數(shù)據(jù)晶振11.0592M波特率P2.0DHT11,DHT11MAX232//公 ：電#include<reg51.h>#include<intrins.h>typedefunsignedchar /*definedforunsigned8-bitsintegervariable 8位整型變量*/typedefsigned charS8; /*definedforsigned8-bitsinteger 8位整型變量*/typedefunsignedint /*definedforunsigned16-bitsintegervariable 16*/typedefsigned /*definedforsigned16-bitsinteger 16*/typedefunsignedlong /*definedforunsigned32-bitsintegervariable 32*/typedefsigned /*definedforsigned32-bitsinteger 32*/typedeffloat /*singleprecisionfloatingpointvariable(32bits)單精度浮點(diǎn)數(shù)（32）*/typedefdouble /*doubleprecisionfloatingpointvariable(64bits)雙精度浮點(diǎn)數(shù)（64）*/#defineucharunsignedchar#defineuintunsignedint IO口定義 =P2^0

定義 count,count_r=0; U16U16temp1,U16temp2;SendData(U8*a){outdata[0]=outdata[1]=outdata[2]=outdata[3]=outdata[4]=a[4];count=1;}voidDelay(U16 U8for(;j>0;j--{}} {U8i;i--i--i--i--i--} {U8{for00 }//-----濕度子程序-----------8U8T_data_H8U8T_data_L8U8RH_data_H8U8RH_data_L//----校驗(yàn)8U8checkdata//----Delay();, void{20us //T//判斷從機(jī)是否發(fā)出80us//判斷從機(jī)是否發(fā)出80us {}//main()功能描述 串口//送溫濕度數(shù)據(jù),波特率void{// //uchar/*系統(tǒng)初始化TMOD=0x20; //定時(shí)器T1使用工作方式2TH1=253; //設(shè)置初值TL1=TR1= SCON=0x50; 1，9600bps，允許接收ES=1;EA= TI=RI=SendData(str); //延時(shí)100US（12M晶振){//調(diào)用溫濕度子程SendData(str) //模塊數(shù)據(jù)周期不易小于2S}//voidRSINTR()interr