基于DHT11的温湿计设计 OLED12864显示 -

#include<STC15.H>
#include "intrins.h"
#include "OLED_Contrul_Hygrothermograph.c"
sbit YLED=P3^1;
sbit RLED=P3^0;
sbit DHT=P3^5;
unsigned int Temperature[3]={1,1,1};
unsigned int Humidity[2]={1,1};
unsigned char Data_Receive[5];
/*#################################################################################
设计名称：基于DHT11的温湿度计（Hygrothermograph）
设计者：清河
平台：STC15F104W
硬件部分
显示：采用OLED12864显示温度和湿度
测量，采用DHT11模块，模块信息如下：
ASATR
-----
NA:DHT11
OC:3.3-5.5V
U1:5-95%RH
U2:-20-60℃
U3:±5%RH±2℃
SN:A1712882A
为保证延时准确，晶振设置为12MHz
借用了<a href="http://www.51hei.com/bbs/dpj-38067-1.html" target="_blank">http://www.51hei.com/bbs/dpj-38067-1.html</a>上的部分程序，在此表示感谢
#################################################################################*/
void Delay30us()
{unsigned char i;i=87;while(--i);}
void Delay20ms()
{unsigned char i,j,k;i=1;j=234;k=113;do{do{while(--k);}while(--j);}while(--i);}
void Delay1s()
{unsigned char i,j,k;i=46;j=153;k=245;do{do{while(--k);}while(--j);}while(--i);}
void OLED_Display()
{OLED_DataDisplay_T(56,4,Temperature);OLED_DataDisplay_H(56,6,Humidity);}
void DHT_Collect()
{unsigned char i,j;unsigned char t;unsigned char dat8=0;unsigned int CheckValue=0;
DHT=0;Delay20ms();DHT=1;Delay30us();
t=80;while(DHT&&t--);if(t==0){DHT=1;}t=250;while(!DHT&&t--);
if(t==0){DHT=1;}t=250;while(DHT&&t--);if(t==0){DHT=1;}
for(j=0;j<5;j++)
{for(i=0;i<8;i++){t=150;while(!DHT&&t--);if(t==0){DHT=1;}t=0;
while(DHT&&++t);dat8<<=1;if(t>30)dat8+=1;}Data_Receive[j]=dat8;}
Delay30us();Delay30us();DHT=1;
for(i=0;i<4;i++){CheckValue+=Data_Receive[i];}
if((unsigned char)CheckValue==Data_Receive[4])
{Temperature[0]=Data_Receive[2]/10;Temperature[1]=Data_Receive[2]%10;Temperature[2]=Data_Receive[3]%10;
Humidity[0]=Data_Receive[0]/10;Humidity[1]=Data_Receive[0]%10;}}
void sys_init()
{YLED=1;RLED=1;OLED_Init();OLED_CLS();
OLED_FormTitle(0,0);OLED_FormName(0,2);OLED_FormLine(0,3);OLED_FormTemp(8,4);OLED_FormHumi(16,6);
OLED_AnyChar_16X16(96,4,TempChar);OLED_AnyChar_8X16(88,6,HumiChar);OLED_AnyChar_8X16(72,4,PointChar);}
void main()
{sys_init();while(1){DHT_Collect();YLED=1;RLED=0;OLED_Display();RLED=1;YLED=0;Delay1s();Delay1s();}}

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