标题:
51单片机的DHT11去湿灯及温度上限和湿度上限设定值的源码
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作者:
wsceng
时间:
2018-5-16 09:52
标题:
51单片机的DHT11去湿灯及温度上限和湿度上限设定值的源码
51单片机的I2C例程
单片机源程序如下:
#include <reg52.h>
#include "1602.h"
#include "dht.h"
//#include "2402.h"
//定义三个LED灯
//sbit Led_qushi=P1^6; //去湿灯
//sbit Led_jiangwen=P1^5; //降温灯
//sbit Led_shengwen=P1^4; //升温灯
//sbit Key_TH1 = P3^2;
//sbit Key_TH2 = P3^3;
//sbit Key_HH1 = P3^4;
//sbit Key_HH2 = P3^5
sbit BUZZER = P1^5; //蜂鸣器端口
//定义标识
volatile bit FlagStartRH = 0; //开始温湿度转换标志
//volatile bit FlagKeyPress = 0; //有键按下
//定义温湿度传感器用外部变量
extern U8 U8FLAG,k;
extern U8 U8count,U8temp;
extern U8 U8T_data_H,U8T_data_L,U8RH_data_H,U8RH_data_L,U8checkdata;
extern U8 U8T_data_H_temp,U8T_data_L_temp,U8RH_data_H_temp,U8RH_data_L_temp,U8checkdata_temp;
extern U8 U8comdata;
extern U8 count, count_r;
U16 temp;
S16 temperature, humidity;
S16 idata TH, HH; //温度上限和湿度上限
char * pSave;
//U8 keyvalue, keyTH1, keyTH2, keyHH1, keyHH2;
//定义变量
U16 RHCounter;
//数据初始化
void Data_Init()
{
RHCounter = 0;
// Led_qushi = 1;
// Led_jiangwen = 1;
// Led_shengwen = 1;
BUZZER = 1;
TH = 40;
HH = 85;
// keyvalue = 0;
// keyTH1 = 1;
// keyTH2 = 1;
// keyHH1 = 1;
// keyHH2 = 1;
}
//定时器0初始化
void Timer0_Init()
{
ET0 = 1; //允许定时器0中断
TMOD = 1; //定时器工作方式选择
TL0 = 0x06;
TH0 = 0xf8; //定时器赋予初值
TR0 = 1; //启动定时器
}
//定时器0中断
void Timer0_ISR (void) interrupt 1 using 0
{
TL0 = 0x06;
TH0 = 0xf8; //定时器赋予初值
//每2秒钟启动一次温湿度转换
RHCounter ++;
if (RHCounter >= 1000)
{
FlagStartRH = 1;
RHCounter = 0;
}
}
//存入设定值、
//void Save_Setting()
//{
// pSave = (char *)&TH; //地址低位对应低8位,高位对应高8位
// wrteeprom(0, *pSave); //存温度上限值TH低8位
// DELAY(500);
// pSave ++;
// wrteeprom(1, *pSave); //存温度上限值TH高8位
// DELAY(500);
// pSave = (char *)&HH;
// wrteeprom(2, *pSave); //存湿度上限值RH低8位
// DELAY(500);
// pSave ++;
// wrteeprom(3, *pSave); //存湿度上限值RH高8位
// DELAY(500);
//}
//载入设定值、
//void Load_Setting()
//{
// pSave = (char *)&TH;
// *pSave++ = rdeeprom(0);
// *pSave = rdeeprom(1);
// pSave = (char *)&HH;
// *pSave++ = rdeeprom(2);
// *pSave = rdeeprom(3);
// if ((TH>99)||(TH<0)) TH = 40;
// if ((HH>99)||(HH<0)) HH = 85;
//}
//void KeyProcess(uint num)
//{
// switch (num)
// {
// case 1:
// if (TH<99) TH++;
// L1602_char(1, 15, TH/10+48);
// L1602_char(1, 16, TH%10+48);
// break;
// case 2:
// if (TH>1) TH--;
// L1602_char(1, 15, TH/10+48);
// L1602_char(1, 16, TH%10+48);
// break;
// case 3:
// if (HH<99) HH++;
// L1602_char(2, 15, HH/10+48);
// L1602_char(2, 16, HH%10+48);
// break;
// case 4:
// if (HH>1) HH--;
// L1602_char(2, 15, HH/10+48);
// L1602_char(2, 16, HH%10+48);
// break;
// default:
// break;
// }
// Save_Setting();
//}
/********************************************************************
* 名称 : Main()
* 功能 : 主函数
***********************************************************************/
void main()
{
U16 i, j, testnum;
EA = 0;
Timer0_Init(); //定时器0初始化
Data_Init();
EA = 1;
L1602_init();
L1602_string(1,1," Welcome to T&H ");
L1602_string(2,1," Control System! ");
//延时
for (i=0;i<1000;i++)
for (j=0;j<1000;j++)
{;}
//清屏
L1602_string(1,1," ");
L1602_string(2,1," ");
L1602_string(1,1,"Tem: C TH:");
L1602_string(2,1,"Hum: % HH:");
// //载入温度上限和湿度上限设定值
// Load_Setting();
// L1602_char(1, 15, TH/10+48);
// L1602_char(1, 16, TH%10+48);
// L1602_char(2, 15, HH/10+48);
// L1602_char(2, 16, HH%10+48);
BUZZER = 0;
while(1)
{
//温湿度转换标志检查
if (FlagStartRH == 1)
{
TR0 = 0;
testnum = RH();
FlagStartRH = 0;
TR0 = 1;
//读出温湿度,只取整数部分
humidity = U8RH_data_H;
temperature = U8T_data_H;
//显示温湿度
L1602_int(1,5,temperature);
L1602_int(2,5,humidity);
}
//温湿度控制
// if (temperature > TH) Led_jiangwen = 0;
// else Led_jiangwen = 1; //降温
// if (humidity > HH) Led_qushi = 0;
// else Led_qushi = 1; //去湿
//
//键盘查询,在弹起时响应
// if ((Key_TH1)&&(keyTH1==0)) {FlagKeyPress = 1; keyvalue = 1;}
// else if ((Key_TH2)&&(keyTH2==0)) {FlagKeyPress = 1; keyvalue = 2;}
// else if ((Key_HH1)&&(keyHH1==0)) {FlagKeyPress = 1; keyvalue = 3;}
// else if ((Key_HH2)&&(keyHH2==0)) {FlagKeyPress = 1; keyvalue = 4;}
// if (FlagKeyPress == 1)
// {
// KeyProcess(keyvalue);
// FlagKeyPress = 0;
// }
// if (!Key_TH1) keyTH1 = 0;
// else keyTH1 = 1;
// if (!Key_TH2) keyTH2 = 0;
// else keyTH2 = 1;
// if (!Key_HH1) keyHH1 = 0;
// else keyHH1 = 1;
// if (!Key_HH2) keyHH2 = 0;
// else keyHH2 = 1;
}
}
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