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#include "common.h"
#include "lcd1602.h"
#include "dht.h"
extern unsigned char U8RH_data_H;
extern unsigned char U8T_data_H;
sbit key1 = P1^0;//設(shè)置鍵
sbit key2 = P1^1;//加鍵
sbit key3 = P1^2;//減鍵
sbit relay1 = P1^6;//加熱繼電器
sbit relay2 = P1^7;//降溫繼電器
sbit relay3 = P3^6;//加濕繼電器
sbit relay4 = P3^7;//除濕繼電器
sbit beep = P2^0;//蜂鳴器
unsigned char tl = 10,th = 35,hl = 15,hh = 70;//溫濕度上下限初始值
unsigned char setn = 0;//設(shè)置標(biāo)志
void display_alarm()//顯示報(bào)警值
{
lcd_write_char(4,0,tl/10+0x30);
lcd_write_char(5,0,tl%10+0x30);
lcd_write_char(13,0,th/10+0x30);
lcd_write_char(14,0,th%10+0x30);
lcd_write_char(4,1,hl/10+0x30);
lcd_write_char(5,1,hl%10+0x30);
lcd_write_char(13,1,hh/10+0x30);
lcd_write_char(14,1,hh%10+0x30);
}
void keyscan()
{
if(key1 == 0)//設(shè)置鍵按下
{
delay_ms(10);
if(key1 == 0)
{
beep = 0;
delay_ms(100);
beep = 1;
while(key1 == 0);//等待按鍵松開(kāi)
setn++;
if(setn > 4)//按下次數(shù)超過(guò)4次，退出設(shè)置
{
setn = 0;
lcd_write_com(0x0c);//關(guān)閉光標(biāo)
lcd_write_str(0,0,"Tem: C Hum: %");
lcd_write_str(0,1," ");
}
if(setn == 1)//設(shè)置溫度下限
{
lcd_write_str(0,0,"Tml: C Tmh: C");
lcd_write_str(0,1,"Hml: % Hmh: %");
display_alarm();
lcd_write_com(0x80+5);
lcd_write_com(0x0f);
}
if(setn == 2)//溫度上限
{
lcd_write_com(0x80+14);
lcd_write_com(0x0f);
}
if(setn == 3)//濕度下限
{
lcd_write_com(0x80+0x40+5);
lcd_write_com(0x0f);
}
if(setn == 4)//濕度上限
{
lcd_write_com(0x80+0x40+14);
lcd_write_com(0x0f);
}
}
}
if(key2 == 0)//加鍵按下
{
delay_ms(10);
if(key2 == 0)
{
beep = 0;
delay_ms(100);
beep = 1;
while(key2 == 0);
if(setn == 1)
{
if(th - tl > 1)//上限必須大于下限，下限才能加
tl ++;
display_alarm();
lcd_write_com(0x80+5);
lcd_write_com(0x0f);
}
if(setn == 2)
{
if(th < 99)//最大到99
th++;
display_alarm();
lcd_write_com(0x80+14);
lcd_write_com(0x0f);
}
if(setn == 3)
{
if(hh - hl > 1)//上限必須大于下限，下限才能加
hl++;
display_alarm();
lcd_write_com(0x80+0x40+5);
lcd_write_com(0x0f);
}
if(setn == 4)
{
if(hh < 99)//最大到99
hh++;
display_alarm();
lcd_write_com(0x80+0x40+14);
lcd_write_com(0x0f);
}
}
}
if(key3 == 0)//減鍵按下
{
delay_ms(10);
if(key3 == 0 )
{
beep = 0;
delay_ms(100);
beep = 1;
while(key3 == 0);
if(setn == 1)
{
if(tl > 0)//最小到0
tl --;
display_alarm();
lcd_write_com(0x80+5);
lcd_write_com(0x0f);
}
if(setn == 2)
{
if(th - tl > 1)//上限必須大于下限，上限才能減
th--;
display_alarm();
lcd_write_com(0x80+14);
lcd_write_com(0x0f);
}
if(setn == 3)
{
if(hl > 0)
hl--;
display_alarm();
lcd_write_com(0x80+0x40+5);
lcd_write_com(0x0f);
}
if(setn == 4)
{
if(hh - hl > 1)//上限必須大于下限，上限才能減
hh--;
display_alarm();
lcd_write_com(0x80+0x40+14);
lcd_write_com(0x0f);
}
}
}
}
void main()
{
unsigned int count;
short temperature;
short humidity;
lcd_init();//1602液晶初始化
lcd_write_str(0,0,"Tem: C Hum: %");
lcd_write_str(0,1," ");
do
{
RH();delay_ms(100);
}while(U8RH_data_H==0&&U8T_data_H==0);
while(1)
{
keyscan();//按鍵掃描
if(count++>=10 && setn == 0)
{
count=0;
RH();
//讀出溫濕度，只取整數(shù)部分
humidity = U8RH_data_H;
temperature = U8T_data_H;
lcd_write_char(4,0,temperature/10+0x30);
lcd_write_char(5,0,temperature%10+0x30);
lcd_write_char(13,0,humidity/10+0x30);
lcd_write_char(14,0,humidity%10+0x30);
if(humidity>=hh)//濕度高于上限，除濕繼電器開(kāi)啟。否則關(guān)閉
relay4 = 0;
else
relay4 = 1;
if(humidity<=hl)//濕度低于下限，加濕繼電器開(kāi)啟。否則關(guān)閉
relay3 = 0;
else
relay3 = 1;
if(temperature>=th)//溫度高于上限，降溫繼電器開(kāi)啟。否則關(guān)閉
relay2 = 0;
else
relay2 = 1;
if(temperature<=tl)//溫度低于下限，加熱繼電器開(kāi)啟。否則關(guān)閉
relay1 = 0;
else
relay1 = 1;
if(humidity>=hh || humidity<=hl || temperature>=th || temperature<=tl)//溫濕度超限
{
beep = ~beep;//蜂鳴器報(bào)警
delay_ms(100);
}
else
{
beep = 1;
}
}
}
}

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