http://mp.weixin.qq.com/mp/homepage?__biz=MzU3OTczMzk5Mg==&hid=7&sn=ad5d5d0f15df84f4a92ebf72f88d4ee8&scene=18#wechat_redirect --------------------------------------------------------------------------------------------------------------------------
#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; //定义标识 volatile bit FlagStartRH = 0; ///开始温湿度转换标志 volatile bit FlagKeyPress = 0; 按下///有键 ///用外部变量定义温湿度传感器 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; ///温度和湿度的上限 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; 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; ////选择定时器的工作方式 TL0 = 0x06; TH0 = 0xf8; ///定时器赋予初始值 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; ///定时器赋予初始值 //每2秒开始一次温湿度转换 RHCounter ; if (RHCounter >= 1000) { FlagStartRH = 1; RHCounter = 0; } } //存储设定值， void Save_Setting() { pSave = (char *)&TH; //低地址对应低8位，高对应高8位 wrteeprom(0, *pSave); ///储存温度上限值TH低8位 DELAY(500); pSave ; wrteeprom(1, *pSave); ///储存温度上限值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 48); break; case 2: if (TH>1) TH--; L1602_char(1, 15, TH/10 48); L1602_char(1, 16, TH 48); break; case 3: if (HH<99) HH ; L1602_char(2, 15, HH/10 48); L1602_char(2, 16, HH 48); break; case 4: if (HH>1) HH--; L1602_char(2, 15, HH/10 48); L1602_char(2, 16, HH 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<500;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:"); ///载入温度和湿度的上限 Load_Setting(); L1602_char(1, 15, TH/10 48); L1602_char(1, 16, TH 48); L1602_char(2, 15, HH/10 48); L1602_char(2, 16, HH 48); while(1) { ///检查温湿度转换标志 if (FlagStartRH == 1) { TR0 = 0; testnum = RH(); FlagStartRH = 0; TR0 = 1; ///读温湿度，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，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 = ;}
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;
}
}