单片机驱动SHT11温湿度显示可调报警proteus仿真电路程序 sht11 显示温湿度 ...

Zedd · 发表于 2018-11-9 11:12

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单片机驱动SHT11温湿度显示可调报警proteus仿真电路程序

sht11 显示温湿度    调节温湿度范围报警且能通过控制器调节

单片机源程序如下:

#include <REG51.H>
#include <intrins.h>
//#include "LCD1602.h"
//#include "DS1302.h"
#define uint unsigned int
#define uchar unsigned char
sbit  DS1302_CLK = P1^7;             //实时时钟时钟线引脚
sbit  DS1302_IO  = P1^6;             //实时时钟数据线引脚
sbit  DS1302_RST = P1^5;             //实时时钟复位线引脚
sbit  wireless_1 = P3^0;
sbit  wireless_2 = P3^1;
sbit  wireless_3 = P3^2;
sbit  wireless_4 = P3^3;
sbit  ACC0 = ACC^0;
sbit  ACC7 = ACC^7;
char hide_sec,hide_min,hide_hour,hide_day,hide_week,hide_month,hide_year;  //秒,分,时到日,月,年位闪的计数
sbit Set = P2^0;    //模式切换键
sbit Up = P2^1;       //加法按钮
sbit Down = P2^2;    //减法按钮
sbit out = P2^3;    //立刻跳出调整模式按钮

char done,count,temp,flag,up_flag,down_flag;

uchar week_value[2];

void show_time(); //液晶显示程序
/***********1602液晶显示部分子程序****************/

//Port Definitions**********************************************************
sbit LcdRs             = P2^5;
sbit LcdRw             = P2^6;
sbit LcdEn       = P2^7;
sfr  DBPort       = 0x80;             //P0=0x80,P1=0x90,P2=0xA0,P3=0xB0.数据端口

//内部等待函数**************************************************************************
unsigned char LCD_Wait(void)
{
      LcdRs=0;
      LcdRw=1;       _nop_();
      LcdEn=1;       _nop_();

      LcdEn=0;
      return DBPort;
}
//向LCD写入命令或数据************************************************************
#define LCD_COMMAND                      0    // Command
#define LCD_DATA                      1    // Data
#define LCD_CLEAR_SCREEN       0x01    // 清屏
#define LCD_HOMING                0x02    // 光标返回原点
void LCD_Write(bit style, unsigned char input)
{
      LcdEn=0;
      LcdRs=style;
      LcdRw=0;             _nop_();
      DBPort=input;       _nop_();//注意顺序
      LcdEn=1;             _nop_();//注意顺序
      LcdEn=0;             _nop_();
      LCD_Wait();
}

//设置显示模式************************************************************
#define LCD_SHOW                      0x04 //显示开
#define LCD_HIDE                      0x00 //显示关

#define LCD_CURSOR                      0x02       //显示光标
#define LCD_NO_CURSOR             0x00 //无光标

#define LCD_FLASH                      0x01 //光标闪动
#define LCD_NO_FLASH             0x00 //光标不闪动

void LCD_SetDisplay(unsigned char DisplayMode)
{
      LCD_Write(LCD_COMMAND, 0x08|DisplayMode);
}

//设置输入模式************************************************************
#define LCD_AC_UP                      0x02
#define LCD_AC_DOWN                      0x00    // default

#define LCD_MOVE                      0x01    // 画面可平移
#define LCD_NO_MOVE                      0x00    //default

void LCD_SetInput(unsigned char InputMode)
{
      LCD_Write(LCD_COMMAND, 0x04|InputMode);
}

//初始化LCD************************************************************
void LCD_Initial()
{
      LcdEn=0;
      LCD_Write(LCD_COMMAND,0x38);          //8位数据端口,2行显示,5*7点阵
      LCD_Write(LCD_COMMAND,0x38);
      LCD_SetDisplay(LCD_SHOW|LCD_NO_CURSOR); //开启显示, 无光标
      LCD_Write(LCD_COMMAND,LCD_CLEAR_SCREEN); //清屏
      LCD_SetInput(LCD_AC_UP|LCD_NO_MOVE);    //AC递增, 画面不动
}

//液晶字符输入的位置************************
void GotoXY(unsigned char x, unsigned char y)
{
      if(y==0)
            LCD_Write(LCD_COMMAND,0x80|x);
      if(y==1)
            LCD_Write(LCD_COMMAND,0x80|(x-0x40));
}

//将字符输出到液晶显示
void Print(unsigned char *str)
{
      while(*str!='\0')
      {
            LCD_Write(LCD_DATA,*str);
            str++;
      }
}

/***********DS1302时钟部分子程序******************/
typedef struct __SYSTEMTIME__
{
      unsigned char Second;
      unsigned char Minute;
      unsigned char Hour;
      unsigned char Week;
      unsigned char Day;
      unsigned char Month;
      unsigned char  Year;
      unsigned char DateString[11];
      unsigned char TimeString[9];
}SYSTEMTIME;       //定义的时间类型
SYSTEMTIME CurrentTime;

#define AM(X)       X
#define PM(X)       (X+12)                   // 转成24小时制
#define DS1302_SECOND       0x80       //时钟芯片的寄存器位置,存放时间
#define DS1302_MINUTE       0x82
#define DS1302_HOUR             0x84
#define DS1302_WEEK             0x8A
#define DS1302_DAY             0x86
#define DS1302_MONTH       0x88
#define DS1302_YEAR             0x8C

void DS1302InputByte(unsigned char d)       //实时时钟写入一字节(内部函数)
{
unsigned char i;
ACC = d;
for(i=8; i>0; i--)
{
      DS1302_IO = ACC0;                //相当于汇编中的 RRC
      DS1302_CLK = 1;
      DS1302_CLK = 0;
      ACC = ACC >> 1;
}
}

unsigned char DS1302OutputByte(void)       //实时时钟读取一字节(内部函数)
{
unsigned char i;
for(i=8; i>0; i--)
{
      ACC = ACC >>1;                               //相当于汇编中的 RRC
      ACC7 = DS1302_IO;
      DS1302_CLK = 1;
      DS1302_CLK = 0;
}
return(ACC);
}

void Write1302(unsigned char ucAddr, unsigned char ucDa)       //ucAddr: DS1302地址, ucData: 要写的数据
{
DS1302_RST = 0;
DS1302_CLK = 0;
DS1302_RST = 1;
DS1302InputByte(ucAddr);             // 地址，命令
DS1302InputByte(ucDa);             // 写1Byte数据
DS1302_CLK = 1;
DS1302_RST = 0;
}

unsigned char Read1302(unsigned char ucAddr)       //读取DS1302某地址的数据
{
unsigned char ucData;
DS1302_RST = 0;
DS1302_CLK = 0;
DS1302_RST = 1;
DS1302InputByte(ucAddr|0x01);       // 地址，命令
ucData = DS1302OutputByte();       // 读1Byte数据
DS1302_CLK = 1;
DS1302_RST = 0;
return(ucData);
}

void DS1302_GetTime(SYSTEMTIME *Time)  //获取时钟芯片的时钟数据到自定义的结构型数组
{
      unsigned char ReadValue;
      ReadValue = Read1302(DS1302_SECOND);
      Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
      ReadValue = Read1302(DS1302_MINUTE);
      Time->Minute = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
      ReadValue = Read1302(DS1302_HOUR);
      Time->Hour = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
      ReadValue = Read1302(DS1302_DAY);
      Time->Day = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
      ReadValue = Read1302(DS1302_WEEK);
      Time->Week = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
      ReadValue = Read1302(DS1302_MONTH);
      Time->Month = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
      ReadValue = Read1302(DS1302_YEAR);
      Time->Year = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
}

void DateToStr(SYSTEMTIME *Time) //将时间年,月,日,星期数据转换成液晶显示字符串,放到数组里DateString[]
{ if(hide_year<2)                //这里的if,else语句都是判断位闪烁,<2显示数据,>2就不显示,输出字符串为 2007/07/22
{
      Time->DateString[0] = '2';
      Time->DateString[1] = '0';
      Time->DateString[2] = Time->Year/10 + '0';
      Time->DateString[3] = Time->Year%10 + '0';
      }
      else
         {
            Time->DateString[0] = ' ';
            Time->DateString[1] = ' ';
            Time->DateString[2] = ' ';
            Time->DateString[3] = ' ';
            }
      Time->DateString[4] = '/';
      if(hide_month<2)
      {
      Time->DateString[5] = Time->Month/10 + '0';
      Time->DateString[6] = Time->Month%10 + '0';
      }
      else
      {
         Time->DateString[5] = ' ';
         Time->DateString[6] = ' ';
      }
      Time->DateString[7] = '/';
      if(hide_day<2)
      {
      Time->DateString[8] = Time->Day/10 + '0';
      Time->DateString[9] = Time->Day%10 + '0';
      }
      else
      {
         Time->DateString[8] = ' ';
         Time->DateString[9] = ' ';
      }
      if(hide_week<2)
      {
      week_value[0] = Time->Week%10 + '0';  //星期的数据另外放到 week_value[]数组里,跟年,月,日的分开存放,因为等一下要在最后显示
      }
      else
      {
         week_value[0] = ' ';
      }
      week_value[1] = '\0';

      Time->DateString[10] = '\0'; //字符串末尾加 '\0' ,判断结束字符
}

void TimeToStr(SYSTEMTIME *Time)  //将时,分,秒数据转换成液晶显示字符放到数组 TimeString[];
{ if(hide_hour<2)
{
      Time->TimeString[0] = Time->Hour/10 + '0';
      Time->TimeString[1] = Time->Hour%10 + '0';
      }
      else
         {
            Time->TimeString[0] = ' ';
            Time->TimeString[1] = ' ';
            }
      Time->TimeString[2] = ':';
if(hide_min<2)
      {
      Time->TimeString[3] = Time->Minute/10 + '0';
      Time->TimeString[4] = Time->Minute%10 + '0';
      }
      else
         {
            Time->TimeString[3] = ' ';
            Time->TimeString[4] = ' ';
            }
      Time->TimeString[5] = ':';
if(hide_sec<2)
{
      Time->TimeString[6] = Time->Second/10 + '0';
      Time->TimeString[7] = Time->Second%10 + '0';
}
   else
   {
      Time->TimeString[6] = ' ';
         Time->TimeString[7] = ' ';
   }
      Time->DateString[8] = '\0';
}

void Initial_DS1302(void) //时钟芯片初始化
{
      unsigned char Second=Read1302(DS1302_SECOND);
      if(Second&0x80)             //判断时钟芯片是否关闭
{
      Write1302(0x8e,0x00); //写入允许
      Write1302(0x8c,0x07); //以下写入初始化时间日期:07/07/25.星期: 3. 时间: 23:59:55
      Write1302(0x88,0x07);
      Write1302(0x86,0x25);
      Write1302(0x8a,0x07);
      Write1302(0x84,0x23);
      Write1302(0x82,0x59);
      Write1302(0x80,0x55);
      Write1302(0x8e,0x80); //禁止写入
      }

}

/*延时子程序*/
void mdelay(uint delay)
{       uint i;
      for(;delay>0;delay--)
               {for(i=0;i<62;i++) //1ms延时.
                     {;}
               }
}

void outkey()                   //跳出调整模式,返回默认显示
{ uchar Second;
  if(out==0)
  { mdelay(8);
      count=0;
      hide_sec=0,hide_min=0,hide_hour=0,hide_day=0,hide_week=0,hide_month=0,hide_year=0;
      Second=Read1302(DS1302_SECOND);
Write1302(0x8e,0x00); //写入允许
      Write1302(0x80,Second&0x7f);
      Write1302(0x8E,0x80);       //禁止写入
      done=0;
      while(out==0);

  }
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////
void Upkey()//升序按键
{
            Up=1;
            if(Up==0)
                        {
                                 mdelay(8);
                                    switch(count)
                                       {case 1:
                              temp=Read1302(DS1302_SECOND);  //读取秒数
                                                               temp=temp+1;  //秒数加1
                              up_flag=1; //数据调整后更新标志
                                                               if((temp&0x7f)>0x59) //超过59秒,清零
                              temp=0;
                                                               break;
                                       case 2:
                              temp=Read1302(DS1302_MINUTE);  //读取分数
                                                               temp=temp+1;  //分数加1
                              up_flag=1;
                                                               if(temp>0x59)       //超过59分,清零
                                                               temp=0;
                                                               break;
                                       case 3:
                              temp=Read1302(DS1302_HOUR);  //读取小时数
                                                               temp=temp+1;  //小时数加1
                              up_flag=1;
                                                               if(temp>0x23) //超过23小时,清零
                                                               temp=0;
                                                               break;
                                       case 4:
                              temp=Read1302(DS1302_WEEK);  //读取星期数
                                                               temp=temp+1;  //星期数加1
                              up_flag=1;
                                                               if(temp>0x7)
                                                               temp=1;
                                                               break;
                                       case 5:
                              temp=Read1302(DS1302_DAY);  //读取日数
                                                               temp=temp+1;  //日数加1
                              up_flag=1;
                                                               if(temp>0x31)
                                                               temp=1;
                                                               break;
                                       case 6:
                              temp=Read1302(DS1302_MONTH);  //读取月数
                                                               temp=temp+1;  //月数加1
                              up_flag=1;
                                                               if(temp>0x12)
                                                               temp=1;
                                                               break;
                                       case 7:
                              temp=Read1302(DS1302_YEAR);  //读取年数
                                                               temp=temp+1;  //年数加1
                              up_flag=1;
                                                               if(temp>0x85)
                                                               temp=0;
                                                               break;
                                             default:break;
                                       }

                                 while(Up==0);

                              }
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////
void Downkey()//降序按键
{
            Down=1;
         if(Down==0)
                        {
                                 mdelay(8);
                                 switch(count)
                                       {case 1:
                              temp=Read1302(DS1302_SECOND);  //读取秒数
                                                               temp=temp-1;                                                 //秒数减1
                              down_flag=1;    //数据调整后更新标志
                                                               if(temp==0x7f)    //小于0秒,返回59秒
                                                               temp=0x59;
                                                               break;
                                       case 2:
                              temp=Read1302(DS1302_MINUTE);  //读取分数
                                                               temp=temp-1;  //分数减1
                              down_flag=1;
                                                               if(temp==-1)
                                                               temp=0x59;    //小于0秒,返回59秒
                                                               break;
                                       case 3:
                              temp=Read1302(DS1302_HOUR);  //读取小时数
                                                               temp=temp-1;  //小时数减1
                              down_flag=1;
                                                               if(temp==-1)
                                                               temp=0x23;
                                                               break;
                                       case 4:
                              temp=Read1302(DS1302_WEEK);  //读取星期数
                                                               temp=temp-1;  //星期数减1
                              down_flag=1;
                                                               if(temp==0)
                                                               temp=0x7;;
                                                               break;
                                       case 5:
                              temp=Read1302(DS1302_DAY);  //读取日数
                                                               temp=temp-1;  //日数减1
                              down_flag=1;
                                                               if(temp==0)
                                                               temp=31;
                                                               break;
                                       case 6:
                              temp=Read1302(DS1302_MONTH);  //读取月数
                                                               temp=temp-1;  //月数减1
                              down_flag=1;
                                                               if(temp==0)
                                                               temp=12;
                                                               break;
                                       case 7:
                              temp=Read1302(DS1302_YEAR);  //读取年数
                                                               temp=temp-1;  //年数减1
                              down_flag=1;
                                                               if(temp==-1)
                                                               temp=0x85;
                                                               break;
                                          default:break;
                                       }

                                 while(Down==0);

                              }
}

void Setkey()//模式选择按键
{
            Set=1;
            if(Set==0)
         {
         mdelay(8);
         count=count+1;       //Setkey按一次,count就加1
               done=1;                      //进入调整模式
         while(Set==0);

               }

}

void keydone()//按键功能执行
{       uchar Second;
               if(flag==0) //关闭时钟,停止计时
      { Write1302(0x8e,0x00); //写入允许
         temp=Read1302(0x80);
         Write1302(0x80,temp|0x80);
            Write1302(0x8e,0x80); //禁止写入
         flag=1;
      }
      Setkey();                                           //扫描模式切换按键
               switch(count)
               {case 1:do                                              //count=1,调整秒
                        {
               outkey();                         //扫描跳出按钮
                                 Upkey();             //扫描加按钮
                                 Downkey();             //扫描减按钮
                                 if(up_flag==1||down_flag==1)  //数据更新，重新写入新的数据
                                 {
                                 Write1302(0x8e,0x00); //写入允许
                                 Write1302(0x80,temp|0x80); //写入新的秒数
                                 Write1302(0x8e,0x80); //禁止写入
                                 up_flag=0;
                                 down_flag=0;
                                 }

                                 hide_sec++;       //位闪计数
                                 if(hide_sec>3)
                                 hide_sec=0;
               show_time();       //液晶显示数据
                              }while(count==2);break;
               case 2:do                                              //count=2,调整分
                        {
                                 hide_sec=0;
                                 outkey();
                                 Upkey();
                                 Downkey();
                                 if(temp>0x60)
                                 temp=0;
                                 if(up_flag==1||down_flag==1)
                                 {
                                 Write1302(0x8e,0x00); //写入允许
                                 Write1302(0x82,temp); //写入新的分数
                                 Write1302(0x8e,0x80); //禁止写入
                                 up_flag=0;
                                 down_flag=0;
                                 }
                                 hide_min++;
                                 if(hide_min>3)
                                 hide_min=0;
               show_time();
                              }while(count==3);break;
               case 3:do                                              //count=3,调整小时
                        {
               hide_min=0;
                                 outkey();
                                 Upkey();
                                 Downkey();
                                 if(up_flag==1||down_flag==1)
                                 {
                                 Write1302(0x8e,0x00); //写入允许
                                 Write1302(0x84,temp); //写入新的小时数
                                 Write1302(0x8e,0x80); //禁止写入
                                 up_flag=0;
                                 down_flag=0;
                                 }
                                 hide_hour++;
                                 if(hide_hour>3)
                                 hide_hour=0;
               show_time();
                              }while(count==4);break;
               case 4:do                                              //count=4,调整星期
                        {
               hide_hour=0;
                                 outkey();
                                 Upkey();
                                 Downkey();
                                 if(up_flag==1||down_flag==1)
                                 {
                                 Write1302(0x8e,0x00); //写入允许
                                 Write1302(0x8a,temp); //写入新的星期数
                                 Write1302(0x8e,0x80); //禁止写入
                                 up_flag=0;
                                 down_flag=0;
                                 }
                                 hide_week++;
                                 if(hide_week>3)
                                 hide_week=0;
               show_time();
                              }while(count==5);break;
               case 5:do                                              //count=5,调整日
                        {
                                 hide_week=0;
                                 outkey();
                                 Upkey();
                                 Downkey();
                                 if(up_flag==1||down_flag==1)
                                 {
                                 Write1302(0x8e,0x00); //写入允许
                                 Write1302(0x86,temp); //写入新的日数
                                 Write1302(0x8e,0x80); //禁止写入
                                 up_flag=0;
                                 down_flag=0;
                                 }
                                 hide_day++;
                                 if(hide_day>3)
                                 hide_day=0;
               show_time();
                              }while(count==6);break;
               case 6:do                                              //count=6,调整月
                        {
               hide_day=0;
                                 outkey();
                                 Upkey();
                                 Downkey();
                                 if(up_flag==1||down_flag==1)
                                 {
                                 Write1302(0x8e,0x00); //写入允许
                                 Write1302(0x88,temp); //写入新的月数
                                 Write1302(0x8e,0x80); //禁止写入
                                 up_flag=0;
                                 down_flag=0;
                                 }
                                 hide_month++;
                                 if(hide_month>3)
                                 hide_month=0;
               show_time();
                              }while(count==7);break;
               case 7:do                                              //count=7,调整年
                        {
               hide_month=0;
                                 outkey();
                                 Upkey();
                                 Downkey();
                                 if(up_flag==1||down_flag==1)
                                 {
                                 Write1302(0x8e,0x00); //写入允许
                                 Write1302(0x8c,temp); //写入新的年数
                                 Write1302(0x8e,0x80); //禁止写入
                                 up_flag=0;
                                 down_flag=0;
                                 }
                                 hide_year++;
                                 if(hide_year>3)
                                 hide_year=0;
               show_time();
                              }while(count==8);break;
               case 8: count=0;hide_year=0;  //count8, 跳出调整模式,返回默认显示状态
                  Second=Read1302(DS1302_SECOND);
               Write1302(0x8e,0x00); //写入允许
                  Write1302(0x80,Second&0x7f);
                  Write1302(0x8E,0x80);       //禁止写入
                              done=0;
               break; //count=7,开启中断,标志位置0并退出
               default:break;

               }

}

void show_time() //液晶显示程序
{
  DS1302_GetTime(&CurrentTime);  //获取时钟芯片的时间数据
  TimeToStr(&CurrentTime);    //时间数据转换液晶字符
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