多功能数显温度计的设计设计图和程序.docx

1、多功能数显温度计的设计设计图和程序设计图程序#include #include /#include LCD1602.h/#include DS1302.h#define uint unsigned int#define uchar unsigned char sbit Data=P35; /DHT11定义数据线uchar rec_dat9; /用于显示的接收数据组uchar a2=RH;/sbit DS1302_CLK = P17; /实时时钟时钟线引脚/sbit DS1302_IO = P16; /实时时钟数据线引脚/sbit DS1302_RST = P15; /实时时钟复位线引脚sbit

2、 DS1302_CLK = P14; /实时时钟时钟线引脚sbit DS1302_IO = P15; /实时时钟数据线引脚 sbit DS1302_RST = P16; /实时时钟复位线引脚sbit wireless_1 = P30;sbit wireless_2 = P31;sbit wireless_3 = P32;sbit wireless_4 = P33;sbit ACC0 = ACC0;sbit ACC7 = ACC7;char hide_sec,hide_min,hide_hour,hide_day,hide_week,hide_month,hide_year; /sbit Set

3、 = P20; /模式切换键sbit Up = P21; /加法按键sbit Down = P22; /减法按键sbit out = P23; /跳出调整模式按键/sbit DQ = P10; /温度传输数据I/O口sbit DQ = P13; /温度传输数据I/O口char done,count,temp,flag,up_flag,down_flag; /uchar temp_value; /温度值uchar TempBuffer5,week_value2; /void DHT11_delay_us(uchar n) while(-n);void DHT11_delay_ms(uint z)

4、 uint i,j; for(i=z;i0;i-) for(j=110;j0;j-);void DHT11_start() Data=1; DHT11_delay_us(2); Data=0; DHT11_delay_ms(30); /延时18ms Data=1; DHT11_delay_us(30);uchar DHT11_rec_byte() /接收一个字节 uchar i,dat=0; for(i=0;i8;i+) /从高到低依次接受8位数据 while(!Data); /等待50us 低电平 DHT11_delay_us(8); /延时60us dat0; i-) DS1302_IO

5、= ACC0; /相当于汇编中的RRC DS1302_CLK = 1; DS1302_CLK = 0; ACC = ACC 1; unsigned char DS1302OutputByte(void) /实际时钟读取一字节（内部函数） unsigned char i; for(i=8; i0; 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) DS

6、1302_RST = 0; DS1302_CLK = 0; DS1302_RST = 1; DS1302InputByte(ucAddr); / 地址、命令 DS1302InputByte(ucDa); / 写1Byte命令 DS1302_CLK = 1; DS1302_RST = 0; unsigned char Read1302(unsigned char ucAddr) /读取DS1302数据 unsigned char ucData; DS1302_RST = 0; DS1302_CLK = 0; DS1302_RST = 1; DS1302InputByte(ucAddr|0x01)

7、; /地址、命令 ucData = DS1302OutputByte(); /写1Byte数据 DS1302_CLK = 1; DS1302_CLK = 1; DS1302_RST = 0; return(ucData);void DS1302_GetTime(SYSTEMTIME *Time) /获取时钟芯片数据到自定义结构型数组 unsigned char ReadValue; ReadValue = Read1302(DS1302_SECOND); Time-Second = (ReadValue&0x70)4)*10 + (ReadValue&0x0F); ReadValue = Re

8、ad1302(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

9、= (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) /将数据转换LCD字符串放在DateString if(hide_yearDateSt

10、ring0 = 2; Time-DateString1 = 0; Time-DateString2 = Time-Year/10 + 0; Time-DateString3 = Time-Year%10 + 0; else Time-DateString0 = ; Time-DateString1 = ; Time-DateString2 = ; Time-DateString3 = ; Time-DateString4 = /; if(hide_monthDateString5 = Time-Month/10 + 0; Time-DateString6 = Time-Month%10 + 0

11、; else Time-DateString5 = ; Time-DateString6 = ; Time-DateString7 = /; if(hide_dayDateString8 = Time-Day/10 + 0; Time-DateString9 = Time-Day%10 + 0; else Time-DateString8 = ; Time-DateString9 = ; if(hide_weekWeek%10 + 0; /星期另存不跟年月日一起放 else week_value0 = ; week_value1 = 0; Time-DateString10 = 0; /字符串

12、末尾 加结束字符void TimeToStr(SYSTEMTIME *Time) /时分秒放入LCD字符串TimeString内; if(hide_hourTimeString0 = Time-Hour/10 + 0; Time-TimeString1 = Time-Hour%10 + 0; else Time-TimeString0 = ; Time-TimeString1 = ; Time-TimeString2 = :; if(hide_minTimeString3 = Time-Minute/10 + 0; Time-TimeString4 = Time-Minute%10 + 0;

13、else Time-TimeString3 = ; Time-TimeString4 = ; Time-TimeString5 = :; if(hide_secTimeString6 = Time-Second/10 + 0; Time-TimeString7 = Time-Second%10 + 0; else Time-TimeString6 = ; Time-TimeString7 = ; Time-DateString8 = 0;void Initial_DS1302(void) /时钟芯片初始化 unsigned char Second=Read1302(DS1302_SECOND)

14、; if(Second&0x80) /判断是否关闭 Write1302(0x8e,0x00); /写入允许 Write1302(0x8c,0x07); /写入时间07/07/25星期3时间23:59:55 Write1302(0x88,0x07); Write1302(0x86,0x25); Write1302(0x8a,0x07); /xingqi Write1302(0x84,0x23); Write1302(0x82,0x59); Write1302(0x80,0x55); Write1302(0x8e,0x80); /关闭写入 /*ds18b20子程序*/*ds18b20延时子程序12

15、MHz*/ void delay_18B20(unsigned int i) while(i-);/*ds18b20初始化*/void Init_DS18B20(void) unsigned char x=0; DQ = 1; delay_18B20(8); DQ = 0; delay_18B20(80); DQ = 1; delay_18B20(14); x=DQ; delay_18B20(20);/*ds18b20读数据程序如下*/ unsigned char ReadOneChar(void) uchar i=0; uchar dat = 0; for (i=8;i0;i-) DQ =

16、0; / 给脉冲信号 dat=1; / 数据右移 DQ = 1; / 给脉冲信号 if(DQ) dat|=0x80; / 按位或取最高位 delay_18B20(4); return(dat);/*ds18b20写数据程序如下*/ void WriteOneChar(uchar dat) unsigned char i=0; for (i=8; i0; i-) DQ = 0; DQ = dat&0x01; /取最低位 delay_18B20(5); DQ = 1; /上升沿将数据送入 dat=1; /*ds18b20读取当前温度*/void ReadTemp(void) unsigned char a=0; unsigned char b=0; unsigned char t=0; Init_DS18B20(); WriteOneChar(0xCC); / 跳过读序列号操作 WriteOneChar(0x44); / 启动温度转换 delay_18B20(100); / this message is wery important Init_DS18B20(); WriteOneChar(0xCC); /跳过读序列号操作