烟雾报警器制作过程及相关程序

//程序头函数

#include <reg52.h>

//宏定义

#define uint unsigned int

#define uchar unsigned char

#define Data_ADC0809 P1

//管脚声明

sbit Feng = P3^0;

//ADC0809

sbit ST=P3^3;

sbit EOC=P3^4;

sbit OE=P3^2;

//按键

sbit Key1=P3^5;

sbit Key2=P3^6;

sbit Key3=P3^7;

//显示数组 0-9+F

uchar Data_[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x71,0x3f};

sbit Wei1 = P2^7;

sbit Wei2 = P2^6;

sbit Wei3 = P2^5;

sbit Wei4 = P2^4;

//函数声明

extern uchar ADC0809();

void Display(uchar X,uchar Data);

void delay(uint t);

//酒精含量变量

uchar temp=0;

//蜂鸣器变量

uchar FF=10;

//显示模式

uchar Mode=0;

uchar p;

void main()

{

while(1)

{

//正常模式

if(Mode==0)

{

//读取AD值

temp=ADC0809();

for(p=0;p<30;p++)

Display(0,temp);

//判断是否报警

if(temp>FF)

{

Feng=0;

}

else

{

Feng=1;

}

}

//调整模式

else

{

Display(1,FF);

}

//功能键

if(Key3==0)

{

Feng=0;

delay(100);

while(Key3==0)

{

if(Mode==0)

Display(0,temp);

else

Display(1,FF);

}

if(Mode==0)

Mode=1;

else

Mode=0;

Feng=1;

}

//增加

if(Key2==0&&Mode==1)

{

Feng=0;

delay(100);

while(Key2==0)

{

Display(1,FF);

}

FF++;

if(FF==251)

FF=250;

Feng=1;

}

//减少

if(Key1==0&&Mode==1)

{

Feng=0;

delay(100);

while(Key1==0)

{

Display(1,FF);

}

FF--;

if(FF==0xff)

FF=0;

Feng=1;

}

}

}

//ADC0809读取信息

uchar ADC0809()

{

uchar temp_=0x00;

//初始化高阻太

OE=0;

//转化初始化

ST=0;

//开始转换

ST=1;

ST=0;

//外部中断等待AD转换结束

while(EOC==0)

//读取转换的AD值

OE=1;

temp_=Data_ADC0809;

OE=0;

return temp_;

}

//延时

void delay(uint t)

{

uint i,j;

for(i=0;i<t;i++)

for(j=0;j<10;j++);

}

//显示 X表示状态 Data表示数据

void Display(uchar X,uchar Data)

{

Wei1=1;

Wei2=1;

Wei3=1;

Wei4=1;

P0=0xff;

//正常模式

if(X==0)

{

P0=~Data_[11];

}

//非正常

else

{

P0=~Data_[10];

}

Wei1=0;

Wei2=1;

Wei3=1;

Wei4=1;

delay(10);

Wei1=1;

Wei2=1;

Wei3=1;

Wei4=1;

P0=~Data_[Data/100];

Wei1=1;

Wei2=0;

Wei3=1;

Wei4=1;

delay(10);

Wei1=1;

Wei2=1;

Wei3=1;

Wei4=1;

P0=~Data_[Data/10%10];

Wei1=1;

Wei2=1;

Wei3=0;

Wei4=1;

delay(10);

Wei1=1;

Wei2=1;

Wei3=1;

Wei4=1;

P0=~Data_[Data%10];

Wei1=1;

Wei2=1;

Wei3=1;

Wei4=0;

delay(10);

Wei1=1;

Wei2=1;

Wei3=1;

Wei4=1;

}