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#include<reg52.h>
#include"stdio.h"
#define uint unsigned int
#define uchar unsigned char
typedef unsigned char uint8;
typedef unsigned int uint16;
sbit beep = P1^7; //定義蜂鳴器IO口
sbit LED1 = P1^0; //定義燈IO口
sbit LED2 = P1^1;
sbit k1 = P1^2; //定義燈開關(guān)IO口
sbit k2 = P1^3;
sbit MOTOR = P1^4; //定義電機(jī)
sbit BUTTON_RUN = P1^5; //定義電機(jī)啟動(dòng)按鈕
sbit BUTTON_STOP = P1^6; //定義電機(jī)關(guān)閉按鈕
sbit RS = P2^7;
sbit RW = P2^6;
sbit EN = P2^5;
sbit K1 = P2^0;
sbit K2 = P2^1; //加
sbit K3 = P2^2; //減
sbit DQ = P2^3; //DS18B20數(shù)據(jù)端
//void delay(uint xms);
void motor_run();
void motor_stop();
void LED1_SWITCH();
void LED2_SWITCH();
void init();
void delay(uint16 time);
void lcd_init(); //LCD1602初始化
void lcd_order(uint8 date); //向LCD1602寫一個(gè)指令
void lcd_data(uint8 date); //向LCD1602寫一個(gè)指令
void write_1602(uint8 add,uint8 daa); //寫數(shù)據(jù)
void display(); //顯示溫度
uint8 DS18B20_init(); //DS18B20初始化
void DS18B20_write(uint8 date); //向DS18B20中寫入一個(gè)數(shù)據(jù)
uint8 DS18B20_read(); //從DS18B20中讀一個(gè)數(shù)據(jù)并返回
void DS18B20_check(); //啟動(dòng)DS18B20進(jìn)行溫度采集，并返回當(dāng)前溫度
void KEY(); //修改報(bào)警范圍
long tmp = 0; //存儲(chǔ)溫度值
long t_h = 37,t_l = 10; //溫度上限 溫度下限
bit tmp_hb = 0; tmp_lb = 0; //溫度上下限調(diào)節(jié)指示變量
void judge(); //判斷報(bào)警
uint8 hodometer[] = " H:00 L:00 ";
uint8 temp[]= " wendu:00.00 ";
uint16 ji = 0;
uint8 ku = 0; //標(biāo)志位
void main()
{
init();
lcd_init(); //LCD1602初始化
DS18B20_init(); //DS18B20初始化
DS18B20_write(0xcc); //跳過序列號(hào)
DS18B20_write(0x44); //啟動(dòng)溫度轉(zhuǎn)換
write_1602(4,t_h);
write_1602(12,t_l);
while(1)
{
LED1_SWITCH();
LED2_SWITCH();
motor_run();
motor_stop();
DS18B20_check(); //從DS18B20中讀取溫度
display();
KEY();
judge();
}
}
void write_1602(uint8 add,uint8 daa)
{
lcd_order(0x80+add);
lcd_data(0x30+daa/10);
lcd_data(0x30+daa%10);
}
void judge() //判斷是否在報(bào)警范圍
{
if(tmp<(t_l*1000)||tmp>(t_h*1000)&&t_l>=0)
{
beep = 0;
delay(10);
}
else if(t_l<0&&tmp>(t_h*1000))
beep = 1;
else
beep = 1;
}
void KEY()
{
uint8 jj;
uint8 i = 0;
beep = 1;
if(K1==0)
{
while(!K1);
while(1)
{
lcd_order(0x0f); //開啟光標(biāo)顯示
lcd_order(0x80+5); //光標(biāo)顯示位置
if(K2==0) //判斷加按鍵按下
{
while(K2==0); //等待按鍵釋放
t_h++; //溫度上限加1
write_1602(4,t_h); //顯示溫度上限
}
if(K3==0) //判斷減按鍵按下
{
while(K3==0); //等待按鍵釋放
if(t_h>t_l) //判斷溫度上限大于溫度下限
t_h--;
write_1602(4,t_h); //顯示溫度上限
}
if(K1==0)
{
while(K1==0);
while(1)
{
lcd_order(0x0f);
lcd_order(0x80+13);
if(K2==0)
{
while(K2==0);
if(t_l<t_h&&t_l>=0)
{
lcd_order(0x80+11);
lcd_data(' ');
t_l++;
write_1602(12,t_l);
}
else
{
t_l++;
jj =~ t_l;
write_1602(12,jj);
}
}
if(K3==0)
{
while(K3==0);
if(t_l>(-50))
{
t_l--;
if(t_l<0)
jj =~ t_l;
}
if(t_l>=0)
{
lcd_order(0x80+11);
lcd_data(' ');
write_1602(12,t_l);
}
if(t_l<0)
{
write_1602(12,jj);
lcd_order(0x80+11);
lcd_data('-');
}
}
if(K1==0)
{
while(K1==0);
goto loop;
}
}
}
}
}
loop:beep = 1;
}
//void delay(uint xms) //延時(shí)
//{
// uint i,j;
// for(i=xms;i>0;i--)
// for(j=110;j>0;j--) ;
//}
void delay(uint16 time)
{
while(time--);
}
void lcd_init()
{
uint8 i;
RW = 0;
lcd_order(0x38); //設(shè)置顯示光標(biāo)功能
delay(100);
lcd_order(0x0e); //顯示開及光標(biāo)設(shè)置
delay(100);
lcd_order(0x06); //顯示光標(biāo)移動(dòng)設(shè)置
delay(100);
lcd_order(0x01); //顯示清屏
delay(100);
lcd_order(0x80);
for(i=0;i<16;i++)
lcd_data(hodometer[ i]);[ i]
}
void lcd_order(uint8 date) //LCD1602寫指令
{
RS = 0; //選擇寫指令
EN = 0; //使能初始化
P0 = date; //發(fā)送指令
EN = 1; //開使能
delay(100); //延時(shí)
EN = 0; //關(guān)使能
}
void lcd_data(uint8 date) //LCD1602寫指令
{
RS = 1; //選擇寫數(shù)據(jù)
EN = 0; //使能初始化
P0 = date; //發(fā)送指令
EN = 1; //開使能
delay(100); //延時(shí)
EN = 0; //關(guān)使能
}
uint8 DS18B20_init()
{
uint8 ans;
DQ = 1;
delay(1);
DQ = 0;
delay(100);
DQ = 1;
delay(6);
ans = DQ;
delay(100);
if(!ans)
return 1;
else
return 0;
}
void DS18B20_write(uint8 date)
{
uint8 i;
DQ = 1;
delay(1);
for(i=0;i<8;i++) //根據(jù)時(shí)序?qū)?shù)據(jù)從低到高一位一位發(fā)送出來
{
DQ = 0;
if(date&0x01) //從低到高取出數(shù)據(jù)的每位
DQ = 1;
else
DQ = 0;
delay(10);
DQ = 1;
date >>= 1;
delay(1);
}
}
uint8 DS18B20_read()
{
uint8 i,date = 0;
DQ = 1; //釋放總線
delay(1);
for(i=0;i<8;i++) //根據(jù)時(shí)序?qū)?shù)據(jù)從低到高一位一位接收
{
DQ = 0;
date >>= 1;
DQ = 1;
if(DQ)
date |= 0x80; //將data的一位置1
delay(8);
DQ = 1;
delay(1);
}
return date; //返回讀出的數(shù)
}
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