任务
- 甲醛浓度测试
- 甲烷等可燃气体浓度测试
- 温湿度检测
- 时间检测
- LCD12864显示
- 语音报警
元器件清单
传感器说明：
MQ-2： 可燃气体、烟雾 300 to 10000ppm
MQ-5： 液化气、甲烷、煤制气 300 to 5000ppm ；–可用打火机测
MQ-7： 一氧化碳CO 10 to 1000ppm
实物图片
原理图PCB
源程序
/*******************************************************************************
* 文件名称：基于STM32的智能生态鱼缸
* 实验目的：1.
* 2.
* 程序说明：完整程序Q:2772272579;@: [email protected]
* 日期版本：可定制功能。
*******************************************************************************/
#include"include.h"
uint data ch2o=0; //甲醛上限变量， 甲醛浓度变量
uchar data bz=0,UART_dat[10]={
0}; //暂存数据切换变量， 串口暂存数据数组，甲醛浓度高、低位数组， 循环变量
bit flag_200ms=0;
sbit led=P2^0; //温湿度传感器IO口定义
sbit beep=P1^4; //声音模块
extern uchar xdata hour,minute,second;
uint idata value_CH4=0,value_CO=0;
uint idata ch2o_h=1000,CH4_H=100,CO_H=100; //各种传感器上限
uchar idata TH_H=30,RH_H=60; //各种传感器上限
/********************独立按键程序*****************/
uchar idata key_can=20; //按键值
void key_scan() //独立按键程序
{
static uchar key_new;
key_can = 20; //按键值还原
P3 |= 0xf0;
if((P3 & 0xf0) != 0xf0) //按键按下
{
delay_1ms(1); //按键消抖动
if(((P3 & 0xf0) != 0xf0) && (key_new == 1))
{
//确认是按键按下
key_new = 0;
switch(P3 & 0xf0)
{
case 0xd0: key_can = 1; break; //得到k1键值
case 0xb0: key_can = 2; break; //得到K2键值
case 0x70: key_can = 3; break; //得到k3键值
}
}
}
else
key_new = 1;
}
uchar idata menu_1=0; //必须赋初值 !!!!!
/****************按键显示函数***************/
void key_with()
{
if(key_can == 1) //设置键
{
menu_1 ++;
if(menu_1 == 1) //设置时间界面
{
lcd_SendCMD(0x01);//清除显示
lcd_write_string(1,0," 设置时间 ");
lcd_write_string(2,0," 15：05：00 "); // 1 3 5 时分秒位置
// lcd_write_string(2,0,"0123456789abcdef");
lcd_write_sfm2(2,1,hour);
lcd_write_sfm2(2,3,minute);
lcd_write_sfm2(2,5,second);
}
if(menu_1 == 4) //设置甲醛界面
{
lcd_SendCMD(0x01);//清除显示
lcd_write_string(1,0,"设置甲醛浓度上限");
lcd_write_string(2,0,"0.0100mg/m3 "); // 3 位置 Right_Arrow
lcd_write_string(3,0,"温度： ℃ "); // 1 3 5 温度
lcd_write_string(4,0,"湿度： % "); // 1 3 5 湿度
lcd_SendWord(2,7,Left_Arrow); //显示 ← 提示符
lcd_write_jiaquan(2,0,ch2o_h);
lcd_write_sfm2(3,3,TH_H);
lcd_write_sfm2(4,3,RH_H);
}
if(menu_1 == 7) //设置甲烷界面
{
lcd_SendCMD(0x01);//清除显示
lcd_write_string(1,0,"甲烷浓度上限: ");
lcd_write_string(2,0,"上限: 100 ppm "); // 3 位置
lcd_write_CH4(2,3,CH4_H);
lcd_write_string(3,0," CO浓度上限: ");
lcd_write_string(4,0,"上限: 100 ppm "); // 3 位置
lcd_write_CO(4,3,CO_H);
}
if(menu_1 > 8)
{
menu_1 = 0;
lcd_SendCMD(0x01);//清除显示
lcd_write_string(1,0," 15：05：00 ");
lcd_write_string(2,0,"甲醛 ");
lcd_write_string(3,0,"温度：20湿度：20");
lcd_write_string(4,0,"甲烷 CO ");
WriteSet1302(0x8E,0x00); //根据写状态寄存器命令字，写入不保护指令
WriteSet1302(0x84,((hour/10)<<4|(hour%10))); //根据写小时寄存器命令字，写入小时
WriteSet1302(0x82,((minute/10)<<4|(minute%10))); //根据写小时寄存器命令字，写入小时
WriteSet1302(0x80,((second/10)<<4|(second%10))); //根据写小时寄存器命令字，写入小时
// WriteSet1302(0x8E,0x80); //根据写状态寄存器命令字，写入保护指令
lcd_write_jiaquan(2,2,ch2o);
lcd_write_string(2,5,"mg/m3");
lcd_write_sfm2(3,3,TH);
lcd_write_sfm2(3,7,RH);
lcd_write_CH4(4,2,value_CH4);
lcd_write_CO(4,6,value_CO);
}
}
if(menu_1 == 1) //设置时间界面 小时
{
if(key_can == 2)
{
hour=hour+1;
if(hour>23)
hour=23;
}
if(key_can == 3) //设置
{
hour=hour-1 ;
if(hour <= 1)
hour = 1;
}
lcd_write_sfm2(2,1,hour);
lcd_SendWord(3,1,Up_Arrow); //显示 ↑ 提示符
}
if(menu_1 == 2) //设置时间界面 分
{
if(key_can == 2)
{
minute=minute+1;
if(minute>59)
minute=59;
}
if(key_can == 3) //设置
{
minute=minute-1 ;
if(minute <= 1)
minute = 1;
}
lcd_write_sfm2(2,3,minute);
lcd_SendWord(3,1,' '); //显示 提示符
lcd_SendWord(3,3,Up_Arrow); //显示 ↑ 提示符
}
if(menu_1 == 3) //设置时间界面 秒
{
if(key_can == 2)
{
second=second+1;
if(second>59)
second=59;
}
if(key_can == 3) //设置
{
second=second-1 ;
if(second <= 1)
second = 1;
}
lcd_write_sfm2(2,5,second);
lcd_SendWord(3,3,' '); //显示 提示符
lcd_SendWord(3,5,Up_Arrow); //显示 ↑ 提示符
}
if(menu_1 == 4) //设置界面 甲醛
{
if(key_can == 2)
{
ch2o_h+=10;
if(ch2o_h>=10000)
ch2o_h=10000;
}
if(key_can == 3) //设置
{
ch2o_h-=10 ;
if(ch2o_h <= 10)
ch2o_h = 10;
}
lcd_write_jiaquan(2,0,ch2o_h);
lcd_SendWord(2,7,Left_Arrow); //显示 ← 提示符
}
if(menu_1 == 5) //设置界面 温度
{
if(key_can == 2)
{
TH_H+=1;
if(TH_H>=100)
TH_H=100;
}
if(key_can == 3) //设置
{
TH_H-=1 ;
if(TH_H <= 1)
TH_H = 1;
}
lcd_write_sfm2(3,3,TH_H);
lcd_write_string(2,7," "); //显示 提示符
lcd_SendWord(3,7,Left_Arrow); //显示 ← 提示符
}
if(menu_1 == 6) //设置界面 湿度
{
if(key_can == 2)
{
RH_H+=1;
if(RH_H>=100)
RH_H=100;
}
if(key_can == 3) //设置
{
RH_H-=1 ;
if(RH_H <= 1)
RH_H = 1;
}
lcd_write_sfm2(4,3,RH_H);
lcd_write_string(3,7," "); //显示 提示符
lcd_SendWord(4,7,Left_Arrow); //显示 ← 提示符
}
if(menu_1 == 7) //设置界面 甲烷
{
if(key_can == 2)
{
CH4_H+=10;
if(CH4_H>=1000)
CH4_H=10000;
}
if(key_can == 3) //设置
{
CH4_H-=10 ;
if(CH4_H <= 10)
CH4_H = 10;
}
lcd_write_CH4(2,3,CH4_H);
lcd_SendWord(2,7,Left_Arrow); //显示 ← 提示符
}
if(menu_1 == 8) //设置界面 CO
{
if(key_can == 2)
{
CO_H+=10;
if(CO_H>=1000)
CO_H=10000;
}
if(key_can == 3) //设置
{
CO_H-=10 ;
if(CO_H <= 10)
CO_H = 10;
}
lcd_write_CO(4,3,CO_H);
lcd_SendWord(2,7,' '); //显示 提示符
lcd_SendWord(4,7,Left_Arrow); //显示 ← 提示符
lcd_write_string(2,7," "); //显示 提示符
}
}
// uint ch2o_h=1000,CH4_H=100,CO_H=100; //各种传感器上限
//uchar TH_H=30,RH_H=60; //各种传感器上限
void SPK(void)
{
if((ch2o>=ch2o_h)||(value_CH4>=CH4_H)||(value_CO>=CO_H)||(TH>=TH_H)||(RH>=RH_H))
{
beep=0;
led=0;
}
else
{
beep=1;
led=1;
}
}
/*************定时器0初始化程序***************/
void time_init()
{
EA = 1; //开总中断
TMOD = 0X21; //定时器0、定时器1工作方式1
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
ET0 = 1; //开定时器0中断
TR0 = 1; //允许定时器0定时
TH1=0xfd; //串口波特率定时初始
TL1=0xfd;
SCON=0x50; //只发送
ES=1; //打开串口中断
TR1=1;
}
/******************主程序**********************/
void main(void)
{
uchar Count_DHT11=0,Count_Jiaquan=0,Count_ADC0809_CO=0,Count_ADC0809_CH4=0;
// uchar test;
Init_DS1302();
LCD_Init();
read_date();
time_init(); //定时器初始化
beep=1;
led=1;
while(1)
{
key_scan(); //按键检测，若有按键按下，则进按键处理
if(key_can < 10)
{
key_with(); //设置参数
TR0=TR1=0;
}
if(menu_1==0)
{
TR0=1;
read_date(); //读取并显示1302时间
if(flag_200ms == 1) //如果200ms时间到.
{
flag_200ms = 0; //200ms标志清
Count_DHT11++;
if(Count_DHT11>2) //2S采集一次
{
Count_DHT11=0;
receive();
lcd_write_sfm2(3,3,TH);
lcd_write_sfm2(3,7,RH);
}
Count_ADC0809_CO++;
if(Count_ADC0809_CO>4) //4S采集一次CO数据
{
Count_ADC0809_CO=0;
CO_TEST
value_CO=Get_CO();
lcd_write_CO(4,6,value_CO);
}
Count_ADC0809_CH4++;
if(Count_ADC0809_CH4>5) //5S采集一次CH4数据
{
Count_ADC0809_CH4=0;
CH4_TEST
value_CH4=Get_CH4();
lcd_write_CH4(4,2,value_CH4);
}
Count_Jiaquan++;
if(Count_Jiaquan>8) //8S采集一次
{
Count_Jiaquan=0;
ES=1;
TR1=1;
lcd_write_jiaquan(2,2,ch2o);
lcd_write_string(2,5,"mg/m3");
}
else
{
ES=0;
TR1=0;
}
}
SPK();
}
}
}
/*************定时器0中断服务程序***************/
void time0_int() interrupt 1 //定时中断函数 每50ms进一次中断
{
static uchar count_timer0=0;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
count_timer0++;
if(count_timer0>=20) //1s
{
flag_200ms=1;
count_timer0=0;
}
}
void UART_4() interrupt 4 //处理接收的串口数据
{
if(RI)
{
RI=0; //RI 置0
UART_dat[bz]=SBUF; //暂存串口数据
switch(bz)
{
case 0:
if(UART_dat[bz]==0xFF)
{
bz=1;
}else
{
bz=0;
}
break;
case 1:
if(UART_dat[bz]==0x17)
{
bz=2;
}else
{
bz=0;
}
break;
case 2:
if(UART_dat[bz]==0x04)
{
bz=3;
}else
{
bz=0;
}
break;
case 3:
if(UART_dat[bz]==0x00)
{
bz=4;
}else
{
bz=0;
}
break;
case 4:
bz=5;
break;
case 5:
bz=6;
break;
case 6:
if(UART_dat[bz]==0x13)
{
bz=7;
}else
{
bz=0;
}
break;
case 7:
if(UART_dat[bz]==0x88)
{
bz=8;
}else
{
bz=0;
}
break;
case 8: //校验接收的数据 正确则处理接收的数据
if((UART_dat[bz]+UART_dat[1]+UART_dat[2]+UART_dat[3]+UART_dat[4]+UART_dat[5]+UART_dat[6]+UART_dat[7])%256==0)
{
ch2o=UART_dat[4]*256+UART_dat[5];
ch2o=ch2o*13.392857;
bz=0;
}else
{
bz=0;
}
break;
}
}
}