求助:网上找来的单片机程序,想添加控制继电器功能 -

标题: 求助:网上找来的单片机程序,想添加控制继电器功能 [打印本页]

作者: kingzr00 时间: 2023-2-12 19:47
标题: 求助:网上找来的单片机程序,想添加控制继电器功能
网上找来的程序，基于51单片机的倒计时装置，定时时间到后蜂鸣器鸣叫，倒计时结束，想添加一个控制继电器功能，就是计时开始继电器吸合，计时结束继电器释放，不知道怎么加，请各位大佬帮帮忙，在此谢过了！
以下是源码：
//======================================================================
//
//       Copyright (C) 2020 Jobcrazy
//       All rights reserved
//
//======================================================================

#include <reg52.h>

//Button registers
sbit Step1m = P3^6;  //按键3，+1分钟
sbit Step10m = P3^5;  //按键2，+10分钟
sbit Step1h = P3^4;  //按键1，+1小时
sbit StepStart = P3^7;  //按键4，开始计时

//Beep register
sbit Beep = P1^6;  //蜂鸣器

//Relay
sbit Relay = P1^7;  //继电器

//Time Led Dot register
sbit TIME_DOT = P1^5;  //数码管":"

//Time Led Segment register
sbit ShuMa_Duan_0 = P1^0;  //数码管1
sbit ShuMa_Duan_1 = P1^1;  //数码管2
sbit ShuMa_Duan_2 = P1^2;  //数码管3
sbit ShuMa_Duan_3 = P1^3;  //数码管4

//Initial settings
#define DEFAULT_HOUR 00
#define DEFAULT_MINUTE 00
#define DEFAULT_SECOND 00
volatile int Hour = DEFAULT_HOUR;
volatile int Minute = DEFAULT_MINUTE;
volatile int Second = DEFAULT_SECOND;

//Led Number Definitions
code unsigned char ShuMa_Data[10] = {0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92,0x82,0xF8,0x80,0x90};

//Led Number Indexes
volatile int Shi_Left = 0;
volatile int Ge_Left = 0;
volatile int Shi_Right = 0;
volatile int Ge_Right = 0;

//Delay 1 minisecond
void Delay_1ms( int i )
{
for( ; i > 0; --i )
{
      int j = 0;
      for( ; j < 110; ++j )
      {

      }
}
}

//Timer Settings
void Init_Timer()
{
TMOD = 0x11; //Using timer 0 and timer 1
TH0  = 0xB8;
TL0  = 0x00;  //Timer0 = 20ms

TH1  = 0xB8;
TL1  = 0x00;  //Timer1 = 20ms

TR0  = 0x01;  //Enable Timer 0
TR1  = 0x00;
}

//Enable Timer
void Init_Interrupt()
{
ET0 = 1;
ET1 = 1;
EA = 1;
}

//Show Number on the Timer Led
void  ShuMa(unsigned char ShuMa_Wei, unsigned char ShuMa_Index)
{
P2 = ShuMa_Data[ShuMa_Index];

if( ShuMa_Wei == 0 )
{
      ShuMa_Duan_0 = 0;
      ShuMa_Duan_1 = 1;
      ShuMa_Duan_2 = 1;
      ShuMa_Duan_3 = 1;
}
else if( ShuMa_Wei == 1 )
{
      ShuMa_Duan_0 = 1;
      ShuMa_Duan_1 = 0;
      ShuMa_Duan_2 = 1;
      ShuMa_Duan_3 = 1;
}
else if( ShuMa_Wei == 2 )
{
      ShuMa_Duan_0 = 1;
      ShuMa_Duan_1 = 1;
      ShuMa_Duan_2 = 0;
      ShuMa_Duan_3 = 1;
}
else if( ShuMa_Wei == 3 )
{
      ShuMa_Duan_0 = 1;
      ShuMa_Duan_1 = 1;
      ShuMa_Duan_2 = 1;
      ShuMa_Duan_3 = 0;
}

//We must delay 1ms here, or else the Led will not show a correct number
Delay_1ms(1);
}

//Convert the time to a displayable format
void CalcSecond()
{
if( 0 < Hour )
{
      Shi_Left = Hour / 10;
      Ge_Left = Hour % 10;

      Shi_Right = Minute / 10;
      Ge_Right =  Minute % 10;
}
else
{
      Shi_Left = Minute / 10;
      Ge_Left = Minute % 10;

      Shi_Right = Second / 10;
      Ge_Right = Second % 10;
}
}

//Counter Timer
void Interrupt_Timer_0() interrupt 1
{
static int Counter = 0;
TH0 = 0xB8;
TL0 = 0x00;

++Counter;

if( 49 < Counter )
{
      //Ths scope will run 1 time per second
      Counter = 0;
      TIME_DOT = ~TIME_DOT;

      Second--;

      //Let's see how long time is left
      if( Second < 0 )
      {
         Second = 59;
         Minute -= 1;
      }

      if( Minute < 0 )
      {
         if( 0 < Hour )
         {
            Hour--;
            Minute = Second = 59;
         }
         else
         {
            Hour = Minute = Second = 0;
            TR0 = 0; //Disable counter timer
            TR1 = 1; //Enable Beep Timer
         }
      }

      CalcSecond();
}
}

//Beep timer
void Interrupt_Timer_1() interrupt 3
{
static int n = 0, Counter = 0;
TH1 = 0xB8;
TL1 = 0x00;

++Counter;


if( Counter < 10 )
{
      Beep = 0;
}
else if( Counter < 30 )
{
      Beep = 1;
}
else if( Counter > 49 )
{
      Counter = 0;
      TIME_DOT = ~TIME_DOT;

      n++;

      if( n >= 5 )
      {
         Hour =       DEFAULT_HOUR;
         Minute = DEFAULT_MINUTE;
         Second = DEFAULT_SECOND;
         n = 0;

         //Disable two timers
         TR0 = 0;
         TR1 = 0;
      }
}
}

//Covert time to be recognizable
void formatTime()
{
if( Minute >= 60 )
{
      Minute = 0;
      Hour = Hour + 1;
}

if( Hour >= 99 )
{
      Hour = 0;
      Minute = 0;
      Second = 0;
}

CalcSecond();
}

void main()
{
//To avoid long press
int Pressed = 0;

//Light Timer Dot
TIME_DOT = 0;

//Turn Off Beep
Beep = 1;




//Make P3 output high-level signal
P3 = 0xFF;

CalcSecond();

//Infinite loop
while(1)
{
      //Covert time to be recognizable
      formatTime();

      //Show time the led screen
      ShuMa( 0, Shi_Left );
      ShuMa( 1, Ge_Left );
      ShuMa( 2, Shi_Right );
      ShuMa( 3, Ge_Right );

      if( 0 == TR0 && 0 == TR1 ) //If timer is not running
      {
         if( 0 == Step1m && 0 == Pressed )
         {
            //If Step1m button is pressed down
            Pressed = 1;
            Minute = Minute + 1;
         }
         else if( 0 == Step10m && 0 == Pressed )
         {
            //If Step10m button is pressed down
            Pressed = 1;
            Minute = Minute + 10;
         }
         else if( 0 == Step1h && 0 == Pressed )
         {
            //If Step1h button is pressed down
            Pressed = 1;
            Hour = Hour + 1;
         }
         else if( 0 == StepStart && 0 == Pressed )
         {
            //If StepStart button is pressed down
            Pressed = 1;
            if ( 0 != Hour || 0 != Minute || 0 != Second )
            {
                  Init_Timer();
                  Init_Interrupt();
            }
         }
         else
         {
            if( 1 == Step1m && 1 == Step10m && 1 == Step1h && 1 == StepStart )
            {
                  //If no button is pressed down
                  Pressed = 0;
            }
         }
      }

}
}

Timer-master.zip

46.24 KB, 下载次数: 6

作者: hi等你 时间: 2023-2-13 09:14
搞汇编的我真心看不懂这c语言，天书一样，倒计时是很简单的程序，用c写怎么这么长？对于汇编来说，只要在蜂鸣器不工作的时候加一条clr p0.1或者0.2任意端口拉低就可以用这个口驱动继电器了

作者: lkc8210 时间: 2023-2-13 09:30

//...
sbit Relay = Px^y;
void main()
{
//...
while(1)
{
//...
Relay = !TR0;
}
}

复制代码

作者: kingzr00 时间: 2023-2-13 19:16

lkc8210 发表于 2023-2-13 09:30

万分感谢，我通过您的代码问题已经解决！

IMG_20230213_191446.jpg (975.54 KB, 下载次数: 99)

IMG_20230213_191358.jpg (1.27 MB, 下载次数: 92)

作者: 3wjkdhus 时间: 2023-2-13 21:17
蜂鸣器是0启动1关闭，那你可以用npn型三极管直接驱动继电器，当蜂鸣器不响时继电器导通，蜂鸣器响时继电器关闭

作者: 405616736 时间: 2023-2-13 23:05
if ( 0 != Hour || 0 != Minute || 0 != Second )
            {
                  Init_Timer();
                  Init_Interrupt();
Relay=~Relay；
            }
         }
         else
         {
Relay=~Relay；
            if( 1 == Step1m && 1 == Step10m && 1 == Step1h && 1 == StepStart )
            {
                  //If no button is pressed down
                  Pressed = 0;
            }

作者: 405616736 时间: 2023-2-13 23:08

我也做了一个，用18650电池的

作者: 405616736 时间: 2023-2-13 23:08

kingzr00 发表于 2023-2-13 19:16
万分感谢，我通过您的代码问题已经解决！

数码管没有消隐

作者: kingzr00 时间: 2023-2-14 00:54

3wjkdhus 发表于 2023-2-13 21:17
蜂鸣器是0启动1关闭，那你可以用npn型三极管直接驱动继电器，当蜂鸣器不响时继电器导通，蜂鸣器响时继电器 ...

感谢你提供的解决思路，蜂鸣器是计时结束时响5声，如果用蜂鸣器的引脚驱动继电器，当计时结束时就会重复开关5次，有可能对电气造成伤害，不过现在问题已经解决了！

作者: kingzr00 时间: 2023-2-14 00:55

hi等你发表于 2023-2-13 09:14
搞汇编的我真心看不懂这c语言，天书一样，倒计时是很简单的程序，用c写怎么这么长？对于汇编来说，只要在蜂 ...

感谢，问题已经解决了！

作者: kingzr00 时间: 2023-2-16 23:40
已经组装好了，达到预期效果！

作者: kingzr00 时间: 2023-2-16 23:42
完成效果

IMG_20230216_233836.jpg (819.92 KB, 下载次数: 98)

IMG_20230216_233842.jpg (804.76 KB, 下载次数: 90)

IMG_20230216_233853_BURST1.jpg (766.02 KB, 下载次数: 97)

作者: kingzr00 时间: 2023-2-18 15:49

405616736 发表于 2023-2-13 23:05
if ( 0 != Hour || 0 != Minute || 0 != Second )
{
Init_Timer() ...

谢谢！

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