基于51单片机智能大棚智能花盆浇水浇花灌溉补光散热原理图Proteus仿真

原创已于 2023-10-02 14:18:28 修改 · 1.4k 阅读

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#51单片机 #proteus #单片机

于 2022-12-08 09:18:03 首次发布

本项目介绍了一种基于STC89C52单片机的智能农业监测系统，该系统能够实时显示并控制光照、土壤湿度及温度。通过LCD1602液晶屏展示各项参数及其阈值，并可根据用户通过按键调整的阈值来启动补光、浇水或降温等功能。

功能：
0.本项目采用STC89C52作为单片机系统的控制MCU
1.LCD1602液晶实时显示当前光照/土壤湿度/温度信息，以及光照/土壤湿度/温度设定阈值
2.按键可调整光照/土壤湿度/温度设定阈值
3.超过设定阈值，将控制相应的外设，如浇水、降温等
4.采用DC002作为电源接口可直接输入5V给整个系统供电

原理图：
在这里插入图片描述

PCB ：
在这里插入图片描述

主程序：

#include <reg52.h>
#include <intrins.h>
#include <stdio.h>
#include "tlc0832.h"
#include "lcd1602.h"
#include "delay.h"
#include "18b20.h"

sbit LED_WHITE = P2^2; //补光灯
sbit LED_YELLOW = P2^3; //补温灯
sbit FAN   = P2^1;
sbit RELAY = P2^0;

sbit KEY_SET = P3^3;
sbit KEY_ADD = P3^4;
sbit KEY_SUB = P3^6;

bit refreshFlag = 0; //定义读时间标志

int temp; //温度读取值
float temperature = 0; //温度值

char disdat[14]; //打印数组初始化
char disset[16];

unsigned int Lval = 0;      //光照强度
unsigned int Rval = 0;      //土壤湿度
unsigned int dispTemp;      //显示温度
unsigned char setIndex = 0; //设置值
unsigned char setLval = 50;
unsigned char setRval = 50;
unsigned char setTval = 35;

void Timer0_Init(void); //函数声明
void KeyProcess(void); //按键检测

void main(void)
{
    Timer0_Init();

    LCD_Init();  //初始化液晶
    DelayMs(20); //延时有助于稳定
    LCD_Clear(); //清屏

    LED_WHITE = 0;
    RELAY = 0;
    LED_YELLOW = 0;
    FAN = 0; //上电检测下 方便检测硬件
    DelayMs(200);
    LED_WHITE = 1;
    RELAY = 1;
    LED_YELLOW = 1;
    FAN = 1;

    DS18B20_Start();
    DS18B20_GetTemp(&temp);
    temperature = (float)temp * 0.0625; //温度处理
    DelayS(1);

    sprintf(disdat, "L:%2d R:%2d T:%2d", Lval, Rval, dispTemp); //打印电压电流值
    LCD_DispStr(0, 0, disdat); 
    LCD_DispOneChar(14, 0, 0XDF);
    LCD_DispOneChar(15, 0, 'C');                                                                                 //显示
    sprintf(disset, " L:%2d R:%2d T:%2d", (unsigned int)setLval, (unsigned int)setRval, (unsigned int)setTval); //打印电压电流值
    LCD_DispStr(0, 1, disset);
    while (1) //主循环
    {
        if (refreshFlag == 1) //定时读取
        {
            EA = 0;
            refreshFlag = 0;

            DS18B20_Start();
            DS18B20_GetTemp(&temp);
            temperature = (float)temp * 0.0625; //温度处理
            if (temperature > 1)                //防止温度读错
            {
                dispTemp = (unsigned int)temperature;
            } //温度处理

            Lval = 100 - 100 * ReadADC(AIN1_GND) / 255;
            DelayMs(10); //延时有助于稳定
            Rval = 99 * (255-ReadADC(AIN0_GND)) / 210;
            sprintf(disdat, "L:%2d R:%2d T:%2d", Lval, Rval, dispTemp); //打印电压电流值
            LCD_DispStr(0, 0, disdat);                                  //显示
            LCD_DispOneChar(14, 0, 0xDF);
            LCD_DispOneChar(15, 0, 'C');
            
            if (setIndex == 1) //进入设置
            {
                sprintf(disset, "*L:%2d R:%2d T:%2d ", (unsigned int)setLval, (unsigned int)setRval, (unsigned int)setTval); //打印电压电流值
            }
            else if (setIndex == 2)
            {
                sprintf(disset, " L:%2d*R:%2d T:%2d ", (unsigned int)setLval, (unsigned int)setRval, (unsigned int)setTval); //打印电压电流值
            }
            else if (setIndex == 3)
            {
                sprintf(disset, " L:%2d R:%2d*T:%2d ", (unsigned int)setLval, (unsigned int)setRval, (unsigned int)setTval); //打印电压电流值
            }
            else
            {
                sprintf(disset, " L:%2d R:%2d T:%2d ", (unsigned int)setLval, (unsigned int)setRval, (unsigned int)setTval); //打印电压电流值
            }
            LCD_DispStr(0, 1, disset);

            if (Lval <= setLval) //光照对比
            {
                LED_WHITE = 0; //打开补光灯
            }
            else
            {
                LED_WHITE = 1; //关闭补光灯
            }

            if (Rval <= setRval) //土壤对比
            {
                RELAY = 0; //打开水泵继电器
            }
            else
            {
                RELAY = 1; //关闭水泵继电器
            }

            
            if (dispTemp < setTval) //温度对比
            {
                LED_YELLOW = 0; //打开补温灯
                FAN = 1; //关闭风扇
            }
            else if (dispTemp > setTval)
            {
                LED_YELLOW = 1; //关闭补温灯
                FAN = 0; //打开风扇
            }
            else
            {
                LED_YELLOW = 1; //关闭补温灯
                FAN = 1; //关闭风扇
            }

            EA = 1;
        }
        KeyProcess();
    }
}

void KeyProcess(void)
{

    if (!KEY_SET) //设置键
    {
        DelayMs(20); //延时去抖
        if(!KEY_SET) //再次确认按键按下
        {
            setIndex++;
            if (setIndex > 3)
            {
                setIndex = 0; //取消设置
            }
        }
        while(!KEY_SET);
    }

    if (!KEY_ADD) //加键
    {
        DelayMs(180); //延时去抖
        if(!KEY_ADD) //再次确认按键按下
        {
            if (setIndex == 1) //设光照阈值
            {
                if (setLval < 99) //不超过99
                {
                    setLval++;
                }
            }
            else if (setIndex == 2) //设土壤阈值
            {
                if (setRval < 99) //不超过99
                {
                    setRval++;
                }
            }
            else if (setIndex == 3) //温度设置
            {
                if (setTval < 99) //不超过99
                {
                    setTval++;
                }
            }
        }
        // while(!KEY_ADD);
    }

    if (!KEY_SUB) //减键
    {
        DelayMs(180); //延时去抖
        if(!KEY_SUB) //再次确认按键按下
        {
            if (setIndex == 1) //设光照阈值
            {
                if (setLval > 0) //最小为0
                {
                    setLval--;
                }
            }
            else if (setIndex == 2) //设土壤阈值
            {
                if (setRval > 0) //最小为0
                {
                    setRval--;
                }
            }
            else if (setIndex == 3) //温度设置
            {
                if (setTval > 0) //最小为0
                {
                    setTval--;
                }
            }
        }
        // while(!KEY_SUB);
    }
}

void Timer0_Init(void)
{
    TMOD |= 0x01;                //使用模式1，16位定时器，使用"|"符号可以在使用多个定时器时不受影响
    TH0 = (65536 - 18432) / 256; //重新赋值 20ms
    TL0 = (65536 - 18432) % 256;
    EA = 1;  //总中断打开
    ET0 = 1; //定时器中断打开
    TR0 = 1; //定时器开关打开
}

void Timer0_isr(void) interrupt 1
{
    static unsigned char time_20ms = 0; //定时器计数

    TH0 = (65536 - 18432) / 256; //重新赋值 20ms
    TL0 = (65536 - 18432) % 256;

    time_20ms++;
    if (time_20ms > 10) //定时读取温度
    {

        refreshFlag = 1; //读取温度	标志
        time_20ms = 0;
    }

}

仿真演示视频：
https://www.bilibili.com/video/BV19G4y1g7rX/

实物演示视频：
https://www.bilibili.com/video/BV1Dv4y197hr/