基于51单片机的衣柜鞋柜湿度控制系统proteus仿真原理图PCB

功能介绍：

0.本系统采用STC89C52作为单片机

1.LCD1602液晶实时显示当前湿度值

2.当湿度超过设定湿度阈值范围时，启动加热和风机控制继电器，否则关闭

3.按键可设定湿度阈值

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：

PCB：

主程序：

#include "main.h"unsigned char dispFlag = 0; //更新显示标志enum _MODE_DF_ dispMode;unsigned char num = 0;int temp = 0;int humidity = 0;int hmMax = 60;unsigned char setIndex = 0;bit ctrlFlag = 0; //自动控制开关bit ctrlFlag1 = 0; //手动控制开关char dis0[16]; //定义显示区域临时存储数组void main(void){char channel = 0;Timer0_Init();LCD_Init(); //初始化液晶DelayMs(200); //延时有助于稳定LCD_Clear(); //清屏LCD_DispStr(0, 0, " Welcome ");DelayS(1);LCD_Clear(); //清屏DispNormal();while (1) //主循环{if (dispFlag == 1){dispFlag = 0;if (dispMode == NORMAL){TR0 = 0;DHT11_0_ReadData();temp = U8T_data_H;humidity = U8RH_data_H;TR0 = 1;DispNormal();if (humidity > hmMax) //湿度大于预设值{ctrlFlag = 1; //控制开关标志}else{ctrlFlag = 0;}}}KeyProcess();}}void DispNormal(void){sprintf(dis0, "Hm:%2d%% Temp:%2d", humidity, temp); //打印温度值LCD_DispStr(0, 0, dis0);LCD_DispOneChar(14, 0, 0xdf); //写入温度右上角点LCD_DispOneChar(15, 0, 'C'); //写入温度的Cif (ctrlFlag || ctrlFlag1) //控制开关打开{RELAY_HEAT = ON; //开启加热RELAY_FAN = ON; //开启通风LCD_DispStr(0, 1, "Heat:ON Fan:ON ");}else{RELAY_HEAT = OFF; //关闭加热RELAY_FAN = OFF; //关闭通风LCD_DispStr(0, 1, "Heat:OFF Fan:OFF");}}void DispSetHm(unsigned char setIndex){LCD_DispStr(0, 0, " Set Hm Limit "); sprintf(dis0, " %2d%%", hmMax);LCD_DispStr(0, 1, dis0);switch (setIndex){case 1: LCD_SetCursor(8, 1, 1); break;default:;} }/*------------------------------------------------定时器初始化子程序------------------------------------------------*/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 20msTL0 = (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}/*------------------------------------------------定时器中断子程序------------------------------------------------*/void Timer0_Interrupt(void) interrupt 1{static unsigned char time20ms = 0;TH0 = (65536 - 18432) / 256; //重新赋值 20msTL0 = (65536 - 18432) % 256;time20ms++;if (time20ms > 100){time20ms = 0;dispFlag = 1; //读标志位置1}}

仿真演示视频：

/video/BV1pF411j7Y8/

实物演示视频：

/video/BV1z14y1a7WZ/