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基于51单片机的空气温湿度及土壤湿度浇花控制WIFI无线传输系统proteus仿真原理图
功能介绍：
0.本系统采用STC89C52作为单片机
1.LCD1602实时显示当前土壤湿度，环境温湿度
2.按键可设定土壤湿度和环境温湿度阈值
3.超过设定阈值时，控制继电器，温度过高时蜂鸣器报警
4.WIFI间隔时间上传土壤湿度，环境温湿度。
5.可通过WIFI控制继电器
*1O# 表示1号继电器打开 支持(1~5)
*1C# 表示1号继电器关闭 支持(1~5)
WIFI控制继电器后，进入手动模式
*MA# 表示可恢复自动模式
5.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#include #include #include "delay.h" #include "dht11.h" #include "lcd1602.h" #include "tlc0832.h" sbit BUZZER = P2^4; sbit KEY_SWITCH = P3^6; //确认按键 sbit KEY_SET = P3^3; //设置按键 sbit KEY_ADD = P3^4; //加按键 sbit KEY_SUB = P3^5; //减按键 sbit RELAY_COOL = P2^0; sbit RELAY_HEAT = P2^1; sbit RELAY_HM = P2^2; sbit RELAY_DHM = P2^3; sbit RELAY_SOIL_HM = P3^2; #define ON 0 #define OFF 1 enum {NORMAL=1, SET_TEMP, SET_HM, SET_SOIL_HM} DispMode; unsigned char dis0[18]; //数组暂存 unsigned char R_buf[4]; bit refreshFlag = 0; bit setFlag = 0; //设置标志 bit setIndex = 0; bit autoFlag = 1; int Temp = 0; int Humidity = 0; int soilHumidity = 0; int minTemp = 25; int maxTemp = 35; int minEvHm = 65; int maxEvHm = 85; int minSoilHm = 30; void Timer0_Init(); //函数声明 void UART_Init(); void UART_SendByte(unsigned char dat); void UART_SendStr(unsigned char *s, unsigned char length); void DispNormal(void); void DispSetTemp(setFlag, setIndex); void DispSetHm(setFlag, setIndex); void DispSetSiolHm(setFlag, setIndex); void RelayCtrl(void); void BuzzerCtrl(void); void KeyScan(void); void main() { Timer0_Init(); //定时器0初始化 LCD_Init(); //LCD初始化 LCD_Clear(); LCD_DispStr(4, 0, "Welcome!"); DelayS(5); //等待WIFI启动 UART_Init(); //串口初始化 UART_SendStr("AT+CIPMUX=1\r\n", 13); //打开多连接 DelayS(1); UART_SendStr("AT+CIPSERVER=1,8080\r\n", 21); //建立服务 端口号为8080 DelayS(1); DispMode = NORMAL; while (1) //主循环 { if (refreshFlag == 1) //刷新数据标志 { static unsigned char cnt = 0; refreshFlag = 0; //检测数据 TR0 = 0; //关总中断 if (cnt % 5 == 0) { DHT11_ReadData(); //检测温湿度 Temp = U8T_data_H; Humidity = U8RH_data_H; } soilHumidity = 100 - 100 * ((5 * ReadADC(AIN0_GND) / 255 - 1.3) / (4.6-1.3)); //检测土壤湿度 if (soilHumidity < 0) { soilHumidity = 0; } else if (soilHumidity > 100) { soilHumidity = 100; } if (DispMode == NORMAL) { DispNormal(); } else if (DispMode == SET_TEMP) { DispSetTemp(setFlag, setIndex); } else if (DispMode == SET_HM) { DispSetHm(setFlag, setIndex); } else if (DispMode == SET_SOIL_HM) { DispSetSiolHm(setFlag, setIndex); } TR0 = 1; //开总中断 if (cnt >= 10) //5秒发送一次 { cnt = 0; //WIFI发送数据 UART_SendStr("AT+CIPSEND=0,35\r\n", 17); //发送AT命令 DelayMs(100); sprintf(dis0, "Temp:%02d'C Hm:%02d%% \r\n", Temp, Humidity); UART_SendStr(dis0, 19); //发送内容 if (autoFlag == 1) //自动模式 { sprintf(dis0, "Siol Hm:%3d%% A\r\n", soilHumidity); } else { sprintf(dis0, "Siol Hm:%3d%% M\r\n", soilHumidity); } UART_SendStr(dis0, 16); //发送内容 } else { cnt++; } } RelayCtrl(); BuzzerCtrl(); KeyScan(); } } void DispNormal(void) { //LCD显示数据 sprintf(dis0, "Temp:%2d", Temp); LCD_DispStr(0, 0, dis0); LCD_DispOneChar(7, 0, 0xdf); //摄氏度的点 sprintf(dis0, "C Hm:%2d%%", Humidity); LCD_DispStr(8, 0, dis0); if (autoFlag == 1) { sprintf(dis0, "Siol Hm: %3d%% A", soilHumidity); //自动模式 } else { sprintf(dis0, "Siol Hm: %3d%% M", soilHumidity); //WIFI控制，手动模式显示 } LCD_DispStr(0, 1, dis0); } void DispSetTemp(setFlag, setIndex) { LCD_DispStr(0, 0, " Set Temp "); sprintf(dis0, " Min:%2d Max:%2d ", minTemp, maxTemp); LCD_DispStr(0, 1, dis0); if (setFlag == 1) { if (setIndex == 0) { LCD_DispOneChar(0, 1, '>'); //箭头 LCD_DispOneChar(8, 1, ' '); } else if (setIndex == 1) { LCD_DispOneChar(0, 1, ' '); LCD_DispOneChar(8, 1, '>'); //箭头 } } else { LCD_DispOneChar(0, 1, ' '); LCD_DispOneChar(8, 1, ' '); } } void DispSetHm(setFlag, setIndex) { LCD_DispStr(0, 0, " Set Hm "); sprintf(dis0, " Min:%2d Max:%2d ", minEvHm, maxEvHm); LCD_DispStr(0, 1, dis0); if (setFlag == 1) { if (setIndex == 0) { LCD_DispOneChar(0, 1, '>'); //箭头 LCD_DispOneChar(8, 1, ' '); } else if (setIndex == 1) { LCD_DispOneChar(0, 1, ' '); LCD_DispOneChar(8, 1, '>'); //箭头 } } else { LCD_DispOneChar(0, 1, ' '); LCD_DispOneChar(8, 1, ' '); } } void DispSetSiolHm(setFlag, setIndex) { LCD_DispStr(0, 0, " Set Soil Hm "); sprintf(dis0, " Min:%2d ", minSoilHm); LCD_DispStr(0, 1, dis0); if (setFlag == 1) { LCD_DispOneChar(4, 1, '>'); //箭头 } else { LCD_DispOneChar(4, 1, ' '); } } void RelayCtrl(void) { if (autoFlag == 1) //自动模式 { if (Temp < minTemp) { RELAY_HEAT = ON; RELAY_COOL = OFF; } else if (Temp > maxTemp) { RELAY_HEAT = OFF; RELAY_COOL = ON; } else { RELAY_HEAT = OFF; RELAY_COOL = OFF; } if (Humidity < minEvHm) { RELAY_HM = ON; RELAY_DHM = OFF; } else if (Humidity > maxEvHm) { RELAY_HM = OFF; RELAY_DHM = ON; } else { RELAY_HM = OFF; RELAY_DHM = OFF; } if (soilHumidity < minSoilHm) { RELAY_SOIL_HM = ON; } else { RELAY_SOIL_HM = OFF; } } } void BuzzerCtrl(void) { if (Temp > maxTemp) { BUZZER = ON; } else { BUZZER = OFF; } } void KeyScan(void) { if (!KEY_SET) //设置键按下 { DelayMs(10); if (!KEY_SET) { if (DispMode != NORMAL) { setFlag = ~setFlag; } else { setFlag = 0; } while(!KEY_SET); } } if (!KEY_SWITCH) //切换键按下 { DelayMs(10); if (!KEY_SWITCH) { if (DispMode == NORMAL) { autoFlag = 1; //恢复自动模式 } else if (DispMode == SET_TEMP || DispMode == SET_HM) { if (setFlag == 1) { setIndex = ~setIndex; } } while(!KEY_SWITCH); } } if (!KEY_ADD) //加键按下 { DelayMs(10); if (!KEY_ADD) { if (DispMode == SET_TEMP && setFlag == 1) { if (setIndex == 0) { minTemp++; if (minTemp >= maxTemp) { minTemp = 0; } } else { maxTemp++; if (maxTemp >= 100) { maxTemp = minTemp+1; } } } else if (DispMode == SET_HM && setFlag == 1) { if (setIndex == 0) { minEvHm++; if (minEvHm >= maxEvHm) { minEvHm = 0; } } else { maxEvHm++; if (maxEvHm >= 100) { maxEvHm = minEvHm+1; } } } else if (DispMode == SET_SOIL_HM && setFlag == 1) { if (setIndex == 0) { minSoilHm++; if (minSoilHm >= 100) { minSoilHm = 0; } } } else { DispMode++; if (DispMode > SET_SOIL_HM) { DispMode = NORMAL; } setIndex = 0; } while(!KEY_ADD); } } if (!KEY_SUB) //减键按下 { DelayMs(10); if (!KEY_SUB) { if (DispMode == SET_TEMP && setFlag == 1) { if (setIndex == 0) { minTemp--; if (minTemp < 0) { minTemp = maxTemp-1; } } else { maxTemp--; if (maxTemp <= minTemp) { maxTemp = 99; } } } else if (DispMode == SET_HM && setFlag == 1) { if (setIndex == 0) { minEvHm--; if (minEvHm < 0) { minEvHm = maxEvHm-1; } } else { maxEvHm--; if (maxEvHm <= minEvHm) { maxEvHm = 99; } } } else if (DispMode == SET_SOIL_HM && setFlag == 1) { if (setIndex == 0) { minSoilHm--; if (minSoilHm < 0) { minSoilHm = 99; } } } else { DispMode--; if (DispMode < NORMAL) { DispMode = SET_SOIL_HM; } setIndex = 0; } while(!KEY_SUB); } } } void Timer0_Init() { TMOD &= 0xF0; 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 } - 1
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- 原文地址：https://blog.csdn.net/jimo167913/article/details/127817925
