功能介绍：
0.本系统采用STC89C52作为单片机
1.系统实时监测当前的土壤湿度和空气温湿度，并上传WIFI
2.支持手动/自动两种模式
3.自动模式下，当温湿度超过阈值上限时，打开通风机，直至降低到下限值，停止通风机，当土壤湿度超过阈值下限时，启动灌溉，直至达到阈值上限，停止灌溉
4.按键可设定阈值，手动控制灌溉和通风机
5.可通过语音控制灌溉和通风机
6.手动模式下，可设置定时灌溉时间
7.WIFI可切换工作模式。
*M# 手动模式 *A# 自动模式
8.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"/*******************变量定义*********************/enum _MODE_DF_ dispMode;bit modeFlag = AUTO; //模式标记uchar setIndex = 0;uint humidity; //湿度uint temperature; //温度uint soilhm; //土壤湿度uint hmMin= 25;uint hmMax= 50;uint tempMin = 25;uint tempMax = 40;uint soilhmMin = 30;uint soilhmMax = 60;bit dispFlag = 0;bit sendFlag = 0;uchar waterTime[2] = {18, 0}; //灌溉时间18:00bit waterTimeSwitch = OFF;bit fanFlag1 = OFF;bit waterFlag1 = OFF;bit waterFlag2 = OFF;bit savePinState1;bit nowPinState1;bit savePinState2;bit nowPinState2;bit buzzerFlag1 = OFF;bit buzzerFlag2 = OFF;xdata char dis[32];/********************************************************函数名称:void mian()函数作用:主函数参数说明:********************************************************/void main(){modeFlag = MANUAL;Timer0_Init(); //初始化定时器0UART_Init(); //初始化串口DS1302_Init(); //初始化DS1302LCD_Init(); //初始化液晶DelayMs(200); //延时有助于稳定LCD_DispStr(4, 0, "Welcome!");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8080DelayS(1);LCD_Clear(); //清屏while (1) //死循环{if (dispFlag == 1){dispFlag = 0;if (dispMode == NORMAL){DispNormal();}}if (sendFlag == 1){sendFlag = 0;SendData();}if (modeFlag == AUTO) //自动控制模式{if (temperature > tempMax && humidity > hmMax) //温度过高且湿度过高，开启通风机{fanFlag1 = ON;}else if (temperature < tempMin && humidity < hmMin) //直到温度和湿度下降到下限值，停止通风机{fanFlag1 = OFF; //关闭通风机}if (soilhm < soilhmMin) //土壤湿度低于设定阈值，启动灌溉{waterFlag1 = ON;}else if (soilhm > soilhmMax) //直到土壤湿度达到设定阈值上限，停止灌溉{waterFlag1 = OFF;}waterFlag2 = OFF;}else{if (waterTimeSwitch == ON){if (timeBufDec[4] == waterTime[0] && timeBufDec[5] == waterTime[1]) //到达喂食时间{waterFlag2 = ON;}else{waterFlag2 = OFF;}}}//语音控制nowPinState1 = VOICE_CTRL_WATER;if (( savePinState1 == 1 ) && ( nowPinState1 == 0 )){waterFlag1 = ON;modeFlag = MANUAL;}if (( savePinState1 == 0 ) && ( nowPinState1 == 1 )){waterFlag1 = OFF;modeFlag = MANUAL;}savePinState1 = nowPinState1;nowPinState2 = VOICE_CTRL_FAN;if (( savePinState2 == 1 ) && ( nowPinState2 == 0 )){fanFlag1 = ON;modeFlag = MANUAL;}if (( savePinState2 == 0 ) && ( nowPinState2 == 1 )){fanFlag1 = OFF;modeFlag = MANUAL;}savePinState2 = nowPinState2;if (fanFlag1 == ON) //启动风机标志{RELAY_FAN = ON;}else{RELAY_FAN = OFF;}if (waterFlag1 == ON || waterFlag2 == ON) //启动灌溉标志{RELAY_WATER = ON;}else{RELAY_WATER = OFF;}KeyProcess();} }/*------------------------------------------------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 - 9216) / 256; //重新赋值 10msTL0 = (65536 - 9216) % 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 int time10ms = 0;TH0 = (65536 - 9216) / 256; //重新赋值 10msTL0 = (65536 - 9216) % 256;time10ms++;if (time10ms % 50 == 0){dispFlag = 1; //显示标志}if (time10ms > 500){time10ms = 0;sendFlag = 1; //WIFI发送信息标志}}void SendData(void){bit buzzerFlag1 = 0;bit buzzerFlag2 = 0;bit buzzerFlag3 = 0;UART_SendStr("AT+CIPSEND=0,29\r\n", 17); //发送数据DelayMs(100);sprintf(dis, "Hm:%2d%% Temp:%3d'C SiolH:%2d%%\r\n", humidity, temperature, soilhm); //串口发送UART_SendStr(dis, 29); //发送数据DelayMs(100);if (temperature > tempMax || temperature < tempMin) //温度值超过阈值报警{UART_SendStr("AT+CIPSEND=0,12\r\n", 17); //发送数据DelayMs(100);UART_SendStr("Temp:Error\r\n", 12); //发送数据DelayMs(100);buzzerFlag1 = 1;}else{buzzerFlag1 = 0;}if (humidity > hmMax || humidity < hmMin) //湿度超过阈值报警{UART_SendStr("AT+CIPSEND=0,10\r\n", 17); //发送数据DelayMs(100);UART_SendStr("Hm:Error\r\n", 10); //发送数据DelayMs(100);buzzerFlag2 = 1;}else{buzzerFlag2 = 0;}if (soilhm > soilhmMax || soilhm < soilhmMin) //土壤湿度超过阈值报警{UART_SendStr("AT+CIPSEND=0,13\r\n", 17); //发送数据DelayMs(100);UART_SendStr("SoilHm:Error\r\n", 13); //发送数据DelayMs(100);buzzerFlag3 = 1;}else{buzzerFlag3 = 0;}if (buzzerFlag1 || buzzerFlag2 || buzzerFlag3){BUZZER = 0; //蜂鸣器报警}else{BUZZER = 1; //关闭蜂鸣器}DelayMs(100);}void DispNormal(void){DHT11_0_ReadData();temperature = U8T_data_H; //读取空气温度humidity = U8RH_data_H; //读取空气湿度sprintf(dis, "Hm:%2d%% T:%3d", humidity, temperature);LCD_DispStr(0, 0, dis);LCD_DispOneChar(12, 0, 0xdf);LCD_DispOneChar(13, 0, 'C');LCD_DispOneChar(14, 0, ' ');LCD_DispOneChar(15, 0, ' ');soilhm = 100 * (255-ReadADC(AIN0_GND)) / 195; //读取土壤湿度sprintf(dis, "S:%2d%% ", soilhm);LCD_DispStr(0, 1, dis);if (modeFlag == AUTO){LCD_DispStr(6, 1, "Md:A ");}else{LCD_DispStr(6, 1, "Md:M ");}DS1302_ReadTime(); //读取时间sprintf(dis, "%02d:%02d", (int)timeBufDec[4], (int)timeBufDec[5]);LCD_DispStr(11, 1, dis); //显示时间}void DispSetRealTime(unsigned char setIndex){sprintf(dis, "%02d/%02d/%02d", (int)timeBufDec[1], (int)timeBufDec[2], (int)timeBufDec[3]);LCD_DispStr(0, 0, dis);switch (timeBufDec[7]){case 0: LCD_DispStr(10, 0, " Sun."); break;case 1: LCD_DispStr(10, 0, " Sun."); break;case 2: LCD_DispStr(10, 0, " Mon."); break;case 3: LCD_DispStr(10, 0, " Tue."); break;case 4: LCD_DispStr(10, 0, " Wed."); break;case 5: LCD_DispStr(10, 0, "Thur."); break;case 6: LCD_DispStr(10, 0, " Fri."); break;case 7: LCD_DispStr(10, 0, " Sat."); break;default: break;}sprintf(dis, " %02d:%02d:%02d ", (int)timeBufDec[4], (int)timeBufDec[5], (int)timeBufDec[6]);LCD_DispStr(0, 1, dis);switch (setIndex){case 1: LCD_SetCursor(1, 0, 1); break;case 2: LCD_SetCursor(4, 0, 1); break;case 3: LCD_SetCursor(7, 0, 1); break;case 4: LCD_SetCursor(14, 0, 1); break;case 5: LCD_SetCursor(5, 1, 1); break;case 6: LCD_SetCursor(8, 1, 1); break;case 7: LCD_SetCursor(11, 1, 1); break;default:break;}}void DispSetHm(unsigned char setIndex){LCD_DispStr(0, 0, " Set Humidity ");sprintf(dis, " H:%2d%% L:%2d%% ", hmMax, hmMin);LCD_DispStr(0, 1, dis);switch (setIndex){case 1: LCD_SetCursor(6, 1, 1); break;case 2: LCD_SetCursor(12, 1, 1); break;default:;}}void DispSetTemp(unsigned char setIndex){LCD_DispStr(0, 0, "Set Temperature ");sprintf(dis, " H:%3d L:%3d ", tempMax, tempMin);LCD_DispStr(0, 1, dis);switch (setIndex){case 1: LCD_SetCursor(7, 1, 1); break;case 2: LCD_SetCursor(13, 1, 1); break;default:;} }void DispSetSoilHm(unsigned char setIndex){LCD_DispStr(0, 0, "Set SoilHumidity");sprintf(dis, " H:%2d%% L:%2d%% ", soilhmMax, soilhmMin);LCD_DispStr(0, 1, dis);switch (setIndex){case 1: LCD_SetCursor(6, 1, 1); break;case 2: LCD_SetCursor(12, 1, 1); break;default:;} }void DispSetWaterTime(unsigned char setIndex){sprintf(dis, "WaterTime: %02d:%02d", (int)waterTime[0], (int)waterTime[1]);LCD_DispStr(0, 0, dis);if (waterTimeSwitch == ON){LCD_DispStr(0, 1, "WaterSwitch: On");}else{LCD_DispStr(0, 1, "WaterSwitch: Off");}switch (setIndex){case 1: LCD_SetCursor(12, 0, 1); break;case 2: LCD_SetCursor(15, 0, 1); break;case 3: LCD_SetCursor(15, 1, 1); break;default:break;} }void UART_Init(void){SCON = 0x50;TH2 = 0xFF;TL2 = 0xFD;RCAP2H = 0xFF; //(65536-(FOSC/32/BAUD)) BAUD = 115200 FOSC = 11059200RCAP2L = 0xFD;/*****************/TCLK = 1;RCLK = 1;C_T2 = 0;EXEN2 = 0;/*****************/TR2 = 1;ES = 1; //打开串口中断EA = 1; //打开总中断}void UART_SendByte(unsigned char dat) //串口发送单字节数据{unsigned char time_out;time_out = 0;SBUF = dat; //将数据放入SBUF中while ((!TI) && (time_out < 100)) //检测是否发送出去{time_out++;DelayUs10x(2);}//未发送出去 进行短暂延时TI = 0; //清除ti标志}void UART_SendStr(unsigned char *s, unsigned char length) //发送定长度字符串{unsigned char num;num = 0x00;while (num < length) //发送长度对比{UART_SendByte(*s); //放松单字节数据s++; //指针++num++; //下一个++}}void UART_Interrupt(void) interrupt 4 //串行中断服务程序{static unsigned char i = 0;static unsigned char firstBit = 0;static unsigned char R_buf[3];if (RI)//判断是接收中断产生{RI = 0; //标志位清零if (SBUF == '*'){firstBit = 1; //接收标志成功i = 0;R_buf[1] = 0;R_buf[2] = 0;}if (firstBit == 1){R_buf[i] = SBUF;SBUF = SBUF;i++;if (i == 3){i = 0;if (R_buf[0] == '*' && R_buf[2] == '#'){if (R_buf[1] == 'M'){modeFlag = MANUAL;}else if (R_buf[1] == 'A'){modeFlag = AUTO;}}firstBit = 0;}}}}
仿真演示视频：
/video/BV1KA4y1Z7dE/
实物演示视频：
/video/BV1ja411E7ih/
