功能：
0.本系统采用STC89C52作为单片机
1.系统实时监测当前佩戴者的心率和体温，通过LCD1602显示相关数据
2.定时通过WIFI串口发送佩戴者的心率和体温
3.系统预留出串口接口，需要注意的是该型号的单片机只有一路串口，下载和WiFi通信是共用的该接口，为了防止冲突，再下载程序的时候需要把WiFi模块拔下来，下载完了之后取下下载器再插上WiFi模块！
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 "reg52.h"#include <stdio.h>#include "delay.h"#include "lcd1602.h"#include "18b20.h"unsigned char datIndex = 0;unsigned int timeCnt = 0; //中间变量值unsigned char heartRate = 0; unsigned int heartRateBuf[3] = {0};//记录多次心率值求平均unsigned char xdata dis0[16]; //定义显示区域临时存储数组bit dispFlag = 0; //更新标志变量bit readTempFlag = 0;//读取温度标志unsigned char g_messageCnt;//短信发送计数bit refreshHRFlag = 0;bit updateFlag = 0;bit sendFlag = 0;void InitTimer0(void); //函数声明void UARTSendStr(unsigned char *s, unsigned char length);void UARTInit(void);void UARTSendByte(unsigned char dat);void InitTimer1(void);/****************主函数***************/void main(){int tempBuf;//温度读取值float temperature; //温度实际值EX1 = 1; //允许外部中断1中断PX1 = 1;EA = 1; //开总中断IT1 = 1; //外部中断1负跳变中断InitTimer0(); //初始化定时器InitTimer1();UARTInit();LCD_Init(); //初始化液晶DelayMs(200); //延时有助于稳定LCD_Clear(); //清屏DelayMs(200);LCD_DispStr(0, 0, " Please wait!!! ");LCD_DispStr(0, 1, "WIFI is starting");DelayS(2); UARTSendStr("AT+CIPMUX=1\r\n", 13); //打开多连接DelayMs(250);UARTSendStr("AT+CIPSERVER=1,8080\r\n", 21); //建立服务 端口号为8080DelayMs(250);LCD_DispStr(0, 0, " Welcome!!! ");LCD_DispStr(0, 1, "WIFI is ready!!!");DelayS(2); LCD_Clear();while (1){if (refreshHRFlag == 1) //刷新心率{EX1 = 0;TR0 = 0;refreshHRFlag = 0;heartRateBuf[datIndex] = timeCnt * 5; //算出间隔时间TH0 = 0xEE; //(65536 - 0.005*11059200/12) / 256TL0 = 0x00; //(65536 - 0.005*11059200/12) % 256 5mstimeCnt = 0; //50ms计数清零datIndex++;if (datIndex > 3) //记录到超过等于2次时间{datIndex = 1; //计数从1开始updateFlag = 1; //测得2次开始显示}EX1 = 1;TR0 = 1;}if (dispFlag == 1){if (updateFlag == 0) // 如果显示关 检测心率是否真实{heartRate = 0;}else // 如果显示开{heartRate = 60000 / ((heartRateBuf[1] >> 1) + (heartRateBuf[2] >> 1)); // 心率计算 2次求平均值}// EA = 0;DS18B20_Start(); // 启动温度检测DS18B20_GetTemp(&tempBuf); // 获取温度中间值// EA = 1;temperature = (float)tempBuf * 0.0625; // 温度值转换sprintf(dis0, "Heart:%3dbpm", (unsigned int)heartRate); // 打印当前心率LCD_DispStr(0, 0, dis0); // 显示心率sprintf(dis0, "Temp:%5.1f", temperature); // 打印当前温度LCD_DispStr(0, 1, dis0); // 显示温度LCD_DispOneChar(10, 1, 0xdf); // 显示℃LCD_DispOneChar(11, 1, 'C'); // 显示℃dispFlag = 0; // 更新标志清零}if (sendFlag == 1) //数据发送计数{sendFlag = 0;UARTSendStr("AT+CIPSEND=0,28\r\n", 17); //发送32位数据DelayMs(20);sprintf(dis0, "Heart:%3dbpm\r\n", (unsigned int)heartRate); // 发送当前心率UARTSendStr(dis0, 14); //发送数据内容DelayMs(20);sprintf(dis0, "Temp:%5.1f'C\r\n", temperature); // 发送温度UARTSendStr(dis0, 14); //发送数据内容DelayMs(20);}}}void EXT1() interrupt 2{if (timeCnt < 60) //当连续两次检测时间间隔小于60*5ms=300ms不处理{TR0 = 1; //开定时器}else{refreshHRFlag = 1;}}/*************定时器0初始化程序***************/void InitTimer0(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 = 0xEE; //(65536 - 0.005*11059200/12) / 256TL0 = 0x00; //(65536 - 0.005*11059200/12) % 256 5msPT0 = 1;//设置高优先级EA = 1; //总中断打开ET0 = 1;//定时器中断打开TR0 = 0;//定时器开关关闭}/*************定时器0中断服务程序***************/void Timer0_INT() interrupt 1{TH0 = 0xEE; //(65536 - 0.005*11059200/12) / 256TL0 = 0x00; //(65536 - 0.005*11059200/12) % 256 5mstimeCnt++; //每50ms一次计数if (timeCnt > 300) //当超过300*5ms=1.5s没有检测到信号停止显示{datIndex = 0; //数据个数清零timeCnt = 0; //10ms计数清零updateFlag = 0; //显示关TR0 = 0; //定时器关}}void InitTimer1(void){TMOD |= 0x10; //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TL1 = 0x00;//设置定时初始值TH1 = 0x4C;//设置定时初始值 50msEA = 1; //总中断打开ET1 = 1;//定时器中断打开TR1 = 1;//定时器开关打开}void Timer1_INT(void) interrupt 3{static unsigned char time_50ms = 0;TL1 = 0x00;//设置定时初始值TH1 = 0x4C;//设置定时初始值 50mstime_50ms++;if (time_50ms > 100){sendFlag = 1; //5s发送一次数据time_50ms = 0;} if (time_50ms % 20 == 0) //定时1s到{dispFlag = 1; //更新标志置位}}void UARTInit(void){SCON = 0x50; //串口方式1,1个起始位,1个停止位,8位数据，可变波特率//波特率115200TH2 = 0xFF;TL2 = 0xFD;RCAP2H = 0xFF; //(65536-(FOSC/32/BAUD)) BAUD = 115200 FOSC = 11059200RCAP2L = 0xFD;/********波特率发生器接收和发送相同波特率，内部控制*********/TCLK = 1; //发送时钟标志RCLK = 1; //接收时钟标志C_T2 = 0; //内部定时器EXEN2 = 0; //关闭定时器2中断TR2 = 1; //打开定时器2计数ES = 0; //关闭串口中断EA = 1; //打开总中断// PS = 1; //高优先级}void UARTSendByte(unsigned char dat){unsigned char time_out;time_out = 0x00;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 UARTSendStr(unsigned char *s, unsigned char length){unsigned char num = 0;while (num < length) //发送长度对比{UARTSendByte(*s); //放松单字节数据s++; //指针++num++; //下一个++}}// void UART_INT(void) interrupt 4 //串行中断服务程序// {//if (RI) //判断是接收中断产生// RI = 0; //标志位清零//if (TI) //如果是发送标志位，清零// TI = 0;// }
仿真演示视频：
/video/BV1H3411f7DN/
实物演示视频：
/video/BV1yR4y1f7Y5/
