WIFI发送温度（STC51单片机）.zip

#include <REGX52.H> #include <intrins.h> sbit temperature=P1^0; #define lcdrs P2_0 #define lcdrw P2_1 #define lcden P2_2 #define beep P3_6 unsigned char jtmpvl[19]; unsigned char receive; bit flag; int judge; unsigned char a; void uart_init(); void uart_send_data(unsigned char Data); void uart_send_string(unsigned char *s); void delay(unsigned int z); void ds18b20_init(void); void ds18b20_wait(void); bit ds18b20_read_bit(void); unsigned char ds18b20_read_byte(void); void ds18b20_write_byte(unsigned char dat); void ds18b20_send_change_command(void); void ds18b20_send_read_command(void); int ds18b20_get_temperature(void); void lcd_write_com(unsigned char com); void lcd_write_data(unsigned char date); void lcd_init(); void main(){ int tmpvl; receive=0; judge = 50; uart_init(); lcd_init(); delay(50); uart_send_string("AT+CIPMUX=1\r\n"); delay(100); uart_send_string("AT+CIPSERVER=1,8081\r\n"); delay(100); uart_send_string("AT+CIPSTO=2880\r\n"); delay(5000); ds18b20_send_change_command(); while(1){ tmpvl=ds18b20_get_temperature(); uart_send_string("AT+CIPSEND=0,2\r\n"); delay(10); uart_send_data(0x30+tmpvl%100/10); delay(5); uart_send_data(0x30+tmpvl%10); delay(1000); lcd_write_com(0x87); lcd_write_data(0x30+tmpvl%100/10); lcd_write_com(0x88); lcd_write_data(0x30+tmpvl%10); lcd_write_com(0x89); lcd_write_data('C'); ds18b20_send_change_command(); // lcd_write_com(0x8A); // lcd_write_data(jtmpvl[1]); // lcd_write_com(0x8B); // lcd_write_data(jtmpvl[2]); delay(1000); ds18b20_send_change_command(); if(tmpvl > judge) { beep = 0; } } } void uart_init(){ PCON &= 0X7F;//0111.1111 SCON = 0X50; TMOD = 0X20; TH1 = 0XFD;//9600bps TL1 = 0XFD; ET1 = 0; TR1 = 1; REN = 1; SM0 = 1; SM1 = 1; EA = 1; ES = 1; } void ser() interrupt 4 { RI = 0; a = SBUF; if(a == '$') { // jtmpvl[1]='1'; // jtmpvl[2]='2'; judge = 28; } // if(flag == 1) // { // jtmpvl[receive] = a; // receive++; // } // if(receive == 3) // { // receive = 0; // flag = 0; // } } void uart_send_data(unsigned char Data){ ES = 0; TI = 0; SBUF = Data; while(TI == 0); TI = 0; ES = 1; } void uart_send_string(unsigned char *s){ while(*s){ uart_send_data(*s++); } } void delay(unsigned int z){ unsigned int x,y; for(x=z;x>0;x--){ for(y=110;y>0;y--); } } void ds18b20_init(void){ unsigned int i; temperature=0; i=100; while(i>0) i--; temperature=1; i=4; while(i>0) i--; } //DS18B20等待函数 void ds18b20_wait(void){ unsigned int i; while(temperature); while(~temperature);//IO口电平取反 i=4; while(i>0) i--; } //DS18B20读取一位数据 bit ds18b20_read_bit(void){ unsigned int i; bit b; temperature=0; i++; temperature=1; i++; i++; b=temperature; i=8; while(i>0) i--; return b; } //DS18B20读取数据 unsigned char ds18b20_read_byte(void){ unsigned int i; unsigned char j,dat; dat=0; for(i=0;i<8;i++){ j=ds18b20_read_bit(); dat=(j<<7)|(dat>>1); } return dat; } //DS18B20写一位函数 void ds18b20_write_byte(unsigned char dat){ unsigned int i; unsigned char j; bit b; for(j=0;j<8;j++){ b=dat&0x01; dat>>=1; if(b){ temperature=0; temperature=1; i=8; while(i>0) i--; } else{ temperature=0; i=8; while(i>0) i--; temperature=1; i++; i++; } } } //DS18B20发送变换命令 void ds18b20_send_change_command(void){ ds18b20_init(); ds18b20_wait(); delay(1); ds18b20_write_byte(0xcc); ds18b20_write_byte(0x44); } //DS18B20发送读取命令 void ds18b20_send_read_command(void){ ds18b20_init(); ds18b20_wait(); delay(1); ds18b20_write_byte(0xcc); ds18b20_write_byte(0xbe); } //DS18B20读取温度 int ds18b20_get_temperature(void){ unsigned int tmpvalue; int value; float t; unsigned char low,high; ds18b20_send_read_command(); low=ds18b20_read_byte(); high=ds18b20_read_byte(); tmpvalue=high; tmpvalue<<=8; tmpvalue|=low; value=tmpvalue; t=value*0.0625; value=t+(value>0?0.5:-0.5);//判断VALUE的值，如果大于0，则加0.5否则-0.5 return value; } void lcd_write_com(unsigned char com) { lcdrs=0; P0=com; delay(5); lcden=1; delay(5); lcden=0; } void lcd_write_data(unsigned char date) { lcdrs=1; P0=date; delay(5); lcden=1; delay(5); lcden=0; } void lcd_init() { lcdrs = 0; lcdrw = 0; lcden=0; lcd_write_com(0x38); lcd_write_com(0x0e); lcd_write_com(0x06); lcd_write_com(0x01); lcd_write_com(0x80+0x10); }