ESP8266——OneNet的GET指令及C语言代码

深碍√TFBOYSˉ_ 2022-06-01 10:38 176阅读 0赞

GET指令的HTTP数据报文

GET /devices/你的设备号/datastreams/你的数据流名称 HTTP/1.1\r\n
    Host: api.heclouds.com\r\n
    api-key: 你的apikey\r\n\r\n

我更改了ESP8266的波特率，改成了4800的；

AT+UART=4800,8,1,0,0\r\n //更改esp8266的波特率

#include "reg52.h"
    
     typedef unsigned int uint;
     typedef unsigned char uchar;
    
    #define DATASIZE 110
    
    sbit LED = P2^0;
    
    uchar datalen = 0;
    uchar value;
    uchar cnt = 0;
    uchar recbuffer[DATASIZE];
    
    
    
    void Delay600ms()       //@12.000MHz
    {
        unsigned char i, j, k;
    
        i = 5;
        j = 144;
        k = 71;
        do
        {
            do
            {
                while (--k);
            } while (--j);
        } while (--i);
    }
    
    
    
    
    void UsartInit(void)    {
        SCON = 0x50;
        TMOD = 0x20;
        PCON = 0x80;
        TH1  = 0xF3;
        TL1  = 0xF3;
        ES   = 1;
        EA   = 1;
        TR1  = 1;
    }
    void SendUart(uchar value)  {
        ES = 0;
        SBUF = value;
        while(!TI);
        TI = 0;
        ES = 1;
    }
    
    void SendString(uchar *str) {
        while(*str != '\0') {
            SendUart(*str);
            str++;
        }
    
    
    }
    void wificonnection() {
        SendString("AT\r\n");
        //SendString("AT+CWMODE=1\r\n");
        //SendString("AT+RST");
        SendString("AT+CWJAP=\"****\",\"******\"\r\n");
        Delay600ms();
        Delay600ms();
    
    }
    
    void TCPconnection() {
        SendString("AT+CIPMUX=0\r\n");
        Delay600ms();
        Delay600ms();
        SendString("AT+CIPSTART=\"TCP\",\"183.230.40.33\",80\r\n");
        Delay600ms();
        Delay600ms();
        SendString("AT+CIPMODE=1\r\n");
        Delay600ms();
        Delay600ms();
        SendString("AT+CIPSEND\r\n");
        Delay600ms();
        Delay600ms();
    }
    
    void check() {
        SendString("GET /devices/******/datastreams/*** HTTP/1.1\r\n");
        SendString("Host: api.heclouds.com\r\n");
        SendString("api-key: ********************\r\n\r\n");
        Delay600ms();            
    }
    void main() {
        UsartInit();
        wificonnection();
        TCPconnection();
        while(1) {
            check();
            Delay600ms();
            if(value == '1') LED = 0;
            else if(value == '0') LED = 1;
        }
     }
    
    void Usart() interrupt 4 {
        uchar rec;
        if(RI != 0) {
            rec = SBUF;
            RI = 0;
        }
        if(rec == '{') cnt = 1;
        if(cnt == 1) {
            if(rec != '}') {
                recbuffer[datalen++] = rec;
            }
            else {
                cnt = 0;
                value = recbuffer[datalen - 1];
                //SendString(recbuffer);
                //SendString("\r\n");
                //SendUart(value);
                //SendString("\r\nok\r\n");
                datalen = 0;
            }   
        }
    }