Question

我正在使用arduino和esp8266 wifi模块将数据上传到事物spaek网站。我在instructables网站上发现了这个代码，以便将随机数据上传到讲话网站，但它在案例3中给出了错误。

这是代码

#include <SoftwareSerial.h>
#define DEBUG true
#define RX 2
#define TX 3

String HOST = "api.thingspeak.com";
String PORT = "80";
String AP = "AP NAME";
String PASS = "AP PASSWORD";


String API = "---------";
String field = "field1";

int countTrueCommand;
int countTimeCommand; 
boolean found = false; 
int valSensor = 1;

SoftwareSerial esp8266(RX,TX); 
void setup() {

Serial.begin(9600);
esp8266.begin(115200);

sendCommand("AT",5,"OK");
sendCommand("AT+CWMODE=1",5,"OK");
sendCommand("AT+CWJAP=""+ AP +"",""+ PASS +""",15,"OK");
countTrueCommand = 0;

}

void loop() {

String getData = "GET /update?api_key="+ API +"&"+ field 
+"="+String(valSensor);
switch(countTrueCommand) {

case 0: sendCommand("AT",5,"OK");break;
case 1: sendCommand("AT+RST",10,"invalid");break;
case 2: sendCommand("AT+CIPMUX=1",5,"OK"); break;
case 3: sendCommand("AT+CIPSTART=0,"TCP","+ HOST +","+ PORT,15,"OK"); 
break;
case 4: sendCommand("AT+CIPSEND=0," +String(getData.length()+4),4,">"); 
break;
case 5: esp8266.println(getData);delay(1500);countTrueCommand++; break;
case 6: sendCommand("AT+CIPCLOSE=0",5,"OK"); break;
case 7:

Serial.println(valSensor);
Serial.print(getData);
Serial.print(",");
Serial.println(getData.length());
valSensor = random(100000); // random value, change with sensor value if 
using sensor
countTrueCommand = 0;
delay(10000);
break;

}

}
void sendCommand(String command, int maxTime, char readReplay[]) {

Serial.print(countTrueCommand);
Serial.print(". at command => ");
Serial.print(command);
Serial.print(" ");
while(countTimeCommand < (maxTime*1))

 {

 esp8266.println(command);//at+cipsend
 if(esp8266.find(readReplay))//ok
 {

  found = true;
  break;

  }
  countTimeCommand++;

  }
  if(found == true)
  {

  Serial.println("OYI");

  countTrueCommand++;
  countTimeCommand = 0;

  }
  if(found == false)
   {

   Serial.println("Fail");
   countTrueCommand = 0;
   countTimeCommand = 0;

   }
   found = false;

}

我在案例3中遇到错误 退出状态1 无法找到字符串文字运算符＆＃34;运算符＆＃34;＆＃34; TCP＆＃39; 我该如何解决？

Answer 1

该行不正确，请将其替换为：

    sendCommand("AT+CIPSTART=0,\"TCP\",\""+ HOST +"\","+ PORT,15,"OK"); //Start connection as client

如何使用arduino和esp8266将数据上传到thingsSpaek？

1 个答案: