🚀 WIFI Shield V3上传温湿度到YEELINK无数据？快速排查指南！

使用WIFI Shield V3上传温湿度到YEELINK，yeelink无数据

2014-10-221.6万

caihuiwei

UID: 29149

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本文介绍了使用WIFI Shield V3将DHT11传感器的温湿度数据上传到YEELINK平台时遇到无数据的问题。具体报错现象是数据未能成功上传。文章提供了详细的代码示例和故障排查步骤，特别是检查API请求的Content-Length字段与实际数据长度的一致性。通过修正Content-Length字段，可以确保数据正确上传。

弄了很久都没有弄好，现在只能找大家帮忙了，折腾好几个晚上了
程序：
#include <dht11.h>
dht11 DHT;
float TEMP;
int HUMI;
int thisLength;
int time=0;
void setup()
{
  Serial.begin(115200);
  pinMode(13,OUTPUT);
}
void loop()
{
  int chk = DHT.read(4);
  TEMP = DHT.temperature;
  HUMI = DHT.humidity;
  TEMP = (int(TEMP * 100.0)) / 100.0;
  char tempStr[20];
  floatToString(TEMP,tempStr);
  String data;
  data+="";
  data+=String(tempStr);
  int t=data.length();

  time=time+1;
  if (time%2==1)
  {
Serial.println("POST http://api.yeelink.net/v1.0/device/14899/sensor/25567/datapoints/add");
Serial.println("Host: api.yeelink.net");
  Serial.print("Accept: *");
Serial.print("/");
Serial.println("*");
Serial.print("U-ApiKey: ");
Serial.println("9d2b482044dfaa42ad59806af17ae5c3"); // 此处用你的APIKEY替代
Serial.print("Content-Length: ");
int thislength=17+t;
Serial.println(thislength);
Serial.println("Content-Type: application/x-www-form-urlencoded");
Serial.println("Connection: close");
Serial.println();
Serial.print("params={\"value\":");
Serial.print(TEMP);
Serial.println("}");
delay(1000);
   digitalWrite(13,LOW);
delay(5000);
  }

  else if(time%2==0)
  {
Serial.println("POST http://api.yeelink.net/v1.0/device/14899/sensor/25786/datapoints/add");
Serial.println("Host: api.yeelink.net");
  Serial.print("Accept: *");
Serial.print("/");
Serial.println("*");
Serial.print("U-ApiKey: ");
Serial.println("9d2b482044dfaa42ad59806af17ae5c3");
Serial.print("Content-Length: ");
int thislength=17+getLength(HUMI);
Serial.println(thislength);
Serial.println("Content-Type: application/x-www-form-urlencoded");
Serial.println("Connection: close");
Serial.println();
Serial.print("params={\"value\":");
Serial.print(HUMI);
Serial.println("}");
   delay(1000);
digitalWrite(13,LOW);
delay(5000);
  }
}

int getLength(int someValue) {
  // there's at least one byte:
  int digits = 1;
  // continually divide the value by ten,
  // adding one to the digit count for each
  // time you divide, until you're at 0:
  int dividend = someValue /10;
  while (dividend > 0) {
dividend = dividend /10;
digits++;
  }
  // return the number of digits:
  return digits;
}
  void floatToString(float in,char* out){
uint16_t Tc_100 = in*100;
uint8_t whole, fract;
whole = Tc_100/100 ; // separate off the whole and fractional portions
fract = Tc_100 % 100;
sprintf(out,"%d.%d",whole,fract);
delay (10000);
  }

COM的数据
POST http://api.yeelink.net/v1.0/device/14899/sensor/25567/datapoints/add
Host: api.yeelink.net
Accept: */*
U-ApiKey: 9d2b482044dfaa42ad59806af17ae5c3
Content-Length: 21
Content-Type: application/x-www-form-urlencoded
Connection: close
params={"value":28.00}
POST http://api.yeelink.net/v1.0/device/14899/sensor/25786/datapoints/add
Host: api.yeelink.net
Accept: */*
U-ApiKey: 9d2b482044dfaa42ad59806af17ae5c3
Content-Length: 19
Content-Type: application/x-www-form-urlencoded
Connection: close
params={"value":71}
POST http://api.yeelink.net/v1.0/device/14899/sensor/25567/datapoints/add
Host: api.yeelink.net
Accept: */*
U-ApiKey: 9d2b482044dfaa42ad59806af17ae5c3
Content-Length: 21
Content-Type: application/x-www-form-urlencoded
Connection: close
params={"value":28.00}

下面是wifi sheild的设置界面的截图，连续好几天都折腾到深夜，还是无果，求大家帮忙看一下

使用WIFI Shield V3上传温湿度到YEELINK，yeelink无数据图1

使用WIFI Shield V3上传温湿度到YEELINK，yeelink无数据图1

使用WIFI Shield V3上传温湿度到YEELINK，yeelink无数据图2

使用WIFI Shield V3上传温湿度到YEELINK，yeelink无数据图3

使用WIFI Shield V3上传温湿度到YEELINK，yeelink无数据图4

使用WIFI Shield V3上传温湿度到YEELINK，yeelink无数据图5

YEELINK界面

使用WIFI Shield V3上传温湿度到YEELINK，yeelink无数据图6

使用WIFI Shield V3上传温湿度到YEELINK，yeelink无数据图7

评论(5)

作者

感谢楼上几位的回复，可是试了都不行啊，还是没有数据，直接放弃这块板了，买了其他的板再试，DFROBOT的客服做的太垃圾了，东西卖高价，客服对你不理不睬的

咆哮的过来回复caihuiwei

买了什么板呢？试了有用我也去买！seeeduino的板和wifi都太难懂了，网上的例程都找不到

咆哮的过来

我买的是seeeduino的板和wifi shield（好像叫wifly吧），总是failed connect

我也是！数据都上传不了，好心塞

Youyou

试试这段代码：
[code]//没有传感器，上传一个循环的1-10的数字
int i;
//for yeelink api
#define APIKEY "*******" //改为自己的
#define DEVICEID **** //改为自己的
#define SENSORID **** //改为自己的
void postData(int thisData) {
Serial.print("POST /v1.0/device/");
Serial.print(DEVICEID);
Serial.print("/sensor/");
Serial.print(SENSORID);
Serial.print("/datapoints");
Serial.println(" HTTP/1.1");
Serial.println("Host: api.yeelink.net");
Serial.print("Accept: *");
Serial.print("/");
Serial.println("*");
Serial.print("U-ApiKey: ");
Serial.println(APIKEY);
Serial.print("Content-Length: ");
int thisLength = 10 + getLength(thisData);
Serial.print(thisLength);
Serial.println();
Serial.println("Content-Type: application/x-www-form-urlencoded");
Serial.println();
Serial.print("{"value":");
Serial.print(thisData);
Serial.println("}");
}
int getLength(int someValue) {
int digits = 1;
int dividend = someValue /10;
while (dividend > 0) {
dividend = dividend /10;
digits++;
}
return digits;
}
void setup(){
Serial.begin(115200);
}
void loop() {
for(i=1;i<10;i++){
postData(i);
delay(5*1000);
}
}[/code]
参考：http://blog.sina.com.cn/s/blog_54bf41d30101qpq4.html#commonComment

洞洞龟

POST 后面不用加 http://api.yeelink.net试试

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