WIDO连接Yeelink服务器问题排查 > 技术问答

下面的代码传到我的WIDO上，每次重新启动可以连接yeelink服务器一次，这个时候LED灯的状态是和服务器一样的。但是，这个时候我在服务器上修改了灯的状态，WIDO的灯还是不会变的，必须要重新启动一次才能获取服务器灯的状态。
下面是我的代码和COM口信息：com口信息：
Connected
Request DHCP
Yeelink:Try to connect the cloud server
api.yeelink.net -> 42.96.164.52Connecting...
Print get done.
{"timestamp":"2015-05-08T15:09:17","value":1
Turn on the LED

Disconnecting.
Yeelink:Try to connect the cloud server
api.yeelink.net -> 42.96.164.52Connecting...

代码：

#include <SPI.h>
#include <Adafruit_CC3000.h>
#include <ccspi.h>
#include <string.h>
#include "utility/debug.h"

#define WEBSITE       "api.yeelink.net"
#define APIKEY       "5b1fb34ee17278a360fc3772888888"
#define DEVICEID       "20888"
#define SENSORID1    "36888"

#define Wido_IRQ 7
#define Wido_VBAT  5
#define Wido_CS 10

Adafruit_CC3000 Wido = Adafruit_CC3000(Wido_CS, Wido_IRQ, Wido_VBAT, SPI_CLOCK_DIVIDER);
Adafruit_CC3000_Client WidoClient;

#define WLAN_SSID    "xx88888"
#define WLAN_PASS    "8888888"
#define WLAN_SECURITY WLAN_SEC_WPA2

uint32_t ip = 0;
unsigned long lastConnectionTime = 0;
boolean lastConnected = false;
const unsigned long postingInterval = 3*1000;
String returnValue = "";
boolean ResponseBegin = false;

void setup()
{
  pinMode(13, OUTPUT);
  Serial.begin(9600);
  Serial.println(F("Initialising the CC3000 ..."));
  if (!Wido.begin())
  {
Serial.println(F("Unable to initialise the CC3000! Check your wiring?"));
while(1);
  }

  char *ssid = WLAN_SSID;
  Serial.print(F("Attempting to connect to "));
  Serial.println(ssid);

  if (!Wido.connectToAP(WLAN_SSID, WLAN_PASS, WLAN_SECURITY))
  {
Serial.println(F("Failed!"));
while(1);
  }
  Serial.println(F("Connected"));

  Serial.println(F("Request DHCP"));
  while (!Wido.checkDHCP())
  {
delay(100);
  }
while (! displayConnectionDetails()) {
delay(1000);
  }
}

void loop()
{
  if (WidoClient.available())
  {
char c = WidoClient.read();

if (c == '{')
   ResponseBegin = true;
else if (c == '}')
   ResponseBegin = false;

if (ResponseBegin)
   returnValue += c;
  }

  if (returnValue.length() != 0 && (ResponseBegin == false))
  {
Serial.println(returnValue);

if (returnValue.charAt(returnValue.length() - 1) == '1')
{
   Serial.println("Turn on the LED");
   digitalWrite(13, HIGH);
}
else if(returnValue.charAt(returnValue.length() - 1) == '0')
{
   Serial.println("Turn off the LED");
   digitalWrite(13, LOW);
}
returnValue = "";
  }

  if (!WidoClient.connected() && lastConnected)
  {
Serial.println();
Serial.println("Disconnecting.");
WidoClient.close();
  }

  if(!WidoClient.connected() && (millis() - lastConnectionTime > postingInterval))
  {
Serial.print("Yeelink:");
getData();
  }
  lastConnected = WidoClient.connected();
}

void getData(void)
{
  if(!WidoClient.connected())
  {
Serial.println(F("Try to connect the cloud server"));
WidoClient.close();

Serial.print(F("api.yeelink.net -> "));
while (ip  ==  0)
{
   if (!Wido.getHostByName(WEBSITE, &ip))
   {
      Serial.println(F("Couldn't resolve!"));
   }
   delay(500);
}
Wido.printIPdotsRev(ip);
WidoClient = Wido.connectTCP(ip, 80);
  }

  if (WidoClient.connected())
  {
Serial.println("Connecting...");

WidoClient.fastrprint("GET /v1.0/device/");
WidoClient.fastrprint(DEVICEID);
WidoClient.fastrprint("/sensor/");
WidoClient.fastrprint(SENSORID1);
WidoClient.fastrprint("/datapoints");
WidoClient.fastrprintln(" HTTP/1.1");
WidoClient.fastrprintln("Host: api.yeelink.net");
WidoClient.fastrprint("Accept: *");
WidoClient.fastrprint("/");
WidoClient.fastrprintln("*");
WidoClient.fastrprint("U-ApiKey: ");
WidoClient.fastrprintln(APIKEY);
WidoClient.fastrprintln("Content-Length: 0");
WidoClient.fastrprintln("Connection: close");
WidoClient.fastrprintln("");

Serial.println("Print get done.");
  }
  else
  {
Serial.println("Connection failed");
Serial.println();
Serial.println("Disconnecting.");
WidoClient.close();
  }
  lastConnectionTime = millis();
}

bool displayConnectionDetails(void)
{
  uint32_t ipAddress, netmask, gateway, dhcpserv, dnsserv;

  if(!Wido.getIPAddress(&ipAddress, &netmask, &gateway, &dhcpserv, &dnsserv))
  {
Serial.println(F("Unable to retrieve the IP Address!\r\n"));
return false;
  }
  else
  {
Serial.print(F("\nIP Addr: ")); Wido.printIPdotsRev(ipAddress);
Serial.print(F("\nNetmask: ")); Wido.printIPdotsRev(netmask);
Serial.print(F("\nGateway: ")); Wido.printIPdotsRev(gateway);
Serial.print(F("\nDHCPsrv: ")); Wido.printIPdotsRev(dhcpserv);
Serial.print(F("\nDNSserv: ")); Wido.printIPdotsRev(dnsserv);
Serial.println();
return true;
  }
}

帮忙看下代码，WIDO启动后只能连接yeelink服务器一次的问题