非常感谢你们。我刚刚开始使用Arduino无线传感器项目，而且我已经打了一个线索墙。我很感激任何见解或帮助解决我的项目。
我正在使用Arduino Mega，使用Wifi Shield尝试将4个频道（所有花车）上传到我的Xively Feed。我正在使用基本教程脚本的修改形式（底部的代码）。我验证并成功上传。当我运行电路板时，初始调试信息看起来不错。当我尝试使用Xively客户端库执行put或get时，我得到一个错误（ret = -1，没有可用的套接字，并且获取了http错误）。我也在底部附上了错误的序列日志。
我已经采取了一些故障排除步骤。我已经重新下载了所有的xively库和Wifi库。我认为手动设置DNS服务器（8.8.8.8）可能会有所帮助。我甚至导入了整个arduino库（虽然我认为不应该需要它）来获得DNS功能。它似乎没有什么区别，所以我把它作为故障排除面包屑留下了。另外作为故障排除步骤，我添加了一个Xively client.get，看看我是否可以拉动而不是推动。这产生了HTTP错误。我还为我的项目添加了一个公共开放的api密钥并尝试了（而不是私有密钥）。仍然没有快乐。
虽然我已成功连接到我的wifi，但它无法与任何服务建立真正的连接。我希望我错过了一些非常明显的步骤。我真的可以用一个有用的线索让我再次走上正轨。谢谢！
Micah Wyenn
#include <Dhcp.h>
#include <Dns.h>
#include <Ethernet.h>
#include <EthernetClient.h>
#include <EthernetServer.h>
#include <EthernetUdp.h>
#include <util.h>
/*
Hot Tub Monitor
--- If you are only calibrating your sensor, use the calibrate sensor script. This is for submerged operation.
This script will allow you to test to ensure the temp, Ph, and ORD sensors are operating and are calibrated correctly.----
This script was written for the MEGA 2560 with the wireless shield, connecting in to Xively's cloud graph service
The Mega 2560 with the Wireless shield and Probes uses the following pins:
* SPI bus interface
* Onboard MicroSD card reader (uses SD Lib) on digital pin 4
* Digital Pins 7, 50, 51, 52, and 53 are reserved and shouldn't be used
* Digital Pin 18 is set to OUTPUT to power the temp probe on/off
* Atlas Scientific Temp Sensor input on Analog Uno pin A4
* Phidgets Ph Sensor input on Analog Uno pin A2
* Phidgets ORD Sensor input on Analog Uno pin A0
*/
// Libraries in use
#include <SPI.h>
#include <WiFi.h>
#include <b64.h>
#include <HttpClient.h>
#include <CountingStream.h>
#include <Xively.h>
#include <XivelyClient.h>
#include <XivelyDatastream.h>
#include <XivelyFeed.h>
#include <WiFiClient.h>
#include <WiFiServer.h>
#include <WiFiUdp.h>
// setting up some of the globals
const int TEMPPIN = 4;
const int PHPIN = 1;
const int ORPPIN = 0;
boolean isDebugEnabled = true; //setting up the debug state
int status = WL_IDLE_STATUS;
char ssid[] = "<security snip>"; // your network SSID (name)
char pass[] = "<security snip>"; // your network password (use for WPA, or use as key for WEP)
// My Xively key to let you upload data
char xivelyKey[] = "<security snip>";
// My xively feed ID
#define xivelyFeed <security snip>
// My datastreams
char myWirelessStrStream[] = "MonitorWirelessStrength";
char myORPStream[] = "ORP";
char myPhStream[] = "Ph";
char myTempStream[] = "Temp";
// Creating the datastreams
XivelyDatastream datastreams[] = {
XivelyDatastream(myWirelessStrStream, strlen(myWirelessStrStream), DATASTREAM_FLOAT),
XivelyDatastream(myORPStream, strlen(myORPStream), DATASTREAM_FLOAT),
XivelyDatastream(myPhStream, strlen(myPhStream), DATASTREAM_FLOAT),
XivelyDatastream(myTempStream, strlen(myTempStream), DATASTREAM_FLOAT)
};
XivelyFeed feed(xivelyFeed, datastreams, 4);
//starting the Xively client
WiFiClient client;
XivelyClient xivelyclient(client);
void setup() {
if (isDebugEnabled) { //setting up the debug stream
Serial.begin(9600);
Serial.println("Hot Tub Monitor Debug Stream Starting");
Serial.println("-----------------------------------");
}
pinMode(12,OUTPUT); //this pin turns on the temp sensor - battery saver to have this on/off switchable
// connect to the wifi
// check for presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue:
while(true);
}
//Connect to the wifi network
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network:
status = WiFi.begin(ssid, pass);
// wait 10 seconds for connection:
delay(10000);
}
Serial.println("You're connected to the network");
Serial.println(status);
//printCurrentNet();
printWifiData();
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.println(rssi);
}
void loop() {
// report on the WiFi Signal strength
long rssi = WiFi.RSSI();
if (isDebugEnabled) { //send the signal str to Xively
Serial.print("Sending RSSI to Xively: ");
Serial.println(rssi);
}
// print the received signal strength:
datastreams[0].setFloat(rssi);
// get the temp from our Atlas Sci probe
float tempC=get_temp();
float tempF = (tempC*1.8)+32;
datastreams[1].setFloat(tempF);
// debugging info for temp
if (isDebugEnabled) { //send the temp to Xively
Serial.print("Sending Temp to Xively: ");
Serial.println(tempF);
}
// get the Ph from our phidget's monitor
float Ph=get_Ph(tempC);
datastreams[2].setFloat(Ph);
// debugging info for Ph
if (isDebugEnabled) { //send the Ph to Xively
Serial.print("Sending Ph to Xively: ");
Serial.println(Ph);
}
// get the Ph from our phidget's monitor
float ORP=get_ORP();
datastreams[3].setFloat(ORP);
// debugging info for Ph
if (isDebugEnabled) { //send the Ph to Xively
Serial.print("Sending ORP to Xively: ");
Serial.println(ORP);
}
Serial.println("Uploading it to Xively");
int ret = xivelyclient.put(feed, xivelyKey);
Serial.print("xivelyclient.put returned ");
Serial.println(ret);
delay(10000);
}
float get_Ph(float tempC) {
float Ph = analogRead(PHPIN);
Ph = 7 -((2.5 - (Ph/200))/((0.257179 + 0.0000941468)*tempC)); // convert to the ph
return Ph;
}
float get_ORP() {
float ORP = analogRead(ORPPIN);
ORP = (2.5 - (ORP/200))/1.037; // convert to proper ORP
return ORP;
}
float get_temp(){
float v_out;
float Temp;
digitalWrite(A4, LOW); //wtf is this for?
digitalWrite(12, HIGH);
delay(2);
v_out = analogRead(4);
digitalWrite(12, LOW);
v_out*=.0048;
v_out*=1000;
Temp=0.0512 * v_out -20.5128;
return Temp;
}
void printWifiData() {
// print your WiFi shield's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
Serial.println(ip);
}
-----------------------------Error Log Output------------------------------------------
Hot Tub Monitor Debug Stream Starting
-----------------------------------
Attempting to connect to WPA SSID: LionsGate
You're connected to the network
3
IP Address: 192.168.1.137
192.168.1.137
signal strength (RSSI):-27
Sending RSSI to Xively: -27
Sending Temp to Xively: 227.32
Sending Ph to Xively: 6.98
Sending ORP to Xively: 0.49
Uploading it to Xively
xivelyclient.put returned -1
HTTP Error
Sending RSSI to Xively: -27
Sending Temp to Xively: 154.33
Sending Ph to Xively: 6.94
Sending ORP to Xively: 0.87
Uploading it to Xively
xivelyclient.put returned -1
HTTP Error
Sending RSSI to Xively: -27
Sending Temp to Xively: 147.25
Sending Ph to Xively: 6.94
Sending ORP to Xively: 0.83
Uploading it to Xively
No Socket available
xivelyclient.put returned -1
No Socket available
HTTP Error
Sending RSSI to Xively: -27
Sending Temp to Xively: 149.91
Sending Ph to Xively: 6.94
Sending ORP to Xively: 0.87
Uploading it to Xively
No Socket available
xivelyclient.put returned -1
No Socket available
HTTP Error
答案 0 :(得分：1)
感谢您提供如此多的问题背景信息，这使您可以轻松测试并找出问题所在。只要你连接到你的wifi，看起来你的代码应该很好，除了所有的导入。我所做的只是删除你在开始时的额外进口。关于设置自己的DNS服务器，您可以这样做，但这可能是导致您的问题的原因。如果您担心DNS，最好手动设置IP而不是依赖DNS。
以下是我从代码中复制的内容的重写版本。希望它能与您的网络和Feed一起使用。我在UNO和Mega ADK（我只有Mega）上使用官方Arduino WiFi盾测试了它，并且它在两者上工作。
// Libraries in use
#include <SPI.h>
#include <WiFi.h>
#include <HttpClient.h>
#include <Xively.h>
/*
Hot Tub Monitor
--- If you are only calibrating your sensor, use the calibrate sensor script. This is for submerged operation.
This script will allow you to test to ensure the temp, Ph, and ORD sensors are operating and are calibrated correctly.----
This script was written for the MEGA 2560 with the wireless shield, connecting in to Xively's cloud graph service
The Mega 2560 with the Wireless shield and Probes uses the following pins:
* SPI bus interface
* Onboard MicroSD card reader (uses SD Lib) on digital pin 4
* Digital Pins 7, 50, 51, 52, and 53 are reserved and shouldn't be used
* Digital Pin 18 is set to OUTPUT to power the temp probe on/off
* Atlas Scientific Temp Sensor input on Analog Uno pin A4
* Phidgets Ph Sensor input on Analog Uno pin A2
* Phidgets ORD Sensor input on Analog Uno pin A0
*/
// setting up some of the globals
const int TEMPPIN = 4;
const int PHPIN = 1;
const int ORPPIN = 0;
boolean isDebugEnabled = true; //setting up the debug state
int status = WL_IDLE_STATUS;
char ssid[] = "LMI-GUEST"; // your network SSID (name)
char pass[] = "2009LMIGuest!"; // your network password (use for WPA, or use as key for WEP)
// My Xively key to let you upload data
char xivelyKey[] = "<snip for security>";
// My xively feed ID
#define xivelyFeed 121601
// My datastreams
char myWirelessStrStream[] = "MonitorWirelessStrength";
char myORPStream[] = "ORP";
char myPhStream[] = "Ph";
char myTempStream[] = "Temp";
// Creating the datastreams
XivelyDatastream datastreams[] = {
XivelyDatastream(myWirelessStrStream, strlen(myWirelessStrStream), DATASTREAM_FLOAT),
XivelyDatastream(myORPStream, strlen(myORPStream), DATASTREAM_FLOAT),
XivelyDatastream(myPhStream, strlen(myPhStream), DATASTREAM_FLOAT),
XivelyDatastream(myTempStream, strlen(myTempStream), DATASTREAM_FLOAT)
};
XivelyFeed feed(xivelyFeed, datastreams, 4);
//starting the Xively client
WiFiClient client;
XivelyClient xivelyclient(client);
void setup() {
if (isDebugEnabled) { //setting up the debug stream
Serial.begin(9600);
Serial.println("Hot Tub Monitor Debug Stream Starting");
Serial.println("-----------------------------------");
}
pinMode(12,OUTPUT); //this pin turns on the temp sensor - battery saver to have this on/off switchable
// connect to the wifi
// check for presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue:
while(true);
}
//Connect to the wifi network
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network:
status = WiFi.begin(ssid, pass);
// wait 10 seconds for connection:
delay(10000);
}
Serial.println("You're connected to the network");
Serial.println(status);
//printCurrentNet();
printWifiData();
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.println(rssi);
}
void loop() {
// report on the WiFi Signal strength
long rssi = WiFi.RSSI();
if (isDebugEnabled) { //send the signal str to Xively
Serial.print("Sending RSSI to Xively: ");
Serial.println(rssi);
}
// print the received signal strength:
datastreams[0].setFloat(rssi);
// get the temp from our Atlas Sci probe
float tempC=get_temp();
float tempF = (tempC*1.8)+32;
datastreams[1].setFloat(tempF);
// debugging info for temp
if (isDebugEnabled) { //send the temp to Xively
Serial.print("Sending Temp to Xively: ");
Serial.println(tempF);
}
// get the Ph from our phidget's monitor
float Ph=get_Ph(tempC);
datastreams[2].setFloat(Ph);
// debugging info for Ph
if (isDebugEnabled) { //send the Ph to Xively
Serial.print("Sending Ph to Xively: ");
Serial.println(Ph);
}
// get the Ph from our phidget's monitor
float ORP=get_ORP();
datastreams[3].setFloat(ORP);
// debugging info for Ph
if (isDebugEnabled) { //send the Ph to Xively
Serial.print("Sending ORP to Xively: ");
Serial.println(ORP);
}
Serial.println("Uploading it to Xively");
int ret = xivelyclient.put(feed, xivelyKey);
Serial.print("xivelyclient.put returned ");
Serial.println(ret);
delay(10000);
}
float get_Ph(float tempC) {
float Ph = analogRead(PHPIN);
Ph = 7 -((2.5 - (Ph/200))/((0.257179 + 0.0000941468)*tempC)); // convert to the ph
return Ph;
}
float get_ORP() {
float ORP = analogRead(ORPPIN);
ORP = (2.5 - (ORP/200))/1.037; // convert to proper ORP
return ORP;
}
float get_temp(){
float v_out;
float Temp;
digitalWrite(A4, LOW); //wtf is this for?
digitalWrite(12, HIGH);
delay(2);
v_out = analogRead(4);
digitalWrite(12, LOW);
v_out*=.0048;
v_out*=1000;
Temp=0.0512 * v_out -20.5128;
return Temp;
}
void printWifiData() {
// print your WiFi shield's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
Serial.println(ip);
}
希望这有帮助。