16 replies to this topic

[Krokonoster]

Hi, Can someone point me to some good tutorial or posts re. the network settings of an Netduino Plus? Reason is that I could not get this simple (uuhm..supposedly) "Hello World" webserver to work. Just hangs at "using (Socket clientSocket = _socket.Accept())" After some searching I learned it might be that my boards IP settings does not go with my home network. So I tried giving my laptop and the board the same default gateway, etc, but just could not get it work. (Yes, unique IP to the board) Thanks for reading! Krok

[JerseyTechGuy]

Which version of the Netduino board are you using? Is this a ND+ or ND+2?

[Krokonoster]

Which version of the Netduino board are you using? Is this a ND+ or ND+2?

It's a ND+. Could not get a ND+2 here.

[JerseyTechGuy]

I haven't played with that example in a while. I believe in the code there is something like this to enable DHCP.

Microsoft.SPOT.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces()[0].EnableDhcp();
WebServer webServer = new WebServer();

I believe I was having a similar issue and had to change the code to something like this below to enable Dynamic DNS also. You can also un-comment the System.Diagnostics.Debug...... line to show if you have an IP and if DHCP is enabled.

var interf = NetworkInterface.GetAllNetworkInterfaces()[0];

interf.EnableDynamicDns();
interf.EnableDhcp();

//System.Diagnostics.Debug.WriteLine("Webserver is running on " + interf.IPAddress + " /// DHCP: " + interf.IsDhcpEnabled);

WebServer webServer = new WebServer();

[Krokonoster]

Thanks a lot for that Dave.

Not solved my issue though, but might be my own fault getting this error when hitting the line " interf.EnableDynamicDns();":
A first chance exception of type 'System.NotSupportedException' occurred in Microsoft.SPOT.Net.dll
An unhandled exception of type 'System.NotSupportedException' occurred in Microsoft.SPOT.Net.dll

The program '[4] Micro Framework application: Managed' has exited with code 0 (0x0).

Back to what I originally *thought* is the problem.
If I run ipconfig on my laptop, I get:
IPv4 address: 10.0.0.5
Subnet Mask: 255.255.255.0
Default Gateway: 10.0.0.2

I tried setting my board via MFDeploy to rather use that default gateway and give it a static IP of 10.0.0.11.
However after getting the above error and looking in MVDeploy again, I saw it was set back to the "default" settings.
So I changed it again, but alas, still gives the same error.

Oh, wait..above settings must be wrong since I cannot ping the board in WFDeploy now. On tinkering...
UPDATE..could not ping because had another demo running (also not working) and stopped at a breakpoint.

[JerseyTechGuy]

Check to see if your Mac address on the board is set using the MFdeploy tool.

[caEstrada]

Krokonoster, You are correct, the famous sample code is blocking, which means it hangs until receives a request via TCP. I tested another code -not written by me- where very smartly the blocking code is enclosed in a separate thread. That code permits you to run two threads but avoiding the blocking code from freezing other operations you might be running simultaneously. It is supposed a web server runs perhaps I/O monitoring or any other tasks and report information gathered only after the web server received a REQUEST. Let me know if you need the code. Regards,

[NooM]

i have made a simple sample too

forum link to it

[Krokonoster]

Thanks a lot for that, will be checking it out tonight. Day-time job of building web / mobile apps all of a sudden so boring compared to this!

[shobana]

Dave VanderWekke var interf = NetworkInterface. GetAllNetworkInterfaces ()[0]; interf. EnableDynamicDns(); interf.EnableDhcp(); //System.Diagnostics. Debug.WriteLine(" Webserver is running on " + interf. IPAddress + " /// DHCP: " + interf. IsDhcpEnabled); WebServer webServer = new WebServer(); hello Dave wer shud i include dis code in the program..

[JerseyTechGuy]

Dave VanderWekke  

 

var interf = NetworkInterface.GetAllNetworkInterfaces()[0];interf.EnableDynamicDns();interf.EnableDhcp();//System.Diagnostics.Debug.WriteLine("Webserver is runningon " + interf.IPAddress + " DHCP: " + interf.IsDhcpEnabled);WebServer webServer = new WebServer(); 

hello Dave wer shud i include dis code in the program..

 

If you have a simple program with a "Main()" method, you will place this in the main method so it will run when the code begins to execute.

[shobana]

thnx for reply dave . now i have problem with this coding i don know what wud be the reason, the program is for netduino v4.1 but m having netduino plus 2 v4.2, i upgraded the project version 4.1 to 4.2 if i run this program i get an ip called 192.168.1.4 but if i give this ip in the web browser no data is received from the device

 

i set the network cofiguration using MFDeploy with 192.168.1.4

subnet mask is 255.255.255.0

default gateway is 192.168.1.1

but dns primary i gave the default 8.8.8.8

dns secoundary 8.8.4.4

 in my pc i use one lan for that it shows ip 192.168.1.7

for device in the output window it shows 192.168.1.4

 

but if i put in the web browser the page is not opening

 

this is the source code

 

weserver.cs

 

using System; using System.Net.Sockets; using System.Net; using System.Threading; using System.Text; using Microsoft.SPOT; using Microsoft.SPOT.Hardware; using SecretLabs.NETMF.Hardware; using SecretLabs.NETMF.Hardware.Netduino;

namespace NetduinoGarageDoorOpener {   public class WebServer : IDisposable   {   private Socket socket = null;   //open connection to onbaord led so we can blink it with every request   private OutputPort led = new OutputPort(Pins.ONBOARD_LED, false);   private OutputPort Garage2CarOpener = new OutputPort(Pins.GPIO_PIN_D13, false);

  public WebServer()   {   //Initialize Socket class   socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);   //Request and bind to an IP from DHCP server   socket.Bind(new IPEndPoint(IPAddress.Any, 80));   //Debug print our IP address   Debug.Print(Microsoft.SPOT.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces()[0].IPAddress);   //Start listen for web requests   socket.Listen(10);   ListenForRequest();   }

  public void ListenForRequest()   {   while (true)   {   using (Socket clientSocket = socket.Accept())   {   //Get clients IP   IPEndPoint clientIP = clientSocket.RemoteEndPoint as IPEndPoint;   EndPoint clientEndPoint = clientSocket.RemoteEndPoint;   //int byteCount = cSocket.Available;   int bytesReceived = clientSocket.Available;   if (bytesReceived > 0)   {   //Get request   byte[] buffer = new byte[bytesReceived];   int byteCount = clientSocket.Receive(buffer, bytesReceived, SocketFlags.None);   string request = new string(Encoding.UTF8.GetChars(buffer));   string firstLine = request.Substring(0, request.IndexOf('n')); //Example "GET /activatedoor HTTP/1.1"   string[] words = firstLine.Split(' ');  //Split line into words   string command = string.Empty;   if (words.Length > 2)   {   string method = words[0]; //First word should be GET   command = words[1].TrimStart('/'); //Second word is our command - remove the forward slash   }   switch (command.ToLower())   {   case "activatedoor":   ActivateGarageDoor();   //Compose a response   string response = "I just opened or closed the garage!";   string header = "HTTP/1.0 200 OKrnContent-Type: text; charset=utf-8rnContent-Length: " + response.Length.ToString() + "rnConnection: closernrn";   clientSocket.Send(Encoding.UTF8.GetBytes(header), header.Length, SocketFlags.None);   clientSocket.Send(Encoding.UTF8.GetBytes(response), response.Length, SocketFlags.None);   break;   //   default:   //   //Did not recognize command   //   response = "Bad command";   //   header = "HTTP/1.0 200 OKrnContent-Type: text; charset=utf-8rnContent-Length: " + response.Length.ToString() + "rnConnection: closernrn";   //   clientSocket.Send(Encoding.UTF8.GetBytes(header), header.Length, SocketFlags.None);   //   clientSocket.Send(Encoding.UTF8.GetBytes(response), response.Length, SocketFlags.None);   //   break;   }   }   }   }   }   private void ActivateGarageDoor()   {   led.Write(true);   //Light on-board LED for visual cue   Garage2CarOpener.Write(true); //"Push" garage door button   Thread.Sleep(1000); //For 1 second   led.Write(false); //Turn off on-board LED   Garage2CarOpener.Write(false);  //Turn off garage door button   }

  #region IDisposable Members   ~WebServer()   {   Dispose();   }   public void Dispose()   {   if (socket != null)   socket.Close();   }   #endregion

  } }

 

program.cs

 

using System; using System.Net; using System.Net.Sockets; using System.Threading; using Microsoft.SPOT; using Microsoft.SPOT.Hardware; using SecretLabs.NETMF.Hardware; using SecretLabs.NETMF.Hardware.Netduino;

namespace NetduinoGarageDoorOpener {   public class Program   {   public static void Main()   {   Microsoft.SPOT.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces()[0].EnableDhcp();   WebServer webServer = new WebServer();   webServer.ListenForRequest();

  }

  } }

[shobana]

hello dave,

 

http://netduinohacki...-with-your.html visit dis link this code is not giving me the output..

 

i want interface android app with this board to controll the garage door open/close

[Chris Walker]

Hi shobana, If you ping the Netduino Plus from your PC (from the command line), do you get a response? If you run the SocketClient test app on your Netduino Plus, can you request data from a web server? [Be sure to remove the proxy server defaults from the sample.] Chris

[shobana]

HI CHRIS,

 when i ping my netduino plus 2 from pc itz not responding itz telling destination host is unreachable

 

mean while how to find out my netduino plus 2 ip can u jus tell me the solution to use the netduino plus 2 for internet(webserver transmit/receive) pls look into my above webservice.cs and program.cs coding whether itz working with ur netduino plus 2 or can u pls modify the codings and put in the post .zip file..

 

Thnx in advance chris..

[shobana]

HI CHRIS,

I am not able to connect my netduino plus 2 to erase and when i deploy the ERROR-CONFIG , FLASH file not able deploy itz telling unable to deploy,

 

hope i don know the proper procedure

 

first i hold the button n plugged into the micro usb to pc when i ping in mf deploy the device doesnt appears m not able to erase and not able to deploy the browsed EROR_CONFIG EROR_FLASH files, if i remove it n connect then the device is showing but could'nt deploy the hex files what is reason pls tel me the solution.. 

 

can u pls tel me the proper procedure for netduino plus 2 to do the above settings..

[sebswed]

I used the following tutorial to get my IP from my Netduino +2 http://wiki.netduino...duino-Plus.ashx Maybe you could try a different webserver application? I downloaded many examples and played a lot before I got it working (14 hours of reading, copy, pasting and testing). The webserver application that I have works for me but I don't know if it will work for you, it never hurts to try. It might feel like a slope learning curve but its like a puzzle. You have to find the right piece to make your project work.

 

My wife studies and lives in a different city and will be there for 2 years. I figured I could play Skyrim for 2 years (I love that game) or start learning programming, I chose programming