I've started with a clean version of NeonMika Webserver. I've made the appropriate changes to run on the Netduino Plus 2 and have deployed and tested it on the Netduino Plus 2.

You can download the modified project from this DropBox Link (sorry was too big to post here).

 

you're the man! thanks again Dave!

I know Get requests are typically lighter than Postbut have you tried to use Post to populate your database? I don't know how large your files are but it might be worth a shot. If the files are large then you could create smaller files. This would reduce the HTTP activity anyway with fewer and larger requests.

Can you post an update of your source? I'm wondering if something else could be rearranged. Also have you written a console application that performs the same action as your Netduino application code? I'm wondering if your server that handles the http request might be the bottle neck. It probably isn't but it's worth ruling that out while you are testing for performance. I would time these requests and response times.

By implement Idisposable I mean can you wrap it with a using statement like you do with the filestream object? Did you try to use a simple string array with only the size that you need rather than using array list? I think this should reduce memory used. Because array list is built on a basic array and a basic array only has memory allocated for the size it needs to be rather than having to grow dynamically with each add.

Hmm, let me think about this. I'll try to make a sample app to reproduce, see if I can optimize anything for you.

http://www.dotnetper...om/array-memory

We might be splitting hairs but check this article out. You might see a bump in performance by using a standard string array so that memory doesn't have to be allocated and indexes have their positions changed when items are added.

Just curious, Have you tried to use the standard .Net HTTP request and response objects instead of the simple socket classes? I would be curious how the application behaves then. An idea I have is instead of creating completely new HTTP objects and socket connections for each line of data, which sounds expensive. Have you tried to only create one HTTP request and use that over the life of your application And have your foreach just use the same HTTP object and socket object and only changing the query string values? Have you used a tool like red gate memory profiler or performance profiler? These tools have been helpful for me in the past.

Maybe you could try to just have the Netduino copy the files to a network share and then have a scheduled console application that reads the files and executes the http requests.

okay, thats fine. just refactor your code so the code below is okay execute once.

 

SimpleSocket Socket = new WiFlySocket(strRemoteHost, 80, WifiModule);            HTTP_Client WebSession = new HTTP_Client(Socket);            

 

 

Then put this part in your "foreach"

 

try            {                HTTP_Client.HTTP_Response Response = WebSession.Get("/default.aspx?" + queryStringData);                Debug.Print("value: " + queryStringData);            }

 

I am curious about what result you will get. Oh and just for laughs remove all the try catches for now, just keep it simple. I can't imagine you are sending that much data, if you don't mind, what does your typical fine line look like and what size is the file?

Just init your string array to be the count of lines in your file. Then populate, see what memory looks like

Does the http response class you are using implement Idisposable? If so, wrap it with using. Just another thought

No problem, let me look at this code tonight, and give it more thought, Throughout the day I like a good challenge. Wow that's crazy removing the try catch increased the request size! Never heard anything like that. I know that throwing exceptions can be expensive but not having a try catch in the code that doesn't throw errors.. Confusing I'll get back to you.

do you have any code of how to utilize your lib? The links solution is just the lib not example project.

Great thanks, hopefully I can get something put together!

Okay, thanks Dave. I appreciate it

hey guys, I'm curious. Is this still the best option to play back audio files on a Netduino plus 2? I was hoping to be able to play wav or MP3 files from the SD card already on the duino. Ultimately, I want to output audio to an audio jack and put that into an input on other device. Is that possible without another component ?

If I have DHCP disabled it looks like it launches but didn't respond. If I have DHCP enabled I get the message below.

 

Webserver is running on 0.0.0.0 /// DHCP: True

A first chance exception of type 'System.Net.Sockets.SocketException' occurred in Microsoft.SPOT.Net.dll

Exception was thrown: System.Net.Sockets.SocketException

A first chance exception of type 'System.Net.Sockets.SocketException' occurred in Microsoft.SPOT.Net.dll

Exception was thrown: System.Net.Sockets.SocketException

A first chance exception of type 'System.Net.Sockets.SocketException' occurred in Microsoft.SPOT.Net.dll

Exception was thrown: System.Net.Sockets.SocketException

A first chance exception of type 'System.Net.Sockets.SocketException' occurred in Microsoft.SPOT.Net.dll

Exception was thrown: System.Net.Sockets.SocketException

You are looking at the Netduino as a remote storage device and this is not what the Netduino is.  When the Netduino is powered, the application stored on the Netduino is running.  If the app is written to run in loop mode it continues to execute without end.  If there is no loop the application will run when powered up and run to it's end.

 

You can run something like the NeonMika web server on the Netduino which will host a webpage that a user can access via the Netduino's IP or NetBios name.  This web application can then allow a user to make changes on the webpage and submit the pages which use jquery and .NET to receive and store the settings and update the settings.xml file.

 

I am not sure what exactly you are looking to accomplish, but this sounds like the solution you may be looking for.

 

Dave, Question, I'm running the latest firmware on my ND Plus 2, The Mika webserver doesn't seem to work out of the box for me, lots of build errors. Do you know of any examples or references that have actual working examples for the Mika webserver?

not sure what I"m doing wrong, I downloaded  and opened the soution in location

 

NeonMika.WebserverExecuteableNeonMikaWebserver

 

it builds but is using the 4.1 framework not 4.2, if I update the projects in the soution to be 4.2 I'm getting alot of build errors. where is the "WebServer" solution you are referencing?

Awesome, thanks for the link Dave. I definitely need to learn more about the MF. Been living in the Web and Windows world too long.

when I download the zip from http://neonmikawebserver.codeplex.com/

 

I get a zip with folders called "executable", and "framework" among others.

 

The project in builds but is referencing 4.1 not the 4.2 MF.

If you run the ND+2 version (From the NeonMika thread post #91) it works right out of the box.  I actually did an install tonight to work on a new project.  Took the WebServer solution, built and deployed it (after having changed the IP address and other network settings in the program.cs file). After typing the IP in my browser the command webpage came right up showing all the commands you can run.

 

Hi Dave, Sorry to ping you again. I guess i'm the only person in the world that thinks the NeonMika webserver is not easy to get up and running. It looks like its running but when I try to go to the IP in the debug window, I get "connection reset" or "taking too long to respond". I have attached a screen shot of what I'm seeing. I get the NeonMika webserver sending response back. I have looked at the code plex site and it looks like the little code examples that were there are gone now. I remember seeing examples before. Anyways, I have found the most basic of webserver examples and can get the ND to send back content responses to the browser. Any ideas?

 

 

 

do you have the link to post 91? I can't seem to find it...

Nevermind, I HAVE NO CLUE what I did wrong in my application but ended up getting the line below to work. I created a new project and add the WebServer reference and that one line of code and it started working.

 

What I'm really confused about is I had to abandon my first project because it started saying "hardware error: check your device", this error came up after adding and removing references several times and I couldn't resolve so I started another project and its working.

 

 Server WebServer = new Server(PinManagement.OnboardLED, 80, true);

Hello,

 

I apologize if this is a newb question.

 

Is it possible to have a Netduino execute an "AutoPlay" (similiar to having an auto.inf on a cd or usb stick) feature when connected to a PC?

 

I'm ultimately wanting to launch an HTML file hosted on the SD card or even launch a windows application hosted on the SD card so the user can make changes to the predefined settings xml file on the SD card. is this possible? I would prefer to have it hosted on the SD card for the Netduino so the user doesn't have to install anything on their PC.

 

Am I asking for too much here?