How to run TestProject on Linux

[Felipe]

Hello,
I am trying to connect the EV3 through WiFi on Linux.
I have downloaded “TestProject” and tested it using Monodevelop.

I just replaced “usb” to “wifi” on Program.cs.
From my debug it seems that it doesn’t work in the following line on Network.cs.
bytes = listener.Receive( ref groupEP)

Do I need to modify the program to run it on Linux (Ubuntu 64 bit)?

BTW, the TestProject worked on Windows 8.1, 64 bit using WiFi.

Thanks,
FC

[Anders Søborg]

Hi

Thanks for trying MonoBrick

Do I need to modify the program to run it on Linux (Ubuntu 64 bit)?

No modifying the project should not be necessary.

Is the EV3 connected to the WiFi network?

Anders

[Felipe]

Hi, thanks for your reply.

Yes, the EV3 is connected to the WiFi network.
I can log in to the EV3 through telnet on Terminal in Ubuntu.
Also I can get echo on my Ubuntu from the EV3 through TCP using a simple C program.
I am wondering if this is an issue with my settings etc. in Monodevelop on Ubuntu….. 🙁

Thanks,
FC

[Anders Søborg]

Hi

Try to check out this guide. As you can see the EV3 broadcasts UDP messages on the WiFi network. Are your computer blocking these messages somehow?

Anders

[Felipe]

Hi, thanks for your help.

The TestProject is based on the guide, isn’t it?
I will try to understand that …
Is the port 3015 for EV3 or PC?

I tested simple C programs today. The EV3 can get a UDP message from Ubuntu but Ubuntu can’t receive a message from the EV3 yet.
How can I check if my PC is blocking UDP messages?

thanks,
FC

[Anders Søborg]

Hi

The EV3 can get a UDP message from Ubuntu but Ubuntu can’t receive a message from the EV3 yet.

How did you test that?

How can I check if my PC is blocking UDP messages?

The best way is to test whether or not data is being send back and forth between the PC and the EV3. Use wireshark for this. You should see something like the dump that can be downloaded from the guide…

Anders

[Felipe]

Hi, thanks for the info.

As for the test, firstly I tested this using UDP where the EV3 is a server and the Ubuntu is a client.
http://en.wikipedia.org/wiki/Berkeley_sockets
It worked. While I am testing this I did not see the EV3 on Interface List on Wireshark though..
Then I set EV3 to a client and Ubuntu to a server but it doesn’t work..

FC

• This reply was modified 10 years, 8 months ago by Felipe. Reason: change
• This reply was modified 10 years, 8 months ago by Felipe. Reason: change

[Anders Søborg]

Hi

As for the test, firstly I tested this using UDP where the EV3 is a server and the Ubuntu is a client….

You kind of lost me here… what is it you are trying to do? Are you not using MonoBrick communication library on Linux/Ubuntu to connect to a EV3 brick running the standard firmware?

When you connect the EV3 to your WiFi network it will broadcast UDP messages to show that it is alive… are you receiving these? If not your PC might be blocking UDP traffic or the router might be set to block UDP and/or block broadcast messages.

Anders

[Felipe]

Hi,
I was just testing simple programs temporarily to find out my problems..
I have changed the network type from NAT to Bridged on VMWare where I use Ubuntu.
Then the TestProject using MonoBrick communication library works now on Linux.
Thanks,
FC

[Anders Søborg]

Great

Anders

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