[Marcin Krzewski]

Hi Anders

I still can’t connect.
"youDeviceName"
Should it be my phone name or my ev3 brick name? And does it matter if I turn on bluetooth and pair devices before I run the app on my phone? Or should I do it in the app using the code you provided? Btw. I dont exactly know what you mean by "This can be done by using the static property on the Bluetooth class"

Sorry if my questions are dumb, I’m still learning.

Marcin

[Marcin Krzewski]

Hi Greg

in your first post you said you can connect to EV3 using MonoBrickAndroid so I assume you created an app for that. I’m trying to do that to, my app is supposed to control a car via bluetooth, but I’m having truble establishing connection. Could you share your code? If not whole maybe just the connection part?

Marcin

[Marcin Krzewski]

Hi Anders

I did as you said and I’m getting an error in the line var device = MonoBrick.Bluetooth<MonoBrick.EV3.Command, MonoBrick.EV3.Reply>.GetBondDevice("youDeviceName");
saying 'MonoBrick.Bluetooth<MonoBrick.EV3.Command,MonoBrick.EV3.Reply>' does not contain a definition for 'GetBondDevice' D:\Projekty\EV3\Kama2\Kama2\Activity1.cs
I copied the bluetooth class from the test project. Do you know the solution to that? How should the definition of the GetBondDevice method look like?

Marcin

[Marcin Krzewski]

Thanks for the reply Anders. I was using the test project and I was able to solve the problem on my own. The error was
(System.BadImageFormatException)A System.BadImageFormatException was thrown. An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)
and I fixed it by changing in the Visual Studio project properities\build target platform option to 32 bit. Hope this can help if someone has the same problem.

[Marcin Krzewski]

Hi,
my EV3 is connected via usb, when I run TestApplication I just get “Failed to open connection” error. I’m using Visual Studio 2012 and Windows 8.1. I know it’s probably the hidapi related error, I already tried copying hidapi.dll and hidapi.dylib files from my \LEGO MINDSTORMS EV3 Home Edition\HidApi folder to \TestApplication folder but it doesn’t fix the problem. I also tried compiling my own hidapi library according to instruction on http://www.signal11.us/oss/hidapi/ but it doesn’t give the .dylib file and compiled hidapi.dll alone also doesn’t fix the problem. What am I doing wrong? Could you give me step-by-step instruction how to do it? Or should I switch to different software (Win7/VS2008)?

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