Re: How to turn "gaming wheel" automatically in autonomous driving mode!

First you need a driving wheel supporting force feedback. I'm assuming 
you have one.

If you happen to use Ubuntu, then there is a nice package joystick, that 
you can use to test your wheel. After installing it use jstest 
/dev/input/js0 to test the basic joystick functionality and fftest 
/dev/input/eventX to test the force feedback. With fftest you have to 
try all the event devices, in my case /dev/input/event4 was the right 
one, but it might not be the case with you. Also ffcfstress -d 
/dev/input/eventX is an example program doing exactly what you need to 
do - moving wheel to a different directions with constant force.

Next if you want to control the force feedback yourself, the easiest 
option would be through SDL2, which has support for haptic devices:
http://wiki.libsdl.org/CategoryForceFeedback

You can install Python wrapper using pip install pysdl2. But you still 
have to refer to C++ documentation for details. As the API functions 
match exactly, it's not too complicated. An example how to use Python 
wrapper can be found here:
https://github.com/tambetm/botmobile/blob/master/test/testhaptic.py

I tried to do exactly the same thing as you and have a messy repo 
populated with half-working examples. Here is the Languarden's excellent 
Torcs Championship Server Client modified to turn the wheel:
https://github.com/tambetm/botmobile/blob/master/src/ffdriver.py

Hope this helps!

   Tambet

On 2.08.2016 13:21, Alan Ali wrote:
> Hi all,
>
> Sorry to send  this email (by error) to the development list, so i 
> re-send it to the users list.
>
> I am developing a lateral control laws for the cars to follow the 
> tracks. I would like to make my "gaming wheel" turn automatically 
> according to applied control law (as the autonomous vehicles do). I 
> have searched in the mailing list about the feedback force but i 
> couldn't find how to control the gaming wheel (the feedback isn't 
> implemented!), so would you please tell me how control the gaming 
> wheel (e.g, how to turn it 10 degrees)?
>
> Thank you
>
> -- 
> /Alan ALI/
>
>
> <mailto:[email protected]>
>
>
>
> ------------------------------------------------------------------------------
>
>
> _______________________________________________
> Torcs-users mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/torcs-users

------------------------------------------------------------------------------

_______________________________________________
Torcs-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/torcs-users