[simpits-tech] Using Pots for position sensing (part 2)

[Justin Messenger]

That looks like a slick little controller. You will get much better results wilth that than with opening a joystick.
 
For those of you who have used this controller, does it stay calibrated like an EPIC does?
 
Justin


To: 
"Simulator Cockpit Builder's List" <simpits-tech at simpits.org>


At 04:08 a.m. 5/12/2008, you wrote:
> >
> > The only issue now is one of resolution... hmm... I need some cunning
> > rather than time-consuming engineering.
> >
>
>Roy, the only way you're going to increase the resolution is to increase
>the sample size.  I suspect that the logitech stick uses a three wire pot,
>in which case it's configured as a voltage divider.  Most off the shelf
>joystick use a 10 bit sample rate which will give you a resolution of 0 to
>1024.  This is of course a huge improvement over the old style "analog"
>joysticks that PCs used to use - those were 8 bit samples. (0..255).
>
>If you want to go to a 12 bit sample size, you can get one of Leo Bodnar's
>BU0836A controllers.  They provide for 8 axes and 32 button inputs and the
>sample range is 0..4096.  This should be plenty for what you're trying to
>do.  The good thing is that he's local to you and the device is listed as
>(insert funny pound sign here)24.
>
>Here's a link to the '386A: http://www.leobodnar.com/products/BU0836A/


      
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