Build Your Own Arcade Controls Forum
Main => Main Forum => Topic started by: djlins on March 25, 2013, 07:55:29 pm
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Hi there,
I have a 10K potentiometer connected to the UHID but when I run it through the Gamepad calibration on windows 7 there is a major lag on the x axis sliding left and right. Sometimes it can take a couple of seconds for the cross hair to move over once I have slid the slider.
I want to connect the slide pot up to a steering lever for MAME so I need a quicker response time. Does anyone know if I search for a 1K pot it may give a better response time?
Cheers,
L
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That's odd.
Does it do the same when you connect it to a multimeter?
- Power off or disconnected from the UHID.
- Ohms mode.
- Leads on pins 1 + 2 or 2 + 3.
An analog meter is better than a digital one for this type of test, if you can get one.
(http://vo.advancom.com.my/storage/homepage/advancom.com.my/Icon/Tenmars/YF-303.jpg)
The analog meter will show variations that would be lost in the sampling loop of digital meters.
As far as substituting a lower value slide pot, that won't help.
Another thing to consider is that slider pots like this aren't designed to handle constant fast adjustments.
(http://ts3.mm.bing.net/th?id=H.4889808300540034&pid=15.1)
For a steering lever, you might try making a centering variant of the Luner Lander controller (bottom views shown) with a high reliability potentiometer like the ones used in the Star Wars yoke controller.
(https://lh4.googleusercontent.com/-QYrf8-ZreCs/UUoNTqsPCVI/AAAAAAAAEdA/q2nO_ZSvBNY/s873/IMG_0468.JPG) (https://lh5.googleusercontent.com/-y0e9qnWabrA/UUoNSW0NxzI/AAAAAAAAEc4/s67AY1fGIZI/s873/IMG_0467.JPG)
The shaft of the potentiometer is on the same axis of rotation as the steering handle's pivot point.
Scott