Best PC trackball interface

[bimm25e]

Looking to make a mame trackball arcade and want to know what's my best way to get VGA and a pair of millipede trackballs to the cabinets Jamma interface.

[bimm25e]

Looking to make a mame trackball arcade and want to know what's my best way to get VGA and a pair of millipede trackballs to the cabinets Jamma interface.

Wondering if I want to try to use a PS2 port to minimize input lag on the trackballs, wondering if I can support 2 trackballs at once through a PS2 interface though

Whoops, didn't mean to write myself twice

[lilshawn]

Wondering if I want to try to use a PS2 port to minimize input lag on the trackballs, wondering if I can support 2 trackballs at once through a PS2 interface though

honestly if you can press a stopwatch button to start a timer from 00:00:00.00 and press it again to stop it at 00:00:00.10... you'll still have a hard time noticing the difference between a ps2 mouse and a usb mouse poll rate. the difference between the best ps2 mouse and the worst usb mouse might be 15 to 18ms.

usb will support multiple mice...ps2 will not. (at least not in any way i can think of ATM)

[PL1]

what's my best way to get VGA and a pair of millipede trackballs to the cabinets Jamma interface.

The only optical (mouse) encoder that I've seen that can handle two trackballs with just one encoder board is the Opti-PAC.
- It should also be possible with an Arduino, but I'm not sure how to make that work.   

For VGA to JAMMA, check out the J-PAC.


Scott

[bimm25e]

Wondering if I want to try to use a PS2 port to minimize input lag on the trackballs, wondering if I can support 2 trackballs at once through a PS2 interface though

honestly if you can press a stopwatch button to start a timer from 00:00:00.00 and press it again to stop it at 00:00:00.10... you'll still have a hard time noticing the difference between a ps2 mouse and a usb mouse poll rate. the difference between the best ps2 mouse and the worst usb mouse might be 15 to 18ms.

usb will support multiple mice...ps2 will not. (at least not in any way i can think of ATM)

I've always been able to notice miniscule lags, and I consider input lag as part of an additive group of lag; input lag+processing lag+display lag all kinda combine.  If I can get all as low as possible I find the experience to be the most enjoyable.