Main > Main Forum

Dave's Electronics

Pages: << < (2/2)

Kremmit:


--- Quote from: SavannahLion link=topic=69203.msg707053#msg707053
[quote author=u_rebelscum link=topic=69203.msg706589#msg706589 date=1185231508 ---and GGG doesn't have an analog interface.

--- End quote ---

I thought their Opti-Wiz was the equivalent to the AKI and A-Pac.  ???
[/quote]

Nope.  Opti-Wiz competes with Opti-Pac and Mini-Pac.  GGG doesn't have a competitor for the AKI or A-Pac.

SavannahLion:

Thanks for the information. Would've saved me some head scratching.

u_rebelscum:


--- Quote from: SavannahLion on July 24, 2007, 06:22:07 pm ---
--- Quote from: u_rebelscum on July 23, 2007, 06:58:28 pm ---Personally, I like his product better than the original A-Pac that was out at the time, since no extra capacitors are needed, even though it has less buttons and no 8-way feature.  The newer analog-only apac v.2 looks like it doesn't need capacitors, either, but it doesn't have buttons,

--- End quote ---

I saw it mentioned elsewhere as well. What are the caps for in the circuit?

--- End quote ---

The old way PCs read analog sticks hooked to the gameport was based on how long it took a cap to discharge, one per axis.  Each cap was charged through a POT; the lower the POT resistance, the more charged the cap, and the longer it told to discharge.  Usually a 5k POT needs a different cap than a 100k POT; and the APac is like this.  Not sure how AKI or APac v.2 do it, as they look solid state.

And FWIW, there are a lot of other analog interface products out there at the same level as AKI & APac, mostly for the flight sim & race sim crowds.  Many can do 5k and 100k POTs.  A few to look at BetaInnovations, FlightLink, and Precision to name a few.


And a little more back to the original subject, found a pretty good read on encoders vs POTs.

Pages: << < (2/2)

Go to full version