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Ultimarc: New dual analog/digital interface, A-PAC.
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Kremmit:

--- Quote from: Lilwolf on March 21, 2005, 07:52:39 am ---No...  they do what they do and do it great.

By spinners I was thinking Omega race specific (there are a few others also).  These look like spinners but use pots.

there are two type of pots that can be used for these. 

One that only turns part way... but these would be bad since you couldn't continue to turn left after a bit. 

One that turns all the way around, but at the end, it jumps back to 0 (whats sent to the computer).  This would also be bad since you would have to make sure the drivers in mame are expecting this.  Many mame drivers do not handle the real controls from the real machines because the mame developers want to get them working with normal hardware (ie, mouse)...

But 270s will work great... Starwars controlers great.... Omega race controllers great (if they work with Omega race is another issue).



--- End quote ---

Ah, I wondered why you were bashing them, but I was only thinking of travel-limited pots, like a Pong Paddle.  The A-Pac won't know those from a 270 wheel, and should not have any issues.  I forgot about free-rotating ones, like on Omega Race- those would be the ones with the issues you mentioned.  I suppose these would need some special code to be used, either in MAME, or a Windows driver, or hardware support built in on the A-Pac.     
SirPoonga:
I've been wanting to make a throttle control for my LEGAL Lunar Lander (thanks Star Roms!).  Though JUST for that a joystick hack would be much cheaper.  This does bring up a question.  I haven't played lunar lander with a joystick in sometime, just a spinner to control the throttle.  If I remember for lunar lander it only looks at the joystick UP.  So how would one wire a single pot to act as only a windows joystick up?  Aren't there racing games where the gas is up and the brake is down but the actual hardware the pedal are seperate?

Good possible uses for this:
Simulate 49way games, Pigskin, Arch Rivals, and Sinistar support analog input to simulate a 49way.  Blitz doesn't but then get the PC version and use this product with that :)
Warlords!  Which reminds, will have to look up 2+ player simutaneuos paddle games now to see how useful this actually is!
Magnet_Eye:
So, uh, we can connect a Star Wars yoke to this I assume?

AndyWarne:
MAME usually takes a logical approach to analog controls. For example a pedal control starts with the pot near one end and MAME would see this as a "pedal up" with the other end of the travel being "pedal down".
Most analog controls don't use the full pot range. So the full logical travel can be obtained by running through the Windows calibration routine, just once for each control. This will ensure full logical travel. In fact you can tweak the travel if you wish, so as to get a full logical travel over only part of the physical travel.
It's perfectly OK to connect only one up/down pot, and have the left/right as switches.
Another neat feature is the MAME joystick dead-zone setting which means you can tune an analog stick when you use it as a digital, by selecting the joystick physical throw before the direction is seen as activated.
Andy
Kremmit:
Andy- Can you say when the 8-axis board will be ready?  Put me down for the first one!
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