Trying to interface Interact Gas Pedals with Arcade

[JackTucky]

I have an outrun cabinet that has the "origjnal" gas and brake pedals.    I'm putting a dreamcast in the cab for racing games.  I want to interface the pedals that came with the DC steering wheel.

The DC pedals insides look like this:



The arcade pedals insides look like this:



I've got the wires where they are supposed to be, gas works fine, brake even kind of works, but the brake light on 4x4 evo is always on.  When I DO hit the brake, it does stop and then go into reverse, which is what it does when I use the DC pedals.

I'm guessing that the Pots have different values or something?  maybe move the brake pot a little?  Anyone know what to do to make it work?

Thanks in advance.

Art

[JackTucky]

Hey, take the gears off of the pot, then move the pot so it doesn't brake, then put the gear back on.

Done.

Thanks!

 

[JackTucky]

I've got it setup so the pots start at zero, but i can't press the gas enough now.  Should I replace the pots from the DC controller into the arcade one, or what?  Thanks

[pcates]

I've got it setup so the pots start at zero, but i can't press the gas enough now.  Should I replace the pots from the DC controller into the arcade one, or what?  Thanks

I would try to switch them out. I think the arcade ones are 5K, and the DC may be 100, so there would be a big difference. If they dont fit they may have some at radio shack. Good luck...

P.S. Did you stuff that 21" monitor in yet??

[u_rebelscum]

I've got it setup so the pots start at zero, but i can't press the gas enough now.  Should I replace the pots from the DC controller into the arcade one, or what?  Thanks

Can't you just recalibrate in windows?

[Trimoor]

Can't you just recalibrate in windows?

If I remember properly, the Dreamcast doesn't use windows!

[u_rebelscum]

Can't you just recalibrate in windows?

If I remember properly, the Dreamcast doesn't use windows!

D'oh! I was somewhere else when I wrote that.


AKAIK (and it's not that much):

a) dreamcast calibrates the center on bootup
b) IIRC, each pedal should output a range of ~2.5 volts (2.3v should be enough); I think one does ~ 0.2-2.5, the other ~ 2.5-4.8.  I don't know the supplied current, but V = I * R.  "The rest is left as an exerise for the student."

A couple things to note: since it's calibrated at bootup, the center volts can be other than 2.5, but the ends still need to be ~0.2v and ~4.8v.  Also, I'm basing this off a couple different gamepads; the dreamcast pedals might be different (but I doubt it).