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Main => Main Forum => Topic started by: Distortion on July 12, 2003, 02:25:33 pm

Title: any gaming use for NC circuit?
Post by: Distortion on July 12, 2003, 02:25:33 pm

I've thought and I've thought, but I still haven't come up with a good use for the NC circuit feature on my microswitches for games.  Does anyone know of any?

Title: Re:any gaming use for NC circuit?
Post by: grafixmonkey on July 12, 2003, 02:52:59 pm

You can design the pushbuttons to pull ground two different ways.  You can put a resistor between 5v and the pin on the microcontroller of the IPAC and then close a switch to ground when the button is pushed  (how the IPAC is built).

Or you can put a resistor between ground and the pin of the IPAC, and have a normally closed (NC) switch between that and 5v, and have the switch open when you push the button.

Or you can do either of those, switching 5v and ground, for a circuit that has active-high inputs.


I also posted some circuits that use both the N-O and N-C pins of the microswitches, connecting those to ground and 5v respectively, with the common pin connected to the circuit.

Basically it's because there are uses for both types of switch operation, and the way switches are made there's really no good reason not to have it there.

Title: Re:any gaming use for NC circuit?
Post by: Paul Olson on July 12, 2003, 05:51:29 pm

I bought a Pole Position pedal on eBay.  It looks like it would use NC.  The switch is pressed when the pedal is just sitting there, when you push on the pedal, the switch is released.

I haven't had a chance to hook it up yet to test it.  Kinda lost motivation.  I won the auctions for the pedals and the shifter, but lost the wheel.   :(

Paul

Title: Re:any gaming use for NC circuit?
Post by: Rocky on July 13, 2003, 12:19:25 am

I use the NC tab on my pedal microswitch.  I custom hacked it and it just seemed to be easier to make the switch be closed when the pedal is released.


Rocky