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Possible 3 game Nintendo "MVS" bartop *2 questions*

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BurgerKingDiamond:

I've been thinking about what kind of project I want to do next. The idea that I like the most is a Ninja Gaiden themed NES bartop. But here's the cool part, I want to do it like a NEO GEO MVS with three cartridge slots and real NES (or a knockoff YOBO or something. the point is that it will be real hardware, not computer emulation), so I can have all three of the NES Ninja Gaiden games in at the same time (although you could put in any 3 games).

You can buy brand new 72-pin connectors online for about $10. So the basic Idea is to get 3 72-pin connectors and wire them to some kind of central switching unit that will have one output to the MOBO.

The hard part is how to do the switch... Is there anything available that would have enough pins to accomodate this, and also be able to switch 3 ways?

I think this could be a really COOOOOOL project, but I need some help working out this switch thing. With all the resourceful people on this board, I have faith that someone can help me come up with something. So I'm all ears.  

 :burgerking:



BurgerKingDiamond:

I just thought of something, but I don't know if it would work.
Could you run 3 wires from each pin on the MOBO and have one wire
from each pin connected to the corresponding pin on each 72-pin connector.
So all 3 connectors will be hooked up at the SAME time.

Except you don't connect the GND pins. each GND (1 from each 72-pin connector)
will be connected to a 3-way slide switch and on the other side of the switch
to the MOBO. So only the 72-pin connector that has it's GND connected through
the switch at any one time will be active. Also, with this configuration, you
don't have to worry about possibly having more than one cartridge ON at the
same time.

All my knowledge of electronics is based off my small amount of DIY projects,
so please let me know if this is plausible or not.

Thanks.

BobA:

If you do not want to emulate you could consider a NES multicart.  Alot easier than wiring all those connectors together.

BurgerKingDiamond:

Thanks, but I want to do something unique and I want to have all three carts accessible from the front so that you can load it up with whatever 3 games you choose.

I acknowledge that this is going through a lot of extra effort, but I'm not interested in just being able to play multiple games. I can already do that. I'm doing it for the concept itself.

My main question how to actually switch between games and if my above method would work.

newmanfamilyvlogs:

Not fully on topic, but some interesting projects/information here that might give you some inspiration:
http://www.raphnet.net/electronique/nes_vs/nes_vs_en.php?section_id=0
http://benheck.com/Games/Nintendo_projects/Super_NES/Soup_Up_NES.htm


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