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View topic - New PCBs available! The Uni-Gen Converter and Multi-DIY board

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  • Joined: 05 Jan 2006
  • Posts: 202
  • Location: USA
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New PCBs available! The Uni-Gen Converter and Multi-DIY board
Post Posted: Fri Sep 15, 2017 7:02 pm
Hey folks,
I have a few updates about some cool projects to share. I designed a couple boards useful for doing Sega 8-bit mods and hacks. The first, is the Uni-Gen Converter:


This handy board demuxes a Genesis controller so you can use Start on an SMS or Game Gear (with modding). It also has auto-fire and other features.

The other board I designed is called the Multi-Use DIY board. It has debouncing, flip flop, and MUXs for doing easy switchless mods. These are great for adding import selection or overclock with the push of a button:



Please see my new website for details and ordering:
https://segasonicfan.wixsite.com/retro/store

-Segasonicfan
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  • Joined: 23 Aug 2009
  • Posts: 54
  • Location: Seattle, WA
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Post Posted: Wed Sep 20, 2017 10:41 pm
Would it be possible to map the Start button to the Pause NMI on the SMS?
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  • Joined: 05 Jan 2006
  • Posts: 202
  • Location: USA
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Post Posted: Wed Sep 20, 2017 10:54 pm
SavagePencil wrote
Would it be possible to map the Start button to the Pause NMI on the SMS?


Yep, that's one thing the board was designed for :)

Keep in mind that the SMS controller port does not have enough pins for another button, but you can make a toggle between pin 7 (TH, for lightgun games) and start if you want to use it to pause all games but lightgun games, for example.

My multi-use PCB can do this if you want to toggle with only a simple button press, mounted on/in the console (like the reset button, for example)

-Segasonicfan
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