Potato Mini Neo Geo Joystick

prusaprinters

<p>Introducing the <strong>Potato Mini!</strong></p><p>It's a NeoGeo/supergun compatible joystick. It is a small form factor to preserve space on my desk.&nbsp;</p><p>It is designed to be compatible with Sanwa 24mm/30mm OBSF buttons and the Sanwa JLF-TP-8YT joystick.</p><p>The buttons on the lid are 30mm and the start/select buttons on the back are 24mm. You can use any hardware you like, but I chose to use the Sanwa stuff and internally am using a screw terminal PCB that is designed for Neo Geo joystick inputs.</p><p>I'm having trouble posting OshPark links in here without getting a spam warning so I will say just search for “NEOGEO Joystick Board” on OshPark and look at the designs by “<a href="https://oshpark.com/profiles/Zarradeth"><i>Zarradeth</i></a><i>”.</i>&nbsp;</p><p>The <a href="https://www.retrorgb.com/direct-controller-input-mod.html">Direct Controller Input Mod</a> article on RetroRGB was also a good source of information.&nbsp;</p><p>When printing I had to use a 0.2mm layer height to keep the thinner parts at the very top of the lower model from de-laminating.&nbsp;</p><p>Also the lower was designed to use M3 heat set inserts to secure the lid in place.</p><p>The model is designed parametrically, so if people want I can easily expand the size of the model to accommodate more buttons or larger layouts. I can also make different lids if people want to accommodate different sticks/buttons.</p><p>AUTOFIRE</p><p>I found a simple Arduino based autofire sketch and made some minor edits to support a on/off switch. I installed the switch by drilling a hole in the side and placing a toggle in it.&nbsp;</p><p>It is super dumb and support up to four buttons. In my case I only wired it to the A button as that is probably 99% of the scenarios for me, but you could wire them all if desired.</p><p>Sketch here:</p><p><a href="https://github.com/hernan43/openpewpew">https://github.com/hernan43/openpewpew</a></p><p>I used an Arduino Pro Micro(Leonardo) however I can't imagine it wouldn't work on just about any Arduino compatible with enough pins. Just adjust the pins set in the sketch if yours are different,&nbsp;</p>