For the moment I’m out of hardware topics, so let’s look at some stuff that might be more widely applicable to folks who don’t make my exact hardware choices.
It will have become clear to most readers that I swung for the fences on this project. The two ServoStiks I purchased prove the point: they can switch between 4‐way control and 8‐way control. Did I need this? No. Was I going to take advantage of it once I bought them? Of course.
How to wire up a hardware knob that controls the Pi’s software volume level via GPIO.
All the stuff I wish I’d known about RetroPie and MAME that wasn’t written down in one specific place.
Last time I told you a story of how I built an arcade cabinet out of a couple sheets of MDF. The part I left out was the making of the control panel — the MDF board that will hold the buttons, joysticks, and other controls.