Expressif might not have intended the ESP32-S3 to become an emulation powerhouse, but that’s certainly what has happened. The little microcontroller seems perfect for recreating the Game Boys or Game Gears of years past, and there are a lot of software options to that end. Having grabbed firmware off a github repo, you still need a physical build to hold, and that’s where this one by [HVT Lab and Huy Vector] stands out.
As you can see, they’re letting everything hang out — not even in a 90s-inspired clear case, but with an open frame of soldered brass, with just a small strip of 2 mm clear acrylic to help stabilize the buttons. That appears to be held with cyanoacrylate glue, but it’s brass and solder doing the majority of the structural work here. We might be a little more confident tossing this lovely device in a bag or pocket if the whole device was boxed in with that acrylic — shorting the exposed power bus on your keys sounds like a bummer — but we can’t argue with the aesthetic vision here. It’s a lovely build on the physical end.
From the video it looks like the software is based on Retro-Go, which we’ve seen in use before. In any case, there are plenty of open source projects you could load onto the ESP32-S3 powering this circuit sculpture, though, from NES to IBM PC.
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