A Full ESP32 Computer Hidden in an Altoids Tin
The humble Altoids tin has become an unlikely icon of DIY hardware, and the latest build pushes the format to new extremes. Maker SuperRadMaker has turned the metal box into a fully fledged ESP32 computer, complete with a small display mounted in the lid and a compact keyboard tucked into the base. The entire system is self-contained: open the tin and you are greeted with a tiny but functional “laptop” that can boot different apps like a traditional computer. While the cramped layout means you will not be drafting novels on it, the fact that you can actually type on a handmade keyboard at all is remarkable. This project turns what is normally a mint container into a genuinely usable DIY pocket computer, highlighting how far microcontrollers and maker tools have come.
Yes, It Runs DOOM—Plus Emulation, Radio, and Voice AI Chat
Despite its toy-like appearance, this Altoids tin ESP32 computer is more than a novelty. SuperRadMaker has packed in an impressive software lineup: a PrBoom port to play DOOM, NES emulation via a nofrendo fork, and Game Boy and Game Boy Color games using gnuboy. Beyond retro gaming, the device can stream internet radio over Wi‑Fi, pulling in SomaFM and other Icecast HTTP streams like a miniature connected media player. Perhaps most striking is a mode called “ask,” which hooks into xAI’s Grok API to provide voice AI chat, with answers read aloud through the built-in speaker. That range—from classic shooters to emulators, streaming audio, and AI conversation—demonstrates how a single ESP32 can power a surprisingly versatile compact keyboard device that comfortably fits in a pocket-sized metal case.
Why Makers Love Altoids Tin Projects
There is a long-running fascination in the maker community with squeezing electronics into Altoids tins. The dimensions are just right for small boards, batteries, and displays, turning the box into a convenient, rugged enclosure that also carries a retro, tongue‑in‑cheek aesthetic. Earlier builds using boards like the Raspberry Pi focused on simple consoles or basic gadgets; now, this ESP32 computer shows how far the concept has matured. The tin format forces hard design choices: every millimeter counts for wiring, switches, and keys, so creators refine their layouts and fabrication skills. That constraint makes Altoids tin projects an ideal showcase of hardware hacking discipline and creativity. They blur the line between practical tools and art pieces, proving that a DIY pocket computer can be both technically sophisticated and visually charming enough to spark curiosity anywhere it is opened.
Ultra-Compact DIY Computing Beyond Commercial Handhelds
Commercial handhelds and mini PCs chase portability, but maker builds like this ESP32 Altoids tin computer follow a different philosophy. Instead of polished mass-market hardware, they prioritize openness, hackability, and a playful form factor. You can reflash firmware, experiment with new emulators, or repurpose the Wi‑Fi stack for custom network tools, all without being locked into a proprietary platform. This kind of compact keyboard device hints at future portable workflows where a home‑built gadget handles quick notes, simple programming, or on-the-go experimentation. It will not replace a laptop or phone, yet it offers a uniquely personal relationship with your hardware: you know every component because you (or another maker) assembled it. In that sense, ultra‑compact DIY computers are less about competing with consumer devices and more about reclaiming computing as a hands-on craft.