Toothbrush ATC: full US airspace conflict-solving runs on a toothbrush CPU
juanbenet · x · 2026-11-15
Casey Handmer built Toothbrush ATC, a simulation of a synthetic day of US IFR traffic (45,000 flights, 5,000 airborne at peak) where every 5 seconds a full-airspace conflict detection-and-resolution solve runs on an emulated ESP32-C3 — the chip inside a Wi-Fi toothbrush that famously runs Doom. The page details worst-case solve times, RAM usage, a Cortex-M0+ port comparison, and live clearances. Juan Benet and others shared it as a delightfully absurd "worst hardware, hardest system" demo.
More from Fun
- Player builds 100+ mod super pack for Crimson Desert's neglected Mac version — R4nsack · 2026-11-15
- LLM given a robot arm self-learns to paint: 188M tokens, $97, one watercolor — VoicAndrei · 2026-11-15
- Claude predicted how 3.5 drinks would hit his sleep — and nailed every metric — Aizkmusic · 2026-11-15
- IEEE 754 meets Godzilla: engineers riff on 'Minus Zero' with float-point sequels — emax · 2026-11-15
- Day 3 without Jensen: viral meme shows a flooded Waymo stranded in the rain — venturetwins · 2026-11-15
- Dev builds custom ComfyUI backend to turn AI generation fails into a Seinfeld-style sitcom — umutgklp · 2026-11-15