AI scientist builds an open-source Codex Micro from scratch for $40

Show HN: AI scientist builds an open-source Codex Micro from scratch for $40

AI scientist builds an open-source Codex Micro from scratch for $40 operates in show hn launch.

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A few weeks ago, we open-sourced our design for a cost-effective but full featured alternative to OpenAI x Work Louder's sold out Codex Micro macropad. And now, we're pleased to share that we've actually built them and they work!Quick recap of the I/O: - 13 assignable keys with individual LEDs - rotary encoder - joystick - touch disc - optional edge-lit LED bandThe cool part for us was just HOW our agent was able to do it when every other agentic skills, tools, and even commercial platforms failed. We put together a more detailed writeup in the linked blog post (plus pretty pictures!), but long story short, we asked our agentic scientist, Marvin, to treat the electrical engineering as a rese

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Website: iluvatarlabs.com/blog/2026/08/how-we-cloned-openai-codex-micro