I gave Codex eyes. It gave my cat printer Wi-Fi.

Overview

I wanted to turn this tiny Bluetooth cat printer into a Wi-Fi printer using an ESP32-S3, so I could print images from a browser. I connected the hardware, pointed my MacBook camera at the printer and ESP32, and gave Codex (GPT-5.6) access to the setup, including the terminal and camera. Once everything was ready, I gave it the goal, asked it to test and keep a checklist, then went AFK. It could send a print job, take a camera snapshot, and check what actually came out on paper. That let it use t

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