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Your place, your car and your pets · 265 ideas
HomePartly worked

The AI designed his fan controller circuit, board, and software. The boards are ordered and still untested.

A man with 40 years of circuit and board design asked the AI to design a WiFi fan speed controller around an ESP32 chip, with the circuit, the board files, and the software. The first design took about 15 or 20 minutes. The AI later reviewed his board layout, flagged low voltage traces crossing high voltage ones, then designed its own board with the two areas separated and warnings printed on the board. He bought the parts himself. The boards are on their way and have not been powered up yet.

This only partly worked. Worth knowing before you try it.

Negotiate my car purchase down $4,200 by email

Engineer AJ Stuyvenberg let his AI handle his 2026 Hyundai Palisade purchase by email, and it played dealers against each other over several days. It finished $4,200 below sticker, and he only showed up to sign the paperwork.

$4,200

The AI brought my old album art display back to life

His old Tuneshine display for album art sat unused because it kept losing its connection and depended on a cloud service. The AI identified the display, ran pin tests, and wrote new firmware, and now a small program on his NAS shows album art or a world clock on it.

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Every idea is a real post from someone who tried it, summarized in our words, with a link to the original. App names are swapped for plain words.