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I think the author is not an embedded guy and assumed that ESP32 is the generic name given to these sort of devices.

Either way, I am sure this was a fun project and he achieved what he wanted to do. But if this happened to me I would probably try to reverse engineer the device to free it from PetNet cloud. It would be fun and cool and interesting and I would probably never finish it..

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There are a few projects out there that were based around reverse-engineering, and running a local server with DNS hijacking to make the feeder use them as its CC server[1]. But I mostly just wanted something that could sit happily in HomeAssistant along with all the other automations, so ESPhome based device it is

And yeah, I'm not an embedded guy, but I've updated the article with an addendum

[1]: https://github.com/feedernet/petnet-feeder-service/wiki/Gett...

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