So I reversed enginerad a Tuya-based automatic pet feeder(Miaosical, SC-A80W-DW) based cat feeder.
I thought it would have simple gpio pins for controlling the feeder and just replacing the WIFI chip. But that changed when I opened it and found it only had serial controlling the motor and other stuff.
Anyway here is the project. ESPHome yaml file and instructions. Working fine with mqtt and Homeassistant.
https://github.com/paaaer/the-pet-feeder/
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