this post was submitted on 12 Feb 2026
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what information are you looking to get in to HA from the cat flap?
Lock and unlock control and status mainly.
Because you want to keep your cat from going in/out at certain times or what?
We just have one of those chip-enabled flaps so it only unlocks for our cats. 100% offline with no cloud connection whatsoever. I personally don't really see any benefit to remote locking/unlocking the flap, if I wanted to manage when my cat can enter/leave the home I wouldn't have a flap.
We don’t let our cats out at night so it would be great to have a cat flap that knew whether each cat was in the house or not and could either lock the flap or lock it on in-only at a certain time of day.
You can at least get the who's in/out with a pair of cheap cameras (one inside, one out) and the frigate add-on. Set up for cat detection it's fairly decent:
If you build up enough images of your creatures, you could even train a model to recognise them each specifically.
That looks good. The current cats look very different from one another so I reckon that we’d only need three pictures to train it.