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Screek presence sensor
(sub.wetshaving.social)
Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io
I'm using a mm wave sensor for a similar purpose and it works well. I don't use it as an on trigger. I use it to help decide when to turn lights off.
That's exactly how I'd use it. It'd have a time delay, too.
Also, completely unrelated, but it's odd seeing a totally normal, non-tankie user from lemmy.ml.
TIL what a tankie is and that lemmy.ml is politically biased. I pretty much just keep to my subscribed communities.