this post was submitted on 07 Oct 2025
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Has anyone built out a self-hosted home alarm system? Something like ADT, but entirely self-hosted?

I'm wondering if this is possible with some combination of Frigate, Home Assistant, and something called Alarmo?

Or can a simple alarm system be created with just Frigate? I was thinking something simple like putting a camera inside my house when I leave. Then if any motion is detected inside of the house, activate a siren to scare potential burglars.

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[–] marud@piefed.marud.fr 2 points 10 months ago

I have Frigate with a TPU, that is connected to Home Assistant.
As soon as we leave the house (and HA detects us outside of "home") it enables recording and motion detection on Frigate.
A blueprint for frigate allows to send notification on motion detection.

It's a simple but frustrating setup to put in place (thanks to Coral USB TPU lacking proper docs / updates) but now it works nicely.

You don't need Frigate+ but you could do a 1-shot buy to get enhanced detection models (my cats are often detected as persons and triggers false warning, FG+ should help)