this post was submitted on 07 Jan 2025
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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

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Aqara Unveils New Presence Senr at CES 2025 - SmartHomeScene (smarthomescene.com)
submitted 1 day ago by tifriis@sh.itjust.works to c/homeassistant@lemmy.world
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[–] asbestos@lemmy.world 5 points 1 day ago* (last edited 1 day ago)

“As the mmWave sensor enters a low-power state when no motion is detected, it allows the Aqara FP300 to have a 2 year battery life while being powered by a pair of button cell CR2450 batteries.”

Reading through the marketing bullshit since this is the only number mentioned: It’ll last 2 years if there’s nobody ever in that room. In reality, it’ll last a few months at best and probably less than that if there’s people constantly in the room, as the mmWave sensor will need to be powered non-stop.