Home assistant and Alexa | Home Assistant | Page 1

green folio Mar 22, 2026, 1:14 PM

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Hi. I'm new to home assistant, I used Alexa right now to turn on/off my recessed lights. Although the lights themselves are smart and not the switch.

Would it be possible with HA, to us we a motion sensor and to have it connected somehow to Alexa/ recessed lights to have them turn on?

Thank you

woven seal Mar 22, 2026, 1:20 PM

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I don't use Alexa, but I absolutely have HA responding to a presence sensor to turn on kitchen lights when we walk in (only room we always want lights on bright every time we enter, and often are carrying food and can't hit the switch)

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I assume you could have HA respond to sensor and send a message to Alexa, but I don't see any reason to involve other people's computers to do this 🙂

green folio Mar 22, 2026, 1:28 PM

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Interesting, I assume Alexa has to be connected first to HA in order to do this?

sweet hare Mar 22, 2026, 1:34 PM

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I would remove the lights from alexa, add them to home assistant and then expose them to alexa (unless you're using matter, then you can leave them connected to alexa). Exposing to alexa works via home assistant cloud, emulated_hue or home assistant matter hub

green folio Mar 22, 2026, 4:42 PM

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sweet hare I would remove the lights from alexa, add them to home assistant and then expose...

Would HA be able to detect those lights? I use an app called BRmesh when they don't work with Alexa usually.
That's the description I have from the lights