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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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Trigger automation 15 minutes before Alexa alarm. (kbin.social)

submitted 1 year ago by [email protected] to c/homeassistant

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I'm trying to improve my morning routines with Home Assistant. I have a set of Eve Motionblinds connected to Home Assistant, along with my Sonos with Alexa.

My goal is to set an alarm with Alexa, and have the Eve Motionblines raise 15-20m before the alarm goes off as a sort of sunrise alarm clock.

I've looked through the docs, but I can't figure out any way to make something like this happen. Anyone have any ideas?

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[–] knapoc 1 points 1 year ago* (last edited 1 year ago)

There are probably multiple ways to solve this...

Here's an approach I'd choose (note that I do not use Alexa, so my knowledge about the integration's capabilities is limited):

define an input datetime used as an alarm time.
allow Alex to manipulate this input datetime
use a template trigger to compare the current time with the defined alarm time - and yes you can do calculation; e.g., automations triggers when current time = (alarm time - 20 minutes)
trigger the alarm from within home assistant by either using a delay in the same automation or use a separate automation triggered at alarm time.