I don't know this for sure, but if you installed the mobile companion app thru the Store for your platform, then the integration is probably using its push API to reach your device remotely.
I'm >90% sure notification workflows find me even when I am remote and untethered from home when I notify the app on my mobile devices.
There are GSM modems that can be used by the server to send an SMS. I nearly bought one when it was cheap, but noticed just in time that the GSM level of that device was 3, which is no longer available here. And it needs a valid Sim card to work.
Just to add... if you don't want this, the minimal version of the HA app doesn't use 3rd party systems for notifications (you'd need to setup something yourself), so if this is a problem for you, there's also that option..
It's almost the same to Europe (13€), but this stayed the same for the new batch. Not sure why US shipping got more expensive, previously it was cheaper than shipping to Europe...
Good to see proliferation of presence detectors. Good for turning things off when nobody is around.
In my last job I got to play a bit with the SeeedStudio mmWave presence box. What was interesting (and a little confusing) was that it took multiple add-on boards for things like on-device fall detection (for elderly). For the time I had with it, it worked fine with HA: https://wiki.seeedstudio.com/mmwave_radar_Intro/
Yeah that seems to be why the EPL supports a bunch of sensors, it's a tradeoff between different features for each sensor. Some do X/Y position tracking (default one). Some do fall detection. Some can measure heart rate. But seems like no sensor can do it all, at least not in that price range.
I have my dock plugged into a smart plug and the laptop set in the BIOS to turn on when it receives power. I have an NFC tag on my coffee machine that I bloop while I'm making my morning brew, and that turns the dock on so that everything's ready when I move into the office.
For turning things off I have HASS.Agent installed and sending state updates (locked, unlocked, etc, which is useful for other automations) and when that sensor goes unavailable for 15 minutes it turns the plug off. I find that's long enough to allow it to reboot for updates and what not.
The sensor does report shutdown, reboot, and sleep states but I found that it often happens too quickly to get the change sent, so the unavailable state is more reliable.
Yeah, unfortunately, I do not have access to the BIOS, nor can I install things on it - security restrictions. What you have done would have been a lot easier and more reliable though!
Hey, I have a Shelly window/door sensor on my bifold door. It includes a lux and temperature sensor, which i’m using to close the blinds (luxaflex/hunter douglas) if the temperature exceeds a certain level along with a high light level.
In practice where I live it is easier to close the blinds based on the current outside temperature, but the window/door sensor makes a good second check. it also prevents the blinds from operating if the door is open!
I’ve had this one (it’s the Wifi version not Bluetooth) for about four months and it claims that the battery is at 81%. I’ve not owned it long enough to say if that is a linear or exponential (or totally made up) value.
So there is a calculation for what time the sun is at a particular angle in the sky which will be relative to your area and factors in the time of year etc. You could use that as it will give you a very specific to your area mathematical answer to when you should close your shades. This is a good start. If you mix that with a light sensor and set minimums that will get you the rest of the way there (no sense run blocking lightning a cloudy day.) You can just use a light sensor but it will be more erratic if you don't correct for weather and seasonal light levels.
The rest is personal to how sensitive to light changes and seasonal settings you apply to it.
As far as the physical control goes - there are several commercial devices available as well as diy solutions involving motors and 3d printing on YouTube.
The sun component (which should be enabled by default) already computes the sun position for you.
Elevation and azimuth are available as standalone sensors sensor.sun_solar_azimuth (might be disabled by default) or as attributes on the sun.sun entity.
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