I recently learned about Home Assistant here on Lemmy. It looks like a replacement for Google Home, etc. However, it requires an entire hardware installation. Proprietary products just use a simple app to manage and control devices, so can someone explain why a pretty robust dedicated device is necessary as a replacement? The base model has a quad core processor, 4 gigs of ram, and a 32 gig hard drive. Admittedly it’s no gaming PC, but it’s no arduino either.
What actually happens when I turn on a smart switch in my home? Does that command have to be sent to a server somewhere to be processed? What really has to be processed, and why can’t a smartphone app do it?
Edit: I am still getting new replies to this (which are appreciated!), but I wanted to share what I’ve learned from those who have posted already. I fundamentally misunderstood how smart switches work. I had very wrongly assumed that when my phone is connected to the WiFi, it sends a signal over the local network to toggle the switch, which is connected to the same network, and it turns on/off. While there are technologies that work like this (zigbee, kinda?), most smart home devices rely on a cloud server to communicate the signal. This enables features like using the switches from outside the home network, automation, voice controls, etc. The remote server is what’s being replaced.
HA doesn’t require 4/4/32, that’s just the hardware the HA people sell. (which, given that your phone may be 8/16/128, is hardly “robust”). Generally, the Home Assistant crowd kind of target an audience that’s probably already running some kind of home server, NAS, or router, and HA can probably be installed on that device.
Theoretically, there’s no reason the HA server couldn’t be installed on your phone, except then your smart home functions would only work while your phone is in the house and not sleeping. Kind of defeats the point of a lot of it, unless you’re just thinking of smart home like “remote control for everything.” Regardless, much smaller niche for an already-small market, and apparently not a priority for the dev team.
Also, the point of HA is usually to avoid 3rd party servers, so you don’t just need something that runs HA, you need something that can receive data signals that may not be over wifi. Unless you can connect 3rd party receiver dongles to your phone, it’ll end up limiting which devices you can use on your network.
Home Assistant is the brain of the operation. Your smart phone is just an arm or hand in the operation. It’s the same for any of the services you perceive to be just using your smart phone. They actually call out to servers owned by the various companies, and then return requested operations to your devices at home. So with Home Assistant you have the opportunity to use devices and a server that all remain in your own network. Your data and information aren’t being sent to a third party. This, of course, depends on the devices you buy.
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HA doesn’t require 4/4/32, that’s just the hardware the HA people sell. (which, given that your phone may be 8/16/128, is hardly “robust”). Generally, the Home Assistant crowd kind of target an audience that’s probably already running some kind of home server, NAS, or router, and HA can probably be installed on that device.
Theoretically, there’s no reason the HA server couldn’t be installed on your phone, except then your smart home functions would only work while your phone is in the house and not sleeping. Kind of defeats the point of a lot of it, unless you’re just thinking of smart home like “remote control for everything.” Regardless, much smaller niche for an already-small market, and apparently not a priority for the dev team.
Also, the point of HA is usually to avoid 3rd party servers, so you don’t just need something that runs HA, you need something that can receive data signals that may not be over wifi. Unless you can connect 3rd party receiver dongles to your phone, it’ll end up limiting which devices you can use on your network.
THIS.
Home Assistant is the brain of the operation. Your smart phone is just an arm or hand in the operation. It’s the same for any of the services you perceive to be just using your smart phone. They actually call out to servers owned by the various companies, and then return requested operations to your devices at home. So with Home Assistant you have the opportunity to use devices and a server that all remain in your own network. Your data and information aren’t being sent to a third party. This, of course, depends on the devices you buy.
But that’s the power behind Home Assistant.