Unless you really cheap out, your "smart" light switches will work just fine as a normal light switch, you can walk over and turn it on manually if you're feeling like a Luddite. Or you can tie it into occupancy sensors, alarm systems, etc.
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Originally Posted by MrRational
It's more like a lot of people are invested in the technology (emotionally, financially, etc)... and needing for it to eventually being worth it down at the residential consumer level.
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There are legitimate applications for "home automation" (which covers a lot more ground than just having app/voice control over a couple of light bulbs).
Quote:
Originally Posted by turf3
What do you want to do with these supercalifragilistic-expialidocious computerized-smartphone-linked-WiFi light switches that you can't do by simply walking over to the light switch and turning it on or off?
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Sure, when you're building a new house, you can design in multi-way switches so the control for lights is where it needs to be, but it's not so easy in an existing house. Old houses often have sub-optimal switch placement, sometimes even dangerously so -- at my old place, the only switch for the lights on the basement stairs was located at the bottom. Not great when going down with a big laundry basket.
I have exterior lighting all around the house, but the switches are in weird spots. By replacing these with "smart" switches, I can hit one button and instantly switch from "elegant accent lighting" to "full prison yard". I can have this happen automatically, for example when a vehicle is detected on the driveway after sunset, or anytime the fire/alarm is triggered.
While the cheapest solutions are "cloud tethered" and only work via the Internet, there are approaches which avoid this and don't share your information with Amazon & Google.