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Ask HN: Is “smart home” a good idea?
11 points by behnamoh on Jan 1, 2022 | hide | past | favorite | 13 comments
Given that nothing is completely secure and immune to attack vectors, isn't the whole idea of smart homes (e.g., turning off the lights using Siri) always going to be dangerous?



To a limited extent, depending what you expose and what you control. Basic AC and heating makes generic assumptions. If you know enough about your own property and how it heats and cools you can achieve significant, double digit % cost savings by timing heating and cooling to maximise environmentally driven states, and cheap/off-peak electricity. I had this from an engineer who designed these things before nest came along. It's probably high end only in specific cases but certainly should be able to make your home more comfortable for no more and possibly less power cost. Complex systems may never make an ROI so .. ymmv.

Same with fridges, washing machines.

I'm less convinced about smart doors, demands security review like online and fallback mechanisms for power outages but on principle giving delivery people access to a safe zone to drop parcels seems like a good idea.

Hey siri is drek. I have no personal interest in smart bulbs or music you may like by AI and every friend demonstrating siri or Alexa spend more time speaking the command clearly repeatedly phrased the exact way than getting up and doing it by hand. Plus we need the exercise. Sexy red nightie mood light bulbs.. meh.


I have several smart plugs from TP-Link that I e.g. use to turn on and off the lights in an aquarium. While they work fine in general they sometimes have weird glitches where they turn on the light during the night or don't turn it on during the day, so you come into the room at 4 am and the lights are on, or you wonder why the lights are off at 3 pm. Never found out why they do it and no solution so far. I also have several mechanical plug-in timer switches from Theben, some of which have been working flawlessly for almost 10 years, without any software.

So given my experience with these "smart" plugs and the fact that the particular models I've bought have already been obsoleted after only two years I would be very skeptical about placing more such smart tech into my home. Dumb electronics are less problematic, so if I can have a system that is mostly dumb but has some central interface for automation I'd be fine with that. I would never buy a fully integrated smart home system where each individual component is smart though.


One should be avoiding devices that contact some server in China before doing anything. Impossible find a lock for example that does not do that. So reprogramming is the only solution.

But after that the one and only problem is that there is not enuff intelligence in devices. If my cellphone is not detected in wifi, there is no point on keeping various devices on. So lights and displays and gas stove can be turned off via wifi. But I cannot control water faucets without extensive renovation. Also window status on unclear at the moment. There is no point of cooling/heating if windows are open.

The issue of front door opening automatically is under intense research at this moment. It is not enough that when the cellphone appears on wifi you should open the door. I think concurrent appearance on wifi and on movement sensor in front of the door could suffice securitywise.


It depends on what you consider a smart home. I'm going to jump into a complete renovation project in a month and the only smart home feature will be these Shelly smart switches: https://shelly.cloud/ to control lights.

I'll also install some movement sensors to turn on bathroom lights, but that's it.

I'm not going to hook this up to voice control, that's good for amusing guests, but I feel the interaction is just weird.


It’s much better if you build it yourself. Raspberry Pi, Arduino, etc. That way you are the one who understands the system best, and you know exactly how many risks are being taken and where.


only if you control the system (hw & sw) top to bottom


Yes and no:

Yes, turning off the lights using Siri (or Alexa, or any other deceptively cutesy-named Big Brother [Big Sister?] technology) is always going to be more or less dangerous; so no, the “smart home” (at least as currently implemented, via these always-connected Big Brother technologies) is probably not, on the whole, a good idea.


I’m generally “no” here but for accessibility all this tech is helpful. I currently have all my senses, and can imagine (from reading and discussions and observing) what it’ll be like to be less functional. That aid ideally won’t come with a privacy and/or security cost.


I don’t use voice agents, but you can make a pretty nice light system with Phillips hue, quickly do installations with button controls without messing with the wires. I have about five smart plugs in a drawer, I use one to control a fan I use to dry prints.


It is specially an issue when it comes to privacy. I don't think that makes sense at all... bringing in so many devices listening and monitoring you unnecessarily


Yes it is if you are careful.

By using home assistant and sonoff plugs flashed with tasmota firmware you can keep all of your data local.


Generally, as we see them often today, no.

In my view, homes need to be robust things that do not drain the people living in them.

Take an extreme example, my old camp trailer: It has a fridge, heater, range, and oven that all run off propane. We love that thing, and one of the things we love about it is how simple it all is and that it basically works no matter what.

Electric power is entirely optional. We have some batteries and lights in the storage bin, and a car battery (or two if wanted) are setup and charged by the car when we tow the trailer. Otherwise, turn the gas on, and it's good for about a week on the tanks we have fitted.

It's been that way since about 1974, when it was made new.

Given the very modest annual maintenance needed, that thing is probably going to work as designed for a long time yet.

People love the thing. It's simple, cheap, works well, and is low hassle, reliable living. I've gotten offers on it pretty much every year I have taken it out where others are doing the same thing. And this is despite the thing being well used, not nice and shiny.

Most people who have offered to buy it say the same thing, and that older, gas only tech works and works and works. Yup. It does exactly that, and I have no plans on getting rid of it.

Obviously, something like this predates all the hazards we've brought along with all the new tech. And that's the point!

As a home, that old trailer is great! We can do all our living and all that trailer does is not get in the way. We get comfort, shelter, food prep and storage, cold beers, and it all runs on very simple, robust tech, requiring only fuel and some very light annual maintenance.

Our current home is simple, and when I think about enhancements to it, the last thing I want to do is complicate everything and or introduce dependencies that could fail, or need changing, or my attention, or all that, plus something I didn't know about!!

Now, a home needs to be more than that camp trailer, but it's a great model to reason from.

To me, a smart home is one that uses robust tech with no dependencies, say with optional connections to the grid.

That way, it's mostly out of the way, and the people living in it get all the comfort they need, when they need it with the fewest hassles and a cost that makes sense.

I have some items on my home project list and they are centered around the basics, off grid capable. Should things get rough, we can operate it the same way we do that older trailer and be just fine.

To me, that's a smart home.

The "smart" tech being discussed frequently today exists on a layer or two above that "home" layer, and should be entirely optional, not points of failure or dependency.

In my current home, the appliances are all older, very robust things that just work.

For savings, automation is one way forward as is more efficient tech. When I do see more efficient gear that is not encumbered "digital toaster" style, I'll upgrade, but only if it's reasonably servicable. By that, I mean being able to open the thing up and buy a replacement component.

I've had a few events like this happen, and they were all the same:

Dryer fails to heat. Open it up, check the little safety thermostat. Passed. Inspect dryer heating element. Fail. Source new element, when it shows up, install it, check, done.

Oven fails to heat consistently. Same deal, source new oven element, install it, check, done.

Mixer quit mixing. Find little gear broken, order part, install, done.

It is not all as efficient as I would like. We did go through and improve lighting, and in the colder months, just put some clothes on for a nice savings.

And I'm perfectly willing to improve efficiency, but not at the cost of smart living and or ability to service and maintain the place I live.

The place I live is the very last place I want problems and dependencies popping up. Again, robust, simple, effective, inexpensive are the key elements of a smart home.


I would consider putting all smart devices on a different network that doesn't have access to the internet so that they can't phone home, and using some open software like https://www.home-assistant.io/ to control it...




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