News for hackers. Stuff that matters.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by kodah on Tuesday December 06, 2022 @01:48AM (#33876639)
I've been doing home automation for a long time. I just got a house that I own that I'm excited to jazz out.

That said, I built up an ideology that any automation added should never replace physical items. All automation should have physical kill switches. Any occupants of the home should have appropriate access to things that you would normally give them physical access to.

I implemented walking lights successfully in my old house by replacing switches and doing some neat presence detection (near-field and general) tricks. That mode could be turned off at the front of the house, and frankly I found myself using it because it'd get old sometimes, and other times you really do want all the lights on.

My garage door opener was another. With near 100% accuracy my garage door would open when I was coming down my alley way. It never false opened though, even if I stopped at the grocery store in front of my house. It sometimes failed to open and I actually had to push a button in my car.

Another note, not mentioned here from my skimming, is to never rely on cloud devices. Anything worth doing is worth doing off-line. If your home automation and security can be killed by chopping fiber or coax, then you have neither reliable automation or security. There's infinite options for off-line applications and liquidated DC servers are stupidly cheap to purchase.

Last, if you're going to do home automation, make sure you start by building it on a separate network from your browsing network (preferably air gapped) - especially if you intend on using WiFi devices. They will crowd and slow down your network. Vary your solutions. Put some on LoRa, some on WiFi, some on Ethernet, some on ZWave, etc...

Re:My Building Has Replaced Our Keys with an App. Is That Le... by twawaaay on Tuesday December 06, 2022 @02:05AM (#33876715)
We rented an airbnb, very nice, very luxurious. Had motion activated lights everywhere. We slept with the light on because it malfunctioned and there was no physical switch to turn it off -- we actually called the owner and he said there is no need, "they will turn off automatically".

It is funny people can't envision things breaking...

(And before you ask, the light was in a corridor but there was no door to the bedroom. The switch was stuck on because it was broken not because it overlooked the bed -- it did not)

Re:My Building Has Replaced Our Keys with an App. Is That Le... by shangxiao on Tuesday December 06, 2022 @02:39AM (#33876891)
> It is funny people can't envision things breaking...

This is what enraged me about the Therac-25 design which ended up killing people. There's a whole report to read on the design, failure and follow up but to paraphrase the designers eliminated the physical locking mechanism and had this attitude that "oh it's electronic so it won't wear out and fail".

Re:My Building Has Replaced Our Keys with an App. Is That Le... by pmontra on Tuesday December 06, 2022 @02:53AM (#33876954)
Therac-25 https://en.wikipedia.org/wiki/Therac-25

Software errors killing people with excessive radiation doses.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by Thiez on Tuesday December 06, 2022 @09:12AM (#33880042)
It's a bit sad to see it coming up to regularly. On the one hand it's a very classic example of programming bugs leading to injury and death. On the other hand it's so long ago that bringing it up so often makes it seem like it's the only good example of dangerous software. Software must be pretty amazing and safe that we have to keep bringing up an example from the late 80s.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by thatguy0900 on Tuesday December 06, 2022 @09:43AM (#33880687)
More that software that is critical is written with some level of care, and then never touched again out of fear of breaking it. See all the stories of hospital machines running windows xp.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by MobiusHorizons on Tuesday December 06, 2022 @10:38AM (#33881753)
That actually has a lot more to do with drivers not being provided by manufacturers for newer operating systems
Re:My Building Has Replaced Our Keys with an App. Is That Le... by smugma on Tuesday December 06, 2022 @10:01AM (#33881022)
It is useful to have a canonical example. Shared understanding of the problem, etc.

It’s related to why memes exist.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by ilyt on Tuesday December 06, 2022 @10:21AM (#33881433)
Uh, no. We have plenty of examples, they just don't kill people that often, because some industries learned their lessons.

If you want recent one, 737 MAX, killed way more than Therac-25. Although it was as much fault of software as suits around it wanting to save a penny on training, because if pilots knew about how it exactly worked they could've circumvented it

Re:My Building Has Replaced Our Keys with an App. Is That Le... by error503 on Tuesday December 06, 2022 @02:02PM (#33885263)
The software on the MAX worked as designed/specified; unlike Therac-25 there was no bug in the critical path, it was a series of design and oversight failures pushed by business and cost cutting interests, and the actual accidents were triggered (though I wouldn't consider it causal) by hardware failure in one of the AoA sensors. There was a bug regarding displaying an AoA disagree warning to the pilots, which despite being known wasn't fixed by Boeing, but this wouldn't have actually changed anything about the plane's behaviour.

To the credit of systems engineers, I can't think of a recent high profile fatal accident that could be reasonably blamed primarily on software, but that's not so much because software is infallible, but because systems are designed to fail safe.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by ionwake on Tuesday December 06, 2022 @07:36PM (#33889175)
Correct me if I’m wrong but wasn’t there an overflow in the software if the aircraft climbed too steeply ?

I’m sure I read that

Re:My Building Has Replaced Our Keys with an App. Is That Le... by error503 on Wednesday December 07, 2022 @07:33PM (#33902478)
I don't think so? Maybe a bug of this form was found, but I'm sure nothing like that was involved in the crashes. The flight control software performed as it was designed to, it wasn't software that sent the trim wheels spinning, but a bad AOA sensor and a lack of proper safety analysis, training and procedures.

There was a bug that caused the AOA DISAGREE alert on the EICAS not to be displayed, because at some point someone misunderstood the requirement that the AOA indicator should be hidden if they didn't pay for the upgrade, but this was just an indication and wouldn't have affected control at all (though likely would have hinted the pilots to a more appropriate cause of action).

One could also consider the lack of cross-checking between the two flight computers and associated AOA sensors to be a bug, but that was how the system was intentionally designed, because AOA wasn't considered a flight-critical measurement in the system's safety assessment, so they didn't consider this required. A holistic safety analysis was never really done inclusive of MCAS though, and this requirement probably just followed on from 737NG and wasn't really considered (at least thoughtfully...) in MCAS' design.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by ilyt on Wednesday December 07, 2022 @11:47AM (#33896635)
The main bug was:

* each flight computer used its own angle of attack sensor with no way to detect failure. Craft had 2 sensors, but they were not used together (apparently that was extra paid option...) * pilots didn't know how the system worked or when it is active, so they were fighting against it

don't remember anything about overflow

Re:My Building Has Replaced Our Keys with an App. Is That Le... by cptskippy on Tuesday December 06, 2022 @11:52AM (#33883132)
> Software must be pretty amazing and safe that we have to keep bringing up an example from the late 80s.

Or perhaps this failure settle the argument about whether or not physical lockouts were necessary and due to regulations you can no longer rely solely on software?

Re:My Building Has Replaced Our Keys with an App. Is That Le... by ilyt on Tuesday December 06, 2022 @09:14AM (#33880066)
> but to paraphrase the designers eliminated the physical locking mechanism and had this attitude that "oh it's electronic so it won't wear out and fail".

And it would have been entirely fine if there was electronic safeguards put between code and rest of the device, just like some stop lights have it (if control board sends green signal to both directions it fails out and doesn't allow that). Defense in depth and all that

Re:My Building Has Replaced Our Keys with an App. Is That Le... by angry_moose on Tuesday December 06, 2022 @09:32AM (#33880466)
Covered really well in episode 39 of Causality, one of my favorite podcasts:

https://engineered.network/causality/episode-39-therac-25/

Each episode focuses on a root cause analysis of a major engineering disaster. Presented in a dry but engaging way - he's a good presenter, but none of the "Radio Lab" style nonsense.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by xbmcuser on Tuesday December 06, 2022 @02:28AM (#33876842)
This reminds me a few years ago on a family holiday to malaysia I was sharing the room with my 10 year old cousin. I go downstairs to smoke suddenly his father calls me and tells me that my cousin called him crying in pitch black room as the lights went off. As he was lying on the bed reading a book motion censors did not detect any movement and the power cut off. Luckily he had his phone with him otherwise he would have been scarred for life. Why the fuck would they use motion censor for the light I would understand if they use it for the aircon or something but even then with the key card in the slot why would they set it like that.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by tasuki on Tuesday December 06, 2022 @03:35AM (#33877188)
> Luckily he had his phone with him otherwise he would have been scarred for life.

From the lights turning off? A ten year old?

Re:My Building Has Replaced Our Keys with an App. Is That Le... by giraffe_lady on Tuesday December 06, 2022 @04:57AM (#33877620)
Could be just a hyperbolic turn of phrase. The commenter may not be a native english speaker. The kid may have a developmental disability or a specific recent trauma related to this. Who fucking knows, it's none of our business. The story contributes to the discussion and makes its point either which way, what do you get from calling out this detail like this?
Re:My Building Has Replaced Our Keys with an App. Is That Le... by coldtea on Tuesday December 06, 2022 @05:14AM (#33877709)
The parent may have a condition making him nitpicky, curious, and blunt (like Aspergers) or a specific professional or other curiosity related to this. Who fucking knows, what do you get from calling him out like this? See how it goes both ways?
Re:My Building Has Replaced Our Keys with an App. Is That Le... by tasuki on Tuesday December 06, 2022 @10:02AM (#33881065)
Hehe, I very much do have a condition making me nitpicky and excessively curious! Thank you, your comment made me smile :)
Re:My Building Has Replaced Our Keys with an App. Is That Le... by giraffe_lady on Tuesday December 06, 2022 @10:36AM (#33881725)
FWIW I do have that condition as well, though it isn't usually called that these days.

What I gain from this is trying to move us away from comments that serve no purpose other than copy-editing each other and discouraging people from posting unless they can be confident in their adherence to the unwritten HN style guides. Which many people never can be, for various reasons.

If they had said that as part of a comment that overall served a different purpose I wouldn't have said anything. But it added nothing to this discussion except reinforcing the atmosphere that comments must be finely tuned to be taken seriously.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by coldtea on Tuesday December 06, 2022 @11:59AM (#33883267)
Yeah, the discussion could be kept more to the point. But it was a legitimate question for a sidenote - it's not like every subthread has to revolve around the original topic.

>FWIW I do have that condition as well, though it isn't usually called that these days

I know, never cared much for the politically and financially motivated rename, that imho blurs the condition across a larger area, instead of defining it better.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by giraffe_lady on Tuesday December 06, 2022 @12:07PM (#33883434)
> Asperger was a member of a seven-member commission that was to categorize 200 disabled children according to their "educational ability" to decide their fate. 35 children were classified as "hopeless cases" and transferred to Spiegelgrund, where they all died. He was part of the legitimization of the murders and as an expert contributed to their categorization into "usefulness levels".

In this case since the guy it was named after would have killed me given the choice, I'm glad they renamed it. Good info about where you stand though, thank you.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by coldtea on Tuesday December 06, 2022 @04:50PM (#33887578)
>Good info about where you stand though, thank you.

You appear to stand in a worse place, implying people are Nazis because they're OK with using the traditional name for a condition, just because the person who did studied it had connections to them.

Your quick judgement of others, is worse than that - more Nazi-like in practical action, than some "association by name used for a condition" (which is no associatation at all). If I got power I'd be OK with some tainted names.

If you got power you'd classify people as enemies, or worse, based on such trivial matters as whether they prefer the older established name for a condition (and don't particularly care if we don't retroactively erase the person who discovered it from medical history for his crimes 80 years after the fact).

Re:My Building Has Replaced Our Keys with an App. Is That Le... by xbmcuser on Tuesday December 06, 2022 @07:11AM (#33878473)
So a 10 year old in a foreign country in a room alone in pitch black dark for an hour or so won't get scared?. The room was pitch black we had checked in an hour or so ago so he was not even sure of where anything was in the room was. Though I confess part of the reason was his older siblings and cousins had been telling ghost stories the previous night.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by tasuki on Tuesday December 06, 2022 @09:59AM (#33880996)
You said "I go downstairs to smoke" and now you say "for an hour or so". I don't know your smoking habits, but isn't this a little unusual?

I don't think I've ever been in a "pitch black" hotel room. I'd bet there was light enough for him to start seeing just fine after five minutes.

The ghost stories, sure. But then he's scarred for life more by the ghost stories rather than by the lights turning off...

Re:My Building Has Replaced Our Keys with an App. Is That Le... by xbmcuser on Tuesday December 06, 2022 @07:14AM (#33878497)
But the point of the anecdotal story was using automation wrongly why would you care about the turn of phrase I used
Re:My Building Has Replaced Our Keys with an App. Is That Le... by tasuki on Tuesday December 06, 2022 @10:01AM (#33881034)
Sure agreed that automation is often pointless and more harmful than helpful. I'm just surprised you're making such a fuss about a ten year old in a dark room.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by tharne on Tuesday December 06, 2022 @03:59PM (#33886941)
> I'm just surprised you're making such a fuss about a ten year old in a dark room.

Pretty sure that was just being used as an example to underscore a broader point. No need to nitpick.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by Markoff on Tuesday December 06, 2022 @02:17AM (#33876776)
why not switch off power in breaker box for all rooms besides kitchen? surely they must have breaker in case there would be electrical fire or some repairs

edit: and now I'm 100% sure there are bots downvoting my comments, immediately downvoted less than minute from posting

Re:My Building Has Replaced Our Keys with an App. Is That Le... by anigbrowl on Tuesday December 06, 2022 @02:23AM (#33876816)
That's not something most people want to do, might violate the Airbnb agreement, and who knows what else might go wrong when it came time to turn things back on? Maybe people just think it's a bad idea.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by coldtea on Tuesday December 06, 2022 @05:11AM (#33877698)
Maybe those people are two afraid of BS eventuallities? I have anxiety and wouldn't think twice of doing that...
Re:My Building Has Replaced Our Keys with an App. Is That Le... by Markoff on Tuesday December 06, 2022 @05:49AM (#33877920)
surely I wouldn't care about some Airbnb agreement instead of sleeping with lights on, that's basically unusable apartment for me and breaks Airbnb agreement way more than trying to solve the issue if renter doesn't care to fix it immediately

not sure what should go wrong when you switch on the power again, blackouts happen

Re:My Building Has Replaced Our Keys with an App. Is That Le... by twawaaay on Tuesday December 06, 2022 @02:59AM (#33876986)
There are good reasons not to. A lot of apartments here have security devices which will call for assistance when the power is turned off. Then there are devices that expect power 24/7 like fridge. Also, since I was abroad, I relied on the Internet that was at the apartment that would be cut off if the power was turned off.

Also... you know... there are these funny little devices called switches that allow you to turn individual devices on and off without cutting power to entire apartment. Just saying...

Re:My Building Has Replaced Our Keys with an App. Is That Le... by mejutoco on Tuesday December 06, 2022 @03:15AM (#33877074)
Breaker boxes, at least were I am, are split in areas, that you can switch off independently. Switching the area were the lights were and leaving kitchen and router solves all your concerns except the security devices when power is off (which I personally never saw).

My first reaction would have been what OP suggested.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by tverbeure on Tuesday December 06, 2022 @03:21AM (#33877105)
You'd be surprised how many older houses don't comply with current electrical codes.

And even the current code in CA doesn't require separate circuits for each room. They require separate circuits for different functionality. E.g. lights vs power plugs.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by Symbiote on Tuesday December 06, 2022 @04:26AM (#33877469)
Even easier then, just turn off the lights.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by ilyt on Tuesday December 06, 2022 @09:21AM (#33880226)
Wouldn't that be... all of them? They were literally not build with code that didn't exist at the time. Why would that be surprising ?
Re:My Building Has Replaced Our Keys with an App. Is That Le... by ZiiS on Tuesday December 06, 2022 @04:29AM (#33877490)
You have obviously not been to the UK; breaker box will have a few illegible marker squiggles, most faded beyond reading, some with tape over and a second conflictibg squiggle. Even if you decode them then the fridge is just as likly to be on the hall as the kitchen
Re:My Building Has Replaced Our Keys with an App. Is That Le... by coldtea on Tuesday December 06, 2022 @05:10AM (#33877695)
Same here. You can still trivially try the various switches and see if they cut off the area of the house you're interested it. If the fridge is on the same circuit as the lights you want to kill, there goes you plan. But otherwise, it's fine. In most AirBnB's and rented rooms for short stays the fridge is empty or just has some water/sodas anyway, it's not like there would be the family's food for the month..
Re:My Building Has Replaced Our Keys with an App. Is That Le... by mejutoco on Tuesday December 06, 2022 @08:17AM (#33879172)
Thank you. This seems to me like the common sense approach to solve this problem IRL, as opposed to in a spherical cow world. It will work in 99% cases. In the rest, one can sleep with the lights on, or cover them (if possible).
Re:My Building Has Replaced Our Keys with an App. Is That Le... by Arrath on Tuesday December 06, 2022 @12:01PM (#33883319)
Unscrewing the bulb a couple turns used to be a great off switch.

Then Big Lighting ruined that by going to LED strips and what not.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by thfuran on Tuesday December 06, 2022 @07:09AM (#33878456)
I don't think I've ever seen a breaker box that was clearly and correctly labeled at any house that wasn't still on its first owner.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by willjp on Tuesday December 06, 2022 @08:14AM (#33879124)
The first thing I do when renting a new apartment is map out the circuits to outlets and leave a map next to the breaker box. We have also consistently had illegible squiggles (and strange circuit layouts) in Canada
Re:My Building Has Replaced Our Keys with an App. Is That Le... by alanbernstein on Tuesday December 06, 2022 @08:42AM (#33879528)
I have been working on the map for my house's circuits for 6 years. It's about 80% done.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by shakna on Tuesday December 06, 2022 @05:09AM (#33877687)
Whilst some breaker boxes are nice, modern, and make sense... Others are like this [0] and terrifying.

[0] https://reddit.com/r/australia/comments/yq4hks

Re:My Building Has Replaced Our Keys with an App. Is That Le... by coldtea on Tuesday December 06, 2022 @05:08AM (#33877681)
>A lot of apartments here have security devices which will call for assistance when the power is turned off

Some might, but I doubt they are a lot. None have such where I am for sure. People would need to turn power off for specific rooms/circuits or the whole thing once a year or so anyway (to do some electrical work, to change some light fixtures, etc). It also happens by itself if some machine overloads/there's a sudden surge. I've changed several rented houses, and it would ocassionally happen to all of them.

As for the fridge, he did say to leave the kitchen (or fridge including) circuit on.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by twawaaay on Tuesday December 06, 2022 @05:51AM (#33877928)
> Some might, but I doubt they are a lot. None have such where I am for sure.

Just your subjective knowledge of your local area and class of home you normally experience.

Not everybody enjoys the security that western democracies provide (although US and couple other countries seem to be slipping behind). In most of the world people with wealth above standard have to actually take special, pretty expensive precautions to preserve their wealth (and in some places lives).

Here people install security to call security company whenever the alarm is tripped. Lack of power is immediately suspect (thieves like to cut power). The security company is notified by the automation and they call the owner for security code. If the owner does not give the security code within required time they will immediately dispatch their patrol. The owner also has special security code in case he is compelled to give one and this triggers a specially escalated response.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by coldtea on Tuesday December 06, 2022 @06:30AM (#33878201)
>Just your subjective knowledge of your local area and class of home you normally experience.

So, like yours? When you said "A lot of apartments here have security devices" did you qualify it as "in non western countries with the right balance of affording security services and intenterrupted mains power"?

>Not everybody enjoys the security that western democracies provide

Well, not everybody who doesn't enjoy "the security that western democracies provide" has money to pay for a security company - or even the luxury of continuous power that is not frequently cut anyway, either.

In the context though, in a house with automatic sensors and such, I'd consider my case more likely.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by psychoslave on Tuesday December 06, 2022 @05:34AM (#33877822)
>Then there are devices that expect power 24/7 like fridge.

I documented a bit recently as in France we will potentially have 2h power extinction at grid level during this winter. Apparently you can have your fridge safely keeping your food for up to 4h, but you should not open it during that period obviously — although since I don’t have any radiator in my kitchen I’m rather confident it wouldn’t be that problematic in the middle of a winter that is announced especially cold.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by ilyt on Tuesday December 06, 2022 @09:20AM (#33880212)
> Apparently you can have your fridge safely keeping your food for up to 4h, but you should not open it during that period obviously

Kinda depends on fridge, altho sadly it's rare to see that number in manuals.

But one trick is to just take food that you want to eat anyway from the freezer and put it in fridge, the food will slowy defrost while cooling the fridge food. Just make sure water have somewhere to go

Re:My Building Has Replaced Our Keys with an App. Is That Le... by Markoff on Tuesday December 06, 2022 @05:56AM (#33877962)
>A lot of apartments here have security devices which will call for assistance when the power is turned off.

that's quite rare and bad design if you can't go overnight without power

>Then there are devices that expect power 24/7 like fridge.

that's why i said to leave kitchen ON, not that Airbnb fridge on first night would contain anything requiring power anyway

> Also, since I was abroad, I relied on the Internet that was at the apartment that would be cut off if the power was turned off.

dunno about you, but when I sleep I don't use internet, but maybe you are able to disable some parts of brain and use internet while sleeping

>Also... you know... there are these funny little devices called switches that allow you to turn individual devices on and off without cutting power to entire apartment. Just saying...

Also you know maybe read the comment I'm replying to about faulty automatic switches impossible to switch off.

I thought HN readers pay more attention to what they answer to and the context, but after reading some replies to my comment I've lost all hope that this site is any better than Reddit.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by pmontra on Tuesday December 06, 2022 @03:00AM (#33876991)
Maybe they don't have breaker boxes in every room or a breaker for every room, in a central box. Is that a requirement in your country? My house has several separated circuits but not one per room.

And maybe all those people reading HN and clicking into the comments of this post are actually bots.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by Markoff on Tuesday December 06, 2022 @06:02AM (#33878010)
then just disable all power, what do you need while you sleep? nothing, maybe AC but no AC beats sleeping with lights on, other than that it's only fridge which would be empty on their first night anyway

obviously other more elegant solution would be unscrewing bulbs, but they may be not accessible

Re:My Building Has Replaced Our Keys with an App. Is That Le... by thfuran on Tuesday December 06, 2022 @07:14AM (#33878495)
>only fridge which would be empty on their first night anyway

That's a bit of a weird claim. I'd say it's likely to be at its most full on the first night.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by Markoff on Tuesday December 06, 2022 @09:13AM (#33880056)
Do you have usually fridge in airbnb place filled with anything else than just drinks (which would be fine also without refridgeration) on first evening after coming?

Is the first thing you do in the afternoon after checking in airbnb place going to shop to buy tons of supplies to store them in fridge?

I'd think people have better things to do on the first evening than shopping for groceries besides something small for dinner (if any) and those few dinner things would be fine even without fridge or not worth sleepless night with lights on.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by thfuran on Tuesday December 06, 2022 @01:17PM (#33884616)
Do you not eat breakfast? Or meat?
Re:My Building Has Replaced Our Keys with an App. Is That Le... by Markoff on Wednesday December 07, 2022 @04:06AM (#33892241)
I usually pack some snacks or just buy something small for first dinner and breakfast, only later go to do proper shopping.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by kortilla on Tuesday December 06, 2022 @05:12AM (#33877703)
Because fucking with the electrical system in someone else’s house is usually frowned on.

Did you consider the insulin fridge in the garage you just shut off when you did that? How about the attic fan that keeps the place cool? The water softener that needed to do a recharge cycle. The electric vehicle plugged in that was waiting for night time trough to charge. etc, etc

> edit: and now I'm 100% sure there are bots downvoting my comments, immediately downvoted less than minute from posting

No, you’re just inconsiderate of people’s property.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by Markoff on Tuesday December 06, 2022 @05:47AM (#33877906)
maybe read the comment I'm replying to about guy in rented whole airbnb apartment with faulty motion sensors who had to sleep with lights on instead of switching off power in breaker box (or unscrewing bulbs if accessible), not sure why would anyone renting Airbnb apartment had any of those in rented apartment

you come out as completely ignorant of context who just gets angry for no reason

Re:My Building Has Replaced Our Keys with an App. Is That Le... by kortilla on Friday December 09, 2022 @03:42AM (#33919082)
I did read it. It doesn’t change how inappropriate it is to mess with the breaker boxes in other people’s property. The appropriate response was to contact the host.

> you come out as completely ignorant of context

Says the commenter who didn’t follow the context.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by Arrath on Tuesday December 06, 2022 @12:03PM (#33883367)
I wouldn't at all be surprised if the AirBNB in question had the utility room locked up to prevent the guest tampering with things. In my experience its about even odds whether or not you'd even be able to access things like the breaker box, water heater, or even the router.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by Markoff on Wednesday December 07, 2022 @04:08AM (#33892251)
Not accessible breaker box sounds extremely dangerous and illegal.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by Arrath on Wednesday December 07, 2022 @10:40AM (#33895588)
A goodly number of AirBNBs are flying in the face of local ordinances against short term stays and the like, why not flip a bird at the fire marshal while they do?
Re:My Building Has Replaced Our Keys with an App. Is That Le... by erfgh on Tuesday December 06, 2022 @05:33AM (#33877817)
Just turn it off at the fuse.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by smitty1e on Tuesday December 06, 2022 @05:45AM (#33877886)
Some fixtures may support yanking a bulb.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by type0 on Tuesday December 06, 2022 @06:29AM (#33878194)
> It is funny people can't envision things breaking...

By comparison the Clap switch is so simple that if it is quite at least you can sleep at night

Re:My Building Has Replaced Our Keys with an App. Is That Le... by nonethewiser on Tuesday December 06, 2022 @09:08AM (#33879962)
Take out the bulbs.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by yencabulator on Tuesday December 06, 2022 @08:04PM (#33889411)
A lot of modern light fixtures have LEDs built in to the gadget, no separate "bulb".
Re:My Building Has Replaced Our Keys with an App. Is That Le... by senko on Tuesday December 06, 2022 @02:37AM (#33876881)
> That said, I built up an ideology that any automation added should never replace physical items. All automation should have physical kill switches. Any occupants of the home should have appropriate access to things that you would normally give them physical access to.

Ah, the ideal of progressive enhancements. We know how that ended for HTML and JavaScript.

I agree with you but long term I believe that's going to be a losing game (except basic safety access akin to fire stairs today).

Re:My Building Has Replaced Our Keys with an App. Is That Le... by hdjjhhvvhga on Tuesday December 06, 2022 @02:05AM (#33876717)
> Anything worth doing is worth doing off-line.

But this is directly against the easiest line of profit so no, vendors will not stop going in that direction even if it makes no sense to most people.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by bratbag on Tuesday December 06, 2022 @02:34AM (#33876864)
I think most people's perception of what makes the most sense, involves someone else dealing with as much of the hassle as possible.

Which is why online enabled devices are popular and why companies cater for them.

If they could sell large numbers of offline versions at a markup, they would.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by ilyt on Tuesday December 06, 2022 @10:29AM (#33881580)
Then have it as selling point.

"Here is a box, we just run a container on it with your stuff, you can configure it in cloud as usual but all the stuff is run locally. Pay us monthly for convenience of setting it from cloud and software updates but don't worry, if we get out of business It Will Still Just Work".

Re:My Building Has Replaced Our Keys with an App. Is That Le... by ruleforty on Tuesday December 06, 2022 @03:03AM (#33877016)
In my case I don’t enter my home through the garage when leaving the house for the dog or just walking to the local shops and beach.

I solved opening the garage door when leaving by a much simpler approach: “Alexa, I’m leaving”(regex for various phrases) along with an Aqara button if I was on the phone.

For arrival of my car only, and not triggering when I would walk nearby (park and beach 1 block in either direction), I had home assistant dialed in to notice the Bluetooth connection to my cars audio by its ID from within the app etc. along with the proximity and whether I was moving towards or away. Away would close and towards would of course open. This was particularly tricky but as you explain always failsafes in place: garage door opener in car and for the opening mechanism was set to close in 2 mins but reset if there was motion in the garage. If I was marked away and there was motion in the garage it would close and also sound an audible alarm.

None of those of course would have been possible without NodeRed. It’s so much fun to use.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by kodah on Tuesday December 06, 2022 @10:40AM (#33881802)
In my experience presence detection, if you want it to be useful, almost always has to be custom for your situation. Everyone has different patterns based on personal preference and living situation. Glad you figured yours out!

NodeRed is great. I don't use it but if you don't want to spend a ton of time writing rote automation in code it's a dope option (and that's an absolutely fair take to have imo).

Re:My Building Has Replaced Our Keys with an App. Is That Le... by Narkov on Tuesday December 06, 2022 @04:20AM (#33877422)
> That said, I built up an ideology that any automation added should never replace physical items. All automation should have physical kill switches. Any occupants of the home should have appropriate access to things that you would normally give them physical access to.

I call this the grandma test. Can grandma come over to my place and still operate everything she needs without a CompSci degree.

It is definitely possible to have a very smart home but still have physical fallbacks that cater for most visitors.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by TheOtherHobbes on Tuesday December 06, 2022 @05:06AM (#33877671)
There was an ad doing the rounds recently in Europe showing a geek setting up voice-activated home automation. And then getting a tooth removed under heavy anaesthetic.

Turns out "Mmmmffmghfff!" is not a valid Alexa command.

Also a bad idea to have a voice activated door during torrential rain. (Which is a silly example. But even so.)

It's not even a UI problem. No one is going to be happy if the power goes off and they can't get in or out.

Or the lock fails open and everyone can get in and out.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by supermatt on Tuesday December 06, 2022 @05:33AM (#33877812)
Re:My Building Has Replaced Our Keys with an App. Is That Le... by wongarsu on Tuesday December 06, 2022 @05:28AM (#33877778)
> liquidated DC servers are stupidly cheap to purchase

Though not always cheap to operate, depending on your electricity costs.

I agree that liquidated equipment is great for these purposes (both servers, thin clients and small form factor office computers), but do a rough estimation of not just purchase cost but also yearly electricity cost. Some stuff is great, some stuff is being liquidated because of uneconomical TCO compared to newer equipment.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by ilyt on Tuesday December 06, 2022 @10:27AM (#33881534)
They are never cheap to operate. They got out of DC for a reason.

Few modern ones (on Intel side, AMD seems to be terrible with idle power usage) are not too bad but get something old and you'd be seeing 100W+ constant usage

Re:My Building Has Replaced Our Keys with an App. Is That Le... by kodah on Tuesday December 06, 2022 @10:44AM (#33881884)
This is a salient point. Any tips on hardware I could buy or build that can run many containers or VMs with variable power?
Re:My Building Has Replaced Our Keys with an App. Is That Le... by belthesar on Tuesday December 06, 2022 @11:04AM (#33882236)
The ultra small form factor PCs that have become popular in the business market are honestly great for this. Many times they're using laptop CPUs, which significantly shrink their TDP, leading to less heat waste and power consumption while still having all the good accelerators folks desire for many homelab concerns (video codec accelerators for home media servers, VT-x/d for virtualization acceleration, etc). Grabbing three of those and installing a healthy amount of local storage and RAM and/or using a NAS for decentralized storage will get most homelabbers a real long way to doing nearly anything they want to do, and allow for simple and reliable high availability configs if you're like me and your homelab projects suddenly creep into being production systems.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by npteljes on Tuesday December 06, 2022 @01:35PM (#33884873)
I don't know what kind and how many VMs are you planning to run, but simple desktop hardware can go a long way. And they scale back power usage nicely too, when not utilized. My setup is small and old, I run an AMD FX-6100 with 20 gigs of RAM, six hard drives and an SSD, and idle power draw is around 15W.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by Ord3rChaos on Tuesday December 06, 2022 @08:05AM (#33879009)
Great philosophy! I do this for everything, not just automation. My rule is: "Make everything optional."
Re:My Building Has Replaced Our Keys with an App. Is That Le... by bombcar on Tuesday December 06, 2022 @08:31AM (#33879346)
This is why I like the Lutron switches - they work both manual and via HomeKit and if you change state one way you still can the other way - and they have a physical tiny tab you can pull to kill power to it if needed as a third backup.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by qubitcoder on Tuesday December 06, 2022 @02:10PM (#33885397)
Agreed. On a related note, I use these smart bulb dimmers all over the house: https://www.lutron.com/en-US/Products/Pages/StandAloneContro...

They work beautifully with Hue bulbs and HomeKit, as well as offline without WiFi. It also avoids the situation of people disabling smart bulbs by using the physical switch.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by bombcar on Tuesday December 06, 2022 @06:53PM (#33888819)
Those little guys are great. The Hue button thing (with four settings is nice too) though I’m not entirely sure how beneficial dimmable is in most areas.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by nonethewiser on Tuesday December 06, 2022 @09:09AM (#33879982)
All the power to you, and that is a good philosophy, but my god do I hate smart homes.
Re:My Building Has Replaced Our Keys with an App. Is That Le... by sumtechguy on Tuesday December 06, 2022 @09:43AM (#33880679)
IoTs application in the home is neat and flashy but kind of a head scratcher. Everyone trying to get a lock on it and get that sweet sweet recurring monthly revenue. IoT application in the home looks cool, until you realize you are going to be replacing light switches every few years. My parents have light switches from the house they bought in the 70s, that was built in the 40s that have never been replaced and still work. Raise your hand if you think any of this zigbee/wifi enabled junk will still work in 70+ years much less 20 with no replacement? IoT works good in an industrial case where getting at something is a real pain. Such as monitoring a piece of equipment 3 miles up some rando dirt road and the people that maintain it cost 200 dollars an hour just to drive for 6 hours to look at it or worse have to go get a part and wait another 2-3 days. Rather pay them 200 an hour to fix something than 200 an hour to plug in a computer to read some outputs then drive home.

my new house has all zigbee enabled stuff. I had zero say in it. I will use them for awhile. But I know eventually I am going to get extremely angry at them and will just go buy a pile of eaton and ge light toggle switches and basically not worry about it again. Also someone in this thread suggested a separate network. Good idea. Guess I am going to be buying a decent router at some point.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by dotnet00 on Tuesday December 06, 2022 @10:48AM (#33881953)
>Raise your hand if you think any of this zigbee/wifi enabled junk will still work in 70+ years much less 20 with no replacement?

Surely you aren't also expecting to use the same lightbulbs for 70 years? Of course most of the Zigbee stuff won't last 70 years, but it isn't fundamentally all that different from light bulbs and other household appliances not tending to be able to handle regular use for 70 years. Especially lately with most 'smart' light bulbs being in the same form factor as 'dumb' ones.

As for switches, it's a digital system, if the switch breaks you are carrying a device capable of fulfilling the same function in your pocket (and potentially even wearing such a device on your wrist).

Re:My Building Has Replaced Our Keys with an App. Is That Le... by sumtechguy on Tuesday December 06, 2022 @01:52PM (#33885149)
>As for switches, it's a digital system, if the switch breaks you are carrying a device capable of fulfilling the same function in your pocket

If the service/app is still around. And your IoT system? Is it compatible with the latest ver of android or iPhone? Many of these companies come and go very quickly. Pretty much as soon as the VC funding runs out, or they want to go play with 'their newest stack'. Then you get to spend another 200 bucks for a new 'hub' so the app can work again. Then hope the new hub can interpolate with the old gear. Else you get to update that too.

Home IoT gets one thing very wrong and it is why many do not want it. Timeframes are measured in 1-3 years instead of 1-3 decades. I know what timeframes I expect different parts of my system to work in. Short timeframes for toggle switches feels wrong. Because I can spend 3 bucks and have a switch that lasts decades with nearly zero upkeep and little to no ongoing monetary cost.

Also support is kind of random. Take for example Linus tech tips. He went full on into home automation. Yet even being a decent name in tech, the company that sold him his switches could not give him the right thing. He has a good chunk of his switches that may or may not do what he needs. Firmware update would fix it. But to do that he has to buy random update stations that may or may not come with the firmware. That is 1 toggle switch with a motion sensor. Stack all of that together and you get random 'well this bit does not work right'. I really do not want random when I walk into a room if the light will turn on and stay on. Then do what it says on the tin and turn off when I leave. If Linus can not get these companies to do the right thing what hope do I have?

Home automation for me is in that uncanny valley of frustration and magical. I used to write industrial ones. My timeframe of 'it has to work for a long time' is very jaded by that.

I can see you and I are optimizing for different results. I am optimizing for 'do not have to mess with it again or as little as possible' and you are optimizing for 'check out what my house does'. Both are worthy goals.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by dotnet00 on Tuesday December 06, 2022 @02:49PM (#33886009)
>If the service/app is still around. And your IoT system? Is it compatible with the latest ver of android or iPhone? Many of these companies come and go very quickly. Pretty much as soon as the VC funding runs out, or they want to go play with 'their newest stack'. Then you get to spend another 200 bucks for a new 'hub' so the app can work again. Then hope the new hub can interpolate with the old gear. Else you get to update that too.

My 'service/app' is an open source program (Home Assistant and Zigbee2MQTT, although previously I have used NodeRed instead to provide the browser based control panel), the hub is an old server with a usb dongle with open source firmware. While there is an app available, there doesn't have to be one as there is also a browser based interface (which doesn't have to be exposed to the internet). The bulbs are a mix of various cheap brands off Amazon which are popular enough to have good support.

Sure, I have the benefit that as a techy I can handle (and to an extent enjoy) maintaining this, but that's mostly a matter of proper packaging, as it isn't a particularly complex thing to set up and is pretty close to zero maintenance.

Re:My Building Has Replaced Our Keys with an App. Is That Le... by ilyt on Tuesday December 06, 2022 @09:27AM (#33880356)
It's shame there is not much commercial pull in more of "local hub" model.

Just have everything talk (via MQTT or whatever) to local hub (that could double down as internet router, or whatever else) running a container with queue server.

Then you can just spin up second "app" (another container) with local controller, or connect that queue to vendor's cloud and their own app. Or have failover between one and other. Hell, integrate the two where you have one place to add all of your rules, but what is possible to do locally would be done.

The vendor could charge monthly for their cloud toys but not have to run all automation in the cloud (cost savings) and the user would get a box that can be configured from anywhere, but do vast majority of tasks locally and not be dependent on internet for basics.