There already exists "kinetic" switches for lights etc whose switch contains some passive electronics that when actuated produces enough energy to emit a radio signal that can be read by a relay module. They're pretty handy as you can basically place the switch anywhere you want without the need for the wires to be there. The relay can live in the light fitting or somewhere else convenient.
There's probably no reason why these kinetic switches can't also be used for detecting other events like doors opening/closing etc. I feel like a radio signal is a bit more reliable and easier to detect than high frequency sound.
I also think calling these a "sensor" is a bit of a stretch. They detect events but have no knowledge of the current state of the thing they're sensing. E.g. the can detect a door opening/closing, but have no idea if the door is open or closed at a given time
Interesting to see Spain having such low IPv6 adoption. Perhaps that's exacerbated the issues caused there by blocking IPs during football matches that we've seen mentioned in recent HN posts.
Are you with SFR? I also seem to only have a static IPv4 (I don't pay for it, but it's never changed in the lifetime of the connection). I asked for an IPv6 but they said it was not possible/difficult.
The other replies answer this question, but it’s worth mentioning the public suffix list which contains a list of domain suffixes that have subdomains that are controlled by different people. E.g github.io, wordpress.com
Browser use this list to prevent cookie shared between sites using the suffixes on the list. E.g evil.github.io will not receive cookies from nice.github.io, or any other .github.io origin, regardless of the SameSite attribute
Some of United's own aircraft are over 30 years old [1]. If you can rely on a well-maintained 30+ year-old aircraft to fly you halfway accross the world I think you can rely on a similar-aged car to drive across the country.
No, because unlike a password you never provide the private key for a passkey to the site you’re logging into, which is how many password breaches occur.
I wonder if it would be possible to figure out which pins are connected to what on the device's board and just flash the thing completely with ESPHome and write a custom yaml config for it, rather than adapting the existing vendor firmware.
You get more heat out of using a given quantity of gas to generate electricity which is used to to power a heat pump than you do by burning the gas directly for heat, even when considering generation and transmission losses etc.
Given that even during a time of low output from renewables we still only rely on 53% gas for electricity generation it's still much more beneficial environmentally to use a heat pump.
The monetary cost is another story though, and I agree we do need to work on weaning ourselves off gas.
It's a shame that some sites are abusing this potentially useful feature to try and increase engagement on their site.
The correct (IMO) way to use this is to request permission after a user initiates it. E.g. clicking a button somewhere in the UI that says "Enable notifications" whilst being in some context where it makes sense to potentially want to enable them.
This is how the web share API works. Calling `navigator.share()` without user interaction will fail as it requires "transient activation"[2]
I don't think customers not caring is a valid reason to not do this. Compromised IoT devices don't only cause harm to their owners, but also external networks and the internet as a whole.
A compromised doorbell, or lightbulb etc can be used as part of a botnet to perform DDoS attacks or other nasty activities.
An analogy is like saying we shouldn't work on reducing the pollution emmitted by motor vehicles because the users of these vehicles don't care about how much pollution they cause and would buy them regardless. It's the negative externalities that we need to consider.
A few years ago it seemed everyone in London used Uber the whole time to get around. It was pretty cheap and convenient.
Nowadays very few people I know seem to use Uber (and the equivalents) on even an occasional basis. It's a lot more expensive than it used to be and you just can't rely on it any more.
I tried to get one last month for the first time in ages (from a not particularly out-of-way location) and no driver was around to accept my booking. It took over an hour of trying and I eventually managed to get a Bolt. It was a painful experience.
In a way it's a good thing - I don't think it's sustainable to have everyone be driven around in private. vehicles in European cities, especially when there's often very good public transit available. There was a point when Uber usage was simply a lazy habit for people. Although I accept that for some people and situations it is the best option (disabled, lots of luggage etc)
Solar is pretty popular in the UK. Panels have reduced in cost per watt and energy bills have increased so much that it makes it worthwhile for many homes and businesses.
We do get the occasional sunny day contrary to popular belief, but even on cloudy days it's possible to generate a decent amount of energy.
We also have very long days in summer which can make for a decent amount of kWh/day (although the opposite is true in winter)
There's probably no reason why these kinetic switches can't also be used for detecting other events like doors opening/closing etc. I feel like a radio signal is a bit more reliable and easier to detect than high frequency sound.
I also think calling these a "sensor" is a bit of a stretch. They detect events but have no knowledge of the current state of the thing they're sensing. E.g. the can detect a door opening/closing, but have no idea if the door is open or closed at a given time