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What's that touchscreen in my room?

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Re: What's that touchscreen in my room?

#51
post #35
post #6

>DATE & TIME ARE ALWAYS CORRECT AND NEVER NEED TO BE ADJUSTED Reads like a quote from a Philip K. Dick book.

My guess was that it probably had a time correction feature from those British radio tower integration, but this device is from 2015 (says in the article), so probably not.

Maybe they originally intended for them to be internet connected? That would also explain the MQTT.

Re: What's that touchscreen in my room?

#53
> There were two strings printed with labels “SSID” and “Pwd”. I froze in horror. They wouldn’t dare. It is literally 3 meter distance. These are embedded devices, they do not need this complexity…

Not surprising at all. I would expect that a lot of these are bought as retrofits, and not as a part of new construction. Running wires through existing walls can be annoying, and they don't want to put that barrier to sale in front of them. And you can get a good-enough WiFi chipset for a few bucks these days.

> I need a 3A fuse [...] After installation, I checked the temperature of the fuse multiple times during the day to get at least some indication that things are not going to get worse. It worked fine for a more than a week now, but I still do not recommend experiments like this to anyone.

Probably don't need to be so worried here. If it's a 3A fuse, the entirety of your apartment's mains power is not running through it. A 3A fuse would burn out in a fraction of a second if you tried to do that.

Also, oh, man, Jazelle. I'd forgotten about that. Hardware support for Java bytecode... that did not pan out well.

Re: What's that touchscreen in my room?

#54
post #35

Earlier quoted context omitted.

My guess was that it probably had a time correction feature from those British radio tower integration, but this device is from 2015 (says in the article), so probably not.

Maybe they originally intended for them to be internet connected? That would also explain the MQTT.

Yeah I think it makes more sense like you said. It has the Wifi stuff there already too.

Re: What's that touchscreen in my room?

#55
post #48

Earlier quoted context omitted.

I was surprised someone would order this from Amazon, rather than get one from the nearest convenience shop or supermarket. Those places only sell the normal thing for local use. I was further surprised that someone would be worried about installing the fuse. Is he also worried about plugging things in generally?

I see the recommendation every so often to buy a fuse locally, but I don’t live in Akihabara. I HAVE to buy online electronic components, and usually it ends up being Amazon, because other national suppliers insist on charging $15 for courier shipping on a $2 part.

The person lives in an apartment in Britain. Apartments are only built in towns and cities, and are generally within walking distance of convenience shops and supermarkets.

Every plug in Britain has a fuse, so they are about as easy to buy as replacement light bulbs. Probably on the same shelf.

Re: What's that touchscreen in my room?

#57

I really hope we'll look back at this fad of android powered wifi domestic IoT devices one day and laugh about how silly it all was. Not an IoT hater. I've worked for IoT companies, and there's a lot of very smart embedded engineers doing very cool things in the space. But an old android tablet installed in the wall with a WiFI point? oh dear.

What do you recommend as an alternative?

Re: What's that touchscreen in my room?

#58
> tcf-agent is [...] probably the second biggest security vulnerability after passwordless root SSH.

I thought that passwordless SSH is actually a good idea in general for servers? Assuming, that is, that the public/private key login mechanism is used as the alternative to passwords.

Re: What's that touchscreen in my room?

#59
> TCF seems to be closedly tied to Eclipse ecosystem. The Getting Started guide suggests several plugins for Eclipse as the main way to interact with tcf-agent. I tried installing these plugins on a new version of Eclipse and it is absolutely impossible. There are dependency issues everywhere and when you actually try to install the missing dependencies, Eclipse does not let you because they conflict with some other dependencies.

I laughed out loud at this part. Some things never changed I guess.

Re: What's that touchscreen in my room?

#60

Hey Nikita, that was an excellent read. It felt like a pivotal scene in a movie that would change the course of the succeeding narrative. I envy the ability to write so nicely and clearly, making it enjoyable for most generally technical people and keeping us engaged. I will watch out for more articles.

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