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What's that touchscreen in my room?

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Re: What's that touchscreen in my room?

#331
post #314

Earlier quoted context omitted.

I have no frame of reference but I have a feeling here (usa) it's super illegal to "tamper" with any pub utilities infrastructure. Could be wrong, though, but no usb ports. That's really cool though I wish we could do that.

No doubt about the tampering comment. However, my gas, water, and electric meters are all wireless and now I want to be able to monitor them for on demand usage. We shall see.

Has there been talk about that becoming a thing?

Re: What's that touchscreen in my room?

#332

Earlier quoted context omitted.

Makes sense since you're in the netherlands, euro appliances generally get fed cold water and warm it internally, the 2kW peaks would be when it needs to warm up the cold water. The dryer has to warm air up pretty continuously to dry the contents. At 500W I assume it's a heat pump? (IIRC condensers are usually around or above 1kW)

Ah yes, the dish and laundry washers are indeed not “hot fill”, that is hard to find here indeed. The dryer is a heat pump yes, some years ago it was the most energy efficient one we could find. (But I guess it runs longer, relying more on tumbling than heat, and wears out cloth faster).

What happens if it gets hot water, but expects cold? Seems like if it's not too hot to melt plastic parts, it would be ok?

Re: What's that touchscreen in my room?

#333
post #275

Earlier quoted context omitted.

I think even people who don’t have diabetes could benefit from this. Would having access to my own glucose levels throughout the day give me some insights into how what I eat influences my own mood, energy levels etc?

Might, but as a non-diabetic your body self-regulate, so you'd usually see a large increase in blood sugars followed by a large drop as insulin blood levels increase and trigger its handling. And because the sensor needle goes through the skin it must be replaced pretty regularly, and if it's not covered by insurance it's not exactly free (the link from the sibling indicates £57, that's per fortnight). My diabetic co…

> because the sensor needle goes through the skin it must be replaced pretty regularly

I am an MRI radiographer and get patients to take these off for their scans.

According to the link below [1] they are good for 7 days. They aren’t cheap and removing them does cause some friction so I try tie the MRI scan up with a pending monitor change and quiz diabetic patients about them at booking.

Some have gone into the scanner by accident (patients not declaring them) and they seem to survive but I emphasise that the results might not be accurate afterwards.

[1] https://www.diabeticwarehouse.org/products/dexcom-g4-and-g5-...

Re: What's that touchscreen in my room?

#334

A few years ago I came to the realisation that if you want people to be more environmentally conscious or economical in terms of utility consumption, (electricity, water, gas, etc), they need far better data than a single figure per month. You want to be able to see usage to a resolution of at most 5 minutes. That way people can spot things like “having my electric heater on for those couple of hours used more electr…

The Sense system is great for this, gives you second level data, and identifies most appliances when they turn on. I enjoy using it!

Re: What's that touchscreen in my room?

#335

A few years ago I came to the realisation that if you want people to be more environmentally conscious or economical in terms of utility consumption, (electricity, water, gas, etc), they need far better data than a single figure per month. You want to be able to see usage to a resolution of at most 5 minutes. That way people can spot things like “having my electric heater on for those couple of hours used more electr…

This problem can easily be solved without any device at all. Of course, it demands education and "intelligent behavior". If people only had the curiosity to read the specs on a heater and see "2000W" of power, and compare it to "15W" of power on the specs of the LED bulb. Same for water. One can just place a bowl under the faucet and measure the time it takes to fill up. Now you have your water consumption rate. We can choose the "device based" route, but this road end with Idiocracy and problems so "big" nobody can solve them.

Re: What's that touchscreen in my room?

#336
If anyone is interested in having this type of real-time usage data for their own own home, I highly recommend IoTaWatt: https://iotawatt.com

It's a completely local energy monitor that you can install into your home's circuit breaker panel, and then view dashboards or read data via an API from a local web server running on-device. You choose how many sensors you want, but you can monitor your whole home as well as individual circuits.

For example, I track and trigger automations when my various appliances (laundry, dishwasher, microwave, etc) start/stop. It's very cool. Just be warned that it does require some research, basic understanding of electricity, and comfort working with high voltage mains connections if you plan to DIY it but I found it approachable and easy to setup.

What it looks like: https://i.ibb.co/qBVmBD1/IMG-1595.jpg

Re: What's that touchscreen in my room?

#337

Earlier quoted context omitted.

The reason why the Mirai botnet is still at large is: Android. From a business perspective nobody wants to pay the costly people that can do microcontroller programming. Frontend devs are dirt cheap, especially for something as simple as that interface displaying the bar charts.

> nobody wants to pay the costly people that can do microcontroller programming The embedded world isn't known for paying well.

Actually competent microcontroller programmers definitely earn way more then bargain barrel front end devs.

Re: What's that touchscreen in my room?

#338

Earlier quoted context omitted.

Ah yes, the dish and laundry washers are indeed not “hot fill”, that is hard to find here indeed. The dryer is a heat pump yes, some years ago it was the most energy efficient one we could find. (But I guess it runs longer, relying more on tumbling than heat, and wears out cloth faster).

I always wondered why we cannot find hot filled appliances in the old continent. Also, I wonder why compressors in heatpumps are not multi-speed (basically energy consumption can be modulated). If you are an expert please let me know I'd love to talk more.

> I always wondered why we cannot find hot filled appliances in the old continent.

You can find them but they'll be in the semi-professional space and above (relatively expensive high-duty).

They're very rare in the consumer space because

- it requires running more hot water lines / extensions, historically houses are built with lots of cold water lines but hot water lines only where required

- for their heating requirement, a normal electric plug is more than sufficient in the land of 230V, this is is a similar issue to kettles basically

- they require an internal heater anyway as residential water circuits come nowhere near the high temperature cycles: 50-53C is common to avoid risks of scalding but some are set as low as 45, the standard high temp cycles for washing machines are 60 and 90, and dishwasher commonly have a heavy cycle around 65

- it makes the machines more convoluted since they needs more inlets, a mixing valve, etc...

- they're not really compatible with hot water tanks: you don't want your dishes or laundry to empty your shower water, plus hot water tanks are commonly electrical so there's no real gain given per the above the machines need a heater anyway

Re: What's that touchscreen in my room?

#339

Earlier quoted context omitted.

Ah yes, the dish and laundry washers are indeed not “hot fill”, that is hard to find here indeed. The dryer is a heat pump yes, some years ago it was the most energy efficient one we could find. (But I guess it runs longer, relying more on tumbling than heat, and wears out cloth faster).

What happens if it gets hot water, but expects cold? Seems like if it's not too hot to melt plastic parts, it would be ok?

The colder cycles will not work correctly (they have only one inlet and no mixing circuit), they might scale more than normally, and I wouldn't be surprised if some put themselves into a security mode.

The plastics used for some of the inlet circuitry might also age abnormally when it gets 50C water rather than the, say, 10~30C range it is designed for.

Re: What's that touchscreen in my room?

#340

Earlier quoted context omitted.

The consumer element is the sugar to help the masses swallow the pill. If it was just about the consumer, the unit would never report its findings back to base. But blurting back your information is integral to, well, all smart devices. That is the point. Once the government has that info, it will be able to come up with bespoke taxes for you according to what it ordains as fair use. 'Your showers are too long', 'you…

> Once the government has that info, it will be able to come up with bespoke taxes for you according to what it ordains as fair use. 'Your showers are too long', 'your toolshed is too big a draw on the electric' therefore 'you need to buy carbon credits to offset the environmental damage you are causing'. This is likely to happen and is economically awful (far better to have constant carbon taxes), but it will be don…

Elected officials get into office with majority support of a constituency, but that's very far away from the majority of people supporting their collective actions while in office. In the US, politicians do what money wants them to, not voters. Consent of voters is often manufactured and misinformed.
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