For engineering questions involving consumer electronics. Support / troubleshooting questions about consumer electronics are off-topic and will be closed.
Questions tagged [consumer-electronics]
91 questions
8
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1 answer
Why do modern phone cameras apparently have three or even more different camera lenses in almost the same spot?
I saw this today:
It's not the first time I see it, but I wonder what this is about. Why do they have three big what I assume are camera lenses? And what's the two smaller "spots" in the same area?
Are they for making some kind of "3D" view or…
Karanveer H
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2
votes
1 answer
What version of Bluetooth does the Echo Show 5 support?
Title says it all. I can’t find the Bluetooth version, only that it supports Bluetooth. Also, forgive me if this question is off topic here.
Evan93
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2
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4 answers
How can the ink dry so quickly after it comes out from an inkjet printer?
Every time I print a page with my inkjet printer, knowing that it literally "jets" ink all over the sheet, I'm baffled by how it's immediately dried. I cannot smudge it with my fingers even if I try. They can be instantly stacked on top of each…
Nai Karecki
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2
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3 answers
Why do modern consoles require active cooling when old consoles did not?
I grew up with the Pong, NES, SNES, Mega Drive, Saturn, Nintendo 64, PlayStation, Game Boys, etc. None of these made any kind of noise when powered on. They were 100% silent. You just flicked them on, and they electrically were powering the game…
Wc Goodhall
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1
vote
0 answers
Analysing UART Signal From E-Scooter Controller
I'm currently working on a project with an electric scooter, I intend to install a larger battery into the scooter and also replace the stock 300W controller for a VESC. BUT I want to keep the original screen as it looks nice and also has built-in…
Arran
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1
vote
1 answer
Is it only "home-burned" CDs/discs that "expire" in a few years, or does that also apply to "professionally pressed" ones as well?
I've many times heard things along the lines of:
Those CDs/DVDs won't last forever. In fact, the data will be gone/corrupted in just a few years.
Does this apply only to discs that were "burned" by consumer equipment, i. e. a disc burner in a…
Torez
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1
vote
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What are these mysterious switches on my old VCR?
I have a Samsung VX-306/EDI (VHS PAL) VCR bought in/from the 1990s.
I have lost the physical manual and was unable to find any digital copy of it online (what a shocker...).
Now I'm wondering what the following three switches/settings are…
Z. Addonizio
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1
vote
2 answers
Why was air conditioning so early and wide-spread in the USA specifically?
As far as I understand things, air conditioning was standard in cars in the USA as early as by the mid-1950s or so. Perhaps even sooner.
In the late 1990s, our car (common model of Volvo, albeit a few years old for sure) in Europe had no air…
Nikki Est
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0
votes
1 answer
Is there such a thing as a modern-manufactured, flat, fake CRT TV?
CRT TVs were great, and an absolute must for all classic video games. However, it cannot be denied that it's impossible to buy a new CRT TV today, at least in any kind of normal store, and you rarely even see any old ones being thrown away anymore.…
M. S.
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0
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1 answer
Does a stove which has started emitting heat on the non-circled areas have something wrong with it?
We have a electric stove which looks like it was designed in the late 1980s or early 1990s, and probably was made in ~1995.
It has physical knobs that you turn around to change the heat for each plate. Four plates. The plates are metallic and…
J. D.
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0
votes
2 answers
What is the range of frequency used in TV remote?
Household TV remote control use Infrared rays. Infrared rays have frequency from 300 GHz to 430 THz. What is the range of frequency used in TV remote?
akm
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