askelectronics

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Hexagon, in Light is light 🤷

Also known as “incandescent lightbulb”

sploosh,

Also, heating elements. Which I guess are just durable incandescent lightbulbs.

mvirts,

The viewing angles on these new LER displays are going to be insane

mindbleach,

Don’t even need to be facing them!

Darkassassin07, in Light is light 🤷
@Darkassassin07@lemmy.ca avatar

Every diode is an LED if used wrong enough.

CJOtheReal,

Everything is a Firestarter if you use it with high enough voltage…

0x4E4F,
@0x4E4F@sh.itjust.works avatar

Even Keith Flint.

CJOtheReal,

Yes.

nothacking, in I tried to make an electromagnet at home but when I connect the two copper wires to a 1.5V battery it keeps short circuiting and heating up. Also it doesn't attract other nails.

Without insulation on the wire, the turns are shorted to each other and the nail.

superweeniehutjrs, in Should I buy a Fairphone? If not, what SHOULD I buy and why?

If you already have a working phone, then no. Get the most out of what you already have.

Donkter, in Light is light 🤷

Everything is a light emitting resistor if you send enough power through it.

0x4E4F,
@0x4E4F@sh.itjust.works avatar

The sun: Damn it, I knew it 😠. I thought I was special 🥺.

madmaurice,
@madmaurice@discuss.tchncs.de avatar

In university in the first lecture I visited they demonstrated that fact using a pickle. They sent current through and it glowed.

birdcat, in can you see a beeper in this image?
@birdcat@lemmy.ml avatar

FOUND THAT PIECE OF SHIT! 🥳

Hiding under a hidden and additionally enclosed and secured circuit board, omg cannot believe I didn’t break it removing that shit 😅

12

RocketBoots,

There he is! Yup, piezo buzzer, good work op.

cmnybo, in Is this a fuse? If so, what kind? if not, what is it?

No, there’s no fuse here. From top to bottom, there is an electrolytic capacitor, zener diode, and a 4MHz resonator.

SpikesOtherDog,

Ding ding ding

For op, ZD means zener diode.

reric88,
@reric88@beehaw.org avatar

Thank you for your answer. I will continue looking for the fault

troyunrau, in Light is light 🤷
@troyunrau@lemmy.ca avatar

My stovetop is a light emitting resistor. And compared to LEDs, it is multifrequency! Checkmate atheists.

Death_Equity,

Same resistance, variable voltage.

m0darn, in Is “harvesting” small amounts of electricity a fools errand?

If you’re doing it to learn about electronics and physics it’s a great thing to do.

Tinkering is fulfilling in and of itself.

You may be interested in the Kelvin Water Dropper.

rarely,

Oh yeah, i’ve seen that before! I’ll need to try to make one of these as well. Looks like a fun experiment!

ThankYouVeryMuch, in I tried to make an electromagnet at home but when I connect the two copper wires to a 1.5V battery it keeps short circuiting and heating up. Also it doesn't attract other nails.
@ThankYouVeryMuch@kbin.social avatar

You need your wire to be isolated, and many more turns

M_Reimer, in What software do you use for PCB design?

I would recomment to try Kicad for this. It is free and should do just what you want.

thzihdd,

Second that. Did my own Keyboard design with it with zero preknowledge and available community resources.

MrPozor,

Another vote for Kicad. I have done a small project with it and it worked perfectly.

Saigonauticon,

Yeah! I tried it years back, and it was not so good.

Fast forward to this month. I try it again and am really impressed! It's great now!

I was using it on client work within hours.

odium, in Should I buy a Fairphone? If not, what SHOULD I buy and why?

I need a lot more information about you before recommending something.

  • your location (not all models of fairphone support all countries)
  • what things you regularly do with your phone
  • how strongly you care about various issues (privacy, Foss, environment friendly, fair trade, anti-monopolies, etc.)
  • How much you need the money (it’s an expensive phone for the specs)
ahriboy,
@ahriboy@lemmy.dbzer0.com avatar

Pay attention to LTE and 5G bands. mmWave is not available in most 5G ready countries.

thebardingreen,
@thebardingreen@lemmy.starlightkel.xyz avatar
  • My Android phone that I’ve had for several years just died forever and I am currently without a phone (other than Google Voice on my computer).
  • I’m in the US. Carrier is T Mobile. I understand I’d have to place my order through a third party.
  • Things I care about: All of the above, as long as I can do my work.
  • I have the budget.

Things I do regularly:

  • Make phone calls.
  • Check my email.
  • Text messages.
  • Signal
  • Podcasts and Audiobooks (I’m currently going nuts trying to do chores without my normal audio stimulation). I need Audible and I need some app that will let me keep all my subscriptions and Patreon benefits.
  • Magic Arena.
  • Lemmy (I currently just use it in a browser, last time I tried Jerboa it was super buggy)
  • ChatGPT app.

I also “Hey Google” all the time. I’m not sure what the state of deGoogled voice assistants is. If I could “Hey ChatGPT” it would be orders of magnitude more useful than “Hey Google.” Losing voice assistance isn’t a deal breaker, but it’s something I do use frequently.

Probably 40% of my phone use is Magic Arena and 40% is podcasts and audiobooks. Then probably 5% is “Hey Google, set an alarm for 5 minutes / OK Google, set an alarm for 6:00 AM.”

Google Services I need for work… but I’m willing to hack my way around to get them, as long as it’s possible.

  • Google Voice (non negotiable, sadly).
  • My work email is through Google.
  • My work video conferences are through Google Meet.
  • My work calendar is through Google and my phone gives me 10 minute notifications before a meeting.

I would like to degoogle as much as possible, but these are work requirements, and my ADHD brain can’t handle having two phones (one will get left uncharged / lost / never turned on and the odds are that will be the work one).

Fluid,
@Fluid@aussie.zone avatar

Unfortunately what you’re looking for doesn’t exist. We all have been down this journey. There was some hope a few years back with Purism reviving dreams of a linux phone, but they shit the bed and now there is no viable alternative outside the big two.

odium, (edited )

www.kimovil.com/en/…/fairphone-5

Fairphone 5 will support all of T Mobile’s 4g bands, but only half of the 5g bands. This means that it will have lower 5g coverage than a US phone, but it will have as much 4g coverage as any US phone using t mobile. Based on your use cases, I don’t think there will be too many problems if your phone doesn’t get 5g speeds. Remember that most ppl didn’t have 5g just 3-4 years ago and people were able to do everything that you’re planning on doing with 4g networks.

Try to buy it from a place with a return policy so you can return it if your home or work doesn’t have service with a compatible band.

If you are going to look into alternative OSes, consider degoogled androids over linux phones as you seem to need some android specific apps. Most degoogled androids have the ability to install Google apps with something called microg. For voice assistants, you might be able to install Google voice using microg or choose an open source voice assistant like this one: github.com/PoCInnovation/Elivia-AI. I don’t use voice assistants much, so I’m not too sure how well those work.

THE_ANON,

Jerboa is solid now for your information

calamityjanitor,

Fair phone is awesome but keep in mind it uses a very slow IoT CPU, the Qualcomm QCM6490. I don’t know how intense MTG arena is but check reviews for comparisons before buying if that’s a big part of your phone needs.

Dekkia,
@Dekkia@this.doesnotcut.it avatar

I’d say “very slow” is overstating it a bit.

It’s not a gaming phone of course, but besides that it’s more than enough for everything else.

scoobford, in Should I buy a Fairphone? If not, what SHOULD I buy and why?

In my opinion, the pixel is the best option simply for grapheneOS. The privacy and security is unmatched, which are serious concerns these days.

That being said, the fairphone is an extra ~300€ here.

PotatoesFall,

Fairphone 4 can run CalyxOS

scoobford,

It can, and I’d definitely take that over stock, but Calyx is less private and much less secure.

blog.privacyguides.org/…/grapheneos-or-calyxos/

PotatoesFall,

Yeah I guess it depends if you care more aboutrepairablre and sustainable hardware or privacy in the software. shame we can’t have both :P

scoobford,

I know. Unfortunately, it is now illegal to tall about abortion here (sort of), so my choice there is clear.

Neato,
@Neato@ttrpg.network avatar

Pixel a series. Half the price for not much given up.

half_built_pyramids,

Thought pixel was Google and tracked everything?

scoobford, (edited )

It is, but its big advantage is aftermarket software support.

GrapheneOS in particular only supports pixels due to their security features, and is (almost) entirely disinfected. It’s about as private as you can get without resorting to a Linux phone or pager.

linuxPIPEpower,

Also CalyxOS

odium, (edited )

The default android installation is, but you can delete it and install another OS onto it. Which is something you can’t do on Samsungs and most other manufacturers.

glibg10b,

That doesn’t exclude hardware-based spyware

Neato, (edited )
@Neato@ttrpg.network avatar

Indeed. But I was responding to above who recommended Pixel. If you don’t need the features you get from full Pixel series, I recommend the A series since it’s a lot cheaper.

chemicalwonka, (edited ) in Light is light 🤷
@chemicalwonka@discuss.tchncs.de avatar

If you stop to think about , all resistors are emitting light, but under certain conditions it becomes visible (to our eyes)

LazaroFilm, (edited ) in Light is light 🤷
@LazaroFilm@lemmy.world avatar

Gas emitting capacitor

Death_Equity,

Smoke producing transistor

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