17 votes

New community suggestion: ~tech.electronics

Every once in awhile I have one of these ideas, but this one I think would be incredibly fun and interesting to have: ~electronics or (~tech.electronics || ~engineering.electronics), , programming || ~tech.programming. forgot momentarily that ~comp was a thing.

Not as a community for tech news or product discussions (we have ~tech for that) but for electronics research, electronic hobbies/diy, ideas, Q&A, etc etc. With our seemingly higher than average hard tech professional community on here I think this would be great and really bring a new type of content into our fold that could be interesting and and exciting.

I've brought up ~hardware before, but I think ~electronics is more widespread, could include anything to do with electronics: PCBs, computers/desktops, sound/audio, lighting, robotics, electrical work, etc.

While I was writing this I realized, and was quite surprised that we don't have something like ~tech.programming on here either, maybe that should be one as well to consider. ~comp is a thing, I post there.

20 comments

  1. [3]
    fxgn
    Link
    Isn't ~comp already basically ~programming?

    Isn't ~comp already basically ~programming?

    9 votes
    1. macleod
      (edited )
      Link Parent
      Yeah, I even post there, forgot it for a moment, I even updated the log pretty soon after posting lol, it was an afterthought anyway for ~electronics

      Yeah, I even post there, forgot it for a moment, I even updated the log pretty soon after posting lol, it was an afterthought anyway for ~electronics

      4 votes
  2. [5]
    xk3
    (edited )
    Link
    ~engineering.electronics is quite a bit more clear. ~tech.electronics might be interpreted as consumer electronics like TVs and dish washers I think you could just post to ~engineering and tag...

    ~engineering.electronics is quite a bit more clear. ~tech.electronics might be interpreted as consumer electronics like TVs and dish washers

    I think you could just post to ~engineering and tag with electronics (or electrical for electrical work)


    Prior art which might be helpful:

    If a new group is to be justified, its topic must already be under discussion somewhere in existing Usenet groups. The question is: under what circumstances is a new group warranted?

    1. If the topic is consistently dominating discussion in a more general group (e.g. 80% of discussion in alt.books.horror is about one author). Forming a new group because of this reason is called "splitting". If you want to form a newsgroup by splitting from an existing group, you should discuss the idea of a new group in the existing group before coming to alt.config with a proposal. People have to agree that there is a logical way to split the discussion. The old and new group would both be need to be viable after the split.

      Make sure the people contributing to the existing group will be happy moving to a new group. Put the findings of your discussion within the group in your proposal.

    2. The topic is being discussed in many different groups (and is being cross-posted to those groups) because people can't decide which group is most suitable. (e.g. a game is discussed in several different newsgroups). Forming a new group because of this reason is called "consolidating". You must be able to come to alt.config with numerical evidence that there is enough relevant discussion already happening in existing groups to warrant the new group. More on this later.

    Note: you cannot claim that you need a new group because there is no place on Usenet to discuss your topic. If that were true, no-one would be posting to Usenet on that topic, therefore there is no justification for creating the group!

    https://nylon.net/alt/

    6 votes
    1. [4]
      TaylorSwiftsPickles
      Link Parent
      In principle, yes, but I dislike the idea because of the human factor. I find ~electronics the best choice because the "seriousness" of calling something ~engineering.<something> can discourage...

      In principle, yes, but I dislike the idea because of the human factor.

      I find ~electronics the best choice because the "seriousness" of calling something ~engineering.<something> can discourage people for posting less professional content (e.g. hobbyists or otherwise amateur electronics enthusiasts). I think even professional engineers like myself can just feel like their post wouldn't "belong" there if it wasn't something "truly engineer-y enough". On the other hand, hobbies.electronics excludes the non-hobby/non-amateur posts by definition.

      7 votes
      1. [2]
        l_one
        Link Parent
        So I'm not the only one experiencing this. Thank you, sentient pile of pickles owned by Taylor Swift.

        I think even professional engineers like myself can just feel like their post wouldn't "belong" there if it wasn't something "truly engineer-y enough". On the other hand, hobbies.electronics excludes the non-hobby/non-amateur posts by definition.

        So I'm not the only one experiencing this. Thank you, sentient pile of pickles owned by Taylor Swift.

        6 votes
        1. TaylorSwiftsPickles
          Link Parent
          B̷̦͈͛e̵̳͋ ̶̬̖́̀n̷̢̖̾o̶̢̽́t̸̹̿ ̸͍̅͜͝ȃ̵͉̬f̷̦͛r̶̨̮͌ä̴̧̼́̑i̵̬͂ͅď̵̠͆,̸̝̇ ̷̗̻̀̉m̸͎̻͂ý̵͔͝ ̸͈̭̀c̵̢̟̑h̴̩͋͘ḭ̷͊͠l̴̢̯̂̋d̵̛̝̘̅.̸̙̒

          sentient pile of pickles owned by Taylor Swift.

          B̷̦͈͛e̵̳͋ ̶̬̖́̀n̷̢̖̾o̶̢̽́t̸̹̿ ̸͍̅͜͝ȃ̵͉̬f̷̦͛r̶̨̮͌ä̴̧̼́̑i̵̬͂ͅď̵̠͆,̸̝̇ ̷̗̻̀̉m̸͎̻͂ý̵͔͝ ̸͈̭̀c̵̢̟̑h̴̩͋͘ḭ̷͊͠l̴̢̯̂̋d̵̛̝̘̅.̸̙̒

          6 votes
      2. macleod
        Link Parent
        Yes. This is exactly why I feel it should be ~electronics

        Yes. This is exactly why I feel it should be ~electronics

        2 votes
  3. [10]
    l_one
    Link
    I've asked for something similar before and would absolutely love to have such a space where I feel comfortable just nerding out about electronics! Last time I brought it up it was shot down as...

    I've asked for something similar before and would absolutely love to have such a space where I feel comfortable just nerding out about electronics! Last time I brought it up it was shot down as redundant / I think I was told people could just bring up such topics in ~engineering or ~tech, but I've felt uncomfortable doing so.

    Maybe it's just my personal mental state / hangups / something, but I feel more comfortable initiating electronics discussion in a space specifically for it, where I know the people in that space are there for that specific subject and I'm not cluttering their space with unwanted / irrelevant topics to them (such as r/electronics back when I was active on Reddit before the great Enshittening) - without such a space here I find myself mostly just... not posting such topics 90+% of the time, feeling as though it would be inappropriate, no matter the 'just post it in location X'. I'm not sure how to explain it, what 'feels' perfectly acceptable to bring up in a space specifically for electronics - if I consider posting such a new topic for discussion in a general space it just feels like it would be unwelcome or inappropriate. Posting about 'I got this awesome eBay score on a multimeter!' or 'I had this major repair triumph!' just feels like it would be unwelcome and jarring in a general space, so I simply... don't.

    For reference, here is my home electronics lab and here is a recent triumph I had in repairing a 3458A I recently got for extremely cheap from a gentleman who saved it after a university told him to throw it in the trash. For reference for those who don't know about that instrument, the 3458A is the best metrology multimeter in the world and has been for the last 37 years, they cost $15-$25K new and even broken / scrap ones tend to go for no less than $3K on the secondary market.

    5 votes
    1. [2]
      WrathOfTheHydra
      Link Parent
      I do not miss working in a (mismanaged) repair shop. I do miss having a repair station with all my bippidy-bops on it. These days I have to scavenge through an old parts box for my spudgers....

      I do not miss working in a (mismanaged) repair shop.

      I do miss having a repair station with all my bippidy-bops on it. These days I have to scavenge through an old parts box for my spudgers. Wonderful setup you got there!

      4 votes
      1. l_one
        Link Parent
        Thank you. My home lab is my happy place.

        Thank you. My home lab is my happy place.

        2 votes
    2. [7]
      mordae
      Link Parent
      Wow, your lab sure is something else! I mean, are you an EE by trade? I am extremely happy myself because I have a 66 EUR bag of goodies en route from LCSC in anticipation of the end of year...

      Wow, your lab sure is something else! I mean, are you an EE by trade?

      I am extremely happy myself because I have a 66 EUR bag of goodies en route from LCSC in anticipation of the end of year vacation. Now I am not sure I can nerd out myself. I don't even own a scope. Ah-hah-hah.

      Anyway, did you know that you can build a crude but functional spectrum analyzer out of a balun, passives and RP2040? Here, let me show you. Also, the client app.

      3 votes
      1. [6]
        l_one
        Link Parent
        Ooh! Free online circuit simulator! Thank you kindly. I didn't know about that approach to making a spectrum analyzer, very cool! I have been into electronics since... elementary school? Bought...

        Ooh! Free online circuit simulator! Thank you kindly. I didn't know about that approach to making a spectrum analyzer, very cool!

        I have been into electronics since... elementary school? Bought broken electronics at garage sales and tore them apart, went from there. My job history has been a mix of IT and low-voltage tech contracting / telecom. In the past few years I have transitioned to buying/refurbishing/selling lab electronics on eBay and made that into my main income source.

        5 votes
        1. [5]
          mordae
          (edited )
          Link Parent
          Nah, it's not cool. It's extremely bad, actually. But it's also extremely cheap, which means it will likely be a part of my kids scope project for the electronics & programming club I'll be...

          I didn't know about that approach to making a spectrum analyzer, very cool!

          Nah, it's not cool. It's extremely bad, actually. But it's also extremely cheap, which means it will likely be a part of my kids scope project for the electronics & programming club I'll be opening in September. The goal is to stay below $10 per board so I can just hand them out and kids can keep them. But I want more capabilities than just plain MCU ADCs. This lets you see if your oscillator is actually working. Or check out harmonics of your R2R DAC. Using $1 MCU, way up there at 150 MHz. Mwahahahaha.

          In the past few years I have transitioned to buying/refurbishing/selling lab electronics on eBay and made that into my main income source.

          Wait? That's a viable source of income? That's actually incredible. Do people actually buy refurbished lab tech? I mean besides fellow TEAs?

          Ooh! Free online circuit simulator! Thank you kindly.

          Yeah, Falstad's circuitjs is pretty nice for quickly sketching out stuff. You can download it as an electron app, too.

          He also has an analog filter design tool running older codebase. It's super quick to throw together e.g. 4th order LC filter from actual part values.

          I've built RF filters by plugging NanoVNA to both ports, then checking my work as I go against the sim. In other words, connect what I currently have on the board in the sim and compare against what NanoVNA says. Then trim my inductors. On a single-sided 1.6mm FR-4 board, with some copper tape, DIY inductors, 1206 capacitors, a 7th order bandpass @ 169MHz with a notch at 94 MHz took me about two hours to build from scratch. Had about -1 dB insertion loss.

          3 votes
          1. [4]
            l_one
            Link Parent
            It is, and it's been pretty great in terms of not having a commute and being able to work whenever I want. Here's my storefront on eBay if you want to look around - I wouldn't normally plug myself...

            Wait? That's a viable source of income? That's actually incredible.

            It is, and it's been pretty great in terms of not having a commute and being able to work whenever I want. Here's my storefront on eBay if you want to look around - I wouldn't normally plug myself like this here on Tildes, but I suppose in the context of this specific conversation it is relevant.

            In other words, connect what I currently have on the board in the sim and compare against what NanoVNA says.

            The NanoVNA is awesome! I love their whole series of low cost / mini devices, it makes certain functionality so much more available to people, especially when traditional full-size instrumentation can be in the thousands of $. I've got the LiteVNA 64 version myself, as well as the TinySA Ultra and a HackRF, one of the Porta-Pack versions. The Flipper Zero is fun too, in terms of handheld RF capability, though it is very short-range.

            1 vote
            1. [2]
              mordae
              Link Parent
              I see. :-)

              I SHALL NOT BE LIMITED BY INCONSEQUENTIAL CONSIDERATIONS SUCH AS TIME BUDGETING OR FISCAL RESPONSIBILITY WHEN PURSUING MAXIMUM CUSTOMER SATISFACTION. ALL. CUSTOMERS. SHALL. BE. MAXIMALLY. SATISFIED.!!!

              I see. :-)

              1 vote
              1. l_one
                Link Parent
                Oh yeah, that one. The customer that was related to was particularly impressed with me making an hour long YouTube video detailing how to use the multimeter he bought from me. It may have been...

                Oh yeah, that one. The customer that was related to was particularly impressed with me making an hour long YouTube video detailing how to use the multimeter he bought from me.

                It may have been slightly over-the-top. Slightly.

                1 vote
            2. mordae
              Link Parent
              Definitely. It's incredible how much value can you get from such a simple device. Eeeeeh. I mean, those are not exactly in the same price range, ah-hah-hah. Also, Flipper is overpriced garbage....

              The NanoVNA is awesome! I love their whole series of low cost / mini devices, it makes certain functionality so much more available to people, especially when traditional full-size instrumentation can be in the thousands of $.

              Definitely. It's incredible how much value can you get from such a simple device.

              I've got the LiteVNA 64 version myself, as well as the TinySA Ultra and a HackRF, one of the Porta-Pack versions. The Flipper Zero is fun too, in terms of handheld RF capability, though it is very short-range.

              Eeeeeh. I mean, those are not exactly in the same price range, ah-hah-hah.

              Also, Flipper is overpriced garbage. CC1101 is not even $1. And they didn't even bother reading errata. Anyway, dirt-cheap sub-GHz SDR is on my TODO list, but first I'll need to get into FPGAs.

              1 vote
  4. [2]
    macleod
    Link
    If anyone is in the mood, please fix the title on this to remove the programming addition.

    If anyone is in the mood, please fix the title on this to remove the programming addition.

    3 votes