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Joined 3 years ago
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Cake day: June 12th, 2023

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  • Not in electronics. Wh is a pretty difficult metric in electronics design (and thus, speccing the time a battery will last).

    I have said this before because all ICs use mA as their power consumption rating because they might have a range of 1.8V-3.6V of operation or 4.5-10V or something and they consume about the same amount of current across that spectrum but vary in power. This is why low power systems often use 1.8V.

    Batteries also vary in delivered power at a constant load. They can pull 100mA continuously, but a lithium ion cell delivers 420mW first and then continually falls until it delivers only 250mW, almost half as much.

    What is easier to calculate?

    • Integrating across a variable voltage domain for the source and then subtracting each component uses variable power, then integrating each component over its voltage range. Oh and the battery capacity left in wh is also nonlinear, so when estimating state of charge, you have to balance a nonlinear source with a differently nonlinear load, integrated over time, all on a 200MHz mcu trying to do 50 other, more important things (and that’s fast)

    • battery can deliver this set current for this time, circuit pulls this amount of current, battery lasts X hours. Estimating life cheaply is just:

    “get starting SoC from memory and voltage” “measure current once” “measure current again” Current*time=mAh used. Save

    Again, not saying it is “correct”, but significantly easier on all levels.

    For the consumer. Why does it matter? There is absolutely no specs every given for actual power used. Does your phone use 1W or 5W or 100mW on average? Never given.

    Batteries are literally just “bigger = better”. Using Wh instead mAh would not change this at all. The only thing it would do is expose the 1% that try to fudge the numbers while everyone else just fudges power consumption.

    Oh you got X phone because Y phone only had a 13Wh battery instead of 18Wh. Oh too bad, phone X uses an average of 9W and only lasts for 2 hours. Phone Y used 0.5W.


  • I respectfully disagree. I understand what you are saying. But censorship and echo chambers on a platform level are a related, but different issue.

    I agree that Lemmy is very much anti-censorship.

    an environment in which somebody encounters only opinions and beliefs similar to their own, and does not have to consider alternatives

    However, echo chambers can exist with 0 platform censorship whatsoever. It doesn’t have to be the platform’s fault. If people only read and interact with communities who’s viewpoints confirm their own, that is a completely self-made echo chamber. Completely seperate than censorship and completely unrelated to the platform, but instead the people and community moderators.

    For example, hexbear users pretty much only interact with hexbear and .ml users (and often ban others). That is an echo chamber. The .world main communities ban people of both too far right and too far left so there is little interaction of those viewpoints with those communities. That is an echo chamber. The community of open source doesn’t ban many people, but the only people who go to that community are very positive about open source. That is an echo chamber.

    If you have a dozen rooms in the same building and you have 1 room that thinks the world is flat and the people don’t go into any other room, even though they have free and open access and can go to hear the opinions of the 11 other rooms, that room is an echo chamber



  • I mean, every community is an echo chamber, that is what online communities do and have done since the beginning of the internet. Hell, in-person meeting groups are echo chambers more often than not. If you go to an open source convention, the people there will probably echo your opinions on the topic.

    Lemmy is definitely an echo chamber in many different communities, I would venture to say most. If someone thinks left communities aren’t as much of an echo chamber as liberal or conservative, then they either haven’t spent enough time there or are lying to themselves just like the people that say “propaganda won’t work on me

    People gravitate towards people with the same views who confirm their worldview. Even if you discuss topics and have different views, you are still in a group with like 90% the same views. That is just how humans are unless one makes a conscious effort to go into hugely different groups like specific debate groups or something.


  • I used this back in the day after i left university with free MATLAB.

    Very functional, but struggled (8 years ago was the last I tried) with large datasets, especially variable exploring. It also was missing signal processing and filtering libraries back then.

    I had since switched to python with numpy, Pandas, scipy, and matplotlib and it is phenomenal.

    I would try it out because it has probably improved a ton, but Python is now available in excel (and it already was in libreoffice) for sharing scripts with people without python at work, so I don’t know if it is worth it lol.



  • Do you mind if I ask you a few questions about it? Especially on/e/? I think you are the first user I have seen.

    Does android auto work, connect fast, and have all of your enabled apps on it? My girlfriend’s maps app just doesn’t work in android auto sometimes and the same with Antennapod for me and we have to reconnect. That is quite an important one.

    How is battery life with screen off? On my xperia 5ii it has always been terrible with 1.5% per hour (accubattery) on WiFi or 3% per hour on 4G…

    Does your microphone work well in calls, recording, and on speaker? I have seen a ton of bug reports for that.

    Have you run into the common “terrible haptics/vibration” thing that people are saying with it barely being noticeable or not noticable in your pocket? I have heard that and that the haptics are really really bad in general.


  • I find it very confusing to get a good workflow with it + calibre.

    I sync all of my books (and use readarr for organization or occasionally grabbing books from dead authors) via syncthing. Then calibre web won’t ingest any new books I copy to the folder, so I have to go to desktop calibre to add them manually, then it will sync the database and calibre-web has a built-in task for scanning any database changes so then the book will show up.

    Seems like a clunky method and I would think I am doing it wrong, but I haven’t found a way for calibre to scan books already organized in folders in its book directory.


  • My girlfriend and I both need new phones from her failing and buggy Samsung A52 and my Xperia 5ii. We are not going Samsung anymore because they are putting unremovable Israeli spyware baked into their devices, fairphone 6 still seems very buggy and we had a friend with a fairphone 4 with 99 problems with it, and I don’t want to give google money and we want SD card slots instead of almost no memory to force cloud subscriptions.

    2027 is starting to be a big ask though.


  • Maybe not a good example because all TVs and Smart fridges run MCUs (or SBUs) that are 10x-20x more powerful than what is in any smart watch besides the apple watch (where the watch is mostly one gigantic custom IC).

    They usually run NXP I.MX Arm M7 processors at the bare bare bare minimum, much more common is an ARM A7 or higher which is a completely different world than the tiny nrf52840 with 192KB of RAM and 1MB of flash that is standard across lower-end smart watches (and doesn’t go upuch with higher end) That is why I was confused. But I guess people get down voted to hell for asking a question lol



  • Nah, it is pretty much if you didn’t buy one of 2 trendy models of the year, then nothing else has ever or will ever be supported (of course you can always write your own drivers but it is a ton of work, especially for non-coders)

    I have a thought that a lot of the enthusiasts that go through the pain and effoet of writing all of these drivers for old phones they have were usually the kind of people to buy the best/most popular device of the year



  • Times have changed. I used to be excited 10 years ago when new android versions came out with cool new features, often better performance, and a lot of gimmicks that sometimes were useful.

    Now it is: “Oh I wonder what feature they are taking away this time, what freedom they are stepping on now, what they have enshittified now, and how they are adding additional surveillance to sell to Palantir…”

    And what they advertise is literally “Location Indicator is slightly darker”. “Settings menu had very slight spacing change” and “brightness icon is mirrored”

    Somebody is getting a promotion for those extremely minor changes