• 3 Posts
  • 337 Comments
Joined 1 year ago
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Cake day: June 12th, 2023

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  • This is a good way to do it.

    I went one smaller with the Node 304 which only can do 4 HDDs with a GPU inserted. Going used for consumer desktop CPU is the most powerful play for the money I think.

    This is a good path forward OP for a pretty powerful server

    • Node 804
    • Used AM4 motherboard ( microatx B550) (can be around 150€)
    • used 5700X or similar (seen as low as 100€)
    • new 500W power supply
    • 32GB DDR4 3200 ram in 16GB sticks
    • WD red plus 10TB helium filled for balance of noise and performance and price. My 10TB drives are as quiet as my 4TB. My scheme is ZFS mirror of 4TB (2 drives) for important docs, and 10TB drives for non critical data. Drives are by far the most expensive unless you get good second hand drives
    • if you want to do Jellyfin media server, pick up an arc A310



  • In the professional space:

    Add Altium, KNX, pspice, LTSpice (luckily works in wine), and for us electronics/electric guys lol.

    Linux is a 3rd class citizen in ANSYS simulation tools. Slow updates, old UI, etc… On Linux. Pretty much only used as a simulation node for kicking on sims from windows since Linux machines can be >1TB RAM + 144± core powerhouses where windows sucks on those type of machines.

    Pretty much all architecture software

    Many ERP systems desktop apps

    Not to mention a lot of companies use active directory for access control + sharepoint

    Web apps suck, but have been very helpful in Linux compatibility in the enterprise space since the devs only have to care about 1 set of production builds.

    At my work, software guys and mechatronics PLC focused guys get away with Ubuntu (saleae is great), but for electronics and mechanicals it is not even worth it to dual boot.





  • Ah yes, the classic child-abuser-apologist line that every “christian” brings out when confronted about the abuse of their revered leaders that they absolutely refuse to condemn before they go back to church to give money directly to the abusers every week.

    Do you love Jesus or have convinced yourself that you love him because you are so afraid of hell? Very Stockholm syndrome-esque. Take kids during their developmental years and tell them that “people” go to hell and are tortured forever unless they love Jesus and follow sky-daddy’s rules (and by extension, the rules of the church). Then they are told that over and over until they are brought to a special ceremony to declare their love.

    Or I guess you have never once been to church and never a single time been told that people go to hell if they don’t love Jesus and accept him into their hearts? I guess you just read the entire bible without any external influence at all and converted after your brain was fully developed after 25 or so, again, with nobody telling you about it. But I guess when you lie, you can just ask Daddy for forgiveness and you get off with no consequences! Tons of harm, no foul.

    Either way, I guess I am glad because it is the only thing stopping you from rampaging around murdering, raping people and animals, stealing, torturing, maiming, abusing, and whatever else you apparently so strongly desire to do.


  • You said it right there in your comment.

    Sleep mode, (and other effectively off modes) where it is functionally useless, it can do.

    MSP430 can do 140uA/MHz. That is ~7 times the power that this application supplies, and that is not counting any single other chip quiescent current or chip that actively provides useful data. You would have to have a battery anyway or a big cap to provide the needed current for on-states. Or you could run it extremely low frequencies like you said, but those tend to not scale linearly at all with per MHz power ratings. Quiescent currents tend to catch up fast at that scale. I would be extremely doubtful that 150kHz would scale perfectly and wouldn’t have already exponentially decayed to around its lowest possible on-state consumption for the chip. I would definitely have to see tests on that.

    The smallest of batteries like the VARTA tiny cells in TWS’s are infinitely more useful and practical and it would take this application months to fill a single cell, discounting all losses.



  • It is the Mac of network hardware in my corporate - entered experience.

    It is aesthetic hardware, marketing, and everything software related looks polished on the surface, but is buggy (particularly their access which is the worst thing to be buggy) with the least possible configurability, completely obscured debugging resources, and proprietary ways to make you reliant on their support services.

    That being said, I am still using them because I got a 30€ UAP-AC-SHD from my company’s old stock when we switched to Cisco hardware. And their cloud gateway ultra is a good value. My whole house setup with prosumer hardware will be 140€ and where my internet comes in is the worst place in the house to put a wireless router.



  • I don’t think people realize how extremely little 50uW is.

    For a standard 3.3V microcontroller assuming a 95% efficient voltage regulator will be a current of 14.4uA. Just having the HSI master clock enabled on one of the low power STML0 chips is 15uA. This will literally only the clock. That is 0 sensors, 0 communication, 0 IO, nothing useful at all. For reference, reading SPO2 with a very efficient maxm86161 takes 10uA by itself in ultra low power mode with low accuracy and not counting the max leakage current of 1uA. For full operation, you need about 1000x-10000x that amount for short bursts.

    “Oh but it can cHaRgE tHe BaTtErY”

    Let’s say the device has a standard 100mAh battery (apple watch had a 228mAh or more). At 100% efficiency with absolutely not one millijoule being used by any other electronics (which would never ever happen, it would at the very least need a boost converter), it would take around 277 days to charge up that tiny tiny battery.

    Let’s take another example of an even smaller battery. To charge one side of the airpods 3rd gen (0.133Wh battery), it would take 110 days per ear

    This is one of those free “energy harvesting” fad BS based in nothing but wishing and marketing. It is an interesting learning project for wireless antenna beginners, but that is the extent.



  • While true, in order to get Linux mobile more mainstream, you have to have great google compatibility just because of the sheer volume of people that have to use google calendar for sync with family and friends and/or have gmail as a primary email. That’s just a shitty fact of life. Baby steps.

    However, indeed you are completely right that at the current time there are probably a very low amount of people wanting to use it right now that are completely reliant on google.


  • In Europe:

    gazelle is solid, but just okay for the price. They generally have very bad shock absorbtion in my testing. Many of them have a fork with no shocks making for an extremely jarring ride because ebikes are heavy.

    Norta for great bang for your buck

    Flyer for a bit more expensive but very good quality

    Riese & muller for when you just have way too much money to spend.

    Stromer for speed pedelecs (45kmph vs the normal 26kmph)

    Then there are a ton of bikes with the standard Bosche Active Plus (performance is better), 500Wh battery (625Wh power tube is best). They are probably all fine, but use the same parts in general with just a different frame.

    Belt driven instead of a chain if you want extremely low maintenance. The cost of a belt replacement is approximately 3x a new chain and the chain has to be replaced 3x as often, so it comes out about the same.


  • ~/workspace/git

    That way I can also keep other stuff in the same “workspace” directory and keep everything else clean

    I have a Code, simulations, ECAD, and FreeCAD folder in the workspace folder where projects or 1-offs are stored and when I want to bring them to git, I copy them over, play around in the project folders again, then copy changes over when I am ready to commit.

    I could better use branching and checking out in git, but large mechanical assemblies work badly on git.


  • KDE for my main PC. Pretty with floating panels, KDE Connect, QT apps are often the best apps in their class and are perfectly integrated (FreeCAD, krita, okular, kdenlive, vlc, dolphin, etc…) And konsole is also very full featured.

    I don’t know what KiCAD uses, but it also seems very well integrated into the KDE desktop unlike most gnome apps.

    XFCE on MX Linux for an old Intel Compute Stick to keep it very usable.