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Hey 👋 I’m Lemann: mark II

I like tech, bicycles, and nature.

Otherwise known as; @lemann@lemmy.one and @lemann@lemmy.world

Dancing Parrot wearing sunglasses

  • 3 Posts
  • 126 Comments
Joined 9 months ago
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Cake day: December 22nd, 2023

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  • AFAIK on Windows the physical disk containing the partition needs to be marked offline in Disk Management, and the disk or a partition given exclusively to VirtualBox running as administrator, otherwise access is limited to read-only

    I would suggest checking some other sources as well, just in case this has changed over the years. If you do successfully pass the physical partition into VirtualBox read-write, you might need to set up a virtual disk with grub to boot into your physical Linux partition



  • A while back I made a Lolin32-based weather station that lasts for around 60 days on a single disposable vape battery.

    It wakes up every 15 mins, and while it’s connecting to WiFi it retrieves the AM2302 sensor readings. As soon as they’re transmitted it goes back to sleep.

    I wish there was a more power efficient alternative though, like whatever is being used in those BLE LYWSD03MMC sensors that last for around 3-6 months on a cr2032 whilst also having a display built in



  • To answer the direct question - no

    I do have some thoughts on moving away from the Pi though - warning, heavy personal bias ahead

    If you’re looking at moving away from the Pi I would just suggest a low power x86 box, like a Nuc or some Intel N100 low-power tiny PC.

    There is a caveat though - it looks like the OctoPi project only provides OS builds for the Pi, so if you change systems it looks like you’ll need to install OctoPrint manually, and port over your config somehow.

    On ebay you can get second-hand NUCs, 6th gen and up, for practically peanuts. The cheaper quad core celeron nucs (i.e. J3455) are roughly equivalent to the 3rd and 4th gen dual-core i5s (3777u, 3230m etc) performance wise, but have an updated QuickSync encoder and support accelerated 4K video encoding/playback, handy if you want to capture timelapses of your prints or just view them live. They also consume 1/3rd of the power at around 10 watts under the same workload.

    ARM support for other vendors can be pretty flaky, sometimes even non existent. While you could pick an Orange Pi, and go with a modern community-supported distro like Armbian, it isn’t a turnkey experience like the Pi. There is much less documentation, and still some very early boards floating around with hardware defects and overheating issues (posing a fire risk in the worst case, the OPi Zero being the most egregious - literally melting the optional enclosure and killing the NIC). Some research before buying will let you know most of what you need to know - check around the forums for any common issues and dealbreakers, as well as the manufacturer’s site to get an idea of available support.

    If you want to get an idea of the alternatives you could check out Jeff Geerling’s youtube channel, he covers the Pi and occasionally videos on other alternatives, as well as issues he’s had with them and support. I’ll try and link some below…

    https://www.youtube.com/watch?v=KghZIgkKZcs

    Check the comments on that one for a quick synopsis, as the video is quite long…

    https://www.youtube.com/watch?v=jjzvh-bfV-E

    This video pretty much just echoes my current perspective


  • To combine a bunch of explanations I’ve seen in the comments here:

    A bourgeois philanthropist game show producer who dabbles in poverty porn.

    That said, I do occasionally burn time watching some of his videos, however some of the content (especially the more recent game show ones which feel a bit like toying with people) rub me the wrong way.

    I have no idea if his philanthropy efforts are genuine or not - he’s barely visible in those videos (he has another individual hosting those videos) although I do appreciate the efforts they appear to go to when assisting communities desperately in need, and careful implementation of solutions that are sustainable, and can actually be maintained and fixed with local knowledge.

    I’ve seen way too many “gimmicky” charity contributions by other organizations that become worthless as soon as they break because nobody fixes them, as well as other solutions that seemingly make sense from a western cultural lens but aren’t really understood by the local people… worst one being a “merry-go-round” water pump mechanism where senior locals are forced to “play” just to pump water for survival. It was originally intended as a kids toy, but they of course don’t have any attachment to such a foreign device, thus don’t use it.

    Ehhh apologies for the mini rant there 😅





  • Retraction settings are probably your best bet then. Since the SV06 doesn’t use a bowden extruder, there’s much less things that could be the issue in your scenario thankfully

    To be specific about my “workaround”, it compensates for a non-flat build plate (ramped lift) and a cheap nozzle that filament often sticks to (wipe on retract). It took me two days of test prints and research to narrow those down though…

    To get to the bottom of your issue quickly, you could try tuning your retraction using a retraction test, then possibly try recording the nozzle printing the same test at 60/120fps, to play it back in slow motion. This way you can see at what part of the nozzle movement the stringing starts, and change any relevant settings accordingly




  • This looks like one of those low cost netbooks from the time where “EPad” and “MID” tablets were a thing. There is an edition of Windows CE floating around for these - but WiFi will not work, neither the modem if this has one built in.

    No idea about Linux - there is a kernel so you’re technically half way there, but considering most of these had a slow single core ARM CPU and 256MB of RAM on a good day, practical use is limited IMO


  • ASMedia is the only controller IC manufacturer that can be trusted for these IME. They also have the best Linux support compared to the other options and support pass-through commands. These are commonly found in USB DAS enclosures, and a very small fraction of single disk SATA enclosures

    Innostor controllers max out at SATA 2 and lock up when you issue pass-through commands (e.g. to read SMART data). These also return an incorrect serial number. These are commonly found in ultra cheap desktop hard drive docks, and 40pin IDE/44pin IDE/SATA to USB converters

    JMicron controllers (not affiliated with the reputable Micron) should be avoided unless you know what you are doing… UASP is flaky, and there are hacky kernel boot time parameters required to get these working on Raspberry Pi boards. Unfortunately these are the most popular ones on the market due to very low cost