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Cake day: August 24th, 2024

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  • While I have a personal general rule against backing electronics on Kickstarter and would likely wait for it to be available at retail, I wouldn’t necessarily immediately discount this one.

    It’s probably worth noting - mentioned in Jeff Geerling’s video - they had a MOQ of 1500 on the metal case, which likely forced them to be significantly further through the process than a lot of Kickstarters are at launch.





  • Surprisingly, no.

    I’ve got both the first-gen Palma, and a Kindle Oasis (2017).

    Ignoring anything that’s purely a function of the Palma being significantly newer - has a cool-warm light while that model of Kindle is one colour temperature only, and that it has a faster-refreshing e-ink display, etc - it’s still often a more pleasant experience.

    The Palma is a little heavier (especially vs the Kindle without its case, which is typically how I use it), but because it’s narrower much easier to hold. The Oasis does have the physical page turn buttons, but I never found them to be particularly well placed, always required holding it a bit awkwardly.

    It’s mildly painful for content that doesn’t reflow (like PDFs) due to the phone-like 16:9 aspect, but imho for e-books is the superior experience.


  • Putting a solar roofs over any open-air carpark you happen to own is just a hilariously easier option. Hell, you could erect these OVER the train tracks.

    https://greenox-group.de/photovoltaik-carport/ (Article is in German, but it’s really more around the picture)

    According to a completely un-sourced picture I found online, one carpark (in the USA) is typically around 5.5 x 2.6m, so if you had even 50 carparks on your site you could have ~715 square metres of panels. More, if you figure a way to cover the aisles between the rows of carparks too.

    At the top end of all applicable figures (panel efficiency, solar irradiance, inverter efficiency), that could net you ~160kW at solar midday.

    Now on the other side, standard-gauge railway is around 1.4m wide, and maybe you could cram a 1m width of panels between the rails.

    That sounds like a lot - 1000 square metres per kilometre, and there are thousands of kilometres of railway lines out there - but it’s harder to install, harder to service, gets dirty faster, is liable to get damaged, and now you have to figure out how to extract power from somehing a kilometre long, instead of an area that could be a square only around 35m (~115’) on a side (for the above 50 carparks).

    I know which one of those I’d want to run the cables for.

    As has been pointed out many times when this dumb-ass idea comes up, only once you’ve exhausted every other possibility (carparks, rooftops, putting panels ABOVE roads/rivers/canals/cycleways/railways) and have literally no other viable installation locations, then we can talk.






  • it’s essentially 2 PCI Express x1 lanes and USB 2.0

    Sometimes there’s only a single PCIe lane though. And as you say, that’s not a x2 but explicitly two x1s.

    No WiFi card needs the bandwidth (yet), at PCIe 3 speeds you’ve got around 7.8Gbps for a x1, and PCIe 4 double that.

    The Coral comes in a “dual” version for exactly this reason (https://coral.ai/products/m2-accelerator-dual-edgetpu/) you just have to be very sure the slot you’re putting it in is actually delivering two PCIe connections.

    Also for bonus fun, most WiFi/BT cards use the PCIe interface for the WiFi and USB for the Bluetooth.