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Joined 2 years ago
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Cake day: June 12th, 2023

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  • I own this. It is horrible. If the specs were real it would be great, but the specs are not real. It is a 3k black and white monitor with a fixed color filter over it. That means you need 3x3 pixels to resemble a color.

    I consider it a scam from Dasung.

    Boox on the other hand made a sane black and white display. Much better. I own a Max 2 Pro. Sadly they fail to understand that when you report a display as 20px smaller than it really is over an HDMI port and then rescale the image of the computer display on that, that it becomes really uncrisp. Their suggestion is to use the display with 200% scaling (so you don’t notice as much I suppose).

    Epaper is really promising and nice. However both of these companies should either get some real competition or lawsuits.






  • There is a standard connector which existed before big screens landed in cars, the OBD2 connector. Dongles are cheap and you can read the output from your phone or computer. Some dongles support bluetooth. The connector is mandated in some markets and I guess that makes it less interesting to add a redundant interface inside of the car. It’s fun to try if you’re interested. Manufacturers can extend the error codes IIRC.

    Tesla has a service mode on the display through which you can scan the car for faults, run a battery test, … It is password protected but the password is publicly available.







  • Looks good to me.

    docker-ember largely automates such a setup with specific mounts for linking node modules from other folders, being able to bind to localhost for when you run the backend on your own machine, and exposing ports for livereload. May include other secret sauce. Some of that is closely tied to EmberJS.

    I’m a fan of using tools you understand. What you show here is comprehensible and sufficient for now👌


  • Battery temperature management seems to be a key limiting factor.

    At least a few years ago, and likely still, the reasons and conditions under which the barrier layers in the battery degrade were not super well understood. Heat seems to be a key contributing factor and charging a battery quickly warms up the battery and I suppose not fully evenly within a cell. Not knowing the complete extent of this makes the early LEAF’s lack of actively cooled battery a reasonable choice. Before that, the batteries of earliest Prius cars held up way longer than expected.

    Like with a phone: heat and cold is not super awesome for the battery. It seems heat is especially bad for longevity.


  • I don’t think Xerox invented the computer mouse. It was first drawn out by Douglass Engelbart and presented to the public in the 1968 presentation “Augmenting the Human Intellect” (you can watch it on the present day, it was recorded).

    It was my understanding (which I did not verify) that this was picked up by Xerox and others and that windowing systems evolved from there on with Xerox leading towards Desktop Publishing.




  • You shouldn’t eat candy given to you by strangers. If you’re in a large group and someone knows the candy, maybe. Code is food for your computer. Be wary. Our large Open Source group of friends has learned about many kinds of candy and shouts loudly when some in the group becomes ill. You don’t want to become ill. Some risk exists, but with a large group it is generally ok. Don’t install packages as root, don’t install what you don’t need.

    I run my frontend builds through Docker (also during development). By isolating access to the host system to the files/folders necessary for development I’ve shielded off the majority of current realistic attacks I’ve seen as NPM based exploits. I’m certain the approach can be replicated for other frameworks, but we use Ember and docker-ember. I doubt it runs as smoothly on a non-Linux OS.