jesse9766
Joined 10 years ago
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15
Submissions
11
Member since
Jun 27
Recent submissions
Comment · 1 year ago
Comment · 2 years ago
Or, at the rate of $0.30/kWh in California for residential use, $2.70/year. Lowering power usage on embedded devices is important when you're producing thousands, but for a hobbyist it doesn't really matter.
Comment · 2 years ago
To anyone that is looking to buy an Onyx Box, do note that they blatantly violate GPL by refusing to release their source code.
https://news.ycombinator.com/item?id=23735962
I've been using the Onyx Boox Max 2 for a couple years and it's a pretty good device. When I purchased it they stated they would update the Android version, but they never did so it's stuck on Android 6. For reading PDFs it's good and there aren't really any competitors with this large of a screen. I'll often read books in dual page format, or read manuals in single page.
The device crashes frequently if you try to use any third party apps, and the pen has major lag if you're not using their notes app. Don't turn on the wifi or else the battery drains extremely fast. Make sure you don't leave it charged overnight or else the battery might balloon and explode. When this happened Onyx replaced my battery for free.
Despite these shortcomings, it's still better than the Sony digital paper (which I've also used and sold). The pen is pressure sensitive, which isn't in the Sony. The writing experience is worse than on the Remarkable, but Onyx has a bigger screen.
I'd recommend Remarkable if the screen size is good for you. The software is a lot more stable and the device is a lot more polished in general.
Comment · 2 years ago
I've also used the Raspberry Pi + Coral TPU. For a while it was almost impossible to get the USB as it was always out of stock, but those issues seem to be gone. I would not, however, recommend the devboard as the documentation is quite sparse (runs on an NXP processor). RPi+Coral is a good combo, and the Pi5 supports the PCIe accelerators.
The BeagleBoard BeagleY-AI that was just released costs $70 at 4TOPS, equal to the Coral which is $60 for the USB alone disregarding the cost of a Pi [2]. It just came out, but BeagleBoards have quite a good community reputation and because the hardware is more open, easier to develop into a commercial product. The older BeagleBone AI-64 has a processor that supports 8TOPs, and TI has processors that go up to 32TOPs if you have the skills to create your own board (I don't).
I would not recommend developing with the NVIDIA Jetson unless you have particularly deep pockets and like to use an out-of-date toolchain. The latter isn't too unfamiliar to the embedded world though.
[1] https://pineberrypi.com/products/hat-ai-for-raspberry-pi-5 [2] https://www.beagleboard.org/boards/beagley-ai
Comment · 2 years ago
Hard links only work in the same filesystem. If your system only has one volume with one filesystem (e.g. a PC) that's fine, but not a very portable option for servers.
Comment · 2 years ago
Certainly doesn't help that the standard is closed source and only available to industry members.
Comment · 2 years ago
Latency is an issue even inside a transistor itself, something known as propagation delay. When you have a bunch of logic gates chained together the propagation delay increases and the chance for a race condition occurring also increases. The propagation delay of a logic gate is one of the limiting factors of the speed of a circuit.
Transistor gates act as capacitors in a way. This capacitance increases the delay between switching on/off. [1]
To lower this delay, we can shorten the transistor gate. We've hit a wall with how small we can shorten this length, and it is exceedingly difficult to make smaller gates without running into quantum effects.
Higher electron mobility means that the delay inside the gate is reduced, allowing faster circuits.
[1]http://ece-research.unm.edu/jimp/vlsi/slides/chap4_1.html Switching speed of MOS systems strongly dependent [on]: Parasitic capacitances associated with the MOS transistor. Interconnect capacitance of "wires". Resistance of transistors and wires.
Comment · 2 years ago
We'll (and humanity itself) be long dead by then
Comment · 3 years ago
Converting magnetic force into electrical current (electromagnetic induction) is the principal behind of all electrical power generation. SMES (superconducting magnetic electrical storage) is essentially an inductor made using superconductors. Electrical current gets converted into magnetic force and then back into electrical current when the circuit is discharged.
Comment · 6 years ago
I haven't done a test yet, but the Fluent Terminal seems fast enough and doesn't eat up that many resources surprisingly. As a UWP program it feels very snappy (as opposed to Hyper being a full on electron app using 200MB for simple text output!) I don't care what technologies they use to build a program, as long as it works. I haven't experienced any hangups using SSH, so it's good enough for me.
Comment · 6 years ago
Have you tried using Fluent Terminal? It is available on github and the Windows Store. To use mosh you need to connect via the quick connect menu in the top left corner of the program.
There seems to be a model of the ASML TWINSCAN NXE3400C which shows the inner workings, but doesn't show on the ASML site. Would be neat if someone could track down the build instructions.
https://asmlstore.com/collections/ready-to-ship/products/twi...
There is another set available on their site.