triactual

6 ms·

1.
by triactual 2mo ago
I have seen this play out with host devices with robust current limiting outputs. Sometimes it works for the connected device and sometimes the device sabotages itself when its own regulator turns on at say 3.6 V, drawing down the partially
2.
by triactual 2mo ago
You need a soft-start circuit between the USB connector and your big cap. When you first connect the USB device, the cap has no charge (0V) so it appears as a short to ground to the host 5V supply. The result is a large current spike which
3.
by triactual 1y ago
The surface tension of the solder will pull them into alignment if the pad shape and solder volume are correct.
4.
by triactual 1y ago
If you read the article, you will see that the technology is specifically semiconductor design tools required for developing high performance computing that the PRC would use for nuclear weapons development. Can you do that with KiCAD? No.
5.
by triactual 2y ago
Weren’t the Intel CPUs made in the US?
6.
by triactual 2y ago
It would be for indefensible decapitation strikes. A world leader who would launch a surprise first strike is almost certainly narcissistic enough to be susceptible to blackmail by a threat on their own life. A world leader who is not conce
7.
by triactual 3y ago
The isotopic content of the water matters too. Boiling point are not used to calibrate thermometers though. Freeze points and triple points are used for temperature calibration. And outside of a primary standards lab, it’s usually just a tr
8.
by triactual 4y ago
Sorry, I think I misunderstood your original comment - we’re having the same thought with MITM. Definitely more technically challenging but much harder to detect.
9.
by triactual 4y ago
My point is that no matter what you tell the OS, there will still be one more device connected than expected. If you plug in a keyboard and two are suddenly connected, it’s still very noticeable. This counting problem is occurring at the ha
10.
by triactual 4y ago
Yeah, this is more of a UI problem that could be solved with a little effort. I would be concerned about a device that replaced the hub itself rather than simply adding a function. The core issue is that a system can always notify the user
11.
by triactual 4y ago
Maybe I’m missing something but these USB attacks require interaction with kernel drivers so if you plug in a dock that then presents mysterious storage or HID functions, you’re going to know.
12.
by triactual 4y ago
They all leverage the masses. That’s the whole point. Otherwise it’s just a coup.
13.
by triactual 4y ago
No, you are exactly backwards. Did the People’s Revolution win or did the students win? I seem to remember that the students were run over by tanks. Probably not being driven by highly educated PLA commanders.
14.
by triactual 4y ago
With ST, specifically, I'm not seeing a lack of Silicon but a lack of lead frames. The recent shutdowns in China caused several batches of lead frames to expire unused, creating a big gap moving through the supply chain. Chip-scale pac
15.
by triactual 4y ago
What really kills me is that none of the complainers have any experience designing consumer hardware let alone running a business that sells those designs. Owning lots of hardware whose design is beyond your ken is not the same thing as des
16.
by triactual 4y ago
It’s genuinely terrifying. There seems to be no recognition that you cannot have labor unions and environmental protections with out tariffs to even the playing field with less scrupulous countries. We are rapidly approaching a time where o
17.
by triactual 4y ago
This is pure fantasy. Minimum wage in the US is 2-10x what it is in low cost regions. Not even touching regulations. US experts travel to those regions to hand-hold every step necessary in order to make any product not forced to be built in
18.
by triactual 4y ago
Not flame proof though. You don’t want to put flammable things in something like a computer case that will be running unattended. I get that people do this stuff all the time with no issue. Just know the risks before taking them.
19.
by triactual 4y ago
UL94-V0 polycarbonate sheet or fish paper. Heatsink could easily get over the glass temp of common 3D printing materials like PLA or PETG.
20.
by triactual 4y ago
Previous comment means materialism as defined in philosophy. Not materialistic.
21.
by triactual 5y ago
If it’s an IC engine, the convection heating is waste heat from the engine. So the electric heaters in the wheel and seats are massively less efficient.
22.
by triactual 5y ago
If Apple doesn’t know, how does the user know? I thought Apple was just anonymizing but still centralizing the data. Genuine question.
23.
by triactual 5y ago
This is racial discrimination for the Right Reasons, apparently. As long as everyone agrees on when we can and cannot discriminate by race, it should go very well.
24.
by triactual 5y ago
Why are you so rude? I am a hardware engineer and I’m explaining how you establish trust with hardware devices. This information isn’t contained in a single data sheet, it spans an entire global supply chain. A SIM card is just one way to d
25.
by triactual 5y ago
What if I buy one real device and clone the serial number? This has been solved more than a decade ago but it requires hardware with secure storage to maintain a private key. Some centralized service holds the public key and can verify the
26.
by triactual 5y ago
There are some pretty simple hardware mitigations that would render this and similar attacks nearly impossible and they only add pennies to the design.
27.
by triactual 5y ago
There never has been middle ground. Why do you think the ACLU defended KKK members.
28.
by triactual 5y ago
It feels like there’s enough interest in these comments to make it happen with some organization.
29.
by triactual 5y ago
Great, so maybe it's time to revise the rest of the thinking as well.
30.
by triactual 5y ago
Yes, but they really only work on civilian targets because military hardware is EMP hardened and has been since a few weeks after the advent of nuclear weapons. The scary stuff is electronic warfare where you instruments seem to be working

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