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/tech/ - Technology

"Technology reveals the active relation of man to nature" - Karl Marx
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File: 1765268917942-0.jpg (123.56 KB, 960x761, ESP32-S3-ETH-details-1.jpg)

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The people's microcontroller. Dev boards can go for pretty cheap, especially on AliExpress.
https://idf.espressif.com/
https://docs.espressif.com/projects/rust/book/preface.html
https://docs.espressif.com/projects/arduino-esp32/en/latest/getting_started.html (Arduino IDE package info, probably better for beginners)
https://www.instructables.com/search/?q=esp32&projects=featured

I've been thinking of creating wagging cat ears with a couple of servo motors

File: 1765296894837.pdf (16.82 MB, 197x255, The Art of Electronics -- ….pdf)

Short, practical tutorial videos:
https://www.youtube.com/playlist?list=PLah6faXAgguOeMUIxS22ZU4w5nDvCl5gs
In-depth videos on electronic engineering theory:
https://www.youtube.com/playlist?list=PL0o_zxa4K1BV9E-N8tSExU1djL6slnjbL
Schematic/PCB editor software:
https://www.kicad.org/
https://www.tinkercad.com/
Embedrel is a textbook on electronic theory. It's long, but written for beginners and you don't have to read everything.

https://esp32io.com/esp32-tutorials

Had an idea for a noise gizmo project. Basically a "gieger counter" that counts Bluetooth and/or wifi packets. Any ideas how hard this would be to set up? I've never done any microcontroller stuff before.

>>32010
Setting the board's wifi to promiscuous mode helps turn it into a sniffer, I guess
This might be a useful read https://hackmag.com/security/esp32-sniffer-2

>>32014
I think I'll have to step by step work up to my project.


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I’ve royally fucked up lefty tech comrades, i accidentally spilled water over the keyboard of my old macbook… and it powered off almost instantly.

Dried it off, unplugged it and it’s now sitting upside down next to a dehumidifier… is there any chance it’ll survive?

If not, can you guys recommend me and good laptops i could get second hand? (I need one for uni). Ideally one that can run some variation of linux (no clue how linux works but i don’t want to use windows and can’t afford another macbook)
13 posts and 1 image reply omitted.

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>>32002
Amerikkkans installing reverse osmosis filters, centrifugals and distillation plants so they can drink tap
water (that turns the freaking frogs gay)

IT JUST TURNED BACK ON!!!!

It’s a little slow though…

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File: 1766539978014-1.jpeg (6.25 MB, 4032x3024, IMG_4401.jpeg)

Any advice on dealing with this? Don’t want to spend too much on repairs

>>32012
Battery is clearly charging, idk why it says that

Gonna unplug it anyway and leave it for a while

>>32012
Ah that means the battery is probs what got wet then. I'd say just keep it plugged in.


 

i didnt know flock's falcon cameras literally zoomed into you and into your phone automatically, that's so fucking insane.

body was too short or empty body was too short or empty shawty body was too hot or something

This is borderline and possibly actual creepshot territory.

>>31992
>This is borderline and possibly actual creepshot territory.
The only thing that will turn public opinion against mass surveillance is using it to creep on women. Gooners rise up for the good of society.


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How do I start enjoying programming again? I used to love to do that shit before I actually started working as one.
5 posts omitted.

>>31973
I really have been pondering this contradiction with people saying to their kids "do what you love". Then those kids go with their passions and turning those passions into careers and later hating their work, their past passion and even themselves, just like their parents. Not that every job is misery or people can't do things that are their job or adjacent to it as hobby. The thing is that whole thing with choosing a career path is a scam. Kids and young people know jack shit about work or their field they get themselves into, or if they can get employment at the field all. Nor do people especially at those ages really grasp the difference between just doing something as hobby and working in an industry.

>>32004
“You can work by doing what you love!” is one of various promises about the ‘freedom’ capitalism provides that serves to direct blame towards the worker for their lot in life. McDonald’s workers can’t really complain about the low pay, the low respect and the monotony because they COULD have done something they loved instead!

>>31987
How to do recreational programming?

>>32006
>How to do recreational programming?
You do projects that you like, that let you be creative? Things that interest or benefit you personally. Doing projects that you wouldn't usually get to do or don't make sense to do in the corporate world, or use languages, paradigms, tools that you normally wouldn't use.

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>32005
>“You can work by doing what you love!” is one of various promises about the ‘freedom’ capitalism provides that serves to direct blame towards the worker for their lot in life
Except this is actually true for whatever percent of STEMoids were computer addicted kids. That percentage dropped a lot in the late 2000s as developer and IT appreciated in social status and value, but it's still not insignificant. STEMoids are the whiniest bitches. Wahhh I'm so burnt out doing something easy that I loved doing as a child. Grow the fuck up. I have a cushy job in an interesting domain where I get to work from home and am treated with trust and dignity. That FAR outweighs the joy I lost solving retarded little coding challenges like I did back in high school.

t. gave up on advent of code this year with no regrets


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In recent years China has made significant strides in developing its own semiconductor industry with things like Huawei's HiSilicon, Loongson, StarFive, MilkV, etc. I would call that China outlasted the US sanctions barrage from the US. Chinese investment in fabrication technologies, while not anyway near cutting edge is getting to be near good enough. With things like Intel looking shaky and the rise of Risc-V and ARM we are steadily moving forwards towards the hopeful future of open standards, hardware and software, where most consumer computation devices will have built in Chinese backdoors instead of American ones.

>Chinese schools testing 10,000 locally made RISC-V-ish PCs
https://www.theregister.com/2024/04/05/china_schools_riscv_pc/

>Beijing issues list of approved CPUs – with no Intel or AMD
>2024 may be the year of Linux On The Arm-or-RISC-desktop as China moves away from Western tech
https://www.theregister.com/2024/03/25/china_approved_tech_list/

>China Is All In on a RISC-V Future
https://www.hpcwire.com/2024/01/08/china-is-all-in-on-a-risc-v-future/

>'The Linux of processors' — New breed of Chinese super CPUs emerge on US soil as universities back open source high performance RISC-V processors to be the next big thing in HPC
https://www.techradar.com/pro/the-linux-of-processors-new-breed-of-chinese-super-cpus-emerge-on-us-soil-as-chinese-universities-back-open-source-high-performance-risc-v-processors-to-be-the-next-big-thing-in-hpc

Post too long. Click here to view the full text.
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>>28665
Maybe if were to assume that the end goal is desktop-class R-V CPUs, whereas the more likely goal is having something between an FPGA and an off the shelf ARM SoC as a middle ground for custom chips controlling all the various IoT devices, drones, autonomous systems, etc that China actually produces

Why do you need a list of approved CPUs?

I work at a hardware company. one year ago we were talking about partnering with Chinese companies, now red scare is in full effect and my boss tols me npt to go to china "because they'll detain u" jokes on him I'll go anyway and just not mention it.

>Huawei Technologies has applied for a patent in “ternary logic”, an alternative to binary computing logic first explored in the former Soviet Union, in hopes that it could improve the design of artificial intelligence (AI) chips and help mitigate the impact of US sanctions

>The approach could be used to reduce the number of transistors on a chip and therefore reduce energy consumption, according to the patent application, which comes at a time when advanced chip designs at the 2-nanometre level are approaching physical limits.

https://www.scmp.com/tech/big-tech/article/3305201/tech-war-huaweis-ternary-logic-patent-could-solve-problem-power-hungry-ai-chips

They got through the noise problem. A step towards bridging the digital and analog.

What's even wilder is that HarmonyOS has apparently had a ternary logic support for years.

>>30759
>>31394
I wonder how well ternary computing and optical computing complement each other. Both might as well be meaningless buzzwords to me, but those seem to be the least meme tier future paradigms in how we do computing in the future apart from just binary silicon semiconductors.


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What do you think about it? On its face it seems like a straightforward improvement over C/C++ and a good way to modernize development in their typical niches.
On the other hand there is this really weird cultish behavior around it that just makes me feel suspicious. "Let's rewrite everything in Rust", forcing it into existing software without a clear use case other than just "it's better", overstating the language's capabilities and robustness, very much a kind of "toxic positivity" around it as in the whole Linux Kernel shitshow earlier this year, and the fact that it's being pushed by corpos and the US government. It all feels very weird.
73 posts omitted.

https://wiki.alopex.li/LetsBeRealAboutDependencies

>>31974
>Massive dependency chains (hello supply chain attacks)
>Painful and unergonomic C-ABI interop
these two don't compute. if you want c interop then you are most probably trying to link against system libraries, which implies an unknowable dependency tree. so you don't actually care about supply chain attacks

>>31995
System libraries have far more eyes on them than random crates, and are more difficult to compromise because the packages go through review on any sane distro. Downloading and linking a random C library exposes you to a single point of failure that is somewhat mitigated by using a tagged older release. A real world supply chain attack on a NPM/cargo style package manager can propagate itself automatically by stealing dev's credentials looking to infect the most widely deployed packages it can. When every little thing pulls in the latest releases of a dozen convenience libraries the risks and frustrations start to add up.

>>31993
tl;dr I trust system package maintainers more than random crate authors and you can't think for yourself trying to own me with linkspam written by evangelists less retarded than yourself

>>31976
Also forgot
>No standard
>One reference implementation

>>31993
I compiled typst and it pulled ~800 (!) dependencies, and they have implemented a lot of things from scratch
800 dep cli program vs 200 dep GUI program
I don't think it is comparable


 

even moreso than the lazy people who use AI for everything. Like if I write a medium length post, by hand, like I'm doing right now, there is a good chance that, even if I make a few typos here and there, someone will be so overwhelmed by it that they accuse it of Muh ChatGPT… it's becoming impossible to have conversations on the internet because if you're smarter than a person who spams short hostile sentences, you're assumed to be AI, or some kind of paid shill. What a race to the bottom that is!

There's definitely something to be said about AI and bots killing serious discourse on the internet.
Then again
<serious discourse
>on the internet
Some people might say pick one

The alternative webs like I2P would like to thank AI for shitting up the clearnet so badly that they see growth

>>31954
Discourse was already insufferable because you couldn't just express opinions without
>Source?
demanding every post online to be a university-level essay, to which the inevitable reaction is
>TL;DR
ChatGPT is just automating that process tbh, because everything it spits out is sourced-if-misinterpreted.

It's still mercifully easy to detect when a post is AI. these things were mostly trained by ESL somalis with dubious grasp of certain idioms. And ChatGPT still loves doing these ridiculous parting shots like "its not just X; it's Y"

>>31959
Nah it will flat-out make up sources all the time, the fact that it claims to have sources means nothing. The amount of work you have to do to fact-check them defeats the purpose of using them in the first place. It doesn't actually save you any time if you're at all concerned about accuracy. Only people using it are simultaneously lazy and don't care about the veracity of the content.

>>31988
They were mostly trained on reddit. If it sounds like a reddit post and it's not on reddit, it's very likely AI.


 

Linus built a PC with the other Linus.

I'm thinking about buying a new Linux-friendly laptop next year. What should I buy?

Also: current best distro?
3 posts omitted.

>current best distro?
The dulap image aka. gentoo linux circa 2017. In 2025 anything with a release schedule, a small base system that is easy to reason about and no hard dependencies on systemd.
>>31955
>retarded reactionary liberal
No, he's the type of erudite liberal bureaucract, who prevents the bourgeoisie from cannibalizing themselves.

>>31955
>arch

No. I tried arch once a few years back and if I remember correctly, their glibc was ancient and outdated iirc

>>31958
Youre not schizo enough

i decided arch is the best distro ever to exist after i updated an install that had not received a single update since 2022 and the only manual intervention required was demising the extra repo and moving the nvidia drivers to the upstream version. i dont care for schizo complaints about systemD.

You should buy a GNU Booted Thinkpad X200 or any other laptop compatible with GNU Boot, and replace the Wi-Fi card with an ath9k one. Any other laptop would contain nonfree blobs and should be avoided, otherwise you would be no different from a typical losedows user.

As for the GNU/Linux distribution, try to stick to a freedom-respecting one. I recommend Trisquel GNU/Linux-libre for beginners, but Gentoo GNU/Linux-libre with 
ACCEPT_LICENSE="-* @FREE -Artistic"
is a solid choice too. Don't listen to other meme answers, you should always seek your freedom first above all.


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heuristics - the science of training humans to behave more predictably until you believe that you can read their minds and predict the future.

ai is the final solution. people are encouraged to depend on ai for everything so that they atrophy their brains and lose the ability to think and act independently and then the ruling class will have prescient knowledge of everything we could ever say or do and they will feel like god and finally be able to coom


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