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Proportional-Integral-Derivative Controllers

https://en.wikipedia.org/wiki/PID_controller
20•dhorthy•1d ago

Comments

RossBencina•1h ago
Obligatory link to PID without a PhD: https://www.wescottdesign.com/articles/pid/pidWithoutAPhd.pd...
_kulang•1h ago
The fascination of programmer types with classical control and estimation topics is endlessly interesting as someone who studied control and estimation and hangs out here for interest in the programming. For me it was surprising to see that JEPA is a model predictive control algorithm it an almost literal sense; I guess I’m happy to have studied what I chose when I was 18.
jrflo•1h ago
Yeah, kind of hilarious to me that this was posted here. I suppose if you’ve never encountered control systems at all before they are quite simple, elegant, and cool, but I’m surprised any technical person hasn’t come across them at some point.
_kulang•41m ago
I think CS degrees are a bit light on classical theory in the modern day. In Australia CS degrees are what they say on the tin, but in America it seems almost as if CS degrees are anywhere from cybernetics to pure software development
fcatalan•59m ago
I signed up for one of the first MOOCs ever, about self driving cars by Sebastian Thrun, and of course PID was part of the curriculum.

I think that PID hits a certain sweet spot between cleverness, ease of implementation and practical utility that makes it catnip for the typical programmer's mind.

I liked it so much that when we had to implement it, I downloaded an open source driving simulator to see it work there instead of the simpler python environment we were using.

_kulang•43m ago
It’s very intuitively appealing. We like it at my university for teaching first years how to build a line following robot. It’s one of the first times you can get students to really get that “ah” moment when they realise what they can do with code—it can affect the real world!
boguscoder•1h ago
Honest question: are wiki links to any technical topic post worthy now?

Zigzag Decoding with AVX-512

https://zeux.io/2026/06/17/zigzag-decoding-avx512/
50•luu•3d ago•0 comments

Developers don't understand CORS (2019)

https://fosterelli.co/developers-dont-understand-cors
139•toilet•5h ago•55 comments

Renting a sewing machine from the library

https://www.bbc.com/future/article/20260618-the-weird-and-wonderful-libraries-of-finland
200•sohkamyung•8h ago•102 comments

Loupe – A iOS app that raises awareness about what native apps can see

https://github.com/mysk-research/loupe
220•Cider9986•19h ago•62 comments

The 100k Whys of AI

https://lcamtuf.substack.com/p/the-100000-whys-of-ai
55•surprisetalk•1h ago•19 comments

Building reliable agentic AI systems

https://martinfowler.com/articles/reliable-llm-bayer.html
66•sarangk90•3h ago•13 comments

Epoll vs. io_uring in Linux

https://sibexi.co/posts/epoll-vs-io_uring/
131•Sibexico•8h ago•36 comments

Slow breathing modulates brain function and risk behavior

https://www.cell.com/neuron/fulltext/S0896-6273(26)00339-9
162•croes•9h ago•35 comments

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https://townsquare.cauenapier.com/
148•cauenapier•19h ago•79 comments

15-minute at-home Lyme disease tick test

https://www.bostonglobe.com/2026/06/17/business/lyme-disease-tick-test/
94•bookofjoe•2d ago•39 comments

Your brain was never designed for this much bad news

https://www.sciencedaily.com/releases/2026/06/260614012006.htm
126•colinprince•3h ago•80 comments

Guide to the TD4 4-bit DIY CPU

https://www.philipzucker.com/td4-4bit-cpu/
27•andrewstuart•2d ago•3 comments

Public Service Announcement: Don't Say You Use AI for Writing

https://www.satisfice.com/blog/archives/488148
9•satisfice•2h ago•0 comments

SMPTE Makes Its Standards Freely Accessible

https://www.smpte.org/blog/smpte-makes-its-standards-freely-accessible-openingstandards-library-t...
248•zdw•14h ago•73 comments

The Lost Story of Alan Turing's "Delilah" Project

https://spectrum.ieee.org/alan-turings-delilah
10•asdefghyk•2h ago•1 comments

UHF X11: X11 Built for VisionOS and Apple Vision Pro

https://www.lispm.net/apps/uhf-x11/
192•zdw•14h ago•36 comments

DOS Game "F-15 Strike Eagle II" reversing project needs DOS test pilots

https://neuviemeporte.github.io/f15-se2/2026/06/20/needyou.html
235•LowLevelMahn•16h ago•62 comments

Excessive nil pointer checks in Go

https://konradreiche.com/blog/excessive-nil-pointer-checks-in-go/
12•ingve•2d ago•7 comments

When I reject AI code even if it works

https://vinibrasil.com/when-i-reject-ai-code-even-if-it-works/
154•vnbrs•6h ago•84 comments

Unauthorized alert sent to cell phones across Brazil

https://www.cnn.com/2026/06/20/americas/brazil-hackers-unauthorized-alert-latam
120•zdw•11h ago•85 comments

Armstrong Effect

https://en.wikipedia.org/wiki/Armstrong_effect
23•userbinator•3h ago•1 comments

Whole cross-sectional human ultrasound tomography

https://www.nature.com/articles/s41551-026-01660-4
63•lnyan•2d ago•10 comments

NOLA 'Nacular: One man's crusade to preserve New Orleans's vernacular signage

https://countryroadsmagazine.com/art-and-culture/people-places/nola-nacular/
35•NaOH•4d ago•2 comments

Alice is impatient

https://brooker.co.za/blog/2026/06/19/waiting.html
84•birdculture•11h ago•25 comments

Linux eliminates the strncpy API after six years of work, 360 patches

https://www.phoronix.com/news/Linux-7.2-Drops-strncpy
177•simonpure•10h ago•150 comments

Project Fetch: Phase Two

https://www.anthropic.com/research/project-fetch-phase-two
54•stopachka•7h ago•20 comments

Proportional-Integral-Derivative Controllers

https://en.wikipedia.org/wiki/PID_controller
20•dhorthy•1d ago•7 comments

Temporary Cloudflare accounts for AI agents

https://blog.cloudflare.com/temporary-accounts/
202•farhadhf•20h ago•106 comments

Show HN: StartupWiki – A Free Alternative to Crunchbase

https://startupwiki.tech/
192•shpran•15h ago•59 comments

Semiconductor Lifeline Keeps Fighter Jets in the Air

https://spectrum.ieee.org/phoenix-semiconductors-legacychips-oems
68•rbanffy•4d ago•19 comments