frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

fp.

Open in hackernews

Running Tesla Model 3's computer on my desk using parts from crashed cars

https://bugs.xdavidhu.me/tesla/2026/03/23/running-tesla-model-3s-computer-on-my-desk-using-parts-from-crashed-cars/
114•driesdep•1h ago

Comments

owenthejumper•42m ago
Could 'lb' be load balancer?!
trsohmers•22m ago
It actually stands for "lizard brain"... it is (or at least was) an Infineon Aurix control and monitoring microcontroller, they may have changed to a newer one.
LikeBeans•35m ago
Very cool. Over a year and a half ago I installed a towing brake controller in my Tesla Model Y. Found the location of the plug, how to access and the pinout online (confirmed via a voltmeter..) so the car's side felt straight forward. But then I needed to find a brake controller that can work with the higher voltage (14.4v vs the normal 12v). Then built a cable from the brake controller to the connector that plugs into the car that I found on eBay. I velcro'd the controller under the dashboard. It works pretty well. I towed my small camper several times with it last year with no issues. Yay! However my little project is nothing compared to this post. Love people hacking away. So cool.
ferongr•29m ago
>then I needed to find a brake controller that can work with the higher voltage (14.4v vs the normal 12v)

Put a voltmeter on the battery terminals of a regular car at 2000rpm and note the voltage. You'd be surpised (the alternator can produce as high as 15V on some cars).

AlotOfReading•4m ago
Automotive transients can be wild. I did a bringup with a board that had specified 100+v range specified for transients and finicky quality requirements on the output. The power supplies took up most of the (very large) board.
silisili•27m ago
> But then I needed to find a brake controller that can work with the higher voltage (14.4v vs the normal 12v)

Not understanding this sentence. Most running ICE vehicles product closer to that 14.4 than 12v. I think a standard controller would have worked fine?

serf•23m ago
you're correct. a '12v ICE' alternator generates up to 14.8-15.2v. Most automotive stuff can operate between 9ish-16ish-v , of course totally depending on the product.

of course this is just a modern interpretation. older stuff runs at 6v and some weirdo offbeat cars have a 24v/48v rail sitting around somewhere. Cop cars often had alternators that put out weird voltage ranges for certain equipment, or dual 12v for high amperage output.

londons_explore•17m ago
Whilst cranking, an ICE car will drop to around 6 volts (then maximum power is extracted according to thevenim's theorem).

That means all computers etc will work at 6v.

toast0•2m ago
> Whilst cranking, an ICE car will drop to around 6 volts (then maximum power is extracted according to thevenim's theorem).

> That means all computers etc will work at 6v.

Not necessarily all of them. Plenty of stuff will drop out while cranking; hopefully not the computers that run the fuel injection and ignition, though.

anigbrowl•29m ago
I have no wheels and I must drift
MengerSponge•27m ago
Fun linguistic quirk: Americans tend to call it a "wiring harness", whereas Brits prefer "loom"
Dan_-•8m ago
So what do you call the tubing around the wire bundle? That’s what we call “loom”.
girvo•22m ago
It's funny to hear LVDS be described as an "automotive" cable when all of my run-ins with it are for connecting laptop displays to their main-boards! (though that has a very different connector on it, and its a very general term for the signalling protocol from what I remember)
inamberclad•11m ago
SpaceWire is also just LVDS with an uber-minimal routing protocol. It runs on a lot of satellites.
slfnflctd•8m ago
Not saying there's anything wrong with your perspective (lots of terms get in muddied waters, it's common and not a problem if everyone is on the same page), but this is what I just found on Wikipedia:

"Early on, the notebook computer and LCD vendors commonly used the term LVDS instead of FPD-Link when referring to their protocol, and the term LVDS has mistakenly become synonymous with Flat Panel Display Link in the video-display engineering vocabulary."

https://en.wikipedia.org/wiki/Low-voltage_differential_signa...

dogman1050•17m ago
I love that it has a standard RJ45 ethernet connector.
bombcar•15m ago
I thought I saw an HDMI connector, but maybe I was wrong.
inventor7777•10m ago
Ha! Reading this comment made me curious, so I went back and looked at the article and there does seem to be a full sized HDMI connector. I wonder if it is enabled, or just for Tesla internal testing?
kube-system•16m ago
> Turns out that actual cars don’t have individual cables. Instead they have these big “looms”, which bundle many cables from a nearby area into a single harness. This is the reason why I could not find the individual cable earlier. They simply don’t manufacture it.

I was really surprised to read this at the end of the article -- how could someone be this deep into a project of this depth and not realize this?! Not only because all cars (...er... all vehicles) are wired this way, but also because the documentation they were referencing has plenty of detail to show this.

Show HN: Agent Kernel – Three Markdown files that make any AI agent stateful

https://agent-kernel.dev/
1•obilgic•2m ago•0 comments

Grove: Distributed ML Training over AirDrop

https://swarnimjain.com/grove
3•swar_ja•5m ago•1 comments

Pipguard – catches .pth malware before pip install runs

1•shenxianpeng•6m ago•0 comments

The Supreme Court's Style Guide

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2758862
1•m-hodges•8m ago•0 comments

Artificial Intelligence: Shades of Gray

https://changelog.complete.org/archives/42503-artificial-intelligence-shades-of-gray
1•edward•11m ago•0 comments

Show HN: Jmail Launches Jcal

https://jmail.world/calendar
1•immatheus•11m ago•0 comments

The Death of Twitter

https://etbe.coker.com.au/2026/03/25/death-of-twitter/
1•edward•13m ago•0 comments

Poking Around ChatGPT's Sandbox

https://mkarots.github.io/blog/chatgpt-sandbox-exploration/
1•cepstrum9•13m ago•0 comments

Skirt Length Oscillations

https://phys.org/news/2026-03-bell-bottoms-today-miniskirts-tomorrow.html
1•firexcy•14m ago•0 comments

TSA PreCheck Touchless ID

https://www.tsa.gov/touchless-id
2•Velocifyer•16m ago•2 comments

Amazon's unprecedented gamble on AI redemption might just work

https://economist.com/business/2026/03/25/amazons-unprecedented-gamble-on-ai-redemption-might-jus...
2•andsoitis•18m ago•0 comments

Meta and YouTube found negligent in landmark social media addiction case

https://www.theverge.com/policy/900654/meta-google-instagram-youtube-social-media-addiction-trial...
2•benwerd•19m ago•0 comments

Multi-Vector Retrieval at Sub-Millisecond Latency

https://mixpeek.com/blog/colqwen2-muvera-multimodal-late-interaction
1•Beefin•19m ago•0 comments

Show HN: A Technique for Self-Improving Agents

1•dataviz1000•23m ago•0 comments

21,864 Yugoslavian .yu Domains

https://jacobfilipp.com/yu/
1•freediver•24m ago•0 comments

Show HN: MonkePay – Charge AI Agents per API Request in USDC

https://www.monkepay.xyz/
2•iamalibaig•32m ago•0 comments

Show HN: Room Service – understand what's filling your Mac

3•ardacankirkoc•32m ago•1 comments

Will you pay for this? – meet to LinkedIn post

1•zeelpatel27•34m ago•0 comments

Better Auth Usage (plugin)

https://github.com/EggerMarc/better-auth-usage
2•eggermarc•35m ago•1 comments

How A Spartan Revolutionized Baseball

https://msutoday.msu.edu/news/2026/03/spartan-revolutionize-baseball
1•rmason•36m ago•1 comments

Inside the covert operation to bring down the party threatening Orbán's rule

https://telex.hu/direkt36/2026/03/25/inside-the-covert-operation-to-bring-down-the-party-threaten...
3•chpatrick•36m ago•1 comments

Show HN: First autonomous AI agent purchase via open protocol (UCP)

https://ucpchecker.com/blog/first-autonomous-ai-agent-purchase-ucp
1•benjifisher•39m ago•0 comments

Postal Service to Impose Its First-Ever Fuel Surcharge on Packages

https://www.wsj.com/us-news/postal-service-to-impose-first-ever-fuel-surcharge-on-packages-73b5e0fd
3•bookofjoe•39m ago•1 comments

iOS 26.5 update adds age verification in the UK

https://www.theverge.com/tech/900284/apple-ios-26-4-uk-age-verification
1•treebrained•40m ago•0 comments

Kern – AI agents built for coworking

https://kern-ai.com/
1•obilgic•40m ago•0 comments

Tmux Replacement for Agentic Workflows

https://github.com/nmelo/initech
2•nmelo•41m ago•0 comments

Uploading to Wikimedia Commons with AI

https://daniel.lawrence.lu/blog/2026-03-25-uploading-to-wikimedia-commons-with-ai/
2•plun9•42m ago•0 comments

AutoGaze removes redundant video patches before passing into a ViT or MLLM

https://autogaze.github.io/
1•MayCXC•42m ago•0 comments

Cannabis Through the Ages

https://thereader.mitpress.mit.edu/cannabis-through-the-ages/
2•samizdis•44m ago•0 comments

The U.S. is blocking router approvals unless they are manufactured domestically

https://www.igorslab.de/en/the-u-s-is-blocking-new-router-approvals-unless-they-are-manufactured-...
2•tablets•46m ago•0 comments