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Open hardware desktop 3D printing is dead?
How Chinas strategic focus on 3D printing and patent incentives since 2020 created a "minefield".
Topics /
Hardware & Electronics
The most popular blog posts about hardware & electronics on Hacker News. 3,044 posts.
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A home-made lithographically-fabricated integrated circuit
I am very excited to announce details of the first homemade integrated circuit and share the journey that this project has taken me on over the past year. I hope that my success will inspire others and help start a revolution in home chip fabrication. When I set out on this project I had no idea of what I had gotten…
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This Blog is now hosted on a GPS/LTE modem
Ethical Hacking and Cybersecurity Blog
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Qwenputer: A functioning, deterministic RISC-V CPU inside Qwen3.5
I compiled a RISC-V CPU into Qwen 3.5 4B's weights, using its Gated DeltaNet layers as RAM. It runs C and MicroPython inside the forward passes, and Qwen uses it for exact arithmetic.
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I spent $266 and four AI models to own my tablet. GLM-5.3 finished it in a day
Owning a tablet Amazon kept shutting down: CVE-2022-38181, four AI models, five months
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4-bit calculator made from cardboard and marbles
Might not be the most reliable or useful contraption but it's definitely a fun one.
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I got almost all of my wishes granted with RP2350
Dmitry.GR: Everything you ever dreamed the RP2040 would be is here - fall in love with the RP2350
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Pwnd Blaster: Hacking your PC using your speaker without ever touching it
Abusing an unauthenticated Bluetooth protocol to turn a PC speaker into a Rubber Ducky.
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RTX 5090 and M4 MacBook Air: Can It Game?
What if you could strap a full desktop GPU to your MacBook Air? Turns out, you can.
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I bricked my Christmas lights
Reverse engineering Bluetooth LE LED light controllers, or How I Bricked My Christmas Lights If a device communicates via Bluetooth LE and has an app, it deserves to be integrated into my home automation system. I’ve spent a significant amount of time reverse engineering various budget-friendly LED light strips to...
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I hacked my car
Note: As of 2022/10/25 the information in this series is slightly outdated. See Part 5 for more up to date information. The Car Last summer I bought a 2021 Hyundai Ioniq SEL. It is a nice fuel-efficient hybrid with a decent amount of features like wireless Android Auto/Apple CarPlay, wireless phone charging, heated…
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Enclave: An Unpickable Lock
Just about every key lock in the world today has the same fundamental flaw. They accept input (a key, or a lockpicking tool) from the outside world, and they test if that input is correct at the same time . This flaw opens up two kinds of vulnerabilities.
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Can you get root with only a cigarette lighter?
Before you can write an exploit, you need a bug. When there are no bugs, we have to get creative—that's where Fault Injection comes in. Fault injection can take many forms, including software-controlled data corruption, power glitching, clock glitching, electromagnetic pulses, lasers, and more.
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Building an occupancy sensor with a $5 ESP32 and a serverless DB
How I built an occupancy sensor with an ESP32C3, Cloudflare Workers/D1, and Grafana
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Grayscale on 1-bit LCDs (2022)
Note: this post is also available in video format on YouTube . Some demo/ difference would be more obvious in video.
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Hold on to Your Hardware
A warning about rising prices, vanishing consumer choice, and a future where owning a computer may matter more than ever as hardware, power, and control drift toward data centers and away from people.
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The Quest for Netflix on Asahi Linux
Note: If you're here because you just want to watch Netflix on Asahi, install this (Edit: for Arch users, grab this . Fedora users can install the widevine-installer package), and then scroll down to the "Netflix-Specific Annoyances" section.
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We Need a Better PC
My challenge: I'm trying to get a computer that doesn't suck Like lots of people I spend about half of my waking life on my laptop, so this really matters. However, I don't want a Mac. Apple...
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MacBook Pro Keyboard Drives Me Crazy
The 2018 MacBook Pro Keyboard Drives Me Crazy
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Why is Rosetta 2 fast?
Rosetta 2 is remarkably fast when compared to other x86-on-ARM emulators. I’ve spent a little time looking at how it works, out of idle curiosity, and found it to be quite unusual, so I figur…
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Self driving 1993 Volvo with open pilot
Together with some friends, I decided earlier this year to particpate in the Carbage run 2025 Winter edition. This is a 6-day journey in winter all the way through Sweden to the polar circle, and back down to Helsinki in a group of roughly 400 cars. One small catch (you might have guessed it from the name): your car…
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I like the RP2040
The RP2040 is a microcontroller made by Raspberry Pi. Unlike their more widely known products, the RP2040 is meant to be embedded in consumer electronics. It's cheap and available in tens of thousands for immediate dispatch from your local Mouser.
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Off-Grid Cyberdeck: Raspberry Pi Recovery Kit
Short, medium, and long form tech projects. Detailed photos and build logs with benefits for paid subscribers.
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My security camera shipped a GitHub admin token in its login page
i dissected some firmware for a Hanwha Wisenet XNP-9300RW and found that it had github admin tokens in it, also miltech is weird
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Radios, how do they work?
A brief introduction to antennas, superheterodyne receivers, and signal modulation schemes.