181
Audio Reactive LED Strips Are Diabolically Hard
I spent years building one of the most popular LED strip visualizers on GitHub. It's the kind of project that's easy to get started but diabolically hard to master.
Topics /
Hardware & Electronics
The most popular blog posts about hardware & electronics on Hacker News. 460 posts.
182
How SpaceX streamlined the Raptor engine
If you’re reading this, there’s a very good chance you’ve seen this famous image of three iterations of SpaceX’s Raptor rocket engine.
183
Intel Starts Shipping High-NA EUV Silicon
Coming to a Panther Lake notebook near you!
184
Dumping Lego NXT firmware off of an existing brick (2025)
Catgirls can have little a RCE, as a treat
185
CT Scans of Health Wearables
Experience the engineering behind today’s leading health wearables including Oura Ring, Dexcom G7, and Jabra Hearing Aids. Industrial CT scans reveal how these devices merge medical precision with consumer design.
186
Parametric CAD in Rust
I keep designing physical parts for our robots. Motor mounts, sensor brackets, wheel hubs. Every time, the workflow is the same: open a GUI CAD program, click a
187
Team from ETH Zurich make high quality quantum swap gate using a geometric phase
Researchers at ETH Zurich have realised particularly stable quantum logical operations with qubits made of neutral atoms. Since these operations, called quantum gates, are based on geometric phases they are extremely robust against experimental noise and can be used in quantum computers in the future.
188
How does GPS work?
An interactive exploration of how GPS works: from the speed of light and trilateration to the cheap clock problem and Einstein's relativity corrections.
189
Retrospectively Reverse-Engineering Apple's Neural Engine
I stopped working on the reverse-engineered Apple Neural Engine (ANE) driver three years ago, upon a sad mini realization that the ANE block is just not that useful, and I could be doing more useful things, and moved onto upstreaming other, more useful, blocks. The ANE's architecture was too opinionated to build a…
190
HDD Firmware Hacking
Do you know how a hard drive works? Come find out with me as I dump, reverse engineer, and modify the firmware on various HDDs and SSDs.
191
Preserving Fisher-Price Pixter
Dmitry.GR: Fisher-Price Pixter: From unknown and obscure to fully documented, emulated, and preserved
192
Write up of my homebrew CPU build
The blog of an engineer from Canada
193
News about Raspberry Pi 6 and Microcontroller Development
On Thursday, three of the lead Raspberry Pi engineers hosted an AMA on the r/engineering subreddit. Raspberry Pi 6 One of the most interesting tidbits was on the Pi 6. Looking back at previous launches: 2012: Raspberry Pi 2015: Raspberry Pi 2 (+3 years) 2016: Raspberry Pi 3 (+1 year) 2019: Raspberry Pi 4 (+3 years)…
194
EU mandates replaceable batteries by 2027 (2023)
The new law will ensure that batteries are collected, reused and recycled in Europe and will support the shift to a circular economy.
195
Teardown: A Generic 7-Port USB 3.0 Hub That Wasn't
The recent end-of-financial-year sales were rather interesting – I found myself spending a lot more time browsing AliExpress than I did Amazon or eBay this year which is something I wouldn…
196
Apple Studio Display and Studio Display XDR
Apple today announced a new family of displays, Studio Display and Studio Display XDR, that takes pro workflows to the next level.
197
Batteries Not Included, or Required, for These Smart Home Sensors
Engineering and computing researchers create simple metal tags with unique ultrasonic fingerprints to detect door openings and other movements.
198
Gemini 4 Argon for Robotics
Discover Gemini 4 Argon for robotics: leading the ERQA benchmark with physical reasoning, zero-shot control, Real2Sim, and agentic workflows.
199
Rust (and Slint) on a Jailbroken Kindle
I recently jailbroke my 7th generation Kindle Paperwhite. While my motivation probably should have been "breaking free from Amazon's clammy and tightening grip", the truth is I wanted a way to use it as a clock on my nightstand. I found this project and figured I could just make some adjustments to the code. And that…
200
Weave Robotics launches Isaac 1, a $7,999 home robot with Fall 2026 deliveries
Isaac 1 is a mobile robot for the home — designed and assembled in San Francisco. Five colorways, private by design, and capable of far more than folding.
201
Why is everyone trying to build a solid-state battery?
A battery technology that’s getting a lot of attention is solid-state batteries, lithium-ion batteries that replace the liquid electrolyte with a solid material.
202
Why Drawing Tablet Brands Won't Collaborate on Linux Floss Drivers
As you probably already know, I regularly get in contact with drawing tablet brands for reviews on my Youtube channel . I usually agree to do detailed video test of their models (see my hardware tag) but only at two condition: test the tablet on GNU/Linux, and only use Free/Libre and Open Source software for the test…
203
Way to Play Super Mario 64: On Apple Vision Pro
Super Mario 64 becomes a living diorama on Apple Vision Pro. Each level sits on your real table, and you walk around it while you play with a game controller. You are the camera: lean in for a closer look, or step around the table to see Mario from any side.
204
SIMD-accelerated computer vision on a $2 microcontroller
An accelerated FAST feature detector for the ESP32-S3 leveraging 128-bit SIMD instructions, achieving ~2x the performance of the reference implementation.
205
I learned PCB design, 3D printing and C just to listen to music
I always liked to see and touch the cover artwork of the CDs and LPs I bought in the past, but in the end the convenience of digital streaming won me over and I accepted no (or stamp-sized) artwork. Lately I’ve been missing this more and more and ultimately decided to try to do something about it. So I built a…
206
Reviving a 15-year-old netbook with Arch Linux
KO | EN | Discussions on HN I still have a netbook I bought back in 2009. The ASUS Eee PC 1000HE has an Intel Atom N280 and 1GB of DDR2 RAM. The Atom N series was Intel’s line of cheap, low-performance CPUs for netbooks. The chip has 56KB of L1 cache and 512KB of L2 cache, and its clock speed is 1.6...
207
Getting 25 Gbps Thunderbolt Ethernet on My Mac Studio
I've been using the built-in 10 Gigabit Ethernet on my Mac Studio for a few years. It works fine: I can edit 4K video straight off my NAS over the network, and run backups at around 1 GB/sec. But... I want more. I upgraded my rack and my NAS to 25 GbE a couple years ago, and wanted to upgrade my main workstation, too.
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Raspberry Pi Zero 3W and Pi 4 Model A spotted in device trees
Device tree files point to a Raspberry Pi Zero 3 W with the Pi 4’s BCM2711 chip and a cut-down Pi 4 Model A.
210
I turned my RSS feeds into an e-ink newspaper to stop reading on my phone
I built a small tool that turns my RSS feeds into an e-ink newspaper, so I can read my favorite blogs on a pocket e-reader instead of my phone.