2401
A circuit board from the Saturn V rocket, reverse-engineered and explained
In the Apollo Moon missions, the Saturn V rocket was guided by an advanced onboard computer system built by IBM. This system was built fro...
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,806 posts.
Hardware & Electronics
Any year
2402
Anduril announces Roadrunner, jet-powered VTOL drone
Roadrunner is a reusable VTOL autonomous air vehicle with twin turbojet engines, high-subsonic speed, modular payloads, and AI-driven autonomy for versatile air defense missions.
2403
I Hate (Most) Keyboard 'Fn' Keys
Sometimes keyboards come with a 'Fn' key that allows some of their context-sensitive keys to do particular general-purpose functions. Sometimes these are implemented in careful, considerate and configurable ways... and other times they just make me want to throw the keyboard out of the window.
2404
PinePhone review after a month of daily driving
All opinions are my own, and most of the review is for my own use-cases. There are some comparisons, mostly for entertainment purposes, to iOS (based on my previous device, iPhone 12 Pro) and Android (based on my current device, de-googled OnePlus Nord N10 5G).
2405
BMW F Series Gear Selector, Part Two: Breakthrough
At the end of Part One , I found myself staring at this BMW F20 GWS ( Gangwahlschalter - gear selector switch - thanks to everyone who helped dig up the German name) that I wanted to adapt into an Electric Vehicle conversion.
2406
Librem 5 Hardware Update
Purism makes premium phones, laptops, mini PCs and servers running free software on PureOS. Purism products respect people's privacy and freedom while protecting their security.
2407
How New Long-Range Radios Will Change the Internet of Things
New radios that combine miles of range with years of battery life are changing the way we build and use connected devices. Here’s how.
2408
Hue Light Hack
In a fun-filled deep dive into a Philip's Hue Color light bulb, I disassembled, analyzed, and ultimately restored it to working order. Over the course of the hack, I dismantled the bulb’s interior,...
2409
Introducing multitasking to Arduino
Introducing multitasking to Arduino: learn how to run several tasks at once in your sketches and keep your code responsive.
2410
A step toward fully 3D-printed active electronics
Researchers produced 3D-printed, semiconductor-free logic gates, which perform computations in active electronic devices. As they don’t require semiconductor materials, they represent a step toward 3D printing an entire active electronic device.
2411
2412
Gerät 32620: the machine that powered numerous number stations
A few years ago, I first stumbled over some recordings of number stations and started reading up on their history. For most of them, we have pretty good guesses who ran them and for what purpose. One example is the Gongs and Chimes Station , known for its melody that got increasingly creepy over the years, the more…
2413
Librem 5 Phone Progress Report
Purism makes premium phones, laptops, mini PCs and servers running free software on PureOS. Purism products respect people's privacy and freedom while protecting their security.
2414
Getting debug access on a Brother printer over Telnet
As it turns out, the Brother NC-8700w Command Console is more interesting than it first appears.
2415
Creating ad hoc microphone arrays from personal devices (2019)
Researchers in the Microsoft Speech and Dialog Research Group have made an ad hoc microphone array by allowing meeting participants to join their phones together to enable more accurate meeting transcriptions. Explore how this array outperforms a single-device system.
2416
RP2040 Boot Sequence
This document has been assembled to supplement a set of instructions about writing one's own bootloader for the RP2040. Writing a bootloader requires some understanding of the boot sequence, but it became a bit too cumbersome to include that explanation in the bootloader documentation.
2417
Sandia National Labs SA3000 8085 CPU
Back in the late 1970’s and early 1980’s Sandia National Laboratory (in Albuquerque NM USA) began building the capacity to design, fab, and test IC’s at scale (packaging was handled by Fairchild and Allied Signal). Why would a National Laboratory need the capacity to do this? To provide components that were not…
2418
Rust on Espressif chips – 15-07-2022
Scott Mabin's blog
2419
Motion sensing using the doppler effect
Recently I stumbled upon an interesting paper for implementing motion sensing requiring no special hardware, only a speaker and mic ! Unfortunately the paper didn't include code to test it, so I decided to reproduce it here on the web!
2420
Intel's Immiseration
The long, seemingly inevitable decline of an icon
2421
2422
Alarms in medical equipment
ISO/IEC 60601-1-8, Patterson and other alarms in medical equipment Sample Alarm Sounds - Sirens, buzzers and other sounds
2423
Apple Silicon M1 Die-Shots
Available Logic Subscriptions > 
2424
Frontier AI on Your Own Hardware
In one of my classes I asked the question I was afraid to ask but I just needed the answer to: “Who is afraid of not getting a job after graduating?” About eighty percent of the 150 people in the room raised their hands. That is roughly 120 students answering, in one motion, that they […]
2425
Fast desktop-scale extrusion 3D printing
On-demand printing: A new MIT 3-D printer is 10 times faster than commercial counterparts.
2426
The mintBox, a Linux Mint computer
The pro model is recognizable by its ribbed case (its faster performance requires more heat dissipation)
2427
Signal reflections in electronic circuits
What are "signal reflections", really? And do they matter in circuit design?
2428
How Multi-Beam Flash Lidar Works
An inside look at how Ouster's multi-beam flash lidar architecture works, and why silicon-based design is transforming the lidar industry.
2429
My phone replaced a brass plug
Porting a 2012 OpenCV paper to YOLOv8 and CoreML on iOS to score rifle shooting targets from a photo - replacing the brass-plug scoring gauge with on-device computer vision.
2430
