3991
Cracking Litter Box DRM
TLDR : My robot cat litter box bricks itself after a set number of washes with each soap cartridge so I reverse engineered and suppressed the verfication process to enable refilling.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,807 posts.
Hardware & Electronics
Any year
3992
Drivetrain Design for Boosted's Electric Skateboard
The drivetrain, like the motor controller, has evolved extensively since the boards we built before Kickstarter. We’re going to take you through some of the principles and constraints that have...
3993
Mysteries of the Griffin iMate and the Apple Extended Keyboard II
A vintage keyboard, a mysterious battery, and some questionable 1990s engineering choices...
3994
Cloning a 6502 Apple-1 in just 930 logic gates
Blog about vintage computers and homebrewing computers.
3995
How to build a $5 Arduino clone
If you are like me and build projects with Arduino, you must have felt the frustration with ripping your project apart, because you wanted to build something else with that Arduino. I have had the …
3996
Librem 5 general development report – October
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.
3997
Help My c64 caught on fire
Angelo Pesce's homepage & blog on computers, graphics and other things.
3998
Matt Cutts: $1,000 to the 2 best implementations of the recently-hacked Kinect
I’m starting a contest for people that do cool things with a Kinect. See the details below. Before I joined Google, I was a grad student interested in topics like computer vision, motion self…
3999
A partially-automated medium-throughput homemade cider press with lasers
Most people who know me well know I really like apples. I'm a big fan for a lot of reasons- taste, texture, the fact that they're a symbol of my favorite season, the sheer quantity of accessible food that can grow on a single tree, et cetera. Last year, I decided I wanted to make some homemade apple cider. I bought a…
4000
Speaking without vocal cords, thanks to a new AI-assisted wearable device
The adhesive neck patch is the latest advance by UCLA bioengineers in speech technology for people with disabilities.
4001
Thermal Testing Raspberry Pi 4
Raspberry Pi 4 just got a lot cooler! The last four months of firmware updates have taken over half a watt out of idle power and nearly a watt out of fully loaded power
4002
Leaving Arizona – the Story of the Motorola 6800 part 2 and creation of the 6502
Part 2 of The Story of the Motorola 6800
4003
Beamforming in PulseAudio
In case you missed it – we got PulseAudio 9.0 out the door , with the echo cancellation improvements that I wrote about . Now is probably a good time for me to make good on my promise to expand upon the subject of beamforming.
4004
Die analysis of the 8087 math coprocessor's fast bit shifter
Floating-point numbers are very useful for scientific programming, but early microprocessors only supported integers directly. 1 Although...
4005
How the C64 Keyboard Works (2017)
I'm almost ashamed to admit it, but just 1 year ago when I started working on C64 OS, I didn't have the first clue how the C64 Keyboard worked. I knew there was a thing called the keyboard buffer, but I had cloudy thoughts of it being inside the keyboard itself. When I had to actually write the keyboard scanning…
4006
4007
Reading a VGA monitor's configuration data with I2C and a PocketBeagle
Have you ever wondered how your computer knows all the characteristics of your monitor— the supported resolutions, the model, and even the...
4008
4009
Reverse-engineering Rosetta 2 Part 1: Analyzing AoT files and the runtime
Apple announced that it would be moving from Intel processors to Arm-based Apple Silicon CPUs for Macs at WWDC 2020. The Apple Silicon-based Mac Book Air and Pro were released in October 2020 with great fanfare.
4010
Upgrading my Chumby 8 kernel part 10: RTC
I’m going to start this post off with the obligatory list of links to the previous parts in the series if you’re new here and are interested in seeing the full story: 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , and 9 . This is the tale of how I upgraded my Chumby 8 to run a modern Linux kernel.
4011
RAM: the forgotten history (2024)
We owe computers not to Charles Babbage, but to the invention of electronically-controlled working memory.
4012
How many registers does an x86-64 CPU have?
x86 is back in the general programmer discourse, in part thanks to Apple’s M1 and Rosetta 2 . As such, I figured I’d do yet another x86-64 post.
4013
60W equivalent LED bulb uses 9.5W and costs $13
Slot 10k di situs CEGIL29 untuk user pemula mudah daftar beserta testimonials game slot 10rb terlengkap dengan deposit QRIS murah, panduan main, hingga info slot88 gampang menang.
4014
Google Tensor SoC debuts on the new Pixel 6 this fall
Google Tensor is our first custom-built SoC specifically for Pixel phones, and it will power the Pixel 6 and Pixel 6 Pro later this fall.
4015
The Whispering Earring
Cleaner, easier-to-reference repo of Scott Alexander’s The Whispering Earring (that’s the Schelling title, real title below). Original from livejournal is ba...
4016
What I Wish I Knew About U2F and Other Hardware MFA Protocols
We revamped the second-factor authentication in Teleport 6.0. This post provides a birds-eye view of U2F and other cryptographic hardware standards.
4017
AMD YOLO
AMD is sending us the two MI300X boxes we asked for. They are in the mail.
4018
Cat Automatic Sprayer
If you have a cat, you know that sometimes his instincts push it to eat green eatable-looking plants, whatever they are, and whatever the consequences may be.
4019
New hard drive rituals (2018)
Over the last 10 years that I've been messing around with Linux servers (hence the name of the site by the way) there's been one thing above all else that's always required special care - hard drives. They are mechanical beasts just waiting to eat your data at any time. Entire businesses are built around their…
4020
PC keyboard hides an interesting secret
I found this keyboard on eBay recently, although it wasn’t quite the one I was looking for I still think it is interesting. Let me show you why. This is the keyboard, and you would be forgiven for…