2521
How To Build A Smartwatch: Software
PebbleOS, mobile app, SDK improvements and more!
Topics /
Hardware & Electronics
The most popular blog posts about hardware & electronics on Hacker News. 3,046 posts.
2522
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.
2523
Mysteries of the Griffin iMate and the Apple Extended Keyboard II
A vintage keyboard, a mysterious battery, and some questionable 1990s engineering choices...
2524
Cloning a 6502 Apple-1 in just 930 logic gates
Blog about vintage computers and homebrewing computers.
2525
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 …
2526
Help My c64 caught on fire
Angelo Pesce's homepage & blog on computers, graphics and other things.
2527
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…
2528
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…
2529
Leaving Arizona – the Story of the Motorola 6800 part 2 and creation of the 6502
Part 2 of The Story of the Motorola 6800
2530
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.
2531
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...
2532
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…
2533
2534
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...
2535
2536
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.
2537
RAM: the forgotten history (2024)
We owe computers not to Charles Babbage, but to the invention of electronically-controlled working memory.
2538
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.
2539
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.
2540
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...
2541
AMD YOLO
AMD is sending us the two MI300X boxes we asked for. They are in the mail.
2542
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.
2543
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…
2544
2545
Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
In this guide, I will explain how to receive SMS messages and forward them to your Telegram account using Raspberry PI Zero W and Wireshare GSM hat. Python will be used to read SMS messages and forward them to Telegram Bot API. Messages will be listened to by Gammu SMS service and it will trigger the Python script…
2546
I turned a 40 year old Apple Mouse into a speech to text button
A place to play around with technology and make it easy and fun
2547
The 3DS Cryptosystem
I think one of the biggest challenge for system engineers is designing security. Recently, at the 32c3 conference, plutoo, derrek, and smea presented a series of hacks that completely defeated the security of the 3DS. As a result, people have implemented boot-time unsigned code execution (called “arm9loaderhax” in the…
2548
2549
RISC-V SBI and the full boot process
Detailed explanation on how RISC-V boot process works and what role SBI has in the RISC-V software stack. Concrete example with OpenSBI.
2550
Soyuz spacecraft digital clock teardown
We recently obtained a clock that flew on a Soyuz space mission. 1 The clock, manufactured in 1984, is much more complex inside than you'd ...