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Rotary Keyboard
Bodging a rotary dial into a mechanical keyboard
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The latest blog posts to take off on Hacker News. 4,807 posts.
Hardware & Electronics
Any year
1862
Can Doom Run It? An Adding Machine in Doom
For decades, we've asked ourselves "Can it run Doom?". Now we can finally make the ultimate punchline: "Can Doom run it?"
1863
Emulating an iPod Touch 1G and iPhoneOS 1.0 using QEMU (Part I)
My personal website.
1864
Large-format camera movements (2020)
For less than a cup of coffee, a downloadable 29-page reference guide to Large Format Camera Movements, keep it on file or conveniently on your phone
1865
LoRa: Field Testing Antennas
Learn about three different antennas carried by SparkFun, and determine which will suit your long-range needs!
1866
There oughta be a Game Boy capture cartridge
I present to you: The GB Interceptor. It is an adapter that goes between an unmodified Game Boy and the cartridge and offers a video stream of the game via USB. Click the image to see the video on youtube.com. The video above should give you a good overview of what it does, how it works and what its limitations are…
1867
Upgrading my old Chumby 8 Linux kernel
As I mentioned in my last post, I spent a good chunk of my spare time over the past 6 months working on a project I’ve been thinking about for over a decade. I bought a Chumby 8 in 2011. It’s an 8″ touchscreen device powered by the Marvell PXA166 processor. It is essentially a souped-up digital picture frame with…
1868
Towards a More Open Secure Element Chip
“ Secure Element ” (SE) chips have traditionally taken a very closed-source, NDA-heavy approach. Thus, it piqued my interest when an early-stage SE chip startup, Cramium (still in stealth mode), approached me to advise on open source strategy. This blog post explains my reasoning for agreeing to advise Cramium, and…
1869
Tandem solar cell achieves 32.5 percent efficiency
The tandem solar cell converts 32.5% of the incident solar radiation into electrical energy. This value is now officially certified and included in the NREL chart.
1870
How many computers are in your computer? (2021)
Any ‘computer’ is made up of hundreds of separate computers plugged together, any of which can be hacked. I list some of these parts.
1871
The keyboard controller
One of the more common arguments you hear in contemporary computer security circles is about hardware trust and embedded controllers. Technologies like Intel ME, the ARM Secure Element, TPMs, etc, remind us that the architecture of the modern computer is complex and not entirely under our control. A typical modern…
1872
The $8 Linux Computer
Yes, you read that right... for $8 you can run linux on a RISC-V computer. And not just a stripped down kernel without an MMU. No, t...
1873
Open source USB C camera with C mount lens, MIPI Sensor, Lattice FPGA, USB 3.0
This post is going yet another part in the DIY camera projects which have been doing since quite some time. In this post I will showi...
1874
Z-Wave Alliance Announces Z-Wave Source Code Project Now Open and Available
Additionally, Exegin Technologies has demoed how Z-Wave Source Code can be ported to third-party silicon, opening members to develop on any chip provider of their choice. Beaverton, OR – December […]
1875
Na-S Battery: Low-cost with four times the capacity of lithium
Researchers are hoping that a new, low-cost battery which holds four times the energy capacity of lithium-ion batteries and is far cheaper to produce will significantly reduce the cost of transitioning to a decarbonised economy.
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3D Printed Film Video Camera
An expensive and unreliable way to record low quality videos!
1878
Converting a WW2-Era Landing Gear and Flaps Indicator into a USB Peripheral
The landing gear and flaps indicator, control board stack, and C# .NET Windows Forms app running on the Surface in the background. Everything set for smooth and level flight!
1879
Creating aerial imagery with a bike helmet camera (GoPro) and OpenDroneMap
This technical guide details how you can create your own orthorectified (aka satellite view/bird mode) imagery, point clouds and 3D models of streets with nothing but a 360 degree camera mounted on bicycle helmet, and the open source photogrammetry software OpenDroneMap.
1880
Getting a Psion 5 palmtop from 1997 online via PPP (and a Raspberry Pi)
Creating the PiRS232 and playing with the Pi over serial has been leading towards an idea - I wanted to create a small, battery powered device, a sidecar that I could carry with my Psion and use as portable Linux terminal. I also managed to turn it into an Internet...
1881
VR robots are building railways in Japan
Could VR-powered humanoid robots be the future of heavy construction? Over the years we’ve seen a number of major corporations try their hands at marrying VR technology and robotics, from VR convenience store employees and a remote-controlled bomb squad bot to a rather unsettling headset that uses a robotic arm to…
1882
Recent Apple updates leading to WiFi issues?
Meter is currently tracking an issue that is affecting M1/M2 Macbooks and leading to slow internet connection, drops in Zoom calls, and entirely losing a Wi-Fi connection.
1883
A Christmas tree bauble that plays Doom
Christmas is coming again, and generally that means christmas trees and everything in it: lights, streamers, and ofcourse baubles. The holiday is all very jolly and everything, so I decided it was lacking some doom... errm, I mean Doom. So I 3d-printed a small Christmas bauble modeled on an IBM PC, stuffed it with the…
1884
Damnit I slipped and (mostly) built an Amiga 500
EDIT - the original article has an image of the PCB with the floppy power connector mounted the WRONG WAY. This is the INCORRECT WAY. Do NO...
1885
Korg makes music with Raspberry Pi
Think of synth music, racks of keyboards, or massive DJ rigs, and Korg comes to mind. Raspberry Pi is at the heart of some of its new synthesizers.
1886
Apple launches Self Service Repair in Europe
Customers in Belgium, France, Germany, Italy, Poland, Spain, Sweden, and the UK can purchase genuine Apple parts and tools.
1887
New process allows 3-D printing of microscale metallic parts
Engineers infuse a hydrogel structure with a metal solution and then use heat and chemical reactions to leave only the metal behind.
1888
How to estimate an SSD’s working life
The life of an SSD should be more predictable than a hard disk. All you need is its TBW, and the total amount of data written to it so far.
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How the 8086 processor's microcode engine works
The 8086 microprocessor was a groundbreaking processor introduced by Intel in 1978. It led to the x86 architecture that still dominates de...