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Why the Amazon Basics Keyboard Is My Favorite Keyboard
I've been typing for 20+ years and this is one of my favorite general purpose / programming keyboards when factoring in a few things.
New
The latest blog posts to take off on Hacker News. 4,807 posts.
Hardware & Electronics
Any year
3152
FreeBSD on the Lenovo Thinkpad
Compatibility of FreeBSD on a Lenovo Thinkpad T480, notes and fixes (HiDPI, Trackpad, camera, etc).
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Software made me loathe my car
I am the disgruntled owner of a 2015 BMW 320d xDrive. That’s a luxury car, at least to a Dane. And I’m a bit surprised that it’s come to this point. It is, mechanically, a wonderful car. The double-clutch transmission is smooth, it’s easy to drive, the engine is modest, but decent, the milage is great (20 km/l or ~47…
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MacBook Pro Keyboard Drives Me Crazy
The 2018 MacBook Pro Keyboard Drives Me Crazy
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Study identifies main culprit behind lithium metal battery failure
UC San Diego researchers have discovered the root cause of why lithium metal batteries fail, challenging a long-held belief in the field. The study presents new ways to boost battery performance and brings research a step closer to incorporating lithium anodes into rechargeable batteries.
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Zen 2 Missives – AMD now delivering efficiencies that are double that of Intel
After languishing through the CPU dark-ages (read: Intel trying real hard to keep people on 4 cores so they could charge an arm and a leg for more), the last two years has seen a vertible tsunami of advances in CPU technologies. AMD's introduction of an 8-core CPU (the 1700X) began the rat-race and with both AMD and…
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Capturing PAL video with an SDR, and a few dead ends
A blog about signals, programming, music, and other stuff.
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Apollo Guidance Computer switching power supply works after 50 years
We recently restored an Apollo Guidance Computer, the revolutionary computer that helped navigate to the Moon and land on its surface. 1 At...
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Where do interrupts happen?
Trying to determine exactly where asynchronous interrupts are delivered on Intel CPUs.
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Camera vs. Lidar
Company updates and technology articles from Scale AI.
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Building a vacuum tube computer
Having 32 (31) registers, this means that a refresh will be issued each 256us. To be on the safe side, the capacitor should keep its charge much longer than that. Testing with both EAA91 (ideal diode) and some semiconductors: Diode charge hold time Comment EAA91 >500us ideal diode 1N4148 >500us for reference, leakage…
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My Home Lab Server with 20 Cores / 40 Threads and 128 GB Memory
Update fall 2024 I have decided to decomission this machine and it is no longer in use.
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The “terrible” 3 cent MCU – a short survey of sub $0.10 microcontrollers
Like many others, I was quite amazed to learn about a microcontroller sold for only 0.03 USD via the EEVblog last year. How was this possible? Many assumed this was a fire sale of an old product. D…
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GNU Radio 3.8
GNU Radio is a free and open source software development toolkit for building software radios and signal processing systems. Run it on your desktop, or try GNU Radio flowgraphs in your browser with GNU Radio World.
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Home 3D metal printing: first results
A couple of weeks ago I learnt about an interesting 3d metal printing process , from a company selling it for $100k USD, and speculated that it might be DIY-able for much less. Well I now have some promising first results.
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Ransomware-ing a DSLR Camera
Research by: Eyal Itkin TL;DR Cameras. We take them to every important life event, we bring them on our vacations, and we store them in a protective case to keep them safe during transit. Cameras are more than just a tool or toy; we entrust them with our very memories, and so they are very important […]
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Commodore 900
Click the Commodore icon to return. Intending to use pictures or text from this page? Please read this notice . Last modify 11 August 2020.
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Solar Powered Raspberry Pi Camera
https://www.youtube.com/watch?v=M53eJI90ETE Update: this project was featured in issue 92 of the official Raspberry Pi magazine (download as PDF, buy the issue or subscribe). SSH-ing into a remote solar powered Raspberry Pi at the top of an apple tree has a special feeling -- almost like commanding a spaceship where…
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AMD EPYC processors come to Google, and to Google Cloud
Google is using the new 2nd Gen AMD EPYC processor for its own workloads, and will offer VMs based on the chip to Google Cloud customers.
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USB-C Easy Bake Oven (2017)
I modified an Easy Bake Oven to run off USB-C. The obvious question is "Why?", but I prefer to ask, "Why Not?". The USB-C spec allows for 100 Watts of power to be transferred through the connector, and that is the power rating for the oven, so it should work.
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How to Measure Indoor Air Quality with a Raspberry Pi, RuuviTags and PMS7003
Learn how to build an air quality monitoring device with a PMS7003 sensor, Raspberry Pi and some Java code. Help raise awareness about air pollution.
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A Guide to Recording 660FPS Video on a $6 Raspberry Pi Camera
This article will discuss the setup steps that are required for recording videos at high frame rates on cheap Raspberry Pi cameras. Frame rates up to 660FPS on the V1 camera and up to 1007 on the V2 camera can be achieved. Filming at these extremely high frame rates on a Raspberry Pi is much more challenging and…
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Turning a MacBook into a Touchscreen with $1 of Hardware (2018)
We turned a MacBook into a touchscreen using only $1 of hardware and a little bit of computer vision.
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Casting Glass from 3D Printed Molds
31 Jul 2019 | self-Amos , glass art , kiln casting , fabrication , kilncasting , lost-resin , lost-wax
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Disassembling the Sony FE 135mm F/1.8 GM
When we optically tested the Sony FE 135mm f/1.8 GM we were mighty impressed. Then I threw up in my mouth a little when I read a couple of reviewers comment on the build quality. Because holding a…
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Open Source Hardware Hearing Aid Part 1
My mother got hearing aids a few years ago. About a month later, she lost one. Insurance said if she wanted a replacement, she could pay them many thousands of dollars or she could wait a year.