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Hardware & Electronics
The most popular blog posts about hardware & electronics on Hacker News. 4,805 posts.
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3600 MHz Raspberry Pi 5 with Liquid Nitrogen
I tried everything but couldn’t turn this Raspberry Pi 5 into the World’s Fastest Pi 5. Unfortunately, we can’t quite claim that title.
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My open-source, do-it-yourself cellphone (2013)
Meet an open-source, do-it-yourself cellphone built with Arduino. See how a maker designed and assembled a working phone.
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13-Year-Old, Nicholas Sharkey, Creates a RISC-V Core
one of our goals with the workshop is to give students an opportunity to learn logic design earlier in their education--like, say, as a college freshman or sophomore. So just imagine our surprise when Nicholas introduced himself in the chat forum of our workshop.
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Printed robots with bones, ligaments, and tendons
For the first time, researchers have succeeded in printing a robotic hand with bones, ligaments and tendons made of different polymers using a new laser scanning technique.
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Hacking Water
From water insecurity to offgrid, solar pumped, gravity flow 1000 gallons of running water.
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IBM 360’s are searching for a new home
Hello! If you’re still here reading this blog, I’m impressed. We haven’t posted anything of note for some years now and frankly, thats because we haven’t done anything of note with the project. The machines have been sitting in their home, virtually untouched, for 4 years now. Chris & I (Adam) are just too busy with…
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Synthetic aperture radar autofocus and calibration
3D trajectory position error estimation autofocus, antenna pattern normalization, and polarimetric calibration for drone mounted SAR radar.
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External boot disks still don’t work properly with M1 Macs
Making an external bootable SSD for an M1 Mac has proved tricky. Has this changed in macOS 11.2? If you’ve already got 11.1 running on one, how do you update it to 11.2?
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Windows 8 and the Microsoft Surface
Right now, people are burying Windows 8. Even people you'd normally expect to be on Microsoft's side are unhappy with it. Me, though? I kind of like it.
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Burning a NeXTCube (1993)
I am writing this memo to explain what happened to the case our NeXTCube Computer, Serial Number AA001032.
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How Apple's developers reflashed Mac ROMs in the '90s
After I wrote about the possibility of programmable Mac ROM SIMMs in Quadras a couple of months ago, I suspected that there had been a way for developers at Apple in the 68k Mac era to reflash the ROM in their Macs during development, just like BIOS updates on PCs. The reason I believed this is because the ROM SIMM…
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PinePhone Misconceptions
I take no pleasure in writing this blog post. In fact, even as I am writing these words I am internally torn on whether this is the right approach to addressing the problem on hand. Whether I’ve chosen the right approach remains to be seen, but regardless, I now feel it’s time to confront misconceptions about the…
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The Camera Is the Lidar
It was clear when Ouster started developing the OS-1 three years ago that deep learning research for cameras was outpacing lidar research…
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How Passive Radar Works
Passive radar is radar that doesn't need a transmitter; it uses existing broadcasts of opportunity.
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Origami-inspired soft artificial muscles
By Lindsay Brownell (CAMBRIDGE, Mass.) — Soft robotics has made leaps and bounds over the last decade as researchers around the world have experimented with different materials and designs to allow once rigid, jerky machines to bend and flex in ways that mimic and can interact more naturally with living organisms…
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Do-it-yourself EEG, EKG, and EMG
Do-it-yourself EEG, EKG, and EMG Source: https://sites.google.com/site/chipstein/home This site features things related to my interests...
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Reverse-engineering Ethernet backoff on the Intel 82586 network chip's die
Introduced in 1973, Ethernet is the predominant way of wiring computers together. Chips were soon introduced to handle the low-level aspects...
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Golang on the Playstation 2
The PS2 is more than capable of doing some wild things, including running Linux. I always wondered if we could just write baremetal Go code on it, so I decided to give it a try.