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A new class of tiny, self-propelled robots that can zip through liquid at speed
CU Boulder engineers have designed a new class of "microrobots" several times smaller than the width of a human hair that may be able to treat human illnesses
Topics /
Hardware & Electronics
The most popular blog posts about hardware & electronics on Hacker News. 474 posts.
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Undocumented 8086 instructions, explained by the microcode
What happens if you give the Intel 8086 processor an instruction that doesn't exist? A modern microprocessor (80186 and later) will gener...
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A Modern C Development Environment
A community and blog for embedded software makers
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Beginners guide to building a hardware hacking lab
VSS Hardware Hacking Wiki and Blog Entries
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Sony develops energy harvesting module from electromagnetic wave noise
Sony Semiconductor Solutions Group develops device business which includes Micro display, LSIs, and Semiconductor Laser, in focusing on Image Sensor.
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How does macOS manage virtual cores on Apple Silicon?
Code run in a lightweight Virtual Machine can’t take advantage of the Efficiency cores of the host Apple silicon Mac. How then does Sonoma handle its threads?
157
Unauthenticated RCE on a RIGOL oscilloscope
I work in a company that uses custom electronic boards, so there are plenty of instruments floating around that electrical engineers employ to debug faulty connections and solderings. One kind of tools used are the oscilloscopes, tools that measure signals and plot them in a graphically understandable way. We have a…
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A deep dive into Single Pair Ethernet
Building an underwater sensor node with SPE and PoDL
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Unpopular Opinion: Don’t Use a Raspberry Pi for That
A Raspberry Pi is great if you have a need for which it excels. GPIO, extremely low power requirements, tight space constraints. But the Pi should not be the first thing you reach for when “U…
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Wooden Game Boy
You made me create a wooden Game Boy shell. Yes, you made me do it. After I got myself a CNC machine a while back I just made a wooden Game Boy cartridge to get to know the machine, but social media wanted more. So, I made a Game Boy out of walnut wood. Click the image to see the video on youtube.com. You can see the…
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Comparing Hobby PCB Vendors
An not-for-profit roundup of affordable PCB manufacturers. Originally published in 2023 and last updated January 2026.
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Apple's Pro Display XDR takes Thunderbolt 3 to its limit
I like Thunderbolt a lot. Mostly because USB's land of optional features is a mess which makes choosing a cable/peripheral difficult. With thunderbolt you have a single number to get right. And then you are supposed to be golden. However the idyll with Intel's interface took a hit when I tried to make sense of Apple's…
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Nvidia H100 GPUs: Supply and Demand
This post is an exploration of the supply and demand of GPUs, particularly Nvidia H100s.
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Nanofiche: Small Storage, for Forever
Nanofiche is an archival technology, designed to preserve knowledge forever.
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“csinc”, the AArch64 instruction you didn’t know you wanted
After a long time of not publishing anything and being passive about doing any writing in this blog, I am coming back for … however many articles I can. Today I want to talk about an underrat…
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Raspberry Pi 5: available now
Raspberry Pi 5: available now! We’ve been excited to see the response of early users to Raspberry Pi 5, and can’t wait to see what you do once you get your hands on it.
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The machines of Tatjana van Vark
Building scientific instruments from the past, along with other technical projects.
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Which GPU(s) to Get for Deep Learning
Here, I provide an in-depth analysis of GPUs for deep learning/machine learning and explain what is the best GPU for your use-case and budget.
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The Mysterious 50 Ohm Impedance: Where It Came from and Why We Use It (2021)
50 Ohm impedance became the standard impedance used in RF transmission lines long ago, but it is still useful today and is a standard reference impedance used in test equipment.
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M3 Macs: there's more to performance than counting cores
A look at some of the factors determining the performance of new M3 chips compared to the M1 and M2 versions, and how not to compare them.
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Ode to the M1
It is not often I am blown away by a piece of hardware. My Hall of Fame features the 1991 Super Nintendo, the 1995 3dfx1, and the 2010 Intel's Serie 520 SSD [1] . This past month my 2021 MacBook Pro M1 [2] joined the club.
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ARRL hails FCC action to remove symbol rate restrictions
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
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Hardening cellular basebands in Android
Posted by Ivan Lozano and Roger Piqueras Jover Android’s defense-in-depth strategy applies not only to the Android OS running on the Appl...
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C++17’s useful features for embedded systems
A community and blog for embedded software makers
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Moving my PC into my rack in a 2U case
This week I finally moved my gaming/Linux PC into my little office rack—it's that 2U box above the UPS at the bottom: I remembered seeing Linus Tech Tips' 4U build in a video a couple years ago—but he has a full 42U rack in his basement. I don't have that much space—just 2U (technically 3U if I wanted) in my little…