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Topics /
Hardware & Electronics
The most popular blog posts about hardware & electronics on Hacker News. 4,806 posts.
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I made a thing to help you make a thing out of a keypad
I do a lot of electronics projects in my spare time, and I tend to try to make reusable parts to save myself effort in the future. Because I have to order ingredients in certain quantities, I often wind up with more than I need for my project.
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I Made a Rubbish Clock
With separate plastic, metal, paper, and glass recycling, composting, and pick up of all the rest, knowing which days to put out which bins ...
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Build an Ioniser in Under $10
A Do it Yourself project to help remove dust particles in your room. A completely open-source hardware project which you can download and use for free.
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Gpiozero Flow
Back in 2015, I had the idea for gpiozero — a Python library for Raspberry Pi, making programming GPIO devices simpler by abstraction: instead of thinking about pin channels, voltages, pull-up resistors and rising or falling edges, we think about buttons being pressed and released, sensors...
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5 ways to reboot a PC. None of them reliable.
You'd think it'd be easy to reboot a PC, wouldn't you? But then you'd also think that it'd be straightforward to convince people that at least making some effort to be nice to each other would be a mutually beneficial proposal, and look how well that's worked for us. Linux has a bunch of different…
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Odroid-Go Review: An Affordable DIY Portable Game Console
Hardkernel, the hardware manufacturer behind powerful single-board computers (SBCs) including the Odroid XU4, offers the neat Odroid-Go kit. This portable do-it-yourself (DIY) game console provides a GameBoy-esque form factor for a mobile retro gaming experience. Learn more in this Odroid-Go review, from what it is to…
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Developer ports iOS core to non-Apple hardware
Reecently, I achieved one of the core milestones of my personal project, porting the Darwinkernel to the ARM architec...
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80386 Protection
I'm building an 80386-compatible core in SystemVerilog and blogging the process. In the previous post , we looked at how the 386 reuses one barrel shifter for all shift and rotate instructions. This time we move from real mode to protected and talk about protection .
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Logic, Before ICs
When integrated circuits were too expensive for common hobby use, we had to build digital logic out of discrete transistors.
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Lego logic gates and mechanical computing
randomwraith.com - LEGO, Beer & pastimes
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An IRC-Enabled Lawn Mower (2021)
IRC stands for Internet Relay Chat . Invented in the late 1980s, it's one of the oldest and most popular realtime chat protocols. Despite being over 30 years old, it's still actively developed, and hundreds of thousands of people still use it to chat every day.
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Commodore 64 BASIC inside a USB Connector
Tomu is a super cheap Open Source Hardware 24 MHz ARM computer with 8 KB of RAM and 64 KB of ROM that fits into your USB connector! Of course I had to put Commodore 64 BASIC on it, which can be accessed through the USB-Serial port exposed by the device.
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Reversing NvAPI to Programmatically Overclock Nvidia GPUs
After spending most of the past decade without a decent computer, all laptops with GPUs more able at toasting bread than proper gaming, I finally cracked the spare Bitcoin piggy-bank and built my d…
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Inside the 74181 ALU chip
What's inside a TTL chip? To find out, I opened up a 74181 ALU chip, took high-resolution die photos, and reverse-engineered the chip. 1 In...
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Delidded Intel I9-14900KS CT Scan
Welcome to LTT Labs - your go-to destination for all things tech. Explore comprehensive test results, insightful commentary, and the latest analysis in hardware.
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Origami-Inspired Phased Arrays Are Reshaping the Future of Antennas
Folding antennas into different shapes to create near infinite radiation patterns.
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The Curse of Soldered RAM
The trend for soldered on RAM in modern laptops is truely evil especially in these current trying times of shortage induced high prices. I normally run 2 laptops, one for personal stuff and one for…
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Amazon One – Palm recognition for Amazon Go
We’re always looking for ways to make our customers’ lives better, and one area where we’ve spent time innovating is the customer shopping experience in stores. Today, our physical retail team is excited to introduce a new innovation called Amazon One.
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How many Commodore 64 computers were really sold? (2011)
Nobody doubts that the C64 was the greatest selling single computer model of all time, it even made it into the Guinness Book of World Records, but nobody quite knows how many it really was: Most sources say 17 million, others say 22 or even 30 million. With a high degree of confidence, I can now…
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From SDR to 'Fake HDR': Mario Kart World on Switch 2
Nintendo's Switch 2, launched with Mario Kart World, suffers from inadequate HDR implementation despite industry standards. The game qualifies "fake HDR," using SDR-first methods that limit color and dynamic range. Developers must prioritize HDR from the outset to truly leverage its potential and enhance visual…
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Vodafone unveils prototype 5G network built on a Raspberry Pi computer
Vodafone today unveiled a prototype 5G network built on a credit card sized Raspberry Pi personal computer and an equally small, advanced silicon chipset. This industry-first concept will enable small businesses and households to extend 5G coverage and increase capacity according to their needs and to have their very…
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IBM PC 8088 replaced with a Motorola 68000
I was wondering what the IBM Personal Computer would have been like if they had chosen the Motorola 68000 instead of the Intel 8088, so I used my MCL86+ to emulate the 68000 and find out! The MCL86…
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Why TinyML is still so hard to get excited about
This week, I went to the tinyML Summit in Burlingame, Calif. TinyML, or running small machine learning models on constrained devices, is one of the most exciting technologies I’ve encountered. But it’s also the one most likely to put people to sleep when I talk about it. Using local computing to handle object or even…
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RISC-V Stumbling Blocks
Recently, I’ve started to explore RISC-V. I experienced the journey as pretty refreshing, particularly because I’ve been working on x86 low-level software almost exclusively for about 10 years.