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Electronics Lab Bench Setup Guide
I have set up an electronics lab bench for all my hobby and product development projects. In this article, I will dive deep into every part of the setup and guide you through the structure, organiz…
Topics /
Hardware & Electronics
The most popular blog posts about hardware & electronics on Hacker News. 4,801 posts.
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Phased Array Microphone (2023)
A 192-channel phased array microphone, with FPGA data acquisition and beamforming/visualization on the GPU. Phased arrays allow for applications not possible with traditional directional microphones, as the directionality can be changed instantly, after the recording is made, or even be focused at hundreds of…
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Rental camera gear destroyed by the 2017 eclipse
We recently had quite a spectacle in the United States, with a Solar Eclipse reaching totality throughout a large portion of the United States. Being that this was the first solar eclipse passing…
274
Building a T1D smartwatch for my son from scratch
The software from this project has been ported to the new Pebble watch here . Source code for the Pebble watchface is available here .
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AMD to Acquire Xilinx
A AMD oferece soluções de computação adaptativa e de alto desempenho de liderança para promover IA de data center, PCs com IA, dispositivos de borda inteligentes, jogos e muito mais.
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Wireless Is a Trap
Over and over again, I’ve seen people fix some wireless-related problem and go “wow, I had no idea how much better this could be!" • Wireless protocols often silently operate in an extremely degraded state that makes them substantially worse than wired equivalents.
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Inside a low-budget consumer hardware espionage implant
The following analysis was performed on a S8 data line locator which replied to the hidden SMS command for version query ( *3646655* ) with:
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Bypassing regulatory locks, hacking AirPods and Faraday cages
How we bypassed Apple's regulatory restrictions, built a Faraday cage and enabled georestricted features on the Airpods Pro 2 for our grandparents.
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SSDs have become fast, except in the cloud
A blog by and for database architects.
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Bonsai 2 27B: Near-Lossless Compression in a 9x Smaller Footprint
Ternary Bonsai 2 27B retains 98.2% of Qwen3.8 27B benchmark performance in a 5.9GB footprint, with multimodal and agentic capabilities.
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Computer latency: 1977-2017
I've had this nagging feeling that the computers I use today feel slower than the computers I used as a kid. As a rule, I don’t trust this kind of feeling because human perception has been shown to be unreliable in empirical studies, so I carried around a high-speed camera and measured the response latency of devices…
283
The ReMarkable Streaming Tool v2: Elevating Remote Work Efficiency
In this article, I expose the new version of the streaming tool for my reMarkable tablet. Originally crafted in 2021, this tool allowed me to stream sketches during video calls. Aiming for more user-friendliness, I revamped the design to a clientless implementation. This articles describes the implementation with some…
284
How does a screen work?
From electron guns to tiny electric crystals - digital displays have always been the unsung hero of computing.
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I found a bug in Intel Skylake processors
Instructors of “Introduction to programming” courses know that students are willing to blame the failures of their programs on anything. Sorting routine discards half of the data? “That might be a Windows virus!” Binary search always fails? “The Java compiler is acting funny today!” More experienced programmers know…
286
Introducing the PineNote
This month brings news that many of you have been waiting years for - we’re introducing the PineNote, a high-end e-ink device based on the powerful Quartz64 single board computer. But the good news doesn’t end here, the PinePhone keyboard has entered production, developers have begun work on PinePhone’s back cases…
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Making My Own USB Keyboard from Scratch
A few months ago, I completed a project to build an entire USB keyboard from scratch. This included electronic circuit design, PCB design, firmware coding, CAD design, assembly and usage. The final result is my daily driver work keyboard, which I affectionately call “KeeBee”:
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Why three prongs?
Why do AC cords need three prongs? If there is no positive or negative in AC systems, why do we have HOT and NEUTRAL? I attempt to shed light on some of these mysteries.
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A DIY M&Ms and Skittles sorting machine
This project, the M&Ms and Skittles sorting machine, was on my to-do list for a long time. I finally managed to complete the project after working on it for several months in my free time. The machine uses an Arduino microcontroller, stepper motors, an RGB colour sensor and 3D-printed parts to sort several types of…
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No I don't want to turn on Windows Backup with One Drive
Microsoft is doing everything in its power to alienate users. When it's not enshittification, it's user hostility. You can't even dismiss forced reminders.
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Running local models on an M4 with 24GB memory
Experiments with getting usable outputs out of local models on a standard Macbook
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Amazon reveals first color Kindle, new Kindle Scribe, and more
Our e-reader lineup also features a reimagined Kindle Scribe and the fastest Kindle Paperwhite ever.
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Using a "proper" camera as a webcam
It’s 2022, so many of us now have 2 years experience of online meetings. My experience is that the better that I can see and hear someone in an online call, the more natural the conversation feels. Put another way, I think one does a courtesy to the other person by improving the quality of how you appear in a video…
299
Crazy Thin ‘Deep Insert’ ATM Skimmers
A number of financial institutions in and around New York City are dealing with a rash of super-thin “deep insert” skimming devices designed to fit inside the mouth of an ATM’s card acceptance slot. The card skimmers are paired with tiny pinhole cameras that are cleverly disguised as part of the cash machine. Here’s a…
300
Dissecting the Apple M1 GPU, Part II
Less than a month ago, I began investigating the Apple M1 GPU in hopes of developing a free and open-source driver. This week, I’ve reached a second milestone: drawing a triangle with my own open-source code. The vertex and fragment shaders are handwritten in machine code, and I interface with the hardware via the…