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Using the railway network as a flatbed scanner
an adventure in image processing and taking very wide photographs (blog post; 4,600 words)
Topics /
Hardware & Electronics
The most popular blog posts about hardware & electronics on Hacker News. 3,044 posts.
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Where are the robotic bricklayers?
When researching construction, you invariably discover that any new or innovative idea has actually been tried over and over again, often stretching back decades.
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Reverse engineering my e-scooter and rewriting the firmware in Rust
I reverse engineered the hardware and firmware of my Egret GT E-Scooter. I describe how I got in, analysed communication between components, and reverse engineered firmware. I speak about writing custom firmware for the display unit.
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Building the mouse Logitech won't make
Modifying the MX Ergo trackball mouse to fix its micro-USB charging, loud switches, and bloated software issues.
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How to build a 50k ton forging press
In the late 1940s and early 1950s, a revolution took place in American military aircraft design.
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TPU Deep Dive
I've been working with TPUs a lot recently and it's fun to see how they had such different design philosophies compared to GPUs.
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Video Pros Moving from Mac to Windows for High-End GPUs
But as good as that juiced up Mac Pro Tower is today, I know at some point, the time will have to come to an end, simply because Apple hasn’t built a PCIe-based system in many years now. As my article described, the alternative Mac Pro trashcan is simply not a solution for our needs, imposing too many limitations…
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My iPhone 8 Refuses to Die: Now It's a Solar-Powered Vision OCR Server
How I turned an old iPhone 8 into a solar-powered OCR server using Apple's Vision framework. Running 24/7 off-grid, processing thousands of images.
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Microcontrollers Not Allowed – Trolling a college instructor
If you attempt this project, your classmates will think you're a nerd. You'll likely wind up getting your head flushed and/or balls greased.
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RP2040 Doom
The Making of RP2040 Doom
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Gentle introduction to GPUs inner workings
This article summarizes some lower level aspect of how GPU executes. Although GPU programming is not that complicated when compared to CPU, it also doesn’t match to what hardware is doing exactly. The reason is that we can’t just program GPU without some API, which is an abstraction over its inner workings. Since few…
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The New Essential Guide to Electronics in Shenzhen
Some might remember a book I released in 2016, “The Essential Guide to Electronics in Shenzhen”. A lot has changed in the world since then, and Shenzhen is no exception.
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Lessons from Running a Small-Scale Electronics Factory in My Guest Bedroom
After assembling over 200 Telephreak badges by hand for DEFCON 26 (and taking *way* longer to accomplish it than I estimated) I figured I should document some of the lessons that I learned along the way – from initial design to finished product. The subject of many of the examples of the right way to […]
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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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Why it's so hard to build a jet engine
Civilization's toughest technical challenges are those that require extraordinary (and constantly improving) performance to be delivered at a low cost.
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Building my own solar power system
Well it happened. PG&E has dropped the facade of necessary rate increases because of system upgrades, and they have come out and said what…
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Testing the F-35C Tailhook
Welcome to the blog. As a way to kick things off, here’s a single-page version of my thread on the F-35C tailhook.
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The ASUS Tinker Board is a compelling upgrade from a Raspberry Pi 3 B+
I've had a long history playing around with Raspberry Pis and other Single Board Computers (SBCs); from building a cluster of Raspberry Pis to run Drupal, to building a distributed home temperature monitoring system with Raspberry Pis, I've spent a good deal of time testing the limits of an SBC, and also finding ways…
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An interactive-speed Linux computer made of only 3 8-pin chips
Dmitry.GR: Interactive-speed Linux on a tiny board you can easily build with only 3 8-pin chips
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Making USB devices – end to end guide to your first gadget
Introduction to implementing USB devices. Minimal overview of hardware and software with an example with STM32 microcontroller. Also contains an index to very detailed guides for more information.
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I love my GPD Micro PC
I bought two computers this year: a beefy Macbook Pro with M1 Pro and a GPD Micro PC.
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Amazon Echo Flex: Microphone mute button appears to be real and functional
Teardown and analysis of electronics. Integrated circuit design analysis.
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Homemade 6 GHz pulse compression radar
Designing a modern pulse compression radar that uses digital signal processing.