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Hardware & Electronics

The most popular blog posts about hardware & electronics on Hacker News. 326 posts.

2025
272

I hacked my clock to control my focus

I often get distracted. I obviously don’t like it. So I decided to turn my computer’s clock into a constant reminder to help me focus. Implementation This hack requires: Ubuntu with GNOME desktop environment The Panel Date Format extension A simple bash script 1. Install the Panel Date Format extension # If you don't…

279

Passive Microwave Repeaters

One of the most significant single advancements in telecommunications technology was the development of microwave radio. Essentially an evolution of radar, the middle of the Second World War saw the first practical microwave telephone system. By the time Japan surrendered, AT&T had largely abandoned their plan to…

289

Not all OCuLink eGPU docks are created equal

I recently tried using the Minisforum DEG1 GPU Dock with a Raspberry Pi 500+, using an M.2 to OCuLink adapter, and this chenyang SFF-8611 Cable. After figuring out there's a power button on the DEG1 (which needs to be turned on), and after fiddling around with the switches on the PCB (hidden under the large metal…

290

YouTube audio quality – How good does it get? (2022)

You Tube is clearly used by a very large number of people. In general, they will be interested in watching videos of various types of content. One specific purpose is that it gets used to distribute, and make people aware of, audio recordings. A conversation on the “Pink Fish” webforum devoted to music and audio set…

292

The Arduino Uno Q is a weird hybrid SBC

The Arduino Uno Q is... a weird board. It's the first product born out of Qualcomm's buyout of Arduino. It's like if you married an Intel CPU, and a Raspberry Pi RP2040 microcontroller—oh wait, Radxa's X4 did that. Arduino even tried it before with their old Yún board, which had Linux running on a MIPS CPU, married to…

294

Resizeable Bar Support on the Raspberry Pi

While not an absolute requirement for modern graphics card support on Linux, Resizeable BAR support makes GPUs go faster, by allowing GPUs to throw data back and forth on the PCIe bus in chunks larger than 256 MB. In January, I opened an issue in the Raspberry Pi Linux repo, Resizable BAR support on Pi 5. Unlike most…