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Hardware & Electronics

The most popular blog posts about hardware & electronics on Hacker News. 463 posts.

2024
70

Reverse engineering a car key fob signal

I’ve had the curiosity to explore radio communication protocols for a few years now, ever since I’ve started fiddling around with an RTL-SDR dongle. I always had the goal of figuring out how data is transmitted in remote controls (car key fobs particularly), trying replay attacks, and other possible attack vectors.

73

Carpentopod: A Walking Table Project

Back in 2008, I wrote some software for fun to generate various optimized walking mechanisms. And when I also picked up some electronics and wood working skills in more recent years, I was able to turn one of these mechanisms into an actual wireless walking wooden coffee table: the Carpentopod. This post briefly…

75

Introducing Copilot+ PCs

An on-demand recording of our May 20 event is available. Today, at a special event on our new Microsoft campus, we introduced the world to a new category of Windows PCs designed for AI, Copilot+ PCs. Copilot+ PCs are the fastest, most intelligent Windows PCs ever built. With powerful new silicon capable of an…

76

Tracker Beeper (2022)

A week ago, I finally got round to implementing an idea I’d been toying with for years: what if your computer made a little bit of noise every time it sent data to Google? From studying logs, I’d long known just how many sites send all your visits and clicks to (at least) Google, but a log that you have to manually…

81

1/25-scale Cray C90 wristwatch

Welcome to the latest edition of my on-going series in Cray-related computational necromancy. This was another just-for-fun project. Over the many years Andras and I have been working on our Cray revival efforts, there has always been a big lag between our available software (and Andras’ amazing simulator ) and my…

84

Intel Honesty

The best way to both save Intel and have leading edge manufacturing in the U.S. is to split the company, and for the U.S. government to pick up the bill via purchase guarantees.

89

Breaking Free from DRM: Hacking My Air Purifier

I searched the web for a deal on a decent air purifier and the Xiaomi 4 Pro seemed to meet all my requirements. The filter size, scheduler and air volume ticked all the boxes. I set it up and thought nothing of it until last week my room was lit with the ‘ 0% remaining ’ replace filter warning. I had set my unit up to…