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The most popular blog posts about hardware & electronics on Hacker News. 3,045 posts.

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1383

Retro Compaq LTE Laptop Powered by Raspberry Pi

A while ago a came across an old Compaq LTE 286 laptop. When they were first released around 1989, these PCs were somewhat groundbreaking because they were the first to be compact enough to resemble the “notebook” form factor that we take for granted today. Unfortunately this particular unit was pretty much beyond…

1393

Running Julia bare-metal on an Arduino

I don't really have much experience with microcontrollers. I've played around with some arduinos before and the main entry point for my home network is a Raspberry Pi, but that's about it for recent experience. I did take a single course on microcontrollers a few years back though. I am fascinated by them - they're…

1400

A floppy-disk Walkman using a Raspberry Pi

I have built the most inconvenient way of playing music! It is lo-fi awfulness and cyberpunk grungy. Thanks! I hate it! Ingredients Raspberry Pi USB floppy drive Audio Cable / Headphones USB Battery WHY?!?! As I discussed yesterday, it's possible to fit half an hour of speech on a single floppy disk. The best band in…

1402

Raspberry Pi KVMs Compared: TinyPilot and Pi-KVM v3

In a strange coincidence, the authors of TinyPilot and Pi-KVM both emailed me within a week of each other and asked if I'd be interested in one of their KVM devices. Michael Lynch, founder of Tiny Pilot, said he'd used some of my Ansible work in building the TinyPilot update system, and Maxim Devaev, of Pi-KVM, liked…

1405

Two Weeks Until Tapeout

Chronicles of a bad idea. Or how I designed a systolic array with in-silicon debug infrastructure from scratch in under two weeks, and taped it out on Global Foundry 180 nm though a Tiny Tapeout experimental shuttle.