511
Python client for the $20 Colmi R02 smart ring
Open source python client to read your data from the Colmi R02 family of Smart Rings. 100% open source, 100% offline.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 3,044 posts.
Hardware & Electronics
Any year
512
Google's First Tensor Processing Unit: Architecture
Looking in more detail at Google's first Tensor Processing Unit
513
514
Building my Own Laptop
We are building an open laptop, with some wacky features in it for hackers like me.
515
Phyllotaxis: An audio-reactive LED display
One of nature's beautiful patterns captured in dancing lights
516
517
Everything I Know About SSDs
March 2019: Introduction: I started writing this rather long page for my own benefit, when I acquired a upgrade from my old 2006 Win 8 250 gb HDD PC to a Dell Optiflex 3010 with a 128 gb SSD. I never used more than 30 or 40 gb of the system drive, and I'm not a gamer or an avid film or music collector either. Not on a…
518
Bypassing Bitlocker using a cheap logic analyzer on a Lenovo laptop
Have you ever been told that the company’s data on laptops is protected thanks to BitLocker? Well it turns out that this depends on BitLocker’s configuration…
519
Zenreader: A 4.7" E-Ink RSS Reader
I have been long wanting a PDA of sorts with an E-Ink screen that allows me to read stuff on the Internet without eye strains. But the Kindle really sucks as a newsreader device because the experimental browser never works correctly.
520
Arduino published updated terms and conditions: no longer an open commons
The maker community worried Qualcomm would kill the Arduino ethos. New T&Cs confirm the community's worst fears. Here's what's at stake, what Qualcomm got wrong, and what might still be salvaged.
521
Building a Hackintosh Pro
If Apple built a compact, upgradeable tower that could house one or two full-size GPUs, I'd have bought it without hesitation. Sadly, that machine doesn't exist. There's no doubt that Apple has a refresh for the desktop market in the works. I just don't know
522
I'm a USB-C Maximalist
My wife and I recently went on a 7 week holiday around Europe. Although we each took a massive backpack, we wanted to travel fairly lightly. I took a single universal power brick. This little unit was all I needed to charge my various gadgets. It has a hefty USB-C PD (Power Delivery) port for rapid charging of my…
523
How to build a $20B semiconductor fab
For the last several decades, one avenue of technological progress has towered over nearly everything else: semiconductors.
524
M1 Macs have another hidden boot mode
Apple has revealed the hidden Fallback Recovery OS mode available on M1 Macs. How to enter and use it, and why it’s another big plus.
525
Zimaboard: The closest thing to my dream home server setup
I gave in to my impulses and bought myself a small single board computer to be my power-efficient home server, here's how it went.
526
Building an E-Ink Laptop
A series where I’m documenting my process of designing and building an e-ink laptop.
527
Building a NAS
I’ve been fascinated by high-volume, fault-tolerant data storage systems for a long time. I started my data storage setup in earnest with a 4-disk RAID 5 array on an ARC-1210 controller installed in my daily-driver Windows desktop. When that array inevitably filled up, I added another array on a second ARC-1210. That…
528
Which GPU(s) to get for deep learning
Here, I provide an in-depth analysis of GPUs for deep learning/machine learning and explain what is the best GPU for your use-case and budget.
529
Why Android can't use CDC Ethernet (2023)
A detective story with a silly ending
530
Can Doom Run It? An Adding Machine in Doom
For decades, we've asked ourselves "Can it run Doom?". Now we can finally make the ultimate punchline: "Can Doom run it?"
531
TP-Link Tapo C200: Hardcoded Keys, Buffer Overflows and Privacy
Hi friends and welcome to the last post for this year! Whenever someone asks me how to get started with reverse engineering, I always give the same advice: buy…
532
RuBee
I have at least a few readers for which the sound of a man's voice saying "government cell phone detected" will elicit a palpable reaction. In Department of Energy facilities across the country, incidences of employees accidentally carrying phones into secure areas are reduced through a sort of automated nagging. A…
533
How is the free firmware for the Raspberry progressing?
Raspberry Pi computers require a piece of non-free software to boot — the infamous raspi-firmware package. But for almost as long as there has been a Raspberry Pi to talk of (this year it turns 10 years old!), there have been efforts to get it to boot using only free software. How is it progressing?
534
The Raspberry Pi can boot off NVMe SSDs now
When the Compute Module 4 was released (see my CM4 review here), I asked the Pi Foundation engineers when we might be able to boot off NVMe storage, since it was trivially easy to use with the exposed PCIe x1 lane on the CM4 IO Board. The initial response in October 2020 was "we'll see". Luckily, after more people…
535
Gentoo Tesla – T2 Edition
Location Voiture Electrique à la journée, le week-end ou au mois. Dès 50€/jour. Oubliez les agences de location. Assurance tous risques.
536
I am giving up on Intel and have bought an AMD Ryzen 9950X3D
The Intel 285K CPU in my high-end 2025 Linux PC died again! 😡 Notably, this was the replacement CPU for the original 285K that died in March, and after reading through the reviews of Intel CPUs on my electronics store of choice, many of which (!) mention CPU replacements, I am getting the impression that Intel’s…
537
Starlink Is a Big Deal
Today, I watched a SpaceX Falcon 9 rocket leave Cape Canaveral and deliver 60 small Starlink satellites to Low Earth Orbit (LEO) on the Starlink L3 mission.…
538
539
Hacking Portable Air Conditioners
I bought a couple EdgeStar AP14001HS portable air conditioners in April 2020, since I expect to spend most of the Summer at home. I'm not able to use window A/Cs here, though that would be the obvious choice for efficiency because all the hot parts remain outside.
540
ECC RAM on AMD Ryzen 7000 Desktop CPUs
Getting ECC memory working on desktop CPUs.