2941
The first amateur radio station on the moon
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,806 posts.
Hardware & Electronics
Any year
2942
Fuzzing PCI express: security in plaintext
Google recently launched GPUs on Google Cloud Platform (GCP), which will allow customers to leverage this hardware for highly parallel workloads. These GPUs are connected to our cloud machines via a variety of PCIe switches, and that required us to have a deep understanding of PCIe security.
2943
They don't make 'em like that any more: the 3.5mm headphone jack socket
What’s the real reason that cellphone manufacturers stopped fitting this simple, robust connector?
2944
The Genius of RISC-V Microprocessors
How the instruction set for RISC-V processors has been designed cleverly for both simplicity and high performance.
2945
This PCB is brought to you by Fable 5
An experiment to design a cute PCB (without touching any tools) in plain English
2946
Fairphone 6 wide camera experimental Linux support
The Fairphone 6 is an interesting target for mainline Linux and postmarketOS for a few reasons:
2947
Flow Browser Preview on the Raspberry Pi 400
We’re very excited to be making a Flow preview available for public download on the Raspberry Pi 400.
2948
Microsoft opens MIDI 2.0 repo
The updated MIDI 2.0 specifications have been released, so we're opening the repo to the public.
2949
The Whitworth Three Plates Method (2017)
A visual step-by-step guide to Joseph Whitworth’s three-plate method for creating very flat reference surfaces.
2950
Tihle: A new emulator targeting TI graphing calculators
Today I’m publishing tihle, a new emulator targeting TI graphing calculators (currently only the 83+, but maybe others later). There’s rather a lot to say about it, but here I will discuss the motivation for a new emulator and the state of the art followed by technical notes on the design and initial development…
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The World's current and next Innovations depend on a single country, Taiwan
The world’s current and next innovations depend on a single country: Taiwan. It’s probably one country you might never hear about, or perhaps confuse with its neighbor, Thailand, or even think it’s a part of China. I’ve been living in Taiwan for 3+ years, and am baffled that I never pay attention to semiconductors…
2953
Stanford engineers' breakthrough heralds super-efficient light-based computers
Light can transmit more data while consuming far less power than electricity, and an engineering feat brings optical data transport closer to replacing wires.
2954
Tutorial On Designing/Building A PCB (Using FOSS)
Learn electronics by working through real designs, builds, and stubborn bugs at the bench. You’ll get practice making your own boards and understanding what they do when you power them up.
2955
Zusie – My Relay Computer
The story behind Zusie begins in May 2008, when I went on vacation to Berlin for a few days with a friend. As is my habit, I looked for interesting technical or scientific sites to visit, and the main thing to visit was the Technische Museum. I think I spent a full day day there, to the expressed dismay of my friend…
2956
I.MX7 M4 Atomic Cache Bug
Hardware Bugs can be frustrating, as they are likely the last place you would expect a bug. Unfortunately, they can and do happen. Most likely every CPU has a list of erratas. This post outlines th…
2957
Hacking a PC sound card to read temperature and liquid level sensors
Measure with Music: How to Read Analog Sensors Using a PC Sound Card
2958
Whatever happened to cheap eReaders?
Way back in 2012, The Guardian reviewed an eInk reader which cost a mere £8. The txtr beagle was designed to be a stripped-down and simplified eReader. As far as I can tell, it never shipped. There were a few review units sent out but I can't find any evidence of consumers getting their hands on one. Also, that £8…
2959
The next generation of AirPods
The third-generation AirPods deliver powerful audio features and a magical wireless headphone experience in a new contoured design.
2960
Triple Flaw in Nest's Dropcam
Secure your Internet-connected home and family devices with advanced IoT solutions from Bitdefender Smart Home Cybersecurity.
2961
2962
Exway doesn't care about USB-C conformity
Eric Park's website
2963
New iMacs run fans at full on all drives other than Apple supplied...
Hard drives fail. With the new iMac from Apple, when the main drive does fail, there is no DIY replacement option available.
2964
TI-83 Plus One More
Repair of a TI-83 Plus calculator with a non-working screen
2965
Turning an iPad Pro into a classic Macintosh
I’ve started work on the next in my 1-bit Woodblocks series: “Tekagami” (Ito Shinsui’s “Hand Mirror”). So it’s a good time to talk about how I turned an iPad...
2966
Drone hijacked by UT hackers with $1,000 spoofer
The Sophos Blog
2967
How x86_64 Addresses Memory
Update 2025-03-05 : @jxu has shared a collection of simplified examples that are even easier to follow than the original ones in this post.
2968
Durability: NVMe Disks
Durability is the guarantee that data can be accessed after a failure. It seems like this should be very simple: either your system provides durable data storage, or it does not. However, durability is not a binary yes/no property, and instead should be defined as the kinds of failures you want your data to survive…
2969
Build your own drink mixing robot
I built a robot that mixes drinks named Bar Mixvah. It utilizes an Arduino microcontroller switching a series of pumps via transistors on the physical layer, and the MEAN stack (MongoDB, Express.js, Angular.js, Node.js) and jQuery for the frontend and backend. In this post, I’ll teach you how I made it. You can follow…
2970