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New
The latest blog posts to take off on Hacker News. 4,807 posts.
Hardware & Electronics
Any year
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PinePhone Beta
I am pleased to announce that pre-orders for the PinePhone BETA Edition will open on March 24. The PinePhone BETA Edition is powered by KDE Plasma Mobile and Manjaro Linux.
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Apple’s M1 processor and the full 128-bit integer product
If I multiply two 64-bit integers (having values in [0, 264)), the product requires 128 bits. Intel and AMD processors (x64) can compute the full (128-bit) product of two 64-bit integers using a single instruction (mul). ARM processors, such as those found in your mobile phone, require two instructions to achieve the…
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Jello 3D Printer (2013)
A while ago, a friend of mine turned 25 and held a fairly big birthday party. One of the things he wanted to serve were jello shots: basically little shot glasses of jello with alcohol mixed in. The consistency and sweetness makes for a pretty interesting drink, and he wanted to make 70 or so shots, at least one for…
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M.2 on a Raspberry Pi – The Tofu CM4 Carrier Board
Ever since the Pi 2 model B went to a 4-core processor, disk IO has often been the primary bottleneck for my Pi projects. You can use microSD cards, which aren't horrible, but... well, nevermind, they're pretty bad as a primary disk. Or you can plug in a USB 3.0 SSD and get decent speed, but you end up with a cabling…
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DIY microscope lenses on BMD pocket 6K camera
I was having fun lately with some normal macro photography and was curious if I somehow can use my fathers microscope lenses on my photo and film cameras. The idea is not new, a quick google search showed that it was indeed possible but you need a special adapter for these microscope lenses. The adapter is called “RMS…
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Reverse-engineering Rosetta 2 Part 1: Analyzing AoT files and the runtime
Apple announced that it would be moving from Intel processors to Arm-based Apple Silicon CPUs for Macs at WWDC 2020. The Apple Silicon-based Mac Book Air and Pro were released in October 2020 with great fanfare.
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Using Apple Silicon (M1) as a cloud engineer, two months in
In this article, Vlad shares his experience using the Apple M1 as a cloud engineer. He discusses the compatibility of various software, including D...
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Toyota Develops Packaged Fuel Cell System Module for Hydrogen Utilization
Toyota Motor Corporation (Toyota) has developed a product that packages a fuel cell (FC) system into a compact module and plans to begin selling it in the spring of 2021 or later. The new module will be easily utilized by companies that are developing and manufacturing FC products for wide variety of applications…
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Strange chip: Teardown of a vintage IBM token ring controller
IBM used some unusual techniques in its integrated circuits, and one of the most visible is packaging them in square metal cans. I've been...
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Mining Ethereum on M1 Mac GPU
I’ve had my M1 MacBook Air for a bit of time now, and I also recently started mining Ethereum. I can’t help asking myself: What’s Ethereum mining performance like on a M1 Mac?
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Building an E-Ink Laptop
A series where I’m documenting my process of designing and building an e-ink laptop.
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Booting the IBM 1401: How a 1959 punch-card computer loads a program
How do you boot a computer from punch cards when the computer has no operating system and no ROM? To make things worse, this computer req...
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Nintendo DS-TV-Out Restoration Project
How Instagram helps gamers build authority, attract sponsors, and grow a loyal community beyond the game.
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Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
In this guide, I will explain how to receive SMS messages and forward them to your Telegram account using Raspberry PI Zero W and Wireshare GSM hat. Python will be used to read SMS messages and forward them to Telegram Bot API. Messages will be listened to by Gammu SMS service and it will trigger the Python script…
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Teardown of a quartz crystal oscillator and the tiny IC inside
The quartz oscillator is an important electronic circuit, providing highly-accurate timing signals at a low cost. A quartz crystal has the...
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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.
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My Life in E-Ink
Collection of odds and ends relating to e-readers including personal reminisces Background # Reading has been a huge part of my life. The written word has had arguably more of an impact on my life than anything I have experienced in person. As a kid back in early 2000’s; this meant a lot of library trips and saving…
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We are starting to operate our CNC machines remotely
Explores how a CNC micro-factory adapted to remote operation using cameras, dashboards, and VPNs to overcome challenges like travel restrictions, improving…
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Radio Amateur Copies Signal from Mars-Orbiting Satellite
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
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Nvidia announces mining GPUs, cuts the hash rate of RTX-3060 in half
This Halloween week, GFN Thursday is delivering a fresh batch of gaming treats. Something wicked this blade comes. S-GAME’s Phantom Blade Zero launches on GeForce...
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Don’t format a drive of M1 Macs from recovery mode
Because it’s a real mess to reinstall Big Sur!