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Building a panel out of e-ink electronic shelf labels
A blog post on building a panel with multiple electronic shelf labels (ESL).
New
The latest blog posts to take off on Hacker News. 3,045 posts.
Hardware & Electronics
Any year
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Meshtastic: A Review
The Meshtastic is my solarpunk dream—a cheap, encrypted, offgrid communicator. But the project is still in the alpha stages (and it shows).
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RISC-V based single board computers are getting there
When putting the Raspberry Pi Zero vs a MangoPi MQ Pro, who wins? Can the RISC-V D1 chip hold its own?
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Converting from the Game Gear to the Master System
Sometimes people ask me: “Nicole, how do you convert a Master System game to the NES?”, or some other combination of game consoles. And the answer is invaria...
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TI-83 Plus One More
Repair of a TI-83 Plus calculator with a non-working screen
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Hitachi Wood Plug Cutter Works Perfectly in Hand Held Drills (2013)
I had meant to post on this some time back and forgot. I don’t altogether like plug cutters much, but good quality ones work well in drill presses (pillar drill UK). It’s the drill press that’s the problem more than anything. Often when I need a plug
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Air Support in a Backpack: The Switchblade
In March 2022, it was reported that the United States was sending over some Switchblades to Ukraine.
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Building a fast all-SSD NAS on a budget
I edit videos non-stop nowadays. In a former life, I had a 2 TB backup volume and that stored my entire digital life—all my photos, family video clips, and every bit of code and text I'd ever written. Video is a different beast, entirely. Every minute of 4K ProRes LT footage (which is a very lightweight format…
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Why are McDonald’s Self Service Kiosks so hackable?
McDonalds in Australia do a decent cup of coffee. It’s not great but it’s consistently decent so I often start my day with a cup. Due to my travels around Australia in a decked out van I have seen how many McDonalds operate and just how many of
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Apple Silicon is an inconvenient truth
Link to: https://wormsandviruses.com/2022/07/a-burger-without-heinz/
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8-bit 64K 1802 computer with front panel and serial port in an Altoids tin
Once upon a time, microcomputers were simple and easy to understand. So simple in fact that a kid like me, with no computer experience whatsoever, could actually understand them, build them, program them, and put them to work in his very own projects!
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I Hacked My Car Guides: Creating Custom Firmware
Notice Note: As of 2022/10/25 the information in this series is slightly outdated. See Part 5 for more up to date information. I take no responsibility for any damages due to the information or steps provided on this site. The content is for educational purposes only. You modify your own car’s firmware at your…
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Picking up free lithium cells off the street and making them safe for use
This blog post reveals how you can salvage lithium cells from the many discarded, disposable vape devices that get littered in our towns and cities. With a pair of pliers and some bravery, I manage...
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Building a radio-controlled submarine with automatic depth control
In this post series I will explain the making of a radio-controlled submarine. I will go through the design, the building process, Python code, tests in water, and all the mistakes I made. Lots of …
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The 13-Inch MacBook Air
It’s taken decades of iterative refinement to get to this point — a nearly perfect laptop for nearly everyone.
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Rust on Espressif chips – 15-07-2022
Scott Mabin's blog
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A 74xx-Defined Radio (2021)
Video Appetizer TLDR I built a shortwave radio receiver from scratch using only cheap and easily available components, i.e. standard transistors, op-amps and 74xx logic chips. No typical radio part…
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RISC-V Linux on ESP32
I've been playing with the idea of running linux on ESP32 since the first days I've met its more robust module, the WROVER-B, on paper it se...
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My business card runs Linux
Dmitry.GR: My business card runs Linux (and Ultrix), yours can too. Details, kits, etc...
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Robertson vs. Torx screw drives (2021)
I’m going to get straight to the point and say that it’s time for Robertson screws to be retired and supplanted by Torx. This posting is to explain why and is partly motivated by lots o…
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My New Sony NW-A55 Walkman
A fun, small, affordable, and beautifully-crafted media player that’s easy to transfer files to, and sounds excellent.
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RISC-V is getting MSIs
Message signaled interrupts or MSIs describe a way to signal an interrupt without a dedicated interrupt request pin (IRQ). One of the most prevalent uses for MSIs is the PCI bus, and the PCI specification defines the MSI and MSI-X standards. The potential benefits may include: (1) reduced number of direct wires from…
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Why don't more people use throat mics?
Yes, *that* kind of microphone -- the kind that are most commonly known to be used by employees of the military industrial complex.
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BMW F Series Gear Selector, Part Two: Breakthrough
At the end of Part One , I found myself staring at this BMW F20 GWS ( Gangwahlschalter - gear selector switch - thanks to everyone who helped dig up the German name) that I wanted to adapt into an Electric Vehicle conversion.
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X-ray reverse-engineering a hybrid module from 1960s Apollo test equipment
In this blog post, I reverse-engineer a hybrid module that was used for ground-testing of equipment from the Apollo space program. But fir...
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BMW F Series Gear Selector, Part One: Failures
I'm overdue to write up some of my vague electric vehicle conversion project, so here's a small part of it.