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https://hackaday.com/2024/04/29/var-is-ruining-football-and-tech-is-ruining-sport/
VAR Is Ruining Football, And Tech Is Ruining Sport
Lewin Day
[ "Current Events", "Featured", "Original Art", "Slider" ]
[ "assessment", "football", "technology", "var" ]
https://hackaday.com/wp-…04/VAR.jpg?w=800
The symbol of all that is wrong with football. Another week in football, another VAR controversy to fill the column inches and rile up the fans. If you missed it, Coventry scored a last-minute winner in extra time in a crucial match—an FA Cup semi-final. Only, oh wait—computer says no. VAR ruled Haji Wright was offside...
84
41
[ { "comment_id": "6754421", "author": "Ostracus", "timestamp": "2024-04-29T14:06:58", "content": "“Always right”+”$$$”==where we are.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6754428", "author": "Ewald", "timestamp": "2024-04-29T14:18:26", "co...
1,760,371,933.185134
https://hackaday.com/2024/04/29/farewell-mfj/
Farewell MFJ
Al Williams
[ "News" ]
[ "ham radio", "mfj" ]
https://hackaday.com/wp-…04/mfj.png?w=800
We were sad to hear that after 52 years in operation, iconic ham radio supplier MFJ will close next month. On the one hand, it is hard not to hear such news and think that it is another sign that ham radio isn’t in a healthy space. After all, in an ideal world, [Martin Jue] — the well-known founder of MFJ — would have ...
35
18
[ { "comment_id": "6754362", "author": "CJay", "timestamp": "2024-04-29T11:27:49", "content": "Back in the days when Heahtkit shut down there were a lot of competitors to fill the gap left.MFJ occupy a larger space with a wider range of goodies so their closure will leave ahugegap in the market and I’...
1,760,371,932.784993
https://hackaday.com/2024/04/29/diy-passive-radar-system-verifies-ads-b-transmissions/
DIY Passive Radar System Verifies ADS-B Transmissions
Bryan Cockfield
[ "Radio Hacks" ]
[ "ads-b", "aircraft", "antenna", "passive radar", "radar", "radio", "reference", "sdr", "software-defined radio", "yagi" ]
https://hackaday.com/wp-…r-main.png?w=800
Like most waves in the electromagnetic spectrum, radio waves tend to bounce off of various objects. This can be frustrating to anyone trying to use something like a GMRS or LoRa radio in a dense city, for example, but these reflections can also be exploited for productive use as well, most famously by radar. Radar has ...
5
2
[ { "comment_id": "6754490", "author": "alialiali", "timestamp": "2024-04-29T16:38:56", "content": "multilaterization is also pretty cool (MLAT) as used to track aircraft that doesn’t report location to supplement ADS-Bhttps://skybrary.aero/articles/multilateration", "parent_id": null, "depth"...
1,760,371,933.057791
https://hackaday.com/2024/04/28/ai-can-now-compress-text/
AI Can Now Compress Text
Jenny List
[ "Artificial Intelligence" ]
[ "llama", "text compression" ]
https://hackaday.com/wp-…atured.jpg?w=800
There are many claims in the air about the capabilities of AI systems, as the technology continues to ascend the dizzy heights of the hype cycle. Some of them are true, others stretch definitions a little, while yet more cross the line into the definitely bogus. [J] has one that is backed up by real code though, a comp...
42
21
[ { "comment_id": "6754282", "author": "elwing", "timestamp": "2024-04-29T05:08:51", "content": "so big surprise, you can compress text more than using plain usual compression using AI, assuming you have some Gb free for a model that most likely needs to exist on both end? am I missing something there...
1,760,371,933.314763
https://hackaday.com/2024/04/28/hack-in-style-with-this-fallout-cyberdeck/
Hack In Style With This Fallout Cyberdeck
Julian Scheffers
[ "Cyberdecks" ]
[ "cyberdeck", "Fallout", "raspberry pi", "Teensy" ]
https://hackaday.com/wp-…ature.jpeg?w=800
There’s always an appeal to a cool-looking computer case or cyberdeck – and with authentic-looking Vault-Tec style, [Eric B] and [kc9psw]’s fallout-themed cyberdeck is no exception. The case looks like it came straight out of one of the Fallout games and acts the part: while (obviously) not capable of withstanding a di...
15
10
[ { "comment_id": "6754312", "author": "tyt56t7iu", "timestamp": "2024-04-29T07:46:13", "content": "looks ok, but how long this dev work?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6754322", "author": "pe7er", "timestamp": "2024-04-29T08:26:19", ...
1,760,371,933.362261
https://hackaday.com/2024/04/28/hackaday-links-april-28-2024/
Hackaday Links: April 28, 2024
Dan Maloney
[ "Hackaday Columns", "Hackaday links", "Slider" ]
[ "hackaday links" ]
https://hackaday.com/wp-…banner.jpg?w=800
Well, it’s official — AI is ruining everything. That’s not exactly news, but learning that LLMs are apparently being used to write scientific papers is a bit alarming, and Andrew Gray, a librarian at University College London, has the receipts. He looked at a cross-section of scholarly papers from 2023 in search of cer...
24
8
[ { "comment_id": "6754216", "author": "irox", "timestamp": "2024-04-28T23:21:45", "content": "“learning that LLMs are apparently being used to write scientific papers is a bit alarming”I am alarmed that you find it alarming! :)I worry that if you’re not using an LLM to word your paper you will be at ...
1,760,371,933.021261
https://hackaday.com/2024/04/28/you-can-run-basic-on-an-old-hp-4592-protocol-analyzer/
You Can Run BASIC On An Old HP 4592 Protocol Analyzer
Lewin Day
[ "Retrocomputing" ]
[ "basic", "HP", "protocol analyzer" ]
https://hackaday.com/wp-…63185.jpeg?w=800
What do you do when you find an ancient piece of test gear and want to have fun? Well, you can always try getting BASIC running on it, and that’s precisely what [David Kuder] did. The HP4952A Protocol Analyzer actually looks a lot like an old computer, even if it was never meant for general-purpose use. The heart of th...
10
3
[ { "comment_id": "6754179", "author": "Sohere", "timestamp": "2024-04-28T20:51:38", "content": "Forth would probably work better than basic on this memory constrained platform.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6754278", "author": "Joshua...
1,760,371,932.829651
https://hackaday.com/2024/04/28/corral-some-zippy-blue-flames-into-3d-printed-troughs/
Corral Some Zippy Blue Flames Into 3D Printed Troughs
Donald Papp
[ "Science" ]
[ "3d printed", "combustion", "flame", "moving flame" ]
https://hackaday.com/wp-…imized.gif?w=800
[Steve Mould] came across an interesting little phenomenon of blue flames zipping around a circular track. This led to diving down a bit of a rabbit hole about excitable mediums, ultimately leading him to optimize the shapes and come up with some pretty wild variations which he shows off in a video (also embedded below...
20
6
[ { "comment_id": "6754162", "author": "Kelly", "timestamp": "2024-04-28T19:18:02", "content": "Is that ever neat, using a flame front for delays and oscillators. Should try add a polarized HV electrode and see what that does. Flame detectors rely on the rectification properties of a flame. A moving d...
1,760,371,933.239408
https://hackaday.com/2024/04/28/boneblocker-is-a-big-led-wall-that-rocks/
Boneblocker Is A Big LED Wall That Rocks
Lewin Day
[ "LED Hacks" ]
[ "led", "LED wall", "WLED", "ws2812b" ]
https://hackaday.com/wp-…54396.jpeg?w=800
[Nick Lombardy] took on a job almost every maker imagines themselves doing at some point. He built a giant LED wall and he did a damn fine job of it, too. Introducing BoneBlocker. BoneBlocker is an 8 x 14 wall of glass blocks that lives at a bar called The Boneyard. Each block was given a length of WS2812B LED strip. 3...
3
2
[ { "comment_id": "6754123", "author": "Lewis Armistead", "timestamp": "2024-04-28T16:46:28", "content": "That’s great this got a write up. Iv played the game on the wall and it rules", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6754136", "author": "carl",...
1,760,371,932.964212
https://hackaday.com/2024/04/28/the-z80-is-dead-long-live-the-free-z80/
The Z80 Is Dead. Long Live The Free Z80!
Jenny List
[ "Parts" ]
[ "ASIC", "tinytapeout", "z80" ]
https://hackaday.com/wp-…atured.jpg?w=800
It’s with a tinge of sadness that we and many others reported on the recent move by Zilog to end-of-life the original Z80 8-bit microprocessor. This was the part that gave so many engineers and programmers their first introduction to a computer of their own. Even though now outdated its presence has been a constant ove...
28
7
[ { "comment_id": "6754072", "author": "Phil Ashby", "timestamp": "2024-04-28T11:42:38", "content": "So pleased to see that someone tried this and it fits! :)", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6754253", "author": "hjf", "timestamp"...
1,760,371,933.421303
https://hackaday.com/2024/04/28/train-a-gpt-2-llm-using-only-pure-c-code/
Train A GPT-2 LLM, Using Only Pure C Code
Donald Papp
[ "Artificial Intelligence", "Machine Learning", "Software Development" ]
[ "ai", "GPT", "GPT-2", "LLM" ]
https://hackaday.com/wp-…coding.jpg?w=800
[Andrej Karpathy] recently released llm.c , a project that focuses on LLM training in pure C, once again showing that working with these tools isn’t necessarily reliant on sprawling development environments. GPT-2 may be older but is perfectly relevant, being the granddaddy of modern LLMs (large language models) with a...
7
4
[ { "comment_id": "6754067", "author": "Reluctant Cannibal", "timestamp": "2024-04-28T10:31:02", "content": "Nice work, with plenty of documentation on training. Often these people focus too much on the tricky tech stuff when what I want to start with is ‘What does it do?’ ie deployment. I can see som...
1,760,371,933.460382
https://hackaday.com/2024/04/27/pi-pico-gets-a-zx-spectrum-emulator/
Pi Pico Gets A ZX Spectrum Emulator
Lewin Day
[ "Retrocomputing" ]
[ "emulator", "pi pico", "ZX Spectrum" ]
https://hackaday.com/wp-…247824.png?w=800
The Pi Pico is a capable microcontroller that can do all kinds of fun and/or useful things. In the former vein, [antirez] has ported a ZX Spectrum emulator to the Pi Pico. ZX2040, as it is known, is a port of [Andre Weissflog’s] existing ZX spectrum emulator. It’s designed for use on the compact embedded Pi Pico platfo...
9
7
[ { "comment_id": "6754076", "author": "Larry Bank", "timestamp": "2024-04-28T12:07:38", "content": "Now that it works, it’s time to optimize the code and clean up the upscaler to look less blocky. @antirez can ping me when he’s ready.", "parent_id": null, "depth": 1, "replies": [] }, ...
1,760,371,933.794835
https://hackaday.com/2024/04/27/wine-in-beverage-cans-had-a-rotten-egg-problem-until-now/
Wine In Beverage Cans Had A Rotten Egg Problem, Until Now
Donald Papp
[ "chemistry hacks", "Science" ]
[ "aluminum can", "beverage can", "rotten egg", "wine", "winemaking" ]
https://hackaday.com/wp-…133536.jpg?w=800
Aluminum beverage cans are used for all kinds of drinks, but when it comes to wine there are some glitches. Chief among them is the fact that canned wine occasionally smelled like rotten eggs. Thankfully, researchers have figured out why that happens, and how to stop it . How was this determined? As the image above hin...
70
9
[ { "comment_id": "6754019", "author": "David Kindltot", "timestamp": "2024-04-28T03:30:46", "content": "Perhaps move away from SO2 as a sterilizant and go on to other compounds to stabilize the wine. Sulfites are used traditionally but there are other options open to prevent that reaction with the c...
1,760,371,934.066065
https://hackaday.com/2024/04/27/rgb-led-hexaclock-doesnt-actually-light-up-the-night/
RGB LED HexaClock Doesn’t Actually Light Up The Night
Kristina Panos
[ "clock hacks" ]
[ "clock", "ESP8266", "RGB LEDs", "thicc wires" ]
https://hackaday.com/wp-…ck-800.jpg?w=800
Who says a clock can’t be both useful and beautiful? That seems to be the big idea behind the lovely little HexaClock from [Bulduper]. And boy, is it both. Probably the most important part of this well-illuminated clock is the light sensor, which allows it to adjust the brightness automatically. If you’re not into that...
11
5
[ { "comment_id": "6754005", "author": "paulvdh", "timestamp": "2024-04-28T02:03:39", "content": "That’s a nice clock.Small improvement, you put all the sections of LED strips in series (at 02:02 into the video). Long led strips tend to have a voltage drop due to the current to all the LED’s, and some...
1,760,371,933.954501
https://hackaday.com/2024/04/25/synthesis-of-goldene-single-atom-layer-gold-with-interesting-properties/
Synthesis Of Goldene: Single-Atom Layer Gold With Interesting Properties
Maya Posch
[ "Science" ]
[ "goldene", "graphene", "monolayer" ]
https://hackaday.com/wp-…raphic.jpg?w=800
The synthesis of single-atom layer versions of a range of atoms is currently all the hype, with graphene probably the most well-known example of this. These monolayers are found to have a range of mechanical (e.g. hardness), electrical (conduction) and thermal properties that are very different from the other forms of ...
16
9
[ { "comment_id": "6753537", "author": "Drone", "timestamp": "2024-04-26T03:43:27", "content": "Isn’t this done all the time? I think it is called Chemical Vapor Deposition (CVD).[1] Getting atom-scale deposition thickness is common.1. Chemical Vapor Deposition (CVD)https://en.wikipedia.org/wiki/Chemi...
1,760,371,933.852422
https://hackaday.com/2024/04/25/combadge-project-wants-to-bring-trek-tech-to-life/
Combadge Project Wants To BringTrekTech To Life
Tom Nardi
[ "Software Hacks", "Wearable Hacks" ]
[ "communicator badge", "home automation", "star trek" ]
https://hackaday.com/wp-…e_feat.jpg?w=800
While there’s still something undeniably cool about the flip-open communicators used in the original Star Trek , the fact is, they don’t really look all that futuristic compared to modern mobile phones. But the upgraded “combadges” used in Star Trek: The Next Generation and its various large and small screen spin-offs ...
16
9
[ { "comment_id": "6753505", "author": "rclark", "timestamp": "2024-04-26T01:16:52", "content": "“While there’s still something undeniably cool about the flip-open communicators used in the original Star Trek, the fact is, they don’t really look all that futuristic compared to modern mobile phones.”I ...
1,760,371,933.904237
https://hackaday.com/2024/04/25/a-smart-power-distribution-unit-for-home-automation/
A Smart Power Distribution Unit For Home Automation
Bryan Cockfield
[ "home hacks" ]
[ "ESP32", "home automation", "mqtt", "node-red", "pdu", "power distribution unit", "relay", "server", "server rack" ]
https://hackaday.com/wp-…u-main.jpg?w=800
Power distribution units, as the name implies, are indispensable tools to have available in a server rack. They can handle a huge amount of power for demands of intensive computing and do it in a way that the wiring is managed fairly well. Plenty of off-the-shelf solutions have remote control or automation capabilities...
28
13
[ { "comment_id": "6753439", "author": "Orzel", "timestamp": "2024-04-25T20:16:04", "content": "“the power consumption of each outlet individually as well”You misread your own source. It measures the total consumption, not each outlet. This is fairly obvious also from the header image.", "parent_i...
1,760,371,934.224022
https://hackaday.com/2024/04/25/the-myth-of-propellantless-space-propulsion-refuses-to-die/
The Myth Of Propellantless Space Propulsion Refuses To Die
Maya Posch
[ "Science", "Space" ]
[ "emdrive", "space propulsion" ]
https://hackaday.com/wp-…x435-1.jpg?w=768
In a Universe ruled by the harsh and unyielding laws of Physics, it’s often tempting to dream of mechanisms which defy these rigid restrictions. Although over the past hundred years we have made astounding progress in uncovering ways to work within these restrictions — including splitting and fusing atoms to liberate i...
106
31
[ { "comment_id": "6753416", "author": "Zynerji", "timestamp": "2024-04-25T18:44:33", "content": "I think this tech will eventually find some sort of way to emit pulsed, rotating fields that act like standing waves and allows the net thrust to be observed. Like an RF “smoke ring” antenna blowing out ...
1,760,371,934.383436
https://hackaday.com/2024/04/25/reverse-engineering-a-fancy-disposable-vape/
Reverse Engineering A Fancy Disposable Vape
Jenny List
[ "Reverse Engineering" ]
[ "disposable vape", "reverse engineering", "throwaway culture" ]
https://hackaday.com/wp-…atured.jpg?w=800
Many readers will be aware of the trend for disposable vapes, and how harvesting them for lithium-ion batteries has become a popular pastime in our community. We’re all used to the slim ones about the size of a marker pen, but it’s a surprise to find that they also come in larger sizes equipped with colour LCD screens....
26
8
[ { "comment_id": "6753390", "author": "fiddlingjunky", "timestamp": "2024-04-25T15:57:03", "content": "Even if you don’t find it by the side of the road, that’s a pretty good dev board for $20! 48MHz M0, 1MB flash (maybe some internal as well), screen, battery with charging circuitry, and coil driver...
1,760,371,934.49963
https://hackaday.com/2024/04/25/keebin-with-kristina-the-one-with-the-transmitting-typewriter/
Keebin’ With Kristina: The One With The Transmitting Typewriter
Kristina Panos
[ "Hackaday Columns", "Peripherals Hacks", "Slider" ]
[ "banana", "chording", "chording keyboard", "japanese", "morse code", "Yetman Transmitting Typewriter", "zoom", "zoom keyboard", "ZX Spectrum" ]
https://hackaday.com/wp-…Keebin.jpg?w=800
Image by [SrBlonde] via Hackaday.IO Okay, so we’re opening with more than just a keyboard, and that’s fine. In fact, it’s more than fine, it’s probably the cutest lil’ ZX Spectrum you’ll see today. [SrBlonde]’s wonderful micro Spectrum project has only the essential inputs, which makes for an interesting-looking keyboa...
5
5
[ { "comment_id": "6753361", "author": "Alphatek", "timestamp": "2024-04-25T14:04:35", "content": "It’s been a long time, but wasn’t QZIP more popular than QAOP on the spectrum? And the less said about games that used the cursors the better…", "parent_id": null, "depth": 1, "replies": [] ...
1,760,371,934.435325
https://hackaday.com/2024/04/25/chip-mystery-the-case-of-the-purloined-pin/
Chip Mystery: The Case Of The Purloined Pin
Dan Maloney
[ "Microcontrollers", "Parts" ]
[ "bond", "bug", "CH32V003", "design", "MISO", "MOSI", "RISC-V", "SCK", "SOP16", "spi" ]
https://hackaday.com/wp-…atured.jpg?w=800
Let’s face it — electronics are hard. Difficult concepts, tiny parts, inscrutable datasheets, and a hundred other factors make it easy to screw up in new and exciting ways. Sometimes the Magic Smoke is released, but more often things just don’t work even though they absolutely should, and no amount of banging your head...
29
12
[ { "comment_id": "6753320", "author": "willmore", "timestamp": "2024-04-25T11:27:41", "content": "Both the 8 pin and the 16 pin variants lack the SPI functionality. This is right there in the second page of the datasheet–it used to be on the first page, but pagination pushed it to the second. Both ...
1,760,371,934.577649
https://hackaday.com/2024/04/27/3d-printed-adapter-helps-you-eat-chicken-nuggets-on-the-highway/
3D Printed Adapter Helps You Eat Chicken Nuggets On The Highway
Lewin Day
[ "3d Printer hacks" ]
[ "3d printing", "adapter", "chick-fil-a", "chicken", "cupholder", "nuggets" ]
https://hackaday.com/wp-…720115.jpg?w=800
So often, we see 3D printers used to create some nifty little tool for a tricky little job. Maybe it’s to lock cams together for a timing belt change, or to work as a jig for soldering some complex device. However, some hacks are even simpler than that. [maker_guy] realized that eating nuggets in the car could be easie...
62
26
[ { "comment_id": "6753929", "author": "rclark", "timestamp": "2024-04-27T17:31:05", "content": "Neat idea. I like. Chick-fil-A is the best! As for eating in car. Do that a lot when being ‘driven’ from the airport when we arrive by one of our kids. Usually first stop is Chick-fil-A after a long f...
1,760,371,934.684195
https://hackaday.com/2024/04/27/welcome-back-voyager/
Welcome Back, Voyager
Elliot Williams
[ "Hackaday Columns", "News", "Slider", "Space" ]
[ "machine language", "newsletter", "voyager" ]
https://hackaday.com/wp-…r_feat.jpg?w=800
In what is probably the longest-distance tech support operation in history, the Voyager mission team succeeded in hacking their way around some defective memory and convincing their space probe to send sensor data back to earth again . And for the record, Voyager is a 46-year old system at a distance of now 24 billion ...
59
16
[ { "comment_id": "6753889", "author": "Robert", "timestamp": "2024-04-27T14:22:48", "content": "Amazing hack job by the support team! And what a testament to the engineers who designed Voyager!As a ham radio operator who builds my own gear from scratch, I am astonished that the meager signals transmi...
1,760,371,934.793909
https://hackaday.com/2024/04/27/photo-shows-real-spiders-from-mars/
Photo Shows Real Spiders From Mars
Jenny List
[ "Space" ]
[ "ESA", "mars", "spiders" ]
https://hackaday.com/wp-…atured.jpg?w=800
A cornerstone of early 1970s rock music culture was the British singer David Bowie in his Ziggy Stardust persona, along with his backing band the Spiders from Mars. You can tell that the PR department at the European Space Agency were beside themselves with glee at the opportunity to reference them when their Mars Expr...
16
7
[ { "comment_id": "6753858", "author": "Danjovic", "timestamp": "2024-04-27T12:11:06", "content": "Now we know why Spider Man clothes were mostly red.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6753938", "author": "make piece not war", "tim...
1,760,371,934.846023
https://hackaday.com/2024/04/27/how-additional-aerodynamic-drag-helped-make-gta-iii-work-on-ps2/
How Additional Aerodynamic Drag Helped MakeGTA IIIWork On PS2
Lewin Day
[ "Playstation Hacks", "Software Hacks" ]
[ "gaming", "Grand Theft Auto", "GTA", "playstation", "playstation 2" ]
https://hackaday.com/wp-…760857.jpg?w=800
The PlayStation 2 was a revelation when it hit the market in 2000, and yet by modern standards, it’s almost hopelessly weak. In fact, it’s so under-powered, Rockstar developers had to pull every trick in the book to make Grand Theft Auto III even work on the platform. The story comes to us from developer [Obbe Vermeij]...
17
2
[ { "comment_id": "6753808", "author": "CJay", "timestamp": "2024-04-27T08:18:29", "content": "If there’s one thing that’s been a constant over the decades I’ve been playing with consoles and working with computers it’s that devs will always use more resource than is available, in 25 years time I don’...
1,760,371,934.90883
https://hackaday.com/2024/04/26/nearly-destroyed-commodore-gets-new-life/
Nearly-Destroyed Commodore Gets New Life
Bryan Cockfield
[ "Retrocomputing" ]
[ "circuit board", "commodore", "pc-20", "pcb", "rebuild", "restoration", "retrocomputing" ]
https://hackaday.com/wp-…e-main.png?w=800
We all have our shiny, modern computers for interacting with the modern world, but at times they can seem a little monochromatic. Even the differences between something like macOS and Windows for the average user often boil down to which operating system loads an Internet browser. There are obviously more differences t...
10
9
[ { "comment_id": "6753815", "author": "biuro", "timestamp": "2024-04-27T08:44:13", "content": "Good luck reverse engineering a humble E8400.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6753887", "author": "Clancydaenlightened", "timestamp": "2024-04-...
1,760,371,934.957945
https://hackaday.com/2024/04/26/australian-library-uses-chatbot-to-imitate-veteran-with-predictable-results/
Australian Library Uses Chatbot To Imitate Veteran With Predictable Results
Lewin Day
[ "Machine Learning" ]
[ "ai", "chatbot" ]
https://hackaday.com/wp-…530614.png?w=800
The educational sector is usually the first to decry large language models and AI, due to worries about cheating. The State Library of Queensland, however, has embraced the technology in controversial fashion. In the lead-up to Anzac Day, the primarily Australian war memorial holiday, the library released a chatbot int...
16
8
[ { "comment_id": "6753779", "author": "TG", "timestamp": "2024-04-27T02:23:11", "content": "Also it wouldn’t be able to talk about anything interesting concerning war without reverting to the lobotomized HR lady AI that we all know and love", "parent_id": null, "depth": 1, "replies": [ ...
1,760,371,935.016928
https://hackaday.com/2024/04/26/keep-tabs-on-pc-use-with-custom-analog-voltmeter/
Keep Tabs On PC Use With Custom Analog Voltmeter
Bryan Cockfield
[ "computer hacks" ]
[ "computer", "cpu", "desktop", "display", "ESP32", "leds", "monitor", "pwm", "rgb", "usage", "voltmeter", "windows" ]
https://hackaday.com/wp-…r-main.jpg?w=800
With the demands of modern computing, from video editing, streaming, and gaming, many of us will turn to a monitoring system of some point to keep tabs on CPU usage, temperatures, memory, and other physical states of our machines. Most are going to simply display on the screen but this data can be sent to external CPU ...
8
5
[ { "comment_id": "6753772", "author": "paulvdh", "timestamp": "2024-04-27T00:45:58", "content": "Very similar to:https://hackaday.com/2023/12/04/mini-meters-monitor-microprocessor-maximization/", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6753821", ...
1,760,371,935.065331
https://hackaday.com/2024/04/26/build-your-own-class-e-musical-tesla-coil/
Build Your Own Class-E Musical Tesla Coil
Lewin Day
[ "Musical Hacks" ]
[ "plasma", "Singing Tesla coil", "tesla coil" ]
https://hackaday.com/wp-…901869.png?w=800
We’ve all seen a million videos online with singing Tesla coils doing their thang. [Zach Armstrong] wasn’t content to just watch, though. He went out and built one himself! Even better, he’s built a guide for the rest of us, too! His guide concerns the construction of a Class-E solid state Tesla coil. These are “underr...
10
6
[ { "comment_id": "6753775", "author": "Garth", "timestamp": "2024-04-27T01:26:15", "content": "Great project! Reminded me of the Nicholas Gage movie Sorcerer’s Apprentice and the Tesla coils playing music. Might be fun to scale it up.", "parent_id": null, "depth": 1, "replies": [] }, ...
1,760,371,935.283267
https://hackaday.com/2024/04/26/2024-home-sweet-home-automation-spray-bottle-turret-silences-barking/
2024 Home Sweet Home Automation: Spray Bottle Turret Silences Barking
Kristina Panos
[ "contests", "home hacks", "Raspberry Pi" ]
[ "2024 Home Sweet Home Automation", "barking", "dog", "heat seeking", "raspberry pi", "turret" ]
https://hackaday.com/wp-…et-800.jpg?w=800
Ah, dogs. They sure like to bark, don’t they? [rrustvold]’s dog likes to bark at the door when a package arrives. Or when someone walks by the house, or whenever the mood strikes, really. To solve the barking issue, at least near the front door, [rrustvold] built a spray bottle turret to teach the dog through classical...
13
4
[ { "comment_id": "6753720", "author": "David Given", "timestamp": "2024-04-26T19:07:53", "content": "I’m reminded of the cautionary tale of the annoyed birdwatcher who spent weeks building a machine-vision operated servo-driven automated turret which would detect squirrels stealing nuts from the bird...
1,760,371,935.239399
https://hackaday.com/2024/04/26/hackaday-podcast-episode-268-rf-burns-wireless-charging-sucks-and-barnacles-grow-on-flaperons/
Hackaday Podcast Episode 268: RF Burns, Wireless Charging Sucks, And Barnacles Grow On Flaperons
Dan Maloney
[ "Hackaday Columns", "Podcasts" ]
[ "Hackaday Podcast" ]
https://hackaday.com/wp-…ophone.jpg?w=800
Not necessarily the easy way to program an EPROM Elliot and Dan got together to enshrine the week’s hacks in podcast form, and to commiserate about their respective moms, each of whom recently fell victim to phishing attacks. It’s not easy being ad hoc tech support sometimes, and as Elliot says, when someone is on the ...
4
3
[ { "comment_id": "6753930", "author": "a_do_z", "timestamp": "2024-04-27T17:35:40", "content": "If we ever see it in use, we’ll know who’s behind the online alias BarnacleAnatomy.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6754506", "author": "Backinthe...
1,760,371,935.113633
https://hackaday.com/2024/04/26/this-week-in-security-cisco-mitel-and-ai-false-flags/
This Week In Security: Cisco, Mitel, And AI False Flags
Jonathan Bennett
[ "Hackaday Columns", "News", "Security Hacks", "Slider" ]
[ "apt", "cisco", "False Flag", "This Week in Security" ]
https://hackaday.com/wp-…rkarts.jpg?w=800
There’s a trend recently, of big-name security appliances getting used in state-sponsored attacks . It looks like Cisco is the latest victim, based on a report by their own Talos Intelligence . This particular attack has a couple of components, and abuses a couple of vulnerabilities, though the odd thing about this one...
3
2
[ { "comment_id": "6753692", "author": "Zoe Nagy", "timestamp": "2024-04-26T16:12:30", "content": "JS === BS", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6753694", "author": "Adrian", "timestamp": "2024-04-26T16:14:51", "content": "That’s a fun twi...
1,760,371,935.349698
https://hackaday.com/2024/04/26/microsoft-updates-ms-dos-github-repo-to-4-0/
Microsoft Updates MS-DOS GitHub Repo To 4.0
Tom Nardi
[ "News", "Retrocomputing", "Software Hacks" ]
[ "dos", "microsoft", "ms-dos", "open source" ]
https://hackaday.com/wp-…s_feat.png?w=800
We’re not 100% sure which phase of Microsoft’s “Embrace, Extend, and Extinguish” gameplan this represents, but just yesterday the Redmond software giant decided to grace us with the source code for MS-DOS v4.0 . To be clear, the GitHub repository itself has been around for several years, and previously contained the so...
30
14
[ { "comment_id": "6753609", "author": "hammarbytp", "timestamp": "2024-04-26T11:20:11", "content": "I’m holding out for MS-DOS 5. It looks greathttps://youtu.be/dmEvPZUdAVI?si=hIWforg-G0SDW9SLhttps://youtu.be/dmEvPZUdAVI?si=hIWforg-G0SDW9SL", "parent_id": null, "depth": 1, "replies": [ ...
1,760,371,935.51068
https://hackaday.com/2024/04/26/how-to-cast-silicone-bike-bits/
How To Cast Silicone Bike Bits
Jenny List
[ "Repair Hacks", "Transportation Hacks" ]
[ "3D printed mold", "casting", "mold", "motorcycle" ]
https://hackaday.com/wp-…atured.jpg?w=800
It’s a sad fact of owning older machinery, that no matter how much care is lavished upon your pride and joy, the inexorable march of time takes its toll upon some of the parts. [Jason Scatena] knows this only too well, he’s got a 1976 Honda CJ360 twin, and the rubber bushes that secure its side panels are perished. New...
23
11
[ { "comment_id": "6753603", "author": "BadAngel", "timestamp": "2024-04-26T09:58:59", "content": "The process is really instructive, and I’m think about other grommets on my bike (GSXR750) that are really hard to source.By the way this gaskets really look like another cushion than can be found on suz...
1,760,371,935.562991
https://hackaday.com/2024/04/25/ai-system-drops-a-dime-on-noisy-neighbors/
AI System Drops A Dime On Noisy Neighbors
Dan Maloney
[ "Machine Learning" ]
[ "ai", "arduino", "BLE Sense", "classification", "Edge Impulse", "ml", "model", "noise", "siren" ]
https://hackaday.com/wp-…onitor.png?w=800
“There goes the neighborhood” isn’t a phrase to be thrown about lightly, but when they build a police station next door to your house, you know things are about to get noisy. Just how bad it’ll be is perhaps a bit subjective, with pleas for relief likely to fall on deaf ears unless you’ve got firm documentation like th...
4
2
[ { "comment_id": "6753637", "author": "Panondorf", "timestamp": "2024-04-26T13:24:49", "content": "I once lived in an apartment in an area with such a bad reputation I couldn’t even get food delivered. For years it was all quiet, I couldn’t figure out why people thought it was so dangerous.The police...
1,760,371,935.441285
https://hackaday.com/2024/04/25/implantable-battery-charges-itself/
Implantable Battery Charges Itself
Bryan Cockfield
[ "chemistry hacks" ]
[ "battery", "implant", "oxygen", "pacemaker", "research", "sodium" ]
https://hackaday.com/wp-…y-main.jpg?w=800
Battery technology is the major limiting factor for the large-scale adoption of electric vehicles and grid-level energy storage. Marginal improvements have been made for lithium cells in the past decade but the technology has arguably been fairly stagnant, at least on massive industrial scales. At smaller levels there ...
18
7
[ { "comment_id": "6753275", "author": "Serghei", "timestamp": "2024-04-25T08:37:35", "content": "@Bryan Cockfield There you go! A good opportunity has arisen for the author to be the experimental subject in this matter! Go on, we praise the pioneers!", "parent_id": null, "depth": 1, "repl...
1,760,371,935.657648
https://hackaday.com/2024/04/24/sticky-situation-leads-to-legit-lego-hack/
Sticky Situation Leads To Legit LEGO Hack
Kristina Panos
[ "Lifehacks" ]
[ "hot glue", "lego", "LEGO DOTS", "mounting tape" ]
https://hackaday.com/wp-…ts-800.png?w=690
[samsuksiri] frequently uses a laptop and has an external drive to store projects. The drive flops around on the end of its tether and gets in the way, so they repurposed their old iPod pouch and attached it to the laptop lid with double-sided tape. You can guess how that went — the weight of the drive caused the pocke...
8
4
[ { "comment_id": "6753382", "author": "echodelta", "timestamp": "2024-04-25T15:37:16", "content": "The “adhesive” that’s good for dried flower arrangements. Chewed bubble gum holds much better in the long run. There are lots of real glues fast and slow setting all better than that arts and crafts stu...
1,760,371,935.607236
https://hackaday.com/2024/04/24/the-performance-impact-of-cs-final-keyword-for-optimization/
The Performance Impact Of C++’s `final` Keyword For Optimization
Maya Posch
[ "Software Development" ]
[ "c++", "optimisation", "software" ]
https://hackaday.com/wp-…slower.png?w=800
In the world of software development the term ‘optimization’ is generally reason for experienced developers to start feeling decidedly nervous, especially when a feature is marked as an ‘easy and free optimization’. The final keyword introduced in C++11 is one of such features. It promises a way to speed up object-orie...
22
14
[ { "comment_id": "6753236", "author": "RgC", "timestamp": "2024-04-25T03:51:02", "content": "> “final“ was placed on just about every interface.https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#c139-use-final-on-classes-sparinglyPeople should learn more best practices from more mature deve...
1,760,371,935.712259
https://hackaday.com/2024/04/24/downloading-satellite-imagery-with-wi-fi-antenna/
Downloading Satellite Imagery With A Wi-Fi Antenna
Bryan Cockfield
[ "Radio Hacks" ]
[ "dish", "parabolic", "reflector", "satellite", "wifi" ]
https://hackaday.com/wp-…e-main.png?w=800
Over the past century or so we’ve come up with some clever ways of manipulating photons to do all kinds of interesting things. From lighting to televisions and computer screens to communication, including radio and fiber-optics, there’s a lot that can be done with these wave-particles and a lot of overlap in their uses...
13
7
[ { "comment_id": "6753201", "author": "TG", "timestamp": "2024-04-25T00:02:14", "content": "I got that same dish, found it super cheap in maybe 2017. You can definitely put it to use like this, I’ll vouch for that", "parent_id": null, "depth": 1, "replies": [ { "comment_id":...
1,760,371,935.759872
https://hackaday.com/2024/04/24/more-mirrors-and-a-little-audio-mean-more-laser-power/
More Mirrors (and A Little Audio) Mean More Laser Power
Dan Maloney
[ "Laser Hacks" ]
[ "active", "Brewster's window", "Doppler", "He-Ne", "helium-neon", "laser", "mirror", "passive", "piezoelectric" ]
https://hackaday.com/wp-…_laser.png?w=800
Lasers are pretty much magic — it’s all done with mirrors. Not every laser, of course, but in the 1980s, the most common lasers in commercial applications were probably the helium-neon laser, which used a couple of mirrors on the end of a chamber filled with gas and a high-voltage discharge to produce a wonderful red-o...
10
4
[ { "comment_id": "6753144", "author": "Bruce Gettel", "timestamp": "2024-04-24T20:11:42", "content": "I don’t know nuttin’ about nuttin’ so forgive my ignorance. But in theory, could this be done multiple times with the same laser source across great distances – i.e. a “chain” of oscillators that ke...
1,760,371,935.875103
https://hackaday.com/2024/04/24/diy-electronics-plus-woodworking-equal-custom-lamp/
DIY Electronics Plus Woodworking Equal Custom Lamp
Inderpreet Singh
[ "LED Hacks" ]
[ "desk lamp", "ESP8266", "gesture" ]
https://hackaday.com/wp-…A-Lamp.jpg?w=800
There is something about wooden crafts that when combined with electronics, have a mesmerizing effect on the visual senses. The Gesture Controlled DNA Wooden Desk Lamp by [Timber Rough] is a bit of both with a nice desk piece that’s well documented for anyone who wants to build their own. Construction starts with a las...
5
3
[ { "comment_id": "6753122", "author": "Clovis Fritzen", "timestamp": "2024-04-24T18:50:13", "content": "“There is something about wooden crafts that when combined with electronics, have a mesmerizing effect on the visual senses” so true. In fact any material combined with electronics has a similar ef...
1,760,371,935.825114
https://hackaday.com/2024/04/24/supercon-2023-alex-lynd-explores-mcus-in-infosec/
Supercon 2023: Alex Lynd Explores MCUs In Infosec
Tom Nardi
[ "cons", "Hackaday Columns", "Security Hacks", "Slider" ]
[ "2023 Hackaday Supercon", "ESP32", "ESP8266", "InfoSec", "presentation", "surveillance", "talk" ]
https://hackaday.com/wp-…3_feat.jpg?w=800
The average Hackaday reader hardly needs to be reminded of the incredible potential of the modern microcontroller. While the Arduino was certainly transformative when it hit the scene, those early 8-bit MCUs were nothing compared to what’s on the market now. Multiple cores with clock speeds measured in the hundreds of ...
9
6
[ { "comment_id": "6753096", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-04-24T17:47:12", "content": "I’m not trying to ageist(?). B^)I am impressed by what he has done.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6753104", ...
1,760,371,935.946143
https://hackaday.com/2024/04/24/the-first-european-pocket-calculator-came-from-yugoslavia/
The First European Pocket Calculator Came From Yugoslavia
Jenny List
[ "Retrocomputing" ]
[ "70's calculators", "calculator", "retro calculato", "yugoslavia" ]
https://hackaday.com/wp-…atured.jpg?w=800
At the start of the 1970s the pocket calculator was the last word in personal electronics, and consumers in Europe looked eagerly towards Japan or the USA for a glimpse of new products. Meanwhile the European manufacturers, perhaps Philips in the Netherlands, or Olivetti in Italy, would no doubt have been putting their...
10
6
[ { "comment_id": "6753075", "author": "Joshua", "timestamp": "2024-04-24T17:22:03", "content": "The design looks like it’s from 1960 or something.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6753086", "author": "OH3MVV", "timestamp": "2024-04-24T17:2...
1,760,371,936.005196
https://hackaday.com/2024/04/24/mining-and-refining-uranium-and-plutonium/
Mining And Refining: Uranium And Plutonium
Dan Maloney
[ "Engineering", "Featured", "News", "Original Art", "Slider" ]
[ "mining", "Plutonium", "uranium" ]
https://hackaday.com/wp-…tonium.jpg?w=800
When I was a kid we used to go to a place we just called “The Book Barn.” It was pretty descriptive, as it was just a barn filled with old books. It smelled pretty much like you’d expect a barn filled with old books to smell, and it was a fantastic place to browse — all of the charm of an old library with none of the o...
40
10
[ { "comment_id": "6753006", "author": "biuro", "timestamp": "2024-04-24T14:43:10", "content": "“Weapons-grade plutonium can only cook for a couple of weeks, which means a civilian reactor would need to be shut down far too often for it to both generate power and synthesize plutonium. So, special prod...
1,760,371,936.192956
https://hackaday.com/2024/04/24/chinese-subs-may-be-propelled-silently-by-lasers/
Chinese Subs May Be Propelled Silently By Lasers
Richard Baguley
[ "Laser Hacks", "Weapons Hacks" ]
[ "laser", "stealth", "submarine" ]
https://hackaday.com/wp-…marine.jpg?w=800
If sharks with lasers on their heads weren’t bad enough, now China is working on submarines with lasers on their butts. At least, that’s what this report in the South China Morning Post claims , anyway. According to the report, two-megawatt lasers are directed through fiber-optic cables on the surface of the submarine,...
62
23
[ { "comment_id": "6752944", "author": "C", "timestamp": "2024-04-24T11:11:22", "content": "I thought cavitation was a bad thing. Doesn’t cavitation increase drag? Can someone explain this to me?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6752948", ...
1,760,371,936.510895
https://hackaday.com/2024/04/24/flute-now-included-on-list-of-human-interface-devices/
Flute Now Included On List Of Human Interface Devices
Bryan Cockfield
[ "Musical Hacks", "Peripherals Hacks" ]
[ "audio processing", "human interface device", "microcontroller", "mouse", "mouse pointer", "music", "rp2040" ]
https://hackaday.com/wp-…e-main.png?w=800
For decades now, we’ve been able to quickly and reliably interface musical instruments to computers. These tools have generally made making and recording music much easier, but they’ve also opened up a number of other out-of-the-box ideas we might not otherwise see or even think about. For example, [Joren] recently bui...
17
10
[ { "comment_id": "6752934", "author": "bob", "timestamp": "2024-04-24T10:39:11", "content": "It would be less objectionable to listen to if it was ultrasonic. You could even 3d print a full keyboard, using a fan to pressurise it. now, a joke: The legend of zelda, ocarina of xy positioning system.", ...
1,760,371,936.406163
https://hackaday.com/2024/04/23/no-active-components-in-this-mysterious-audio-oscillator/
No Active Components In This Mysterious Audio Oscillator
Dan Maloney
[ "Parts" ]
[ "microphone", "oscillator", "speaker" ]
https://hackaday.com/wp-…llator.png?w=800
What’s the simplest audio frequency oscillator you can imagine? There’s the 555, of course, and we can think of a few designs using just two transistors or even a few with just one. But how about an oscillator with no active components ? Now there’s a neat trick. Replicating [Stelian]’s “simplest audio oscillator on th...
39
10
[ { "comment_id": "6752873", "author": "jpa", "timestamp": "2024-04-24T05:32:45", "content": "Granule mics provide gain as they modulate current flow from the battery.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6752877", "author": "Urgon", ...
1,760,371,936.26973
https://hackaday.com/2024/04/23/new-jedec-ddr5-memory-specification-up-to-8800-mt-s-anti-rowhammer-features/
New JEDEC DDR5 Memory Specification: Up To 8800 MT/s, Anti-Rowhammer Features
Maya Posch
[ "News", "Parts" ]
[ "ddr5", "memory", "Row hammer" ]
https://hackaday.com/wp-…ial_wp.jpg?w=800
“ Row hammer ” by Dsimic – Own work . Licensed under CC BY-SA 4.0 via Wikimedia Commons . As DDR SDRAM increases in density and speed, so too do new challenges and opportunities appear. In the recent DDR5 update by JEDEC – as reported by Anandtech – we see not only a big speed increase from the previous maximum of 6800...
5
2
[ { "comment_id": "6752985", "author": "BrendaEM", "timestamp": "2024-04-24T13:38:10", "content": "The future of RAM is static.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6753040", "author": "C", "timestamp": "2024-04-24T16:04:31", ...
1,760,371,936.559534
https://hackaday.com/2024/04/23/floss-weekly-episode-780-zoneminder-better-call-randal/
FLOSS Weekly Episode 780: Zoneminder — Better Call Randal
Jonathan Bennett
[ "Hackaday Columns", "Podcasts", "Software Development" ]
[ "FLOSS Weekly", "open source", "Zoneminder" ]
https://hackaday.com/wp-…pewire.jpg?w=800
This week Jonathan Bennett and Aaron Newcomb chat with Isaac Connor about Zoneminder ! That’s the project that’s working to store and deliver all the bits from security cameras — but the CCTV world has changed a lot since Zoneminder first started, over 20 years ago. The project is working hard to keep up, with machine ...
3
1
[ { "comment_id": "6752847", "author": "Daniel Dunn", "timestamp": "2024-04-24T01:31:14", "content": "CCTV is one of the few things I built myself, and don’t regret… I really like the idea of zoneminder… but the setup seems pretty involved.Does it still need a separate database? Does the WebRTC stuff...
1,760,371,936.602492
https://hackaday.com/2024/04/22/optical-tweezers-investigate-tiny-particles/
Optical Tweezers Investigate Tiny Particles
Bryan Cockfield
[ "Laser Hacks" ]
[ "biology", "Chemistry", "colloid", "diffraction", "dvd burner", "glycerol", "laser", "optical drive", "optical tweezers", "tweezers" ]
https://hackaday.com/wp-…s-main.png?w=800
No matter how small you make a pair of tweezers, there will always be things that tweezers aren’t great at handling. Among those are various fluids, and especially aerosolized droplets, which can’t be easily picked apart and examined by a blunt tool like tweezers. For that you’ll want to reach for a specialized tool li...
1
1
[ { "comment_id": "6752718", "author": "Steven Hill", "timestamp": "2024-04-23T16:24:15", "content": "I did this back in 1971 with a Huge’s Pulse Ar Laser and some micro polystyrene sphere’s It was for a regional Science Fair project and won in the physics section. It was. new and novel back then...
1,760,371,936.643515
https://hackaday.com/2024/04/22/nasas-voyager-1-resumes-sending-engineering-updates-to-earth/
NASA’s Voyager 1 Resumes Sending Engineering Updates To Earth
Maya Posch
[ "Space" ]
[ "space probe", "voyager" ]
https://hackaday.com/wp-…r_feat.jpg?w=800
After many tense months, it seems that thanks to a gaggle of brilliant engineering talent and a lucky break the Voyager 1 spacecraft is once more back in action. Confirmation came on April 20th , when Voyager 1 transmitted its first data since it fell silent on November 14 2023. As previously suspected , the issue was ...
29
13
[ { "comment_id": "6752500", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-04-22T23:12:53", "content": "Awesome!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6752507", "author": "Bob", "timestamp": "2024-04-22T23:55:46", "cont...
1,760,371,938.244079
https://hackaday.com/2024/04/22/ancient-cable-modem-reveals-its-rf-secrets/
Ancient Cable Modem Reveals Its RF Secrets
Dan Maloney
[ "Retrocomputing", "Reverse Engineering" ]
[ "cable", "demodulation", "modem", "NABU", "O-QPSK", "quadrature", "reverse engineering", "RF", "videotext" ]
https://hackaday.com/wp-…4/nabu.png?w=800
Most reverse engineering projects we see around here have some sort of practical endpoint in mind. Usually, but not always. Reverse-engineering a 40-year-old cable modem probably serves no practical end, except for the simple pleasure of understanding how 1980s tech worked. You’ll be forgiven if the NABU Network, the s...
27
7
[ { "comment_id": "6752449", "author": "rclark", "timestamp": "2024-04-22T20:33:33", "content": "When did a 40 year device (the 80s) become Ancient ;) . There are quite a few of us that are still living you know that lived through the 80s :) . Now back 500 BC …Interesting project though.", "p...
1,760,371,939.112208
https://hackaday.com/2024/04/22/ai-lego-a-brickton-of-ideas/
AI + LEGO = A Brickton Of Ideas
Kristina Panos
[ "Artificial Intelligence" ]
[ "ai", "artificial intelligence", "lego", "legos" ]
https://hackaday.com/wp-…it-800.png?w=800
What if there was some magic device that could somehow scan all your LEGO and tell you what you can make with it? It’s a childhood dream come true, right? Well, that device is in your pocket. Just dump out your LEGO stash on the carpet, spread it out so there’s only one layer, scan it with your phone, and after a short...
38
9
[ { "comment_id": "6752405", "author": "TG", "timestamp": "2024-04-22T18:47:52", "content": "Firmly in the “AI telling you what to think” realm. What’s the point of playing an imagination/creativity game if you outsource the imagination and creativity?", "parent_id": null, "depth": 1, "rep...
1,760,371,938.892975
https://hackaday.com/2024/04/22/slicing-and-dicing-the-bits-cpu-design-the-old-fashioned-way/
Slicing And Dicing The Bits: CPU Design The Old Fashioned Way
Al Williams
[ "computer hacks", "Hackaday Columns", "Slider" ]
[ "am2900", "am2901", "amd", "bitslice" ]
https://hackaday.com/wp-…am2901.png?w=800
Writing for Hackaday can be somewhat hazardous. Sure, we don’t often have to hide from angry spies or corporate thugs. But we do often write about something and then want to buy it. Expensive? Hard to find? Not needed? Doesn’t really matter. My latest experience with this effect was due to a recent article I wrote abou...
12
9
[ { "comment_id": "6752396", "author": "MD", "timestamp": "2024-04-22T18:06:31", "content": "Nice find. Reminds me of the NorthStar “hardware floating point” S-100 board I had years ago. It used a microcoded 74181 :-) And Polymorphic BASIC could make use of it. Quite an impressive speedup.", "par...
1,760,371,938.61414
https://hackaday.com/2024/04/22/how-wireless-charging-works-and-why-its-terrible/
How Wireless Charging Works And Why It’s Terrible
Maya Posch
[ "Phone Hacks" ]
[ "wireless charging" ]
https://hackaday.com/wp-…-temps.jpg?w=800
Wireless charging is pretty convenient, as long as the transmitter and receiver speak the same protocol. Just put the device you want to charge on the wireless charger without worrying about plugging in a cable. Yet as it turns out, the disadvantages of wireless charging may be more severe than you think, at least acco...
83
14
[ { "comment_id": "6752335", "author": "Dude", "timestamp": "2024-04-22T15:38:24", "content": "The biggest irony of wireless charging is that it uses more wire.A lot more wire.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6752337", "author": "Deon va...
1,760,371,938.543777
https://hackaday.com/2024/04/22/the-hunt-for-mh370-goes-on-with-barnacles-as-a-lead/
The Hunt For MH370 Goes On With Barnacles As A Lead
Lewin Day
[ "Current Events", "Featured", "Science", "Slider" ]
[ "barnacles", "marine biology", "MH370", "plane" ]
https://hackaday.com/wp-…atured.png?w=800
On March 8, 2014, Malaysia Airlines Flight 370 vanished. The crash site was never found, nor was the plane. It remains one of the most perplexing aviation mysteries in history. In the years since the crash, investigators have looked into everything from ocean currents to obscure radio phenomena to try and locate the pl...
43
15
[ { "comment_id": "6752290", "author": "Clóvis Fritzen", "timestamp": "2024-04-22T14:06:21", "content": "Bugs me that a single airplane was never found, while (most) ALL the others that ever crashed were rapidly found. Was that airplane chashed on purpose in a (previously studied) hard location to fin...
1,760,371,938.376223
https://hackaday.com/2024/04/23/80s-function-generator-is-both-beauty-and-beast/
80s Function Generator Is Both Beauty And Beast
Tom Nardi
[ "classic hacks", "Teardown" ]
[ "1980's", "function generator", "test equipment" ]
https://hackaday.com/wp-…a_feat.jpg?w=800
You know how the saying goes — they don’t make them like this anymore. It’s arguably true of pretty much any electronic device given the way technology changes over time, though whether or not it’s objectively a bad thing is going to vary from case to case. As a practical example, take a look at the insides of this 80’...
13
9
[ { "comment_id": "6752774", "author": "Clovis Fritzen", "timestamp": "2024-04-23T20:05:40", "content": "Love these teardowns, so informative (even if it is about old tech) you can learn a thing or two about circuit design.", "parent_id": null, "depth": 1, "replies": [] }, { "comme...
1,760,371,938.431933
https://hackaday.com/2024/04/23/amazon-ends-california-drone-deliveries-while-expanding-to-arizona/
Amazon Ends California Drone Deliveries While Expanding To Arizona
Maya Posch
[ "drone hacks" ]
[ "Amazon Prime Air" ]
https://hackaday.com/wp-…_drone.jpg?w=800
The outgoing MK27 drone used by Amazon today for deliveries. (Credit: Amazon) When Amazon started its Prime Air drone delivery service in 2022, it had picked College Station (Texas) and Lockeford (California) as its the first areas where the service would be offered. Two years later, Amazon has now announced that it wi...
17
8
[ { "comment_id": "6752748", "author": "vbet canlı destek", "timestamp": "2024-04-23T17:55:05", "content": "t’s interesting to see Amazon adjust their drone delivery strategy, shifting from California to Arizona. Their continuous investment in newer, quieter drones like the MK30 shows a strong commitm...
1,760,371,938.950024
https://hackaday.com/2024/04/23/an-elbow-joint-that-can/
An Elbow Joint That Can
Jenny List
[ "Robots Hacks" ]
[ "cycloidal gearbox", "elbow joint" ]
https://hackaday.com/wp-…atured.jpg?w=800
We’re not certain whether [Paul Gould]’s kid’s prosthetic elbow joint is intended for use by a real kid or is part of a robotics project — but it caught our eye for the way it packs the guts of a beefy-looking motorized joint into such a small space. At its heart is a cycloidal gearbox, in which the three small shafts ...
10
5
[ { "comment_id": "6752727", "author": "MAC", "timestamp": "2024-04-23T16:48:47", "content": "“There’s certainly a comparison to be maid over robotic joints which use wires for actuation.”The comparison that is made depends upon the task performed by the maid!Homophones can be fun!", "parent_id": ...
1,760,371,938.291065
https://hackaday.com/2024/04/23/programming-ada-first-steps-on-the-desktop/
Programming Ada: First Steps On The Desktop
Maya Posch
[ "Featured", "Interest", "Skills", "Software Development" ]
[ "ada", "programming", "software" ]
https://hackaday.com/wp-…System.jpg?w=800
Who doesn’t want to use a programming language that is designed to be reliable, straightforward to learn and also happens to be certified for everything from avionics to rockets and ICBMs? Despite Ada’s strong roots and impressive legacy, it has the reputation among the average hobbyist of being ‘complicated’ and ‘obsc...
66
18
[ { "comment_id": "6752672", "author": "Zoe Nagy", "timestamp": "2024-04-23T14:08:38", "content": "Huraay back to Pascal syntax.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6752679", "author": "Joseph Eoff", "timestamp": "2024-04-23T14:31:21...
1,760,371,938.729771
https://hackaday.com/2024/04/23/your-smart-tv-does-4k-surround-sound-denial-of-service/
Your Smart TV Does 4K, Surround Sound, Denial-of-service…
Jenny List
[ "home entertainment hacks" ]
[ "network security", "smart tv", "software bug" ]
https://hackaday.com/wp-…atured.jpg?w=800
Any reader who has bought a TV in recent years will know that it’s now almost impossible to buy one that’s just a TV. Instead they are all “smart” TVs, with an on-board computer running a custom OS with a pile of streaming apps installed. It fits an age in which linear broadcast TV is looking increasingly archaic, but ...
53
21
[ { "comment_id": "6752631", "author": "CJay", "timestamp": "2024-04-23T11:28:38", "content": "I guess it’s not at all beyond the realms of possibility that the huge numbers of smart TVs running embedded Linux variants could be backdoored and/or hijacked by malicious actors, states etc to spy and laun...
1,760,371,939.042469
https://hackaday.com/2024/04/23/reverse-engineering-the-quansheng-hardware/
Reverse Engineering The Quansheng Hardware
Dan Maloney
[ "Radio Hacks", "Reverse Engineering" ]
[ "bom", "collaboration", "KiCAD", "lapping", "nanovna", "pcb", "Quansheng", "reverse engineering", "uv k5" ]
https://hackaday.com/wp-…onents.jpg?w=800
In the world of cheap amateur radio transceivers, the Quansheng UV-K5 can’t be beaten for hackability. But pretty much every hack we’ve seen so far focuses on the firmware. What about the hardware? To answer that question, [mentalDetector] enlisted the help of a few compatriots and vivisected a UV-K5 to find out what m...
11
6
[ { "comment_id": "6752588", "author": "Reluctant Cannibal", "timestamp": "2024-04-23T08:17:33", "content": "Nice work. Presumably somebody’s going to build it to check the reverse emgineering is fault free?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "67527...
1,760,371,939.168551
https://hackaday.com/2024/04/22/dual-wavelength-sla-3d-printing-fast-continuous-printing-with-romp-and-rfp-resins/
Dual-Wavelength SLA 3D Printing: Fast Continuous Printing With ROMP And FRP Resins
Maya Posch
[ "3d Printer hacks", "Science" ]
[ "photopolymerization", "sla printing" ]
https://hackaday.com/wp-…0004-m.jpg?w=800
As widespread as 3D printing with stereolithography (SLA) is in the consumer market, these additive manufacturing (AM) machines are limited to a single UV light source and the polymerization of free-radical polymerization (FRP) resins. The effect is that the object is printed in layers, with each layer adhering not onl...
10
5
[ { "comment_id": "6752576", "author": "Sprite_tm", "timestamp": "2024-04-23T07:40:16", "content": "Ring-opening metathesis polymerization… proprietary CLIP technology… photo-active olefin metathesis catalyst… photobase generator… Yes, I know some of these words.", "parent_id": null, "depth": ...
1,760,371,939.516726
https://hackaday.com/2024/04/22/going-canadian-the-rise-and-fall-of-novell/
Going Canadian: The Rise And Fall Of Novell
Maya Posch
[ "History" ]
[ "NE2000", "Novell" ]
https://hackaday.com/wp-…atured.jpg?w=800
During the 1980s and 1990s Novell was one of those names that you could not avoid if you came even somewhat close to computers. Starting with selling computers and printers, they’d switch to producing networking hardware like the famous NE2000 and the inevitability that was Novell Netware software, which would cement i...
47
22
[ { "comment_id": "6752237", "author": "Bob the builder", "timestamp": "2024-04-22T11:36:15", "content": "I miss NetWare. It was so incredibly stable. I remember a story of a classmate that was an intern at a company that lost a NetWare machine. It was running fine, but they couldn’t find the physical...
1,760,371,939.370054
https://hackaday.com/2024/04/22/ai-camera-only-takes-nudes/
AI Camera Only Takes Nudes
Navarre Bartz
[ "Artificial Intelligence", "digital cameras hacks", "News" ]
[ "ai", "AI image generation", "ai image generator", "camera", "Deepfake", "naked", "not-a-camera", "nude", "privacy", "stable diffusion" ]
https://hackaday.com/wp-…llow-q.jpg?w=800
One of the cringier aspects of AI as we know it today has been the proliferation of deepfake technology to make nude photos of anyone you want. What if you took away the abstraction and put the faker and subject in the same space? That’s the question the NUCA camera was designed to explore . [via 404 Media ] [Mathias V...
52
20
[ { "comment_id": "6752190", "author": "Kalten", "timestamp": "2024-04-22T08:32:34", "content": "Umm, I guess it’s an interesting if rather creepy take on exploring the ethics of AI image generation but I really hope they don’t open source the code for this.", "parent_id": null, "depth": 1, ...
1,760,371,939.464366
https://hackaday.com/2024/04/21/restoring-a-vintage-german-ev/
Restoring A Vintage German EV
Navarre Bartz
[ "car hacks" ]
[ "CityEL", "electric vehicle", "evs", "LiFePO4", "lithium iron phosphate", "PEVs" ]
https://hackaday.com/wp-…-5-44.jpeg?w=800
When you think of EVs from the 90s, GM’s EV1 may come to mind, but [bleeptrack] found a more obscure CityEL three wheeler to restore . This Personal Electric Vehicle (PEV) is no spring chicken, but a new set of LiFePO 4 batteries should give its 48 V electrical system a new lease on life. [bleeptrack] shows us through ...
44
12
[ { "comment_id": "6752165", "author": "simon", "timestamp": "2024-04-22T05:02:38", "content": "This is actually originally a Danish manufactured and designed car, we called it “Ellert”", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6752450", "author":...
1,760,371,939.280791
https://hackaday.com/2024/04/21/the-muse-permanent-magnet-stellarator-fusion-reactor-with-off-the-shelf-parts/
The MUSE Permanent Magnet Stellarator: Fusion Reactor With Off-The-Shelf Parts
Maya Posch
[ "Science" ]
[ "stellarator" ]
https://hackaday.com/wp-…embled.jpg?w=800
(a) The 12 permanent magnet holder subsegments. (b) The 16 planar, circular toroidal field coils are positioned inside the water-jet cut support structure. (c) The glass vacuum vessel is joined by 3D-printed low-thickness couplers. Glass ports were hot welded to the torus. (Credit: T.M. Qian et al., 2023) When you thin...
24
11
[ { "comment_id": "6752150", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-04-22T02:13:36", "content": "Miniaturized further it could be used as a ski boot heater!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6752160", "author": "Asop...
1,760,371,939.638928
https://hackaday.com/2024/04/21/hackaday-links-april-21-2024/
Hackaday Links: April 21, 2024
Dan Maloney
[ "Hackaday Columns", "Hackaday links", "Slider" ]
[ "ai", "atlas", "boston dynamics", "current transformer", "drone", "enhance!", "evidence", "hackaday links", "Heaviside", "humanoid", "iss", "legal", "machine learning", "nasa", "power-line", "space junk", "telegraphers equation" ]
https://hackaday.com/wp-…banner.jpg?w=800
Do humanoid robots dream of electric retirement? Who knows, but maybe we can ask Boston Dynamics’ Atlas HD, which was officially retired this week . The humanoid robot, notable for its warehouse Parkour and sweet dance moves , never went into production, at least not as far as we know. Atlas always seemed like it was i...
12
6
[ { "comment_id": "6752131", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-04-21T23:33:18", "content": "Ancestor of Hugh Jackman?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6752151", "author": "Ostracus", "timestamp": ...
1,760,371,939.691492
https://hackaday.com/2024/04/21/keeping-alive-the-future-of-cars-1980s-style/
Keeping Alive The Future Of Cars, 1980s Style
Jenny List
[ "Repair Hacks", "Transportation Hacks" ]
[ "crt", "digital dash", "Oldsmobile" ]
https://hackaday.com/wp-…atured.jpg?w=800
Here at Hackaday we’re a varied bunch of writers, some of whom have careers away from this organ, and others whose work also appears on the pages of other publications in different fields. One such is our colleague [Lewin Day], and he’s written a cracking piece for The Autopian about the effort to keep an obscure piece...
18
9
[ { "comment_id": "6752092", "author": "Joshua", "timestamp": "2024-04-21T21:01:49", "content": "The great thing about vintage tech is its independence. It’s not being bound to the internet, cell phone towers or any satellite technology.", "parent_id": null, "depth": 1, "replies": [ ...
1,760,371,939.570921
https://hackaday.com/2024/04/21/manual-supports-for-3d-printing/
Manual Supports For 3D Printing
Al Williams
[ "3d Printer hacks" ]
[ "3D printed supports", "3d printing" ]
https://hackaday.com/wp-…4/core.png?w=800
[MakerSpace] wanted to 3D print an RFID card holder. On one side is a slot for a card and on the other side has recesses for the RFID antenna. They used these to control access to machines and were milling them out using a CNC machine. Since there were no flat surfaces, he had to turn on supports in the slicer, right? ...
14
9
[ { "comment_id": "6752070", "author": "Eckehard Fiedler", "timestamp": "2024-04-21T18:13:40", "content": "Printing it in 2 parts and gluing together could also do the trick", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6752200", "author": "helge", ...
1,760,371,939.740566
https://hackaday.com/2024/04/21/radio-frequency-burns-flying-a-kite-and-you/
Radio Frequency Burns, Flying A Kite, And You
Lewin Day
[ "Radio Hacks" ]
[ "am", "am radio", "antenna", "kite", "radio frequency", "rf burns" ]
https://hackaday.com/wp-…enshot.png?w=800
Most hams can tell you that it’s possible to get a nasty RF burn if you accidentally touch an antenna while it’s transmitting. However, you can also cop a nasty surprise on the receiving end if you’re not careful, as explained in a video from [Grants Pass TV Repair]. It’s hard to see in a still image, but the RF burns ...
22
7
[ { "comment_id": "6752046", "author": "sohere", "timestamp": "2024-04-21T16:01:52", "content": "Make a hot-dog talk using an AM broadcast station – another one from Geerling Engineering:https://www.youtube.com/watch?v=GgDxXDV4_hc", "parent_id": null, "depth": 1, "replies": [] }, { ...
1,760,371,939.805798
https://hackaday.com/2024/04/21/from-z80-to-ez80-porting-8-bit-sonic-2-to-the-ti-84-ce/
From Z80 To EZ80: Porting 8-bit Sonic 2 To The TI-84+ CE
Maya Posch
[ "Games" ]
[ "Sega Master System", "ti-84" ]
https://hackaday.com/wp-…_84_ce.jpg?w=720
An unwritten rule is that if two systems runs even roughly the same CPU, you are obligated to port software between them, or at least give it a fair shake. This led [grubbycoder] down the path of porting Sonic 2 for the Sega Master System (to the eZ80-based Ti 84+ CE. Selecting this particular graphing calculator came ...
4
3
[ { "comment_id": "6752071", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-04-21T18:16:48", "content": "Recently I saw a thread on hpmuseum.org about someone who is reprogramming a TI 84 to be RPN.Here it is:https://www.hpmuseum.org/forum/thread-20867.html", "parent_id": null...
1,760,371,940.039118
https://hackaday.com/2024/04/21/an-open-source-gaming-mouse/
An Open-Source Gaming Mouse
Jenny List
[ "Peripherals Hacks" ]
[ "gaming mouse", "mouse" ]
https://hackaday.com/wp-…atured.jpg?w=800
It’s a shame, that peripherals sold as of higher performance for gaming so often deliver little but aggressive styling. [Wareya] became frustrated with the fragile switches on his choice of gaming mouse, so decided to design his own . In the video that he’s placed below the break, he takes us through all the many choic...
12
7
[ { "comment_id": "6751942", "author": "stan423321", "timestamp": "2024-04-21T08:19:36", "content": "“Perhaps it’s a mark of how good computer mice are in general that we see so relatively few projects building them from scratch rather than modifying exiting (sic!) ones…” – with all due respect, no.I’...
1,760,371,940.18511
https://hackaday.com/2024/04/20/trolling-ibms-quantum-processor-advantage-with-a-commodore-64/
Trolling IBM’s Quantum Processor Advantage With A Commodore 64
Maya Posch
[ "Science" ]
[ "commodore 64", "Ising model", "quantum computing" ]
https://hackaday.com/wp-…_setup.jpg?w=800
The memory map of the implementation, as set within the address space of the Commodore 64 – about 15kB of the accessible 64kB RAM is used. There’s been a lot of fuss about the ‘quantum advantage’ that would arise from the use of quantum processors and quantum systems in general. Yet in this high-noise, high-uncertainty...
9
6
[ { "comment_id": "6751912", "author": "Truth", "timestamp": "2024-04-21T07:07:10", "content": "“Of course, science is only valuable if it is replicable, so to support any replication studies of this work, source code will be available upon reasonable request to the author. In the spirit of SIGBOVIK, ...
1,760,371,940.137237
https://hackaday.com/2024/04/20/am-radio-broadcast-uses-phasor-to-let-eight-towers-spray-one-big-signal/
AM Radio Broadcast Uses Phasor To Let Eight Towers Spray One Big Signal
Lewin Day
[ "Radio Hacks" ]
[ "am", "am radio", "broadcasting", "phasor" ]
https://hackaday.com/wp-…enshot.png?w=800
If you’re in the commercial AM radio business, you want to send your signal as far and wide as possible. More listeners means you can make more ad revenue, after all. [Jeff Geerling] recently visited a tower site for WSDZ-AM, which uses a full eight towers to broadcast its 20kW AM signal. To do that, it needs a phasor ...
8
6
[ { "comment_id": "6751882", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-04-21T02:43:05", "content": "I enjoy watching their videos, but I think the old man at times gets his thoughts too far ahead of what he’s saying, which leaves a gap in following his logic.But, then, maybe ...
1,760,371,940.08345
https://hackaday.com/2024/04/20/solar-panel-keeps-cheap-digital-calipers-powered-up/
Solar Panel Keeps Cheap Digital Calipers Powered Up
Dan Maloney
[ "Tool Hacks" ]
[ "calipers", "digital", "led", "LR44", "regulator", "solar", "voltage drop" ]
https://hackaday.com/wp-…lipers.jpg?w=800
There’s no doubt that cheap digital calipers are useful, especially when designing 3D-printed parts. Unfortunately, cheap digital calipers are also cheap, and tend to burn through batteries quickly. Sure, you can remove the battery when you’re done using them, but that’s for suckers — winners turn to solar power to kee...
40
18
[ { "comment_id": "6751848", "author": "AZdave", "timestamp": "2024-04-21T00:11:59", "content": "Because LR44s are so expensive and a solar panel hanging by its wires is so convenient?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6751857", "author": ...
1,760,371,940.26355
https://hackaday.com/2024/04/20/relatively-universal-rom-programmer-makes-retro-tech-hacking-accessible/
Relatively Universal ROM Programmer Makes Retro Tech Hacking Accessible
Arya Voronova
[ "Repair Hacks", "Retrocomputing", "Tool Hacks" ]
[ "6502", "65uino", "eeprom", "programmer", "rom", "W27C512" ]
https://hackaday.com/wp-…_feat.jpeg?w=800
There’s treasures hidden in old technology, and you deserve to be able to revive it. Whether it’s old personal computer platforms, vending machines, robot arms, or educational kits based on retro platforms, you will need to work with parallel EEPROM chips at some point. [Anders Nielsen] was about to do just that, when ...
27
15
[ { "comment_id": "6751814", "author": "Chris Dotson", "timestamp": "2024-04-20T22:11:50", "content": "This is great! If you just need to do a ROM or two, you may also be able to use flashrom with a network card like a 3C509b that has a socket and can program up to 128K ROMs. I just did that recentl...
1,760,371,940.435921
https://hackaday.com/2024/04/20/let-the-solder-scroll-take-care-of-your-feed-needs/
Let The Solder Scroll Take Care Of Your Feed Needs
Donald Papp
[ "Tool Hacks" ]
[ "3D printable", "feeder", "soldering", "tool" ]
https://hackaday.com/wp-…l-tool.png?w=800
[Victor]’s nifty tool the Solder Scroll is a handheld device that lets one feed solder out simply by turning something a little like a scroll wheel. It looks like an intuitive and comfortable design that can adapt to a wide variety of solder thicknesses, and is entirely 3D printed. One part we particularly like is the ...
38
18
[ { "comment_id": "6751760", "author": "Jan", "timestamp": "2024-04-20T17:22:55", "content": "I dont get it, what is wrong with the old fashioned way?To solder is like welding, its an art and craft.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6751777", ...
1,760,371,940.34911
https://hackaday.com/2024/04/20/the-long-and-the-short-of-it/
The Long And The Short Of It
Elliot Williams
[ "cons", "Hackaday Columns", "Rants" ]
[ "2024 hackaday europe", "lightning talks", "newsletter" ]
https://hackaday.com/wp-…ot0001.jpg?w=800
Last weekend was Hackaday Europe 2024, and it was great. Besides having some time to catch up with everyone, see some fun new badge hacks, and of course all the projects that folks brought along, I also had time to attend most all of the talks . And the talks were split into two distinct sections: long-format talks on ...
11
5
[ { "comment_id": "6751753", "author": "Aquahood", "timestamp": "2024-04-20T16:55:12", "content": "Couldn’t afford it I’m on medical leave…. I got unprovoked and attacked to the point of needing six surgeries I’ve had five out of the six and May 2nd I’m scheduled for starting on the track for the 6th ...
1,760,371,940.495751
https://hackaday.com/2024/04/20/bad-experiences-with-a-cheap-wind-turbine/
Bad Experiences With A Cheap Wind Turbine
Lewin Day
[ "green hacks" ]
[ "vertical axis wind turbine", "Wind turbine", "windmill" ]
https://hackaday.com/wp-…enshot.png?w=800
If you’ve got a property with some outdoor space and plenty of wind, you might consider throwing up a windmill to generate some electricity. Indeed, [The Broject List] did just that . Only, his experience was a negative one, having purchased a cheap windmill online. He’s warning off others from suffering the same way b...
44
17
[ { "comment_id": "6751696", "author": "Manfred", "timestamp": "2024-04-20T11:48:55", "content": "Just buy the cheapest product from china. What can possibly go wrong?I’am powering my house with a 2000000mAh powerbank for 5$ and storing all my data on a 16TB SSD for 25$.", "parent_id": null, "...
1,760,371,940.618737
https://hackaday.com/2024/04/20/3d-printer-streaming-solution-unlocks-webcam-features/
3D Printer Streaming Solution Unlocks Webcam Features
Bryan Cockfield
[ "3d Printer hacks", "Software Hacks" ]
[ "Octoprint", "rtmp", "streaming", "video", "webcam", "youtube" ]
https://hackaday.com/wp-…m-main.png?w=800
While 3D printer hardware has come along way in the past decade and a half, the real development has been in the software. Open source slicers are constantly improving, and OctoPrint can turn even the most basic of printers into a network-connected powerhouse. But despite all these improvements, there’s still certain c...
7
4
[ { "comment_id": "6751952", "author": "Ewald", "timestamp": "2024-04-21T09:06:01", "content": "Interesting guide on how to find and use the video url on these chinese camera’s.As for the restreaming solution, I’ll just drop this here:https://opensource.com/article/23/3/raspberry-pi-streaming-server",...
1,760,371,940.538249
https://hackaday.com/2024/04/19/building-a-giant-boardgame-isnt-easy/
Building A Giant Boardgame Isn’t Easy
Lewin Day
[ "Games" ]
[ "activation", "build", "pi pico", "Raspberry Pi Pico" ]
https://hackaday.com/wp-…699629.jpg?w=800
[Stevenson Streeper] is a maker, and was recently charged with a serious mission. He had to prototype, design, and build a board game. A software-controlled board game, that is, and one that was 400 square-feet in size. As you might imagine, this ended up being a tall order, and he’s been kind enough to share his tale ...
8
5
[ { "comment_id": "6751660", "author": "Joshua", "timestamp": "2024-04-20T07:55:46", "content": "Size isn’t everything.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6751714", "author": "Sword", "timestamp": "2024-04-20T13:36:06", "con...
1,760,371,940.665866
https://hackaday.com/2024/04/19/measuring-an-unknown-velocity-factor/
Measuring An Unknown Velocity Factor
Al Williams
[ "Radio Hacks" ]
[ "Coax", "transmission line", "tuning stubs", "velocity factor" ]
https://hackaday.com/wp-…/04/vf.png?w=800
When is the speed of light not the speed of light? Of course, that’s a trick question. The speed of light may be constant, but just as sound travels at different speeds in different media, electronic signals move through transmission lines at a reduced speed. When you have a known cable, you can look up the velocity fa...
14
6
[ { "comment_id": "6751656", "author": "Oliver", "timestamp": "2024-04-20T07:39:33", "content": "Lots of technical EE terms in this article. Would be nice for non native (English/EE) to get a simple translation :(", "parent_id": null, "depth": 1, "replies": [ { "comment_id": ...
1,760,371,940.919451
https://hackaday.com/2024/04/19/end-of-life-for-z80-cpu-and-peripherals-announced/
End-Of-Life For Z80 CPU And Peripherals Announced
Maya Posch
[ "News", "Parts", "Retrocomputing" ]
[ "z80", "Zilog Z80" ]
https://hackaday.com/wp-…atured.jpg?w=800
In a Product Change Notification (PCN) published on April 15, Zilog (now owned by Littelfuse) announced the End of Life for a range of Z80 products, specifically virtually all of the Z84C00 range. This also includes the peripherals, such as the Z84C10 range of MPUs. These are currently already marked as EoL on stores l...
57
16
[ { "comment_id": "6751589", "author": "Capo", "timestamp": "2024-04-19T23:19:18", "content": "Oh no! How will I be able to wire wrap my Z80 machine while listening to my old vinyl LPs under my trusty Coleman kerosene lamp? What is next? Will they come for my vacuum tubes too? Wait! What?!", "pare...
1,760,371,941.067578
https://hackaday.com/2024/04/19/roboticizing-an-etch-a-sketch/
Roboticizing An Etch-a-Sketch
Lewin Day
[ "classic hacks", "Robots Hacks" ]
[ "etch a sketch", "stepper motor" ]
https://hackaday.com/wp-…enshot.png?w=800
The Etch-a-Sketch was a popular toy, but a polarizing one. You were either one of those kids that had the knack , or one of the kids that didn’t. [Micah] was pretty firmly in the latter group, so decided to roboticize the Etch-a-Sketch so a computer could draw for him instead. The build uses a pair of stepper motors at...
7
5
[ { "comment_id": "6751547", "author": "David", "timestamp": "2024-04-19T20:14:23", "content": "Etch-a-Sketch should’ve had “penup” and “pendown,” just to give turtles a “run” for their money.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6751549", "author"...
1,760,371,940.864021
https://hackaday.com/2024/04/19/crystal-radio-kit-from-the-1970s/
Crystal Radio Kit From The 1970s
Al Williams
[ "Radio Hacks" ]
[ "crystal radio", "Len Buckwalter", "modern radio laboratories" ]
https://hackaday.com/wp-…/04/cr.png?w=800
If you read the December 1970 issue of Mechanix Illustrated , you’d be treated to [Len Buckwalter]’s crystal radio build. He called out Modern Radio Labs as the supplier for parts. That company, run by [Elmer Osterhoudt], got so many inquiries that he produced a kit, the #74 crystal set. [Michael Simpson] found an unop...
19
6
[ { "comment_id": "6751542", "author": "alnwlsn", "timestamp": "2024-04-19T20:02:36", "content": "Elmer Osterhoudt / Modern Radio Labs is definitely worth a second look. He was sort of “the” crystal radio guy, and ran a small shop in his garage where he made and sold crystal radio components out of ev...
1,760,371,940.976821
https://hackaday.com/2024/04/19/hackaday-podcast-episode-267-metal-casting-plasma-cutting-and-a-spicy-555/
Hackaday Podcast Episode 267: Metal Casting, Plasma Cutting, And A Spicy 555
Al Williams
[ "Hackaday Columns", "Podcasts" ]
[ "Hackaday Podcast" ]
https://hackaday.com/wp-…ophone.jpg?w=800
What were some of the best posts on Hackaday last week? Elliot Williams and Al Williams decided there were too many to choose from, but they did take a sampling of the ones that caught their attention. This week’s picks were an eclectic mix of everything from metal casting and plasma cutters to radio astronomy and spac...
3
3
[ { "comment_id": "6751532", "author": "Dude", "timestamp": "2024-04-19T19:23:03", "content": "One of the points about why the 555 is so nice for home-brew synthesizers is that it’s a convenient schmitt-trigger block for oscillators – with the difference that you have the control input which allows yo...
1,760,371,941.242577
https://hackaday.com/2024/04/19/ultra-tiny-wii-uses-custom-parts-and-looks-amazing/
Ultra-Tiny Wii Uses Custom Parts And Looks Amazing
Lewin Day
[ "Nintendo Hacks", "Nintendo Wii Hacks" ]
[ "nintendo", "nintendo wii", "wii" ]
https://hackaday.com/wp-…727373.png?w=800
The Nintendo Wii was never a large console. Indeed, it was smaller than both the Xbox 360, PlayStation 3, and most consoles of previous generations, too. That’s not to say it couldn’t be smaller, though. [loopj] has built what is perhaps the smallest Wii yet, which measures roughly the same size as a deck of cards. The...
17
5
[ { "comment_id": "6751496", "author": "a_do_z", "timestamp": "2024-04-19T16:17:43", "content": "So, a wee Wii?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6751504", "author": "H", "timestamp": "2024-04-19T16:34:13", "content": "A pi...
1,760,371,941.201147
https://hackaday.com/2024/04/19/this-week-in-security-putty-keys-libarchive-and-palo-alto/
This Week In Security: Putty Keys, Libarchive, And Palo Alto
Jonathan Bennett
[ "Hackaday Columns", "News", "Security Hacks" ]
[ "crypto", "putty", "This Week in Security" ]
https://hackaday.com/wp-…rkarts.jpg?w=800
It may be time to rotate some keys . The venerable PuTTY was updated to 0.81 this week, and the major fix was a change to how ecdsa-sha2-nistp521 signatures are generated. The problem was reported on the oss-security mailing list , and it’s quite serious, though thankfully with a somewhat narrow coverage. The PuTTY pag...
3
3
[ { "comment_id": "6751636", "author": "Allan-H", "timestamp": "2024-04-20T04:18:32", "content": "The author of the shortest vector problem paper had already discovered a bug, issued a retraction and a revised paper prior to this.“… the claim of showing a polynomial time quantum algorithm for solving ...
1,760,371,941.28754
https://hackaday.com/2024/04/19/nasas-ingenuity-mars-helicopter-transitions-into-stationary-testbed/
NASA’sIngenuityMars Helicopter Transitions Into Stationary Testbed
Maya Posch
[ "Space" ]
[ "Ingenuity", "mars", "mars helicopter" ]
https://hackaday.com/wp-…copter.jpg?w=800
On April 16th NASA announced the formal end to Ingenuity’s days as the first ever Martian helicopter, following its 72nd and final flight mission in January. This flight ended with a rough landing during which the helicopter’s blades got damaged and separated, leaving the plucky flying machine with its wings clipped. D...
22
5
[ { "comment_id": "6751406", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-04-19T11:13:55", "content": "I think that is great news.As Prosperity leaves its little “packages” on the Martian surface for later recovery, a side trip could be made to recover Ingenuity’s data as well."...
1,760,371,941.345002
https://hackaday.com/2024/04/19/build-your-own-rgb-fill-light-for-photography/
Build Your Own RGB Fill Light For Photography
Lewin Day
[ "digital cameras hacks", "LED Hacks" ]
[ "lamp", "light", "photography", "Wemos d1" ]
https://hackaday.com/wp-…3TOK3K.jpg?w=800
Photography is all about light, and capturing it for posterity. As any experienced photographer will tell you, getting the right lighting is key to getting a good shot. To help in that regard, you might like to have a fill light. If you follow [tobychui]’s example, you can build your own! Colors! The build relies on ad...
12
5
[ { "comment_id": "6751382", "author": "Andrzej", "timestamp": "2024-04-19T08:58:41", "content": "What’s the point of using addressable LEDs if you drive them all with the same color?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6751397", "author": "...
1,760,371,941.404885
https://hackaday.com/2024/04/18/pc-watercooling-prototype-is-pumpless/
PC Watercooling Prototype Is Pumpless
Al Williams
[ "computer hacks" ]
[ "thermosiphon", "water cooling" ]
https://hackaday.com/wp-…/04/wc.png?w=800
Watercooling is usually more efficient than air cooling for the same volume of equipment, and — important for many people — it is generally quieter. However, you still have water pump noises to deal with. [Der8auer] got a Wieland prototype cooler that doesn’t use a pump. Instead, it relies on the thermosiphon effect. I...
23
10
[ { "comment_id": "6751338", "author": "Dude", "timestamp": "2024-04-19T05:15:04", "content": "I saw couple of these in the early 2000’s.Only difference is that they used the thermosiphon on the radiator side, and the radiator was vertical on the side of the case, because there you have a much longer ...
1,760,371,941.467336
https://hackaday.com/2024/04/18/computing-via-virtual-dominos/
Computing Via (Virtual) Dominos
Al Williams
[ "Tech Hacks" ]
[ "digital logic", "dominos" ]
https://hackaday.com/wp-…04/dom.png?w=800
Back in 2012, [Matt Parker] and a team built a computer out of dominos for the Manchester Science Festival. [Andrew Taylor], part of the team that built the original,  has built a series of virtual domino puzzles to help explain how the computer worked. He also links to a video from the event, but be warned: the video ...
6
4
[ { "comment_id": "6751336", "author": "Will Stevens", "timestamp": "2024-04-19T04:36:08", "content": "This is a really great way of inspiring people to want to know how it works. I had fun years ago working out that using dual-rail logic it’s possible in principle to make any Boolean circuit with dom...
1,760,371,941.688558
https://hackaday.com/2024/04/18/remove-wall-plugs-fast-with-a-custom-tool/
Remove Wall Plugs Fast With A Custom Tool
Lewin Day
[ "Tool Hacks" ]
[ "removal", "screw", "wall plug" ]
https://hackaday.com/wp-…enshot.png?w=800
The best thing about buying your own home is that you can hang things on the walls. It’s a human right all too often denied to renters the world over. Regardless, five years later, when you’re doing the mandatory minimalist remodel, you’ll be ruing the day you put in all those wall anchors. At that point, consider remo...
39
19
[ { "comment_id": "6751299", "author": "Ox45", "timestamp": "2024-04-18T23:38:09", "content": "Like you did with you Cap Locks key?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "6751305", "author": "The Commenter Formerly Known As Ren", "times...
1,760,371,941.594573
https://hackaday.com/2024/04/18/diy-quad-motor-go-kart-is-a-thrilling-ride/
DIY Quad-Motor Go-Kart Is A Thrilling Ride
Donald Papp
[ "Transportation Hacks" ]
[ "diy", "driving", "go-kart", "hub motor", "kart" ]
https://hackaday.com/wp-…-image.png?w=800
[Peter Holderith] set out some time ago to build an electric go-kart. That by itself is not terribly unusual, but where his project diverts from the usual is in the fact that each of the four wheels has an integrated hub motor . It might not look it, but each wheel has an integrated hub motor. This kart project is a bi...
29
14
[ { "comment_id": "6751286", "author": "Mike Burke", "timestamp": "2024-04-18T21:01:22", "content": "My brain wants to play: A constraint mentioned in the linked article is that the battery cannot produce the 400 amps needed to max the quad wheel drive setup.In 1974, Mother Earth News published a proj...
1,760,371,941.771283
https://hackaday.com/2024/04/18/early-cd-player-teardown/
Early CD Player Teardown
Al Williams
[ "home entertainment hacks", "Teardown" ]
[ "cd player", "phase linear" ]
https://hackaday.com/wp-…/04/cd.png?w=800
While CD players are nothing new today, they were the height of high-tech in the early 1980s. [w1ngsfly] shows us the inside of a Phase Linear 9500 player from 1983. Not only does it have many components, but it is also mechanically unusual. The CD loads into a toaster-like slot and even pops out like a piece of toast....
16
9
[ { "comment_id": "6751251", "author": "Clóvis Fritzen", "timestamp": "2024-04-18T19:03:40", "content": "It always amazes me to look back at technology (in this case, of 40 years ago) and think how simple and ingenuously it was made. At the time this was a marvel, edge-cutting but now it looks just su...
1,760,371,941.644435
https://hackaday.com/2024/04/18/lyft-standing-up-for-better-ikea-bekant-control/
LYFT: Standing Up For Better IKEA BEKANT Control
Kristina Panos
[ "Lifehacks", "Microcontrollers" ]
[ "ikea", "IKEA BEKANT", "ikea desk" ]
https://hackaday.com/wp-…T-800.jpeg?w=800
The IKEA BEKANT sit/stand desk is kind of a lifesaver — even if you don’t personally go between sit and stand much, the adjustability makes sharing the desk a breeze. Sharing was the case in [Matthias]’ house during the pandemic, as he and his wife took turns using the desk. Switching between their two preferred height...
6
3
[ { "comment_id": "6751256", "author": "Simple", "timestamp": "2024-04-18T19:35:49", "content": "I went to school for drafting ~30 years ago. They had standing-height desks with tall “drafting chairs”. IMHO it is a cheaper, faster, just overall better solution. Stand when you want. Sit when you wa...
1,760,371,941.812116
https://hackaday.com/2024/04/18/mxm-powerful-misused-hackable/
MXM: Powerful, Misused, Hackable
Arya Voronova
[ "Featured", "laptops hacks", "Slider" ]
[ "amd", "gpu", "mxm", "NVIDIA" ]
https://hackaday.com/wp-…m_feat.png?w=800
Today, we’ll look into yet another standard in the embedded space: MXM. It stands for “Mobile PCI Express Module”, and is basically intended as a GPU interface for laptops with PCIe, but there’s way more to it – it can work for any high-power high-throughput PCIe device, with a fair few DisplayPort links if you need th...
28
12
[ { "comment_id": "6751173", "author": "Francis Theodore Catte", "timestamp": "2024-04-18T14:22:00", "content": "thanks to Apple using MXM at the time, my 2010 27″ iMac now has a Radeon Pro WX-4150 w/ 4GB of VRAM meant for an HP laptop of some kind, replacing the very dead Radeon HD 6750 it had when I...
1,760,371,941.909092
https://hackaday.com/2024/04/18/unraveling-the-secrets-of-apples-mysterious-fisheye-format/
Unraveling The Secrets Of Apple’s Mysterious Fisheye Format
Donald Papp
[ "Reverse Engineering", "Video Hacks" ]
[ "3d video", "fisheye", "immersive video", "stereoscopic" ]
https://hackaday.com/wp-…ding-2.jpg?w=800
Apple has developed a proprietary — even mysterious — “fisheye” projection format used for their immersive videos, such as those played back by the Apple Vision Pro. What’s the mystery? The fact that they stream their immersive content in this format but have provided no elaboration, no details, and no method for anyon...
12
5
[ { "comment_id": "6751111", "author": "WurstCase", "timestamp": "2024-04-18T12:04:31", "content": "The reason is rather simple, less distortion on the edges while still using all available pixels", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6751116", "aut...
1,760,371,941.963136
https://hackaday.com/2024/04/18/hacked-oscilloscope-plays-breakout-hints-at-more/
Hacked Oscilloscope PlaysBreakout, Hints At More
Dan Maloney
[ "Teardown", "Tool Hacks" ]
[ "breakout", "CH32F103", "debug", "DSO152", "firmware", "FNIRSI", "reverse engineering", "risc", "ST7789" ]
https://hackaday.com/wp-…eakout.png?w=800
You know things are getting real when the Dremel is one of the first tools you turn to after unboxing your new oscilloscope. But when your goal is to hack the scope to play Breakout , sometimes plastic needs to be sacrificed. Granted, the scope in question, a Fnirsi DSO152, only cost [David Given] from Poking Technolog...
8
4
[ { "comment_id": "6751066", "author": "poglad", "timestamp": "2024-04-18T09:56:36", "content": "In my naivety, I thought this would be a vector graphics game using only the standard inputs of the oscilloscope. 😐", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "6...
1,760,371,942.00794