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https://hackaday.com/2022/02/18/commodore-64-monitor-traces-i-o-calls-eases-debugging/ | Commodore 64 Monitor Traces I/O Calls, Eases Debugging | Donald Papp | [
"Retrocomputing",
"Software Development"
] | [
"c-64",
"c64",
"commodore",
"kernal",
"retro",
"trace"
] | Developing for the Commodore 64 can be a rewarding retrocomputing experience, and thanks to [Dave Van Wagner], things are easier with his
C64 IO_Monitor project
, which opens the door to logging and tracing Kernal I/O calls for closer inspection. That’s not a typo, by the way.
Kernal
is what handles the C64’s low-level... | 7 | 4 | [
{
"comment_id": "6427467",
"author": "Marvin",
"timestamp": "2022-02-18T09:55:35",
"content": "I always understood “KERNAL” as “KERN ALgorithmus” => “core algorithm” in german :D",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6427553",
"author": "Gra... | 1,760,372,786.753081 | ||
https://hackaday.com/2022/02/17/building-a-high-capacity-linear-servo-actuator/ | Building A High-Capacity Linear Servo Actuator | Lewin Day | [
"Misc Hacks"
] | [
"3d printing",
"linear actuator"
] | Linear actuators are useful things, moving things in straight lines rather than annoying circles like so many motors. [Retsetman] recently built
a linear servo actuator of his own design with accurate positional control.
The design relies on a carriage that moves along a threaded rod, perhaps the most rudimentary desig... | 19 | 5 | [
{
"comment_id": "6427457",
"author": "Krzysztof",
"timestamp": "2022-02-18T08:58:44",
"content": "It didn’t FAIL at 100kg, it just maxed out at 100kg, but could still release and work correctly after this. That’s a HUGE success in my opinion.",
"parent_id": null,
"depth": 1,
"replies": [... | 1,760,372,786.961282 | ||
https://hackaday.com/2022/02/17/high-power-laser-salvaged-from-headlights/ | High-Power Laser Salvaged From Headlights | Al Williams | [
"Laser Hacks"
] | [
"laser",
"laser headlights"
] | [DiodeGoneWild]’s latest video lives up to the name. He
takes apart a laser headlight
to recover a pretty powerful blue laser. You can see the video, below.
The headlights work with blue laser diodes that excite phosphor to produce white light. Removing the outside trappings revealed a three-pin laser diode (the case i... | 55 | 9 | [
{
"comment_id": "6427127",
"author": "Bob",
"timestamp": "2022-02-17T13:17:52",
"content": "A typical halogen headlight bulb is about 55 or 60 Watts. Efficiency is around 3.5% so 2 Watts radiated. A pair of 1W near UV lasers plus phosphor should yield about the same power output. The phosphors ar... | 1,760,372,787.140314 | ||
https://hackaday.com/2022/02/17/sending-midi-wirelessly-with-the-nrf24l01/ | Sending MIDI Wirelessly With The NRF24L01 | Lewin Day | [
"Musical Hacks"
] | [
"arduino",
"midi",
"nRF24L01+",
"wireless midi"
] | MIDI is a standard known by musicians and instruments all over the world. The basic twist on regular serial has helped studios around the world to work more efficiently. [Kevin] wanted to try sending MIDI data wirelessly, but rather than the typical Bluetooth solution,
decided to use the humble nRF24L01 instead.
The ci... | 6 | 4 | [
{
"comment_id": "6427083",
"author": "zoobab",
"timestamp": "2022-02-17T09:43:50",
"content": "I worked on a similar project with USB-midi dongles (some cheap WCH based ones were unreliable) connected to an openwrt router:https://github.com/ZyreApps/DeMidiSo that several pianos could play at the sam... | 1,760,372,787.320381 | ||
https://hackaday.com/2022/02/16/coin-operated-graphing-calculator-console/ | Coin-Operated Graphing Calculator Console | Chris Lott | [
"Retrocomputing"
] | [
"coin operated",
"graphing calculator",
"retro game console",
"Satire",
"video game console"
] | Longtime hacker [Peter Jansen] was so impressed with a piece in The Onion from last year that he decided to build
this coin-operated Texas Instruments graphing calculator console
on a whim (video below the break — warning vertical orientation).
With nothing more to go on than the fake mock-up pictured from the
original... | 8 | 6 | [
{
"comment_id": "6427038",
"author": "Alysson+Rowan",
"timestamp": "2022-02-17T06:24:18",
"content": "Please explain to me why I actually want one of these, because I do.I love it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6427057",
"author": "Leonard... | 1,760,372,787.277773 | ||
https://hackaday.com/2022/02/16/a-png-based-circuit-simulator/ | A PNG Based Circuit Simulator | Matthew Carlson | [
"Software Hacks"
] | [
"digital logic",
"python",
"simulation",
"simulator"
] | We’re sure thousands of hours have been spent in Minecraft implementing digital logic. Inspired by that, [lynnpepin] created a
digital logic simulator named Reso that is based on pixels rather than voxels
.
There are a few clever things here. First, different colors represent different parts. There are three different ... | 12 | 5 | [
{
"comment_id": "6426997",
"author": "Drone",
"timestamp": "2022-02-17T03:27:32",
"content": "Well, at least [Lynn Pepin] is honest and forthcoming. Quoting…Reso is bad because:* It’s inaccessible to those who are blind* It’s inaccessible to those who are colorblind* It’s inaccessible to those who h... | 1,760,372,787.365282 | ||
https://hackaday.com/2022/02/16/weird-phosphor-conversion-leds-found-in-cheap-led-string/ | Weird Phosphor Conversion LEDs Found In Cheap LED String | Lewin Day | [
"LED Hacks"
] | [
"led",
"phosphor",
"phosphor coating"
] | [Tim] recently found himself tinkering with a cheap string of LEDs. Far from an advanced, IC-controlled addressable set, these were merely a string with LEDs of four colors that could be switched on and off. However, digging in to the LEDs themselves
turned up a curious find
.
The LEDs were set up in a parallel/anti-pa... | 40 | 15 | [
{
"comment_id": "6426906",
"author": "Canoe",
"timestamp": "2022-02-17T00:28:50",
"content": "Neat!A Blue-Pump LED for red, yellow & green, like Blue-Pump white LEDs.I would be interesting to see if the current is the same for each color:– are the under laying Blue-Pumps the same for each color and/... | 1,760,372,787.437686 | ||
https://hackaday.com/2022/02/16/put-a-little-piece-of-the-james-webb-on-your-wall/ | Put A Little Piece Of The James Webb On Your Wall | Tom Nardi | [
"Art",
"Space"
] | [
"CNC router",
"james webb space telescope",
"jwst",
"mirror",
"wall art"
] | The James Webb Space Telescope (JWST) has become something of a celebrity here on Earth, and rightfully so. After decades of development, the $10 billion deep space observatory promises to peel back the mysteries of the universe in a way that simply hasn’t been possible until now. Plus, let’s be honest, the thing just ... | 59 | 19 | [
{
"comment_id": "6426739",
"author": "peter",
"timestamp": "2022-02-16T21:15:50",
"content": "This is really beautifully done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6426764",
"author": "Paul",
"timestamp": "2022-02-16T21:32:37",
"content":... | 1,760,372,786.907851 | ||
https://hackaday.com/2022/02/16/tiny-ethernet-cable-arms-race-spawns-from-reddit-discussion/ | Tiny Ethernet Cable Arms Race Spawns From Reddit Discussion | Lewin Day | [
"Network Hacks"
] | [
"ethernet",
"network cable",
"RJ-45"
] | If you’ve had any dealings with Cat 5 and Cat 6 cable, and let’s be honest, who hasn’t, you’ve probably wrestled with lengths anywhere from 1 meter to 25 meters if you’re hooking up a long haul. Network admins will be familiar with the 0.1 m variety for neat hookups in server cabinets. However, a Reddit community has r... | 58 | 17 | [
{
"comment_id": "6426642",
"author": "X",
"timestamp": "2022-02-16T19:39:00",
"content": "Yes this is a useful diagnostic tool for a dangling keystone jack, I just might make one for myself.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6427458",
"a... | 1,760,372,787.051635 | ||
https://hackaday.com/2022/02/16/linux-fu-fusing-hackaday/ | Linux Fu: Fusing Hackaday | Al Williams | [
"Hackaday Columns",
"Linux Hacks"
] | [
"c++",
"fuse",
"linux"
] | Unix and, by extension, Linux, has a mantra to make everything possible look like a file. Files, of course, look like files. But also devices, network sockets, and even system information show up as things that appear to be files. There are plenty of advantages to doing that since you can use all the nice tools like
gr... | 9 | 3 | [
{
"comment_id": "6426821",
"author": "sdffsdfsd",
"timestamp": "2022-02-16T22:34:33",
"content": "This is a horrible idea because some OSs consider files on the filesystem more trusted than web pages. MacOS, for example.Do. Not. Do. This.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,786.811566 | ||
https://hackaday.com/2022/02/16/when-battery-rebuilds-go-wrong-understanding-bmss-spot-welders-and-safety/ | When Battery Rebuilds Go Wrong: Understanding BMSs, Spot Welders, And Safety | Ryan Flowers | [
"Parts"
] | [
"battery",
"battery pack",
"lithium ion"
] | Batteries are amazing. Batteries are horrible. Batteries are a necessary evil in today’s world of portable everything. If you’re reading this sentence, even if it’s not on a mobile device, somewhere there is a battery involved. They’re that ubiquitous. There’s another thing batteries are: Expensive! And at $350 each fo... | 41 | 14 | [
{
"comment_id": "6426512",
"author": "amcnicoll",
"timestamp": "2022-02-16T17:16:47",
"content": "Most notebook-grade BMS chips feature several thresholds which will trigger a permanent failure if exceeded. A common (and IMO necessary) permanent failure mode is the “safety undervoltage” protection,... | 1,760,372,787.52193 | ||
https://hackaday.com/2022/02/16/teardown-alcatel-telic-1-minitel-terminal/ | Teardown: Alcatel Telic 1 Minitel Terminal | Jenny List | [
"Featured",
"Interest",
"Network Hacks",
"Retrocomputing",
"Slider"
] | [
"Alcatel",
"Minitel",
"terminal"
] | For British teenagers in the 1980s, the delights of 8-bit computers such as the Sinclair Spectrum, Commodore 64, or BBC Micro were firmly restricted to the offline arena. We would read about the BBS scene on the other side of the Atlantic, but without cheap local calls and with a modem costing a small fortune, the chan... | 34 | 21 | [
{
"comment_id": "6426450",
"author": "Rog77",
"timestamp": "2022-02-16T15:07:12",
"content": "The lack of free local calls in the UK is one of my historical laments, it set us back in the modern world somewhat – we would have had our own home grown versions of the big online services (and kept more ... | 1,760,372,787.634246 | ||
https://hackaday.com/2022/02/16/classic-ipods-are-super-upgradeable-in-2022/ | Classic IPods Are Super Upgradeable In 2022 | Lewin Day | [
"digital audio hacks",
"ipod hacks"
] | [
"ipod",
"micro sd",
"Rockbox"
] | The classic iPod was the MP3 player to beat back in the day, loaded with storage and with its characteristic click-wheel interface. [Ellie] had an iPod Video laying around, one of the more capable models that came out near the end of the product’s run,
and set out upgrading it for duty in the pandemic-wracked badlands ... | 35 | 14 | [
{
"comment_id": "6426422",
"author": "SPD",
"timestamp": "2022-02-16T13:17:24",
"content": "Here is good video on tearing down ipods by Dankpodshttps://www.youtube.com/watch?v=S83ZHf1GAeY",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6428874",
"auth... | 1,760,372,787.752811 | ||
https://hackaday.com/2022/02/16/vr-display-shows-cnc-lathe-operations-in-real-time/ | AR Display Shows CNC Lathe Operations In Real Time | Dave Rowntree | [
"cnc hacks",
"Tool Hacks"
] | [
"cnc",
"lathe",
"LinuxCNC",
"machining",
"metal lathe",
"turning"
] | [Kent VanderVelden] has come up with an interesting
AR system to assist operators who are monitoring CNC lathes
. (video, embedded, below) The idea is to first produce a ‘frozen’ video stream of the workpiece. This was achieved by placing a high-speed camera above the lathe, and triggering an image capture, synchronize... | 16 | 8 | [
{
"comment_id": "6426381",
"author": "mime",
"timestamp": "2022-02-16T09:37:52",
"content": "I think it’s awesome – such a straightforward way of augmented reality which adds more info but doesn’t get in the way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "... | 1,760,372,787.8084 | ||
https://hackaday.com/2022/02/15/you-can-send-midi-over-i2c-if-you-really-need-to/ | You Can Send MIDI Over I2C If You Really Need To | Lewin Day | [
"Musical Hacks"
] | [
"arduino",
"i2c",
"midi",
"Pi",
"Raspberry Pi Pico",
"uart"
] | The Musical Instrument Digital Interface has a great acronym that is both nice to say and cleanly descriptive. The standard for talking to musical instruments relies on a serial signal at 31250 bps, which makes it easy to transmit using any old microcontroller UART with a settable baud rate. However, [Kevin] has dived ... | 11 | 6 | [
{
"comment_id": "6426354",
"author": "Urgon",
"timestamp": "2022-02-16T07:41:10",
"content": "MIDIBox did that before. I made this module:http://ucapps.de/mbhp_usb_pic.htmlHere’s my version:https://www.elektroda.pl/rtvforum/topic2435767.htmlIt was designed to work with these modules over I2C:http://... | 1,760,372,787.681205 | ||
https://hackaday.com/2022/02/15/martian-wheel-control-algorithms-gain-traction/ | Martian Wheel Control Algorithms Gain Traction | Ryan Flowers | [
"Science",
"Space"
] | [
"algorithm",
"Curiosity",
"curiosity rover",
"mars",
"mars rover",
"traction control"
] | Imagine the scene: You’re puttering along in your vehicle when, at least an hour from the nearest help, one of your tires starts losing air. Not to worry! You’ve got a spare tire along with the tools and knowhow to change it. And if that fails, you can call roadside assistance. But what if your car isn’t a car, has met... | 13 | 7 | [
{
"comment_id": "6426377",
"author": "Gravis",
"timestamp": "2022-02-16T09:17:36",
"content": "Not a lot of info on the actual algorithm. This is the whole thing.“The traction control algorithm uses real-time data to adjust each wheel’s speed, reducing pressure from the rocks. The software measures... | 1,760,372,788.147806 | ||
https://hackaday.com/2022/02/15/anti-curl-sandpaper-storage-is-impressive/ | Anti-Curl Sandpaper Storage Is Impressive | Kristina Panos | [
"Misc Hacks"
] | [
"cam clamp",
"clamp",
"sandpaper",
"storage"
] | Maybe it’s the humidity, maybe it’s the cold weather. Something is making [Laura Kampf]’s nice fabric-backed sandpaper curl up into scrolls the second it comes out of the package. So you can understand why she urgently wanted to make
a storage system
that would be easy to flip through like a record bin, but also provid... | 15 | 11 | [
{
"comment_id": "6426221",
"author": "PWalsh",
"timestamp": "2022-02-16T00:09:32",
"content": "I have one of those multi-document inboxes with 8 shelves, just buy the paper in sheets and lay flat.(Inbox was almost free at the recycle place.)",
"parent_id": null,
"depth": 1,
"replies": []... | 1,760,372,788.032049 | ||
https://hackaday.com/2022/02/15/ps2-memory-card-iso-loader-offers-classic-gaming-bliss/ | PS2 Memory Card ISO Loader Offers Classic Gaming Bliss | Tom Nardi | [
"classic hacks",
"Playstation Hacks"
] | [
"homebrew",
"iso",
"playstation 2",
"ps2",
"sd card",
"spi"
] | It used to be that to play a console game, you just had to plug in a cartridge or put a CD/DVD in the optical drive. But these days, with modern titles ballooning up to as much as 100 GB, you’ve got no choice but to store them on the system’s internal hard disk drive. While that can lead to some uncomfortable data mana... | 30 | 7 | [
{
"comment_id": "6426153",
"author": "KasTasMykolas",
"timestamp": "2022-02-15T21:43:36",
"content": "SMB on PS2 slims ;)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6426174",
"author": "Ergotron",
"timestamp": "2022-02-15T22:47:50",
... | 1,760,372,788.424383 | ||
https://hackaday.com/2022/02/15/filament-dry-box-design-goes-way-over-the-top/ | Filament Dry Box Design Goes Way Over The Top | Dan Maloney | [
"3d Printer hacks"
] | [
"api",
"ESP32",
"filament",
"heater",
"humidity",
"hygroscopic",
"IoT",
"pid"
] | There’s a fine line between simple feature creep and going over the top when it comes to project design. It’s hard to say exactly where that line is, but we’re pretty sure that
this filament dry box
has at least stepped over it, and might even have erased it entirely.
Sure, we all know the value of storing 3D printer f... | 36 | 12 | [
{
"comment_id": "6426107",
"author": "Tweepy",
"timestamp": "2022-02-15T19:45:31",
"content": "Sometimes, it look like 3D printing scene is more about fiddling with hardware stuff around the computer than actually make useful parts.If you look at the effort many 3D printer enthusiasts go to pimp up ... | 1,760,372,788.224126 | ||
https://hackaday.com/2022/02/15/so-long-said-all-the-tank-driving-fish/ | “So Long,” Said All The Tank-Driving Fish | Kristina Panos | [
"Hackaday Columns",
"Robots Hacks",
"Science"
] | [
"fish",
"goldfish",
"goldfish car",
"robotics",
"science",
"training"
] | Though some of us are heavily assisted by smart phone apps and delivery, humans don’t need GPS to find food. We know where the fridge is. The grocery store. The drive-thru. And we don’t really need a map to find shelter, in the sense that shelter is easily identifiable in a storm. You might say that our most important ... | 19 | 8 | [
{
"comment_id": "6426082",
"author": "monsonite",
"timestamp": "2022-02-15T18:39:59",
"content": "Pigeons were trained to “pilot” early missiles.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6426120",
"author": "anonymous",
"timestamp": "20... | 1,760,372,788.095753 | ||
https://hackaday.com/2022/02/15/dead-mouse-reincarnated-as-macropad/ | Dead Mouse Reincarnated As Macropad | Kristina Panos | [
"Peripherals Hacks"
] | [
"macro pad",
"macropad",
"mouse"
] | [Taylor] wanted to join the cool kids club and build a macropad for CAD work and video editing, but didn’t want to do it the traditional way with an Arduino. We can get behind that. In fact, [Taylor] wanted to reuse some old piece of tech if possible, which is even better. With a little luck,
they found a used gaming m... | 9 | 6 | [
{
"comment_id": "6426045",
"author": "Iván Stepaniuk",
"timestamp": "2022-02-15T17:25:23",
"content": "nice hack, and nice keycaps!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6426217",
"author": "Robotgrandpa",
"timestamp": "2022-02-16T00... | 1,760,372,788.275146 | ||
https://hackaday.com/2022/02/15/first-days-with-a-new-microscope/ | First Days With A New Microscope | Dan Maloney | [
"Featured",
"Original Art",
"Repair Hacks",
"Skills",
"Slider"
] | [] | For big-ticket purchases, I tend to do a lot of research before I open my wallet. I like to at least have the illusion that when I send my money off to a far-away stranger, I’m likely to get back something of equal value in a reasonable timeframe that does what I want it to do. So I tend more toward the “analysis paral... | 35 | 18 | [
{
"comment_id": "6425995",
"author": "some guy",
"timestamp": "2022-02-15T15:12:59",
"content": "I think i have that exact same microscope because of that video. However i don’t think i paid (and would pay) 140€ shipping to Europe!!! (microscope is currently 330€ without shipping). Also beware of im... | 1,760,372,788.68637 | ||
https://hackaday.com/2022/02/15/print-a-sketch-turns-any-surface-into-a-printed-circuit-board/ | Print-a-Sketch Turns Any Surface Into A Printed Circuit Board | Robin Kearey | [
"Misc Hacks"
] | [
"conductive ink",
"handheld printer",
"printed circuits"
] | Although powerful design software and cheap manufacturing services have made rolling your own PCBs easier than ever, there are some situations where a piece of FR-4 just doesn’t cut it: think art projects with hidden LEDs or biomedical applications that need to attach to the human body. For such occasions, [Narjes Pour... | 33 | 13 | [
{
"comment_id": "6425955",
"author": "JR",
"timestamp": "2022-02-15T14:03:39",
"content": "It’s neat but the print head it uses is several hundred dollars",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6425966",
"author": "Joe Tom Collins",
"timestamp"... | 1,760,372,788.496446 | ||
https://hackaday.com/2022/02/15/accurately-track-your-mains-frequency/ | Accurately Track Your Mains Frequency | Jenny List | [
"clock hacks"
] | [
"mains frequency",
"power grid",
"Teensy"
] | Depending upon where in the world you live, AC mains frequency is either 50Hz or 60Hz, and that frequency is maintained accurately enough over time that it can be used as a time reference for a clock. Oddly it’s rarely exactly that figure though, instead it varies slightly with load on the network and the operators wil... | 27 | 10 | [
{
"comment_id": "6425900",
"author": "DKE",
"timestamp": "2022-02-15T11:53:17",
"content": "Interestingly adjacent.Tom Scott video discussing extracting the mains frequency variations from video and, in combination with logged frequency data, establishing a forensic timestamp.https://www.youtube.com... | 1,760,372,788.561633 | ||
https://hackaday.com/2022/02/14/a-hombrew-retro-laptop/ | A Hombrew Retro Laptop | Al Williams | [
"Raspberry Pi",
"Retrocomputing"
] | [
"raspberry pi",
"retrocomputing"
] | We feel bad when we see a retrocomputer project and think, “Hey! That’s not that old.” But, usually, when we think about it, it really is. Take the
Penkesu
. It looks like one of the little organizer computers that were popular — ok — a long time ago.
Inside is a Raspberry Pi Zero 2W, a 7.9 inch 400×1280 screen and a 4... | 11 | 6 | [
{
"comment_id": "6425799",
"author": "RÖB",
"timestamp": "2022-02-15T07:19:02",
"content": "That’s our job.But most of the time we’re just arguing about the different spelling and gamma of different versions of engrish.It’s all good. Just make sure you have popcorn.",
"parent_id": null,
"dep... | 1,760,372,788.608199 | ||
https://hackaday.com/2022/02/14/printing-magnets/ | Printing Magnets | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"ferrite",
"magnets"
] | A research center in Spain has been working on ways to solve recent supply chain issues. One of these issues is a shortage of materials to make magnets. Their answer?
Recycle ferrite residue
by treating it and mixing it with ABS for 3D printing.
The mixing of ferrite with a polymer isn’t the key though, instead the tri... | 29 | 6 | [
{
"comment_id": "6425731",
"author": "Francois Otis",
"timestamp": "2022-02-15T04:42:39",
"content": "“environmentally more friendly “: It’s funny you mention it. I don’t think any of our plastic aficionados here give a damn about environment. Everything on this site sits on the idea of production,... | 1,760,372,788.754134 | ||
https://hackaday.com/2022/02/14/as-fast-as-a-speeding-bullet/ | As Fast As A Speeding Bullet | Al Williams | [
"Arduino Hacks",
"Laser Hacks"
] | [
"chronograph",
"CoilGun",
"laser"
] | [Electronoobs] built a coil gun and the obvious question is: how fast is the projectile? To answer it, he built a
chronograph
suitable for timing a bullet. The principle is straightforward. A laser and a light sensor would mark the entry and exit of the projectile over a known distance. As it turns out, there are some ... | 42 | 13 | [
{
"comment_id": "6425679",
"author": "Ghent+the+Slicer",
"timestamp": "2022-02-15T01:46:34",
"content": "But why use laser? Regular LED would not work?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6425721",
"author": "John",
"timestamp": "2... | 1,760,372,788.891885 | ||
https://hackaday.com/2022/02/14/a-solari-mechanical-digital-clock-hack-with-a-little-extra/ | A Solari Mechanical Digital Clock Hack With A Little Extra | Dave Rowntree | [
"clock hacks"
] | [
"flip clock",
"retrofit",
"servo",
"stm32"
] | [Alfredo Cortellini] was perusing an antique shop in Bologna, and came across a nice example of a late 1950s timepiece, in the shape of a Solari Cifra 5 slave clock, but as the shop owner warned, it could never tell the time by itself. That sounded like a challenge, and the resulting hack is a nice,
respectful tweak of... | 7 | 3 | [
{
"comment_id": "6425601",
"author": "John",
"timestamp": "2022-02-14T22:14:21",
"content": "Very nice idea. I especially like the manual flipper. Personally, I would have worked on that base a bit more and remove the ugly 2 tone OLED. A couple of status LEDs that only turn on few a minute after a m... | 1,760,372,789.047022 | ||
https://hackaday.com/2022/02/14/3d-printing-tiny-metal-parts/ | 3D Printing Tiny Metal Parts | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"metal 3d printing"
] | It may sound like a pop band, but
μ-WAAM
is actually a 3D printing technique for making small metal parts from the NOVA University Lisbon. Of course, WAAM stands for wire arc additive manufacturing, a well-known technique for 3D printing in metal. The difference? The new technique uses 250 μm wire stock instead of the ... | 7 | 4 | [
{
"comment_id": "6425543",
"author": "Robb Smith",
"timestamp": "2022-02-14T20:19:05",
"content": "Awesome! I think in the picture it should read “Substrate” not “Subtract”. We don’t need no stinking subtraction!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id":... | 1,760,372,788.807174 | ||
https://hackaday.com/2022/02/14/predicting-the-future-hows-that-working-out/ | Predicting The Future: How’s That Working Out? | Al Williams | [
"Hackaday Columns",
"Rants",
"Slider"
] | [
"the future"
] | With 2022 off to a good start, it is about time to let go of all those New Year’s resolutions that didn’t quite work out. The scale’s needle didn’t reverse, our nails are still bitten, and we are still binge-watching
Breaking Bad
instead of reading the classics. But, of course, there’s always the future where we just k... | 73 | 23 | [
{
"comment_id": "6425497",
"author": "BT",
"timestamp": "2022-02-14T18:56:15",
"content": "Ability to edit HaD comments? :-P",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6425504",
"author": "Twisty Plastic",
"timestamp": "2022-02-14T19:14:2... | 1,760,372,789.001926 | ||
https://hackaday.com/2022/02/13/no-leds-required-for-this-servo-controlled-larson-scanner/ | No LEDs Required For This Servo-Controlled Larson Scanner | Dan Maloney | [
"Misc Hacks"
] | [
"animation",
"ESP32",
"fade",
"hal",
"hardware abstraction layer",
"larson scanner",
"pwm",
"servo"
] | All things considered, it’s pretty easy to get one LED is a strip to light up sequentially, and have it bounce back and forth. Turning that simple animation into a real Larson scanner, with smooth transitions and controlled fade-out, is another thing entirely. And forgetting the LEDs altogether and making
a servo-opera... | 31 | 7 | [
{
"comment_id": "6425019",
"author": "CityZen",
"timestamp": "2022-02-13T21:40:47",
"content": "A slight improvement would be if the redness could fade out from either the left side or the right side. This would make the animation a bit more symmetric.",
"parent_id": null,
"depth": 1,
"... | 1,760,372,789.16111 | ||
https://hackaday.com/2022/02/13/pump-up-the-resin/ | Pump Up The Resin | Al Williams | [
"3d Printer hacks"
] | [
"3d printer",
"peristaltic pump"
] | Sometimes the best ideas are simple and seem obvious after you’ve heard them. [Danny] showed us a great idea that fits that description.
He uses a peristaltic pump
to move resin in and out of his print bed. (Video, embedded below.) Normally, you remove the tank and pour the resin out into a container. With the pump, yo... | 13 | 4 | [
{
"comment_id": "6424994",
"author": "Jan Mrázek",
"timestamp": "2022-02-13T18:03:08",
"content": "Or you go with much less sophisticated tools that are much easier to clean – a spout and spatula that is precisely shaped for the resin tank profile:https://www.youtube.com/watch?v=mK9suvwUhDs",
"p... | 1,760,372,789.096069 | ||
https://hackaday.com/2022/02/13/weather-station-predicts-air-quality/ | Weather Station Predicts Air Quality | Bryan Cockfield | [
"Machine Learning"
] | [
"air quality",
"algorithm",
"anemometer",
"arduino",
"machine learning",
"ozone",
"raspberry pi",
"sensor",
"tensorflow"
] | Measuring air quality at any particular location isn’t too complicated. Just a sensor or two and a small microcontroller is generally all that’s needed. Predicting the upcoming air quality is a little more complicated, though, since so many factors determine how safe it will be to breathe the air outside. Luckily, thou... | 7 | 3 | [
{
"comment_id": "6424990",
"author": "Gravis",
"timestamp": "2022-02-13T17:34:40",
"content": "Very cool though I would be far more impressed if it did all the computing using a lower power MCU powered with solar power. Yes, it would be slow and require additional memory but a weather station is ou... | 1,760,372,789.203905 | ||
https://hackaday.com/2022/02/13/3d-printing-rainbows/ | 3D Printing Rainbows | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"diffraction grating"
] | [The Action Lab] had a very serious technical problem. His daughter wanted to 3D print sparkly unicorns. But how do you make a 3D print sparkly? Turns out, he had used a diffraction grating before to make rainbow-enhanced chocolate.
The method turns out to be surprisingly simple. Using a diffraction grating as a print ... | 18 | 11 | [
{
"comment_id": "6424958",
"author": "erik",
"timestamp": "2022-02-13T13:00:15",
"content": "cool idea!depending on the material of the diffraction grating it should be possible to iron on the pattern afterwords.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "... | 1,760,372,789.253876 | ||
https://hackaday.com/2022/02/13/sticker-brings-the-heat/ | Sticker Brings The Heat | Al Williams | [
"Misc Hacks"
] | [
"flex PCB",
"flexible PCB",
"PCB Heater"
] | [Carl] is always looking at making heater plates for PCB reflow and other applications. In his latest video, he shows how he is using thin flexible PCBs with adhesive backs as
stickers that get hot
. You can find gerber files and design files on
GitHub
.
You might think that this is a pretty simple thing to do with a f... | 17 | 7 | [
{
"comment_id": "6424964",
"author": "Dan",
"timestamp": "2022-02-13T14:24:19",
"content": "With the right adhesive, sounds like it could find medical usage e.g. for pain relief?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6424975",
"author": "Ait... | 1,760,372,789.441115 | ||
https://hackaday.com/2022/02/12/epoxy-resin-night-light-is-an-amazing-ocean-themed-build/ | Epoxy Resin Night Light Is An Amazing Ocean-Themed Build | Lewin Day | [
"Misc Hacks"
] | [
"lamp",
"resin",
"resin pour",
"river table",
"water lamp"
] | We’ve all seen those “river” tables where a lovely old piece of tree is filled with some blue resin to create a water-like aesthetic. This project from [smartyleowl] takes that basic idea, but pushes it further, and the result is a beautiful build
that is as much a diorama as it is a simple lamp.
First up, an appropria... | 17 | 8 | [
{
"comment_id": "6424948",
"author": "srgeoi",
"timestamp": "2022-02-13T10:41:42",
"content": "If you want to hate on peoples creativity then you should go back to E**blog forums.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6424949",
"author": "MS",
... | 1,760,372,789.49881 | ||
https://hackaday.com/2022/02/12/machining-waveguides-for-122-ghz-operation-is-delicate-work/ | Machining Waveguides For 122 GHz Operation Is Delicate Work | Lewin Day | [
"Radio Hacks"
] | [
"122 GHz",
"lathe",
"machining",
"mmwave",
"mmwave radar",
"radar",
"radio"
] | Millimeter-wave Radars used in modern cars for cruise control and collision avoidance are usually designed to work at ranges on the order of 100 meters or so. With some engineering nous, however, experimenters have gotten these devices sending signals over ranges of up to 60 km in some tests. [Machining and Microwaves]... | 21 | 8 | [
{
"comment_id": "6424913",
"author": "jpa",
"timestamp": "2022-02-13T06:38:27",
"content": "Heh, apparently gaming YouTube algorithms has gotten so far that this channel is sticking AI-generated female face in the corner of the screenshot.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,789.564557 | ||
https://hackaday.com/2022/02/12/spin-some-spudgers-from-secondhand-silverware/ | Spin Some Spudgers From Secondhand Silverware | Kristina Panos | [
"green hacks",
"Tool Hacks"
] | [
"cutlery",
"prying",
"spudger"
] | Even though it’s not the right tool for the job, we’ve all used a flat head screwdriver for other purposes. Admit it — you’ve pried open a thing or two with that one in the toolbox that’s all dirty and dinged up anyway. But oftentimes, screwdrivers just aren’t thin enough. What you need is a spudger, which for some rea... | 20 | 11 | [
{
"comment_id": "6424873",
"author": "Bill",
"timestamp": "2022-02-13T00:32:06",
"content": "Excellent idea!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6424874",
"author": "Hirudinea",
"timestamp": "2022-02-13T00:51:33",
"content": "Used a flat... | 1,760,372,789.627584 | ||
https://hackaday.com/2022/02/12/this-esp32-pico-wristwatch-has-plenty-of-potential/ | This ESP32 Pico Wristwatch Has Plenty Of Potential | Dave Rowntree | [
"clock hacks",
"LED Hacks",
"Microcontrollers"
] | [
"0603",
"circular",
"ESP32-Pico-D4",
"KiCAD",
"led",
"USB C",
"watch",
"wrist"
] | First hand-built prototype. Nurse! isopropyl alcohol, stat!
Prolific hacker [Sulfuroid] is a medical doctor by day, and an electronics hobbyist by night, and quite how he finds the time, we have no idea.
The project we want to highlight is an
ESP32 based LED smart watch
, which we’ll sure you’ll agree, looks pretty nic... | 12 | 6 | [
{
"comment_id": "6424879",
"author": "Alan",
"timestamp": "2022-02-13T01:57:02",
"content": "For fancy or stylish designs, I prefer pocket watches which can be physically larger.I also like full hunter (protective lid). Just like laptops, you can add a sensor to detect a closed lid – and turn off th... | 1,760,372,789.726945 | ||
https://hackaday.com/2022/02/12/color-dot-puzzle-will-wrinkle-your-brain/ | Color Dot Puzzle Will Wrinkle Your Brain | Lewin Day | [
"Toy Hacks"
] | [
"puzzle"
] | 2022 is a good year for puzzles, and if you’re getting tired of Wordle, you might be after a new challenge. This color puzzle from [Sebastian Coddington]
could be just what you’re looking for.
[Sebastian] describes the 4×4 Color Dot Puzzle as a sort of combination of the ideas behind the Rubik’s Cube and the 15 puzzle.... | 3 | 2 | [
{
"comment_id": "6424881",
"author": "RÖB",
"timestamp": "2022-02-13T02:13:44",
"content": "I’m seeing 36 RGB addressable LEDs, 16 buttons and a microcontroller.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6424935",
"author": "helge",
"tim... | 1,760,372,789.674267 | ||
https://hackaday.com/2022/02/12/the-real-world-strikes-back/ | The Real World Strikes Back | Elliot Williams | [
"Hackaday Columns",
"Rants",
"Robots Hacks"
] | [
"learning",
"logo",
"newsletter",
"Practice",
"robots",
"theory"
] | My son was into “
Secret Coders
“, a graphic novel series wherein a pair of kids discover and thwart a plot to take over the world by learning to program in the
LOGO computer language
. When I told him that these “turtle bots” were originally actually real physical things, he wanted one. So we built one out of some nic... | 17 | 11 | [
{
"comment_id": "6424710",
"author": "Superpomme",
"timestamp": "2022-02-12T15:22:42",
"content": "Nice, looks great.BTW, if anyone can help me with this, it would be much appreciated. I bought a couple of Valient Roamers (the plain grey ones rather than the translucent turtle versions) with the id... | 1,760,372,789.79249 | ||
https://hackaday.com/2022/02/12/tutorial-teaches-you-to-use-neopixels-with-micropython/ | Tutorial Teaches You To Use Neopixels With Micropython | Lewin Day | [
"LED Hacks"
] | [
"addressable led",
"addressable leds",
"glowables",
"led",
"led strips",
"neopixel",
"ws2812b"
] | Addressable LEDs are wonderful things, with products like Neopixels making it easy to create all kinds of vibrant, blinking glowables. However, for those without a lot of electronics experience, using these devices can seem a bit daunting. [Bhavesh Kakwani] is here to help, with his tutorial on
getting started with Neo... | 4 | 3 | [
{
"comment_id": "6424760",
"author": "JC Silva",
"timestamp": "2022-02-12T17:33:58",
"content": "Can we get a tag for every micropython project?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6694006",
"author": "RND()",
"timestamp": "2023-10... | 1,760,372,789.831031 | ||
https://hackaday.com/2022/02/12/simple-dev-board-module-socket/ | Simple Dev Board Module Socket | Chris Lott | [
"Microcontrollers"
] | [
"dev board",
"diy",
"module",
"mounting",
"socket"
] | When you’re building a quick prototype or a one-off project it’s nice to be able to securely mount the various modules and development boards. Sometimes these boards have mounting holes, but often they don’t. As an example from the latter category, digital music instrument maker and performer [DIYDSP] shows us
how to b... | 16 | 11 | [
{
"comment_id": "6424579",
"author": "none",
"timestamp": "2022-02-12T09:25:34",
"content": "What, perfboard is a hack now?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6424920",
"author": "Duder",
"timestamp": "2022-02-13T08:03:27",
... | 1,760,372,789.888696 | ||
https://hackaday.com/2022/02/11/homemade-probe-for-3d-printer-3/ | Homemade Probe For 3D Printer: $3 | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"auto bed leveling",
"z probe"
] | You have a few choices if you want to use a probe to level your 3D printer bed. Rarely, you’ll see optical or capacitive probes. More commonly, though, your probe will sense a metal print or uses a physical probe to touch the print bed. [Design Prototype Test] has long used a BLTouch which uses the latter method. Howev... | 38 | 13 | [
{
"comment_id": "6424630",
"author": "Grawp",
"timestamp": "2022-02-12T11:35:17",
"content": "My biggest problem with all these Z-axis only touch based approaches is that you can’t do *automatic* XY skew calibration which is really important unless you got proper ‘machinist-grade’ rigid frame and li... | 1,760,372,789.972696 | ||
https://hackaday.com/2022/02/14/retrotechtacular-raw-video-from-inside-a-1980s-arcade/ | Retrotechtacular: Raw Video From Inside A 1980s Arcade | Drew Littrell | [
"Games",
"Hackaday Columns",
"Retrotechtacular"
] | [
"arcade",
"retro",
"retro arcade",
"retrotechtacular",
"VHS"
] | It was just this year that
Sega left the arcade business for good
. A company synonymous with coin-op games for over a half century completely walked away from selling experiences you can only get on location. No more
Outrun
or
Virtua Fighter
machines, because arcades these days tend to resemble
The House of the Dead
.... | 42 | 22 | [
{
"comment_id": "6425439",
"author": "andarb",
"timestamp": "2022-02-14T16:44:49",
"content": "My opinion has been that – to survive as anything like what we remember – arcades must provide experiences way beyond what you can get on your couch at a price that a kid with below-average allowance can a... | 1,760,372,790.18873 | ||
https://hackaday.com/2022/02/14/nasa-taps-lockheed-to-bring-back-a-piece-of-mars/ | NASA Taps Lockheed To Bring Back A Piece Of Mars | Tom Nardi | [
"Current Events",
"Featured",
"Original Art",
"Slider",
"Space"
] | [
"ExoMars",
"hydrazine",
"ion engine",
"mars",
"Mars Ascent Vehicle",
"mav",
"rover",
"sample return",
"solid rocket"
] | Since NASA’s
Mariner
spacecraft made the first up-close observations of Mars in 1964, humanity has lobbed a long line of orbiters, landers, and rovers towards the Red Planet. Of course, it hasn’t all been smooth sailing. History, to say nothing of the planet’s surface, is littered with Martian missions that didn’t quit... | 36 | 9 | [
{
"comment_id": "6425370",
"author": "Dave Boltman",
"timestamp": "2022-02-14T15:09:17",
"content": "Interesting!“The MAV will not only make history as the first rocket to lift off from a celestial body other than the Earth” – … or the moon, of course 😀 Or was that a hoax?",
"parent_id": null,
... | 1,760,372,790.100226 | ||
https://hackaday.com/2022/02/14/fail-of-the-week-a-bigger-hacksaw-isnt-a-better-hacksaw/ | Fail Of The Week: A Bigger Hacksaw Isn’t A Better Hacksaw | Dan Maloney | [
"Fail of the Week"
] | [
"bandsaw",
"cutting",
"fail of the week",
"fotw",
"hacksaw",
"handtools",
"metalworking"
] | If we’re being honest, the main reason to buy a power tool is to avoid the pain of using one’s muscles. Oh sure, we dress it up with claims that a power tool will make us more productive, or give better results, but more often than not it’s the memory of how your forearm feels after a day of twisting a screwdriver that... | 23 | 9 | [
{
"comment_id": "6425292",
"author": "IIVQ",
"timestamp": "2022-02-14T12:12:52",
"content": "Probably with a wider blade you could’ve gotten rid of part of the wobble.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6425303",
"author": "Earle Rich",
... | 1,760,372,790.250328 | ||
https://hackaday.com/2022/02/14/backpack-board-for-oleds-boasts-fancy-features/ | Backpack Board For OLEDs Boasts Fancy Features | Donald Papp | [
"LED Hacks",
"Microcontrollers"
] | [
"backpack",
"i2c",
"oled",
"osh park",
"pcb"
] | Back when LCD character displays based on the HD44780 controller were the bee’s knees, a way to make them easier to work with came in the form of “backpack” PCBs, which provided an accessible serial interface and superior display handling at the same time. [Barbouri] has updated that idea with
a backpack board that mou... | 6 | 2 | [
{
"comment_id": "6425249",
"author": "RÖB",
"timestamp": "2022-02-14T10:18:52",
"content": "Whenever I try to design one of these boards for the common LCD1602 / 2004, I always end up at the same place.I want to control the contrast – so PWM into a capacitor to get -ve to +ve range and another cap t... | 1,760,372,790.296799 | ||
https://hackaday.com/2022/02/13/this-minibike-will-land-you-in-hot-water/ | This Minibike Will Land You In Hot Water | Jenny List | [
"Transportation Hacks"
] | [
"copper tube",
"minibike",
"water boiler",
"water heater"
] | The minibike is an American phenomenon which fascinates those of us from countries in which such contraptions are illegal on the road; they seem to deliver bucketloads of low-octane fun in which we are unable to participate. [HowToLou] has one, and as it’s something for use in the Great Outdoors it naturally requires s... | 32 | 9 | [
{
"comment_id": "6425143",
"author": "Dr",
"timestamp": "2022-02-14T06:23:08",
"content": "https://c.tenor.com/9AxpRD2d5d0AAAAC/blinking-eyes-man.gif",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6425145",
"author": "Judy",
"timestamp": "2022-02-14T06... | 1,760,372,790.487408 | ||
https://hackaday.com/2022/02/13/complicated-calculated-solution-to-3d-printed-puzzle/ | Complicated Calculated Solution To 3D-Printed Puzzle | Bryan Cockfield | [
"3d Printer hacks"
] | [
"3d modeling",
"3d printer",
"dodecahedral",
"holonomy",
"mathematician",
"maze",
"oklahoma state",
"puzzle"
] | 3D printers have made a lot of things possible that were either extremely difficult or downright impossible with traditional tooling. Certain shapes lend themselves to 3D printing, and materials and tooling costs are also generally greatly reduced as well. One thing that may not be touched on as often, though, is their... | 10 | 5 | [
{
"comment_id": "6425095",
"author": "Grounded",
"timestamp": "2022-02-14T04:04:53",
"content": "No Wumpus?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6425116",
"author": "John",
"timestamp": "2022-02-14T04:52:07",
"content": "I hate dodecahedr... | 1,760,372,790.343932 | ||
https://hackaday.com/2022/02/13/hackaday-links-february-13-2022/ | Hackaday Links: February 13, 2022 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"battlezone",
"coronal mass ejection",
"delivery bot",
"drift racing",
"hackaday links",
"Hackers on Planet Earth",
"hope",
"james webb space telescope",
"jwst",
"pong",
"satellite",
"solar flare",
"space invaders",
"Starlink"
] | If you need evidence that our outwardly peaceful little neck of the solar system is actually a dangerous place, look no further than the
40 newly launched Starlink satellites that were just clobbered out of orbit
. It seems that the SpaceX launch on February 3 was ill-timed, as it coincided with the arrival of energeti... | 31 | 7 | [
{
"comment_id": "6425118",
"author": "John",
"timestamp": "2022-02-14T04:55:13",
"content": "Am I the only one who finds those terrible satellites burning up on reentry to be extremely cathartic? Light pollution in all its forms is terrible. Keep your satellite internet, I prefer fiber and the abili... | 1,760,372,792.183188 | ||
https://hackaday.com/2022/02/11/pyrotechnic-posters-are-fireworks-drawn-on-paper/ | Pyrotechnic Posters Are Fireworks Drawn On Paper | Lewin Day | [
"Art"
] | [
"art",
"fire",
"pyrotechnics"
] | There’s a deep love many humans feel for fire; it’s often cited as one of the most important discoveries that led to the founding of civilization. The work of
French artistic duo [Pinaffo-Pluvinage]
definitely hits upon that, combining pyrotechnics with paper to make what are probably the most exciting posters you’ve e... | 15 | 14 | [
{
"comment_id": "6424494",
"author": "Not Important",
"timestamp": "2022-02-12T05:02:34",
"content": "The creators are French, and it’s February. I think you’re grasping at straws just a bit here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6424496",
"a... | 1,760,372,792.090972 | ||
https://hackaday.com/2022/02/11/maybe-the-simplest-cloud-chamber/ | Maybe The Simplest Cloud Chamber | Al Williams | [
"Science"
] | [
"cloud chamber",
"ionizing radiation",
"wilson cloud chamber"
] | Have you ever seen a Wilson cloud chamber — a science experiment that lets you visualize ionizing radiation? How hard would it be to build one? If you follow [stoppi’s] example,
not hard at all
(German,
Google Translate link
). A plastic bottle. some tape, a flashlight, some water, hot glue, and — the only exotic part ... | 11 | 6 | [
{
"comment_id": "6424452",
"author": "Michael Black",
"timestamp": "2022-02-12T00:11:09",
"content": "A cloud chamber was part of whatAmerican Basic Science Club sent out. The Gilber Atomic Energy Lab included a cloud chamber too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,372,792.398221 | ||
https://hackaday.com/2022/02/11/one-tool-twists-wires-and-skewers-shish-kebabs/ | One Tool Twists Wires, And Skewers Shish Kebabs | Chris Lott | [
"how-to"
] | [
"diy",
"stranded wire",
"tool",
"twisted wire"
] | Twisting stranded wire with your fingers in preparation for tinning and/or soldering is almost a reflex for folks making electronic assemblies. But what if the wires are too close to get your fingers around, or you have the fingers of a sumo wresters? Well [DIYDSP]
has a solution for you
(see video below the break) tha... | 19 | 9 | [
{
"comment_id": "6424411",
"author": "That kid",
"timestamp": "2022-02-11T21:18:12",
"content": "phenomenal…!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6424437",
"author": "Dan",
"timestamp": "2022-02-11T23:13:39",
"content": "That’s as effe... | 1,760,372,792.344828 | ||
https://hackaday.com/2022/02/11/tiny-tv-celebrates-the-forgotten-tech-of-crts/ | Tiny TV Celebrates The Forgotten Tech Of CRTs | Dan Maloney | [
"classic hacks",
"Raspberry Pi"
] | [
"analog",
"cathode ray tube",
"crt",
"pal",
"retro",
"television",
"tv",
"viewfinder"
] | For those of us who grew up before the Internet, the center of pretty much every house was the TV. It was the shrine before which we all worshipped, gathering together at the appointed times to receive the shared wisdom of mass entertainment. In retrospect, it really wasn’t that much. But it’s what we had.
Content asid... | 35 | 8 | [
{
"comment_id": "6424388",
"author": "Tom Brusehaver",
"timestamp": "2022-02-11T19:35:48",
"content": "I have a Singer Friden 1160 calculator that uses an oscilloscope CRT.https://time.com/2854513/ted-cruz-canadian-citizenship/",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,792.517127 | ||
https://hackaday.com/2022/02/11/pick-and-place-hack-chat-reveals-assembly-secrets/ | Pick And Place Hack Chat Reveals Assembly Secrets | Tom Nardi | [
"Hackaday Columns",
"Slider"
] | [
"design for assembly",
"design for manufacturing",
"Hack Chat",
"pick and place",
"solder mask"
] | These days we’ve got powerful free tools to do CAD and circuit design, cheap desktop 3D printers that can knock out bespoke enclosures, and convenient services that will spin up a stack of your PCBs and send them hurtling towards your front door for far less than anyone could have imagined. In short, if you want to bui... | 9 | 4 | [
{
"comment_id": "6424381",
"author": "Val",
"timestamp": "2022-02-11T19:06:15",
"content": "Two things noted that deserve expanding on: Humans are slow, yes, and the game is local and not overseas, yes as well. The reason is that human labour is much cheaper than pnp, performances and time are worse... | 1,760,372,792.033831 | ||
https://hackaday.com/2022/02/11/hackaday-podcast-155-dual-integrating-spheres-more-magnetic-switches-plottybot-red-hair-in-your-wafers/ | Hackaday Podcast 155: Dual Integrating Spheres, More Magnetic Switches, PlottyBot, Red Hair In Your Wafers | Tom Nardi | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | This week Hackaday Editor-in-Chief Elliot Williams and Managing Editor Tom Nardi take a close look at two pairs of projects that demonstrate the wildly different approaches that hackers can take while still arriving at the same conclusion. We’ll also examine the brilliant mechanism that the James Webb Space Telescope u... | 2 | 1 | [
{
"comment_id": "6424463",
"author": "Foley Matthews",
"timestamp": "2022-02-12T00:39:16",
"content": "in the podcast it was speculated that the audio from the Cry2001 scrambled radio messages might be listened to with a SDR, but a look at the circuit diagram shows digital processing inserted betwee... | 1,760,372,792.445131 | ||
https://hackaday.com/2022/02/11/a-most-unconventional-lego-walker/ | A Most Unconventional Lego Walker | Lewin Day | [
"Misc Hacks",
"Robots Hacks"
] | [
"flip walker",
"flipping walker",
"flipwalker",
"lego",
"robot",
"toy",
"walker",
"walking robot"
] | Lego Technic is a wonderful thing, making it easy to toy around with all manner of complicated mechanical assemblies without needing to do any difficult fabrication. [touthomme] recently posted one such creation to Reddit –
a walker design that is rather unconventional.
The design dispenses with individually-actuated l... | 15 | 8 | [
{
"comment_id": "6424352",
"author": "Clint Jay",
"timestamp": "2022-02-11T16:38:57",
"content": "I love it, reminds me of something, possibly some window descending toys I had as a kid.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6424354",
"autho... | 1,760,372,792.287158 | ||
https://hackaday.com/2022/02/10/theres-a-wrinkle-in-this-3d-printed-wankel/ | There’s A Wrinkle In This 3D Printed Wankel | Matthew Carlson | [
"Engine Hacks"
] | [
"3D resin printer",
"piston engine",
"rotary engine"
] | Rotary engines such as the Wankel have strange shapes that can be difficult to machine (as evidenced by the specialized production machines and patents in the 70s), which means it lends itself well to be 3D printed. The downside is that the tolerances, like most engines, are pretty tight, and it is difficult for a prin... | 10 | 4 | [
{
"comment_id": "6424095",
"author": "Chris",
"timestamp": "2022-02-10T22:04:17",
"content": "> as evidenced by the specialized production machines and patents in the 70sI want to read more about these machines!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": ... | 1,760,372,792.237283 | ||
https://hackaday.com/2022/02/10/remoticon-2021-sergiy-nesterenko-keeps-hardware-running-through-lightning-and-cosmic-rays/ | Remoticon 2021 // Sergiy Nesterenko Keeps Hardware Running Through Lightning And Cosmic Rays | Robin Kearey | [
"cons",
"Hackaday Columns",
"Space"
] | [
"2021 Hackaday Remoticon",
"ionizing radiation",
"radiation hardening",
"space"
] | Getting to space is hard enough. You have to go up a few hundred miles, then go sideways
really
fast to enter orbit. But getting something into space is one thing: keeping a delicate instrument working as it travels there is quite another. In his talk at Remoticon 2021, [Sergiy Nesterenko], former Radiation Effects Eng... | 1 | 1 | [
{
"comment_id": "6424368",
"author": "KBS",
"timestamp": "2022-02-11T17:54:33",
"content": "Really cool talk ! Thanks !",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,372,792.668956 | ||
https://hackaday.com/2022/02/10/cx-6000-pen-plotter-upgrade/ | CX-6000 Pen Plotter Upgrade | Chris Lott | [
"Peripherals Hacks",
"Retrocomputing"
] | [
"c.itoh",
"grblHAL",
"hpgl",
"pen plotter"
] | [Terje Io] decided to
breathe new life into an old pen plotter — the CX6000 from C. Itoh
, a Japanese company that made several printers for Apple in the 1980s. He keeps most of the framework, but the electronics get a major overhaul. The old motors are replaced, the controller and motor drivers are modernized using a ... | 9 | 4 | [
{
"comment_id": "6424080",
"author": "macsimski",
"timestamp": "2022-02-10T21:19:21",
"content": "My huge Calcomp 1039 is still waiting in the queue to be fixed. AFAIK there are some ram errors and the printer just hangs during startup. I was thinking along the same lines if i could not get it going... | 1,760,372,792.72061 | ||
https://hackaday.com/2022/02/10/keebin-with-kristina-the-one-with-the-ballpoint-typewriters/ | Keebin’ With Kristina: The One With The Ballpoint Typewriters | Kristina Panos | [
"Hackaday Columns",
"Peripherals Hacks"
] | [
"5-way switch",
"ballpoint typewriter",
"d-pad",
"Kailh chocs",
"KB2040",
"low-profile",
"Palm portable keyboard",
"plotter",
"Teensy"
] | So you want to minimize finger movement when you type, but don’t have three grand to drop on an old DataHand, or enough time to build the open-source lalboard?
Check out these two concept keebs from [SouthPawEngineer]
, which only look like chord boards.
Every key on the home row is a five-way switch — like a D-pad wit... | 7 | 5 | [
{
"comment_id": "6423649",
"author": "sampleusername",
"timestamp": "2022-02-10T16:02:58",
"content": "When will mechanical keyboard makers offer keycaps in smaller and larger sizes? Human hands come in many different sizes, but mechanical keycaps are all one size. You can only find miniature or ove... | 1,760,372,792.632577 | ||
https://hackaday.com/2022/02/10/ask-hackaday-whats-going-on-with-mazdas-in-seattle/ | Ask Hackaday: What’s Going On With Mazdas In Seattle? | Al Williams | [
"News",
"Radio Hacks"
] | [
"fm radio",
"mazda",
"mystery",
"rds"
] | What hacker doesn’t love a puzzle? We have a doozy for you. According to KUOW — the NPR affiliate in Seattle — they have been getting an unusual complaint. Apparently, if you drive a Mazda made in 2016 and you tune to KUOW, your radio gets stuck on their frequency, 94.9 MHz, and
you can’t change it
.
According to a pos... | 56 | 24 | [
{
"comment_id": "6423484",
"author": "leo60228",
"timestamp": "2022-02-10T12:03:10",
"content": "Ars Technica has an explanation direct from Mazda that raises some more questions:https://arstechnica.com/cars/2022/02/radio-station-snafu-in-seattle-bricks-some-mazda-infotainment-systems/> The problem,... | 1,760,372,793.032095 | ||
https://hackaday.com/2022/02/10/a-simple-3d-printed-rover-design/ | A Simple 3D Printed Rover Design | Lewin Day | [
"Robots Hacks"
] | [
"FPV",
"rover",
"tank thread",
"tracked vehicle"
] | There are plenty of RC cars and robot platforms out there that you can buy. However, there’s an understanding that’s gained from building your own rover from the ground up. Which is precisely what
[Alex] got from developing this compact 3D printed rover design.
The design is by no means fast; it’s intended more for cra... | 4 | 1 | [
{
"comment_id": "6423622",
"author": "Gravis",
"timestamp": "2022-02-10T15:25:10",
"content": "Wheels geared together are faaar more reliable. The advantage of tracks is being able to distribute the weight of the vehicle… which is something that isn’t done with only two large wheels per track.",
... | 1,760,372,792.936595 | ||
https://hackaday.com/2022/02/09/breakbeats-courtesy-of-the-rp2040/ | Breakbeats Courtesy Of The RP2040 | Lewin Day | [
"Misc Hacks"
] | [
"amen break",
"pi pico",
"raspberry pi",
"Raspberry Pi Pico"
] | While one often listens to songs or albums in full, sometimes you just want to lay down a simple beat. [todbot]’s latest project
promises to do just that.
The build relies on a Raspberry Pi Pico or any other RP2040-based microcontroller board, and is programmed in
CircuitPython.
The PWM feature is used for audio output... | 6 | 4 | [
{
"comment_id": "6423281",
"author": "Magic Smoke",
"timestamp": "2022-02-10T06:50:55",
"content": "Where was this in 1994?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6423384",
"author": "metalman",
"timestamp": "2022-02-10T09:13:32",
... | 1,760,372,793.183956 | ||
https://hackaday.com/2022/02/11/this-week-in-security-zimbra-lockbit-2-and-hacking-nk/ | This Week In Security: Zimbra, Lockbit 2, And Hacking NK | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Slider"
] | [
"column",
"fbi",
"horrible acronyms",
"Log4j",
"North Korea",
"PrintNightmare",
"security",
"SHA256"
] | Unknown attackers have been exploiting a 0-day attack against the Zimbra e-mail suite. Researchers at
Volexity first discovered the attack
back in December of last year, detected by their monitoring infrastructure. It’s a cross-site scripting (XSS) exploit, such that when opening a malicious link, the JavaScript runnin... | 9 | 4 | [
{
"comment_id": "6424348",
"author": "some guy",
"timestamp": "2022-02-11T16:33:05",
"content": "I won’t judge if hacking back if you are targeted by some spies is good or not, i just want to say that if i was that guy who nocked out part of the internet in NK i would be *really* afraid to get some ... | 1,760,372,792.892827 | ||
https://hackaday.com/2022/02/11/diy-nanoleaf-led-panels-offer-peace-of-mind/ | DIY Nanoleaf LED Panels Offer Peace Of Mind | Lewin Day | [
"LED Hacks"
] | [
"glowable",
"glowables",
"led",
"nanoleaf",
"ws2812b"
] | Nanoleaf light panels are a popular product for creating glowing geometric designs on walls. However, for those that like to avoid IoT devices that integrate with big cloud services, they’re not ideal, and involve compromising on one’s privacy, somewhat.
[Viktor] decided to build something of his own instead to avoid t... | 14 | 4 | [
{
"comment_id": "6424275",
"author": "robin geelen",
"timestamp": "2022-02-11T12:48:02",
"content": "i always wonder (though i can guess) why they don’t use some actually decent acrylic panels like “plexiglass led” from ROHR or similar.it cost a tad much but the effect would be so much more even and... | 1,760,372,793.301349 | ||
https://hackaday.com/2022/02/11/tilting-at-windmills-nine-bits-at-a-time/ | Tilting At Windmills Nine Bits At A Time | Al Williams | [
"FPGA"
] | [
"cpu",
"fpga"
] | In the old days — we are talking like the 1960s and 1970s — computers were often built for very specific purposes using either discrete logic or “bit slice” chips. Either way, more bits meant more money so frequently these computers were made with just enough bits to meet a required precision. We don’t think that was w... | 18 | 7 | [
{
"comment_id": "6424241",
"author": "Arlet",
"timestamp": "2022-02-11T09:37:45",
"content": "I once made a FPGA CPU using 18 bit opcodes, but still using a more traditional 32 bit data path. The 9th (or 18th) bit is a parity bit that comes free with the memory, allowing a nice addition to the opcod... | 1,760,372,793.245606 | ||
https://hackaday.com/2022/02/10/ir-translator-makes-truly-universal-remote/ | IR Translator Makes Truly Universal Remote | Bryan Cockfield | [
"Microcontrollers"
] | [
"arduino",
"control",
"infrared",
"ir",
"photodiode",
"raspberry pi",
"remote",
"translator"
] | Universal remotes are a handy tool to have around if you have many devices that would all otherwise have their own remote controls. Merging them all into a single device leads to less clutter and less frustration, but they are often not truly “universal” as some of them may not support every infrared device that has ev... | 19 | 13 | [
{
"comment_id": "6424233",
"author": "Alan",
"timestamp": "2022-02-11T09:11:44",
"content": "Great project! I worked on a similar setup with a ESP32 which recorded the IR codes to a firebase store. I built a web app that i could use to control the remote and fire the recorded IR codes. It worked w... | 1,760,372,793.383579 | ||
https://hackaday.com/2022/02/10/making-light-of-superconductors/ | Making Light Of Superconductors | Al Williams | [
"News",
"Science"
] | [
"superconductors"
] | Once upon a time, making a superconductor required extremely cold temperatures. Scientists understood why superconducting materials could move electrons without loss, but the super cold temperatures were a problem. Then in 1986, a high-temperature superconductor was found. High temperature, of course, is a relative ter... | 3 | 2 | [
{
"comment_id": "6424211",
"author": "Chris Maple",
"timestamp": "2022-02-11T07:46:51",
"content": "superconductors.org claims that we already have room temperature superconductors. The problem appears to be that only very tiny bits of superconductor can be made, not enough even to make a short wire... | 1,760,372,793.424905 | ||
https://hackaday.com/2022/02/10/turning-the-ps4-into-a-useful-linux-machine/ | Turning The PS4 Into A Useful Linux Machine | Bryan Cockfield | [
"Playstation Hacks"
] | [
"arch",
"compile",
"docker",
"gentoo",
"kernel",
"linux",
"options",
"playstation 4",
"ps4"
] | When the PlayStation 3 first launched, one of its most lauded features was its ability to officially run full Linux distributions. This was of course famously and permanently borked by Sony with a software update after a few years, presumably since the console was priced too low to make a profit and Sony didn’t want to... | 22 | 3 | [
{
"comment_id": "6424126",
"author": "Justin",
"timestamp": "2022-02-11T00:14:12",
"content": "Since the PS 4’s OS is based off of FreeBSD, wouldn’t it seem to be easier to get a general purpose version of FreeBSD running?",
"parent_id": null,
"depth": 1,
"replies": [
{
"co... | 1,760,372,793.793968 | ||
https://hackaday.com/2022/02/10/resin-printed-gears-versus-pla-which-is-tougher/ | Resin-Printed Gears Versus PLA: Which Is Tougher? | Lewin Day | [
"3d Printer hacks"
] | [
"3D printed gears",
"gear",
"gearbox",
"gears"
] | When it comes to making gearboxes, 3D printing has the benefit that it lets you whip up whatever strange gears you might need without a whole lot of hunting around at obscure gear suppliers. This is particularly good for those outside the limited radius served by McMaster Carr. When it came to 3D printed gears though, ... | 33 | 7 | [
{
"comment_id": "6424075",
"author": "Jason Belec",
"timestamp": "2022-02-10T21:10:01",
"content": "What kind of resin? We use some pretty solid/flexible stuff like Pro410 which we utilize a lot of and nothing has failed yet in the real world application for over a year. Several other resins are eve... | 1,760,372,793.498385 | ||
https://hackaday.com/2022/02/09/how-can-335-horses-weigh-63-pounds/ | How Can 335 Horses Weigh 63 Pounds? | Al Williams | [
"Engine Hacks",
"News"
] | [
"electric vehicle",
"ev",
"Koenigsegg"
] | Koenigsegg, the Swedish car company, has a history of unusual engineering. The latest innovation is an electric motor developed for its Gemera hybrid vehicle. The relatively tiny motor weighs 63 pounds and develops 335 horsepower and 443 lb-ft of torque. Dubbed the
Quark
, the motor uses both radial and axial flux desi... | 110 | 15 | [
{
"comment_id": "6423193",
"author": "BobH",
"timestamp": "2022-02-10T03:28:19",
"content": "I think you need to include the weight of the inverter/driver at least because it is such an integral part of a drive motor. Batteries you could argue parallel the weight of the fuel tank of an IC engine.",
... | 1,760,372,793.725873 | ||
https://hackaday.com/2022/02/09/3-wheeled-electric-skateboard-does-things-differently/ | 3-Wheeled Electric Skateboard Does Things Differently | Lewin Day | [
"Transportation Hacks"
] | [
"electric skateboard",
"Scooter motor",
"skateboard"
] | Typically, electric skateboards drive one or more wheels with brushless motors, while keeping everything mounted on otherwise fairly-standard trucks to maintain maneuverability. However, [swedishFeetballs] decided to go a different route, building a 3-wheeled design
using some interesting parts
.
The build relies on a ... | 6 | 3 | [
{
"comment_id": "6423251",
"author": "Fosterqc",
"timestamp": "2022-02-10T06:04:51",
"content": "These are referred to in the scene as 3sk8, like Esk8 but with the E flipped to a 3. One thing I admire about them in general is the speed wobble problem of skateboards comes from rear truck unintended m... | 1,760,372,793.545177 | ||
https://hackaday.com/2022/02/09/build-your-own-crt-tv/ | Build Your Own CRT TV | Jenny List | [
"classic hacks",
"home entertainment hacks"
] | [
"CRT TV",
"kit",
"tv"
] | There was a time following the Second World War when TV sets for the nascent broadcast medium were still very expensive, but there was an ample supply of war-surplus electronic parts including ex-radar CRTs. Thus it wasn’t uncommon at all for electronics enthusiasts of the day to build their own TV set, and magazines w... | 40 | 19 | [
{
"comment_id": "6423046",
"author": "Lee Hart",
"timestamp": "2022-02-09T21:39:43",
"content": "I built a few Heathkit TVs back in the day; and this is no Heathkit, that’s for sure. But it’s pretty cute, and it actually works. That’s saying a lot considering the price.Judging from the hum bar that ... | 1,760,372,793.8772 | ||
https://hackaday.com/2022/02/09/its-always-floppy-time/ | It’s Always Floppy Time! | Jenny List | [
"clock hacks",
"Retrocomputing"
] | [
"3.5\" floppy disk",
"clock",
"floppy clock",
"floppy disk"
] | On [Jan Derogee]’s desk is something that wouldn’t look out of place for many of us, a pile of computer magazines with a case of 3.5″ floppy disks on top of it. The causal observer would see nothing more than the detritus of a retrocomputer enthusiast’s existence, but stick around.
In fact it’s a clock
, and one of the... | 9 | 5 | [
{
"comment_id": "6423009",
"author": "Kristofer L. Gleason",
"timestamp": "2022-02-09T19:37:45",
"content": "Compute’s Gazette would probably have a box of 5-inch floppies on top.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6423306",
"author": "Ja... | 1,760,372,793.927376 | ||
https://hackaday.com/2022/02/09/mining-and-refining-lithium-powering-the-future-with-brine/ | Mining And Refining: Lithium, Powering The Future With Brine | Dan Maloney | [
"chemistry hacks",
"green hacks",
"Hackaday Columns"
] | [
"battery",
"extraction",
"lithium",
"mining",
"renewable energy"
] | Many years ago, I read an article about the new hotness: lithium batteries. The author opened with what he no doubt thought was a clever pop culture reference by saying that the mere mention of lithium would “strike fear in the hearts of Klingons.” It was a weak reference to the fictional “dilithium crystals” of
Star T... | 28 | 7 | [
{
"comment_id": "6423012",
"author": "Anders",
"timestamp": "2022-02-09T19:47:19",
"content": "Or we could hurry up and build the nuclear plants we should’ve built in the 70’s, so we don’t need batteries for things that shouldn’t need batteries… like energy production.I really don’t get why anyone w... | 1,760,372,794.063182 | ||
https://hackaday.com/2022/02/09/that-clock-on-the-wall-is-actually-a-network-ping-display/ | That Clock On The Wall Is Actually A Network Ping Display | Dan Maloney | [
"clock hacks",
"Network Hacks"
] | [
"clock",
"e-paper",
"ESP32",
"icmp",
"internet message control protocol",
"ping",
"stepper"
] | We’ve all been online from home a bit more than usual lately, in ways that often stretch the limits of what our ISP can muster. You know the signs — audio that drops out, video sessions that make you look like [Max Headroom], and during the off-hours, getting owned in
CS:GO
by pretty much everyone. All the bandwidth in... | 15 | 5 | [
{
"comment_id": "6422970",
"author": "v",
"timestamp": "2022-02-09T17:12:53",
"content": "Would be nice to see to break the speed of light because of bug :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6422982",
"author": "paul",
"timestamp": "2022-0... | 1,760,372,793.984541 | ||
https://hackaday.com/2022/02/09/china-loves-battery-swapping-evs-but-will-they-ever-make-it-here/ | China Loves Battery Swapping EVs, But Will They Ever Make It Here? | Lewin Day | [
"car hacks",
"Current Events",
"Featured",
"Original Art",
"Slider"
] | [
"battery swapping",
"car",
"car hacks",
"china",
"electric vehicle",
"ev",
"geely",
"nio"
] | Electric vehicles promise efficiency gains over their gas-fuelled predecessors, but the issue of recharging remains a hurdle for many eager to jump on board with the technology. The problem is only magnified for those that regularly street park their vehicles or live in apartments, without provision to charge a vehicle... | 122 | 22 | [
{
"comment_id": "6422937",
"author": "Twisty Plastic",
"timestamp": "2022-02-09T15:11:26",
"content": "I haven’t owned one yet but to me what sounds most appealing about an electric car is plugging it in to charge at home in the evening when I’m not driving so that I don’t have to stop at any sort o... | 1,760,372,794.731542 | ||
https://hackaday.com/2022/02/08/industrial-sewing-machine-acquired/ | Industrial Sewing Machine: Acquired | Kristina Panos | [
"Hackaday Columns",
"Slider",
"Tool Hacks"
] | [
"clutch motor",
"industrial sewing machine",
"servo motor",
"sewing machine",
"walking foot"
] | Well, it’s done. After weeks of trawling Craigslist, an hour-long phone call with an intelligent stranger about a different machine that wasn’t going suit my needs, and a two-week delay while the seller and I waited out their unintentional COVID exposure, I am the proud new owner of a vintage Consew 206RB-3 industrial ... | 106 | 37 | [
{
"comment_id": "6422603",
"author": "jcwren",
"timestamp": "2022-02-08T18:08:41",
"content": "Best thing you can do is to upgrade to the servo motor as soon as you can. Those clutches are hell.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6423021",
... | 1,760,372,794.394643 | ||
https://hackaday.com/2022/02/08/ibm-eagle-has-a-lot-of-qubits/ | IBM Eagle Has A Lot Of Qubits | Al Williams | [
"computer hacks"
] | [
"ibm",
"quantum computing"
] | How many qubits do you need in a quantum computer? Plenty, if you want to anything useful. However, today, we have to settle for a lot fewer than we would like. But
IBM’s new Eagle
has the most of its type of quantum computer: 127-qubits. Naturally, they plan to do even more work, and you can see a preview of “System T... | 7 | 4 | [
{
"comment_id": "6422610",
"author": "jrfl",
"timestamp": "2022-02-08T18:42:36",
"content": "At first I thought they actually got the chip working, but it turns out this is the press release from last year where they announced they are going to start working on the 127 qubit chip…",
"parent_id":... | 1,760,372,794.110339 | ||
https://hackaday.com/2022/02/08/hair-today-gone-tomorrow-four-men-go-to-fix-a-wafer-prober/ | Hair Today Gone Tomorrow: Four Men Go To Fix A Wafer Prober | Dave Rowntree | [
"Featured",
"History",
"Interest",
"Original Art",
"Slider"
] | [
"ATE",
"beard",
"DFT",
"integrated circuits",
"Scan Test",
"Teradyne",
"Wafer prober"
] | I’ve had a fairly varied early part of my career in the semiconductors business: a series of events caused me to jump disciplines a little bit, and after one such event, I landed in the test engineering department at Philips Semiconductors. I was tasked with a variety of oddball projects, supporting engineering work, f... | 43 | 25 | [
{
"comment_id": "6422523",
"author": "Thorsten (@tvoneicken)",
"timestamp": "2022-02-08T15:29:52",
"content": "Nice story! Thanks for writing it up! I’d love to read some more about your chip fab time ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6422535"... | 1,760,372,794.489173 | ||
https://hackaday.com/2022/02/08/invisible-3d-printed-codes-make-objects-interactive/ | Invisible 3D Printed Codes Make Objects Interactive | Donald Papp | [
"3d Printer hacks",
"Video Hacks"
] | [
"ArUco",
"infrared",
"infraredtags",
"ir",
"label",
"machine readable",
"machine vision",
"qr code"
] | An interesting research project out of MIT shows that
it’s possible to embed machine-readable labels into 3D printed objects
using nothing more than an FDM printer and filament that is transparent to IR. The method is being called
InfraredTags;
by embedding something like a
QR code
or
ArUco markers
into an object’s str... | 18 | 8 | [
{
"comment_id": "6422468",
"author": "Craig",
"timestamp": "2022-02-08T12:32:13",
"content": "Embedding version numbers etc. into the infill/void would be really handy, especially if a slicer plug in could take it from the file name.",
"parent_id": null,
"depth": 1,
"replies": []
},
... | 1,760,372,794.547316 | ||
https://hackaday.com/2022/02/08/a-bugatti-without-the-inconvenience-of-wealth/ | A Bugatti Without The Inconvenience Of Wealth | Jenny List | [
"Transportation Hacks"
] | [
"bugatti",
"car",
"fibreglass",
"homemade car",
"kitcar",
"supercar"
] | There are many of us who might have toyed with the idea of building a car, indeed perhaps more than a few readers might even have taken to the road in a machine of their own creation. Perhaps it was a design of your own, or maybe a kit car. We think that very few of you will have gone as far as [Vũ Văn Nam] and his fri... | 52 | 14 | [
{
"comment_id": "6422424",
"author": "Jens",
"timestamp": "2022-02-08T09:08:58",
"content": "I was watching some of their other episodes and I wish I understood more of what they’re saying, the automatic subtitles are unusable.I can’t wait to see what they’ll do in the future with more experience.",... | 1,760,372,794.826081 | ||
https://hackaday.com/2022/02/07/swapped-dash-module-gives-ford-maverick-an-upgrade/ | Swapped Dash Module Gives Ford Maverick An Upgrade | Tom Nardi | [
"car hacks"
] | [
"dashboard",
"digital display",
"ford",
"Maverick"
] | Ford is looking to make their new Maverick compact truck stand out, and so far, it seems to be working. Not only is it exceptionally cheap for a brand-new hybrid, truck or otherwise, but Ford actively encourages owners to modify their new ride. From standardized mounting points throughout the cabin intended for 3D prin... | 17 | 8 | [
{
"comment_id": "6422420",
"author": "JohnU",
"timestamp": "2022-02-08T09:00:51",
"content": "The real story here is that you might be able to remove a screen from your car and replace it with proper gauges.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "642... | 1,760,372,794.885939 | ||
https://hackaday.com/2022/02/07/move-aside-solar-were-installing-an-algae-panel/ | Move Aside Solar, We’re Installing An Algae Panel | Matthew Carlson | [
"green hacks",
"Solar Hacks"
] | [
"algae",
"algae panel",
"biomass",
"solar"
] | [Cody] of
Cody’sLab
has been bit by what he describes as the algae growing bug. We at Hackaday didn’t know that was a disease floating around, but we’ll admit that we’re not surprised after the last few years. So not content to stick to the small-time algae farms, [Cody]
decided to scale up and build a whole algae pane... | 58 | 12 | [
{
"comment_id": "6422372",
"author": "David G Watson",
"timestamp": "2022-02-08T03:09:41",
"content": "I thought you could also use algae to make diesel. Yeah, long process to make it, but still, you have to start some where. Also I did not realize Algae did not like the cold. I had a recirculating ... | 1,760,372,794.981024 | ||
https://hackaday.com/2022/02/07/plottybot-a-drawbot-that-plots-a-lot/ | PlottyBot: A DrawBot That Plots A Lot | Michael Shaub | [
"Art",
"hardware",
"Raspberry Pi"
] | [
"art",
"cnc plotter",
"draw bot",
"drawbot",
"fountain pen",
"handwriting",
"handwritting to font",
"pen plotter",
"plotterbot",
"raspberry pi",
"Raspberry Pi Zero 2 W"
] | Fire up those 3D printers because if you’re like us, you’ll want your own
PlottyBot
. Still, have a pile of “thank you notes” to write from recent winter holiday gift exchanges? Hoping to hand letter invitations to a wedding or other significant event? Need some new art to adorn your lock-down shelter or shop? It sound... | 15 | 11 | [
{
"comment_id": "6422365",
"author": "Ken de AC3DH",
"timestamp": "2022-02-08T02:04:20",
"content": "i could have used this in Catholic school, my hand writing is terrible!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6422367",
"author": "mike",
... | 1,760,372,795.042558 | ||
https://hackaday.com/2022/02/07/fluke-dmm-hack-adds-one-digit-to-model-number/ | Fluke DMM Hack Adds One Digit To Model Number | Chris Lott | [
"Tech Hacks"
] | [
"average responding meter",
"calibration",
"dmm",
"fluke",
"test equipment",
"true rms"
] | Among his many interests, [Dave Jones] likes test and measurement equipment. He recently posted a few videos on his EEVblog exploring the reasons why Fluke voltmeters are so expensive. In the process,
he stumbled upon an interesting hack for the Fluke 77
.
The Fluke 77 was introduced in 1983, and is an average respondi... | 28 | 12 | [
{
"comment_id": "6422298",
"author": "Eric Weatherby",
"timestamp": "2022-02-07T21:13:44",
"content": "I hold Fluke in high regard and thought that they were above selling crippleware. Truly, there are no heroes.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id":... | 1,760,372,795.164431 | ||
https://hackaday.com/2022/02/07/arduino-nano-adds-usb-interface-to-the-psion-organiser-ii/ | Arduino Nano Adds USB Interface To The Psion Organiser II | Robin Kearey | [
"Arduino Hacks",
"classic hacks",
"handhelds hacks"
] | [
"arduino nano",
"diy usb interface",
"Psion Organiser"
] | Introduced in 1984, the Psion Organiser series defined the first generation of electronic organizers or PDAs (personal digital assistants). Even though these devices are now over 30 years old, the Psion Organiser scene is alive and well: with new hardware and software is still being developed by enthusiasts the world o... | 4 | 3 | [
{
"comment_id": "6422352",
"author": "Hirudinea",
"timestamp": "2022-02-08T00:20:56",
"content": "Is it just me or does adding massively more powerful hardware to much older hardware remind anyone of V’Ger from Star Trek 1?",
"parent_id": null,
"depth": 1,
"replies": [
{
"c... | 1,760,372,795.089191 | ||
https://hackaday.com/2022/02/07/crimping-tools-and-the-cost-of-being-cheap/ | Crimping Tools And The Cost Of Being Cheap | Maya Posch | [
"Hackaday Columns",
"Slider",
"Tool Hacks"
] | [
"crimping tools",
"dupont",
"JST",
"Mini-PV"
] | Crimp connectors provide an easy and convenient way to connect electronics while still allowing for them to be removed and swapped without having to reach for a soldering iron and desoldering wick. While browsing one’s favorite cheap shopping site, you may get the impression that all one has to do to join the world of ... | 113 | 28 | [
{
"comment_id": "6422224",
"author": "Jimf",
"timestamp": "2022-02-07T18:28:12",
"content": "Some crimps failed using a PA engineering tool when I did a bunch of connectors for a cnc controller. Kinda embarrassed since it was for my brother who has the real DuPont crimp tools. Retired GM engineer ... | 1,760,372,795.475469 | ||
https://hackaday.com/2022/02/07/pick-and-place-hack-chat/ | Pick And Place Hack Chat | Dan Maloney | [
"Hackaday Columns",
"Slider"
] | [
"assembly",
"Hack Chat",
"pcb",
"pick and place",
"pnp",
"robot",
"smd"
] | Join us on Wednesday, February 9 at noon Pacific for the
Pick and Place Hack Chat
with
Chris Denney
!
We in the hacker trade are pretty used to miracles — we make them all the time. But even the most jaded among us has to admit that modern PCB assembly, where components that could easily hide under a grain of sand are ... | 0 | 0 | [] | 1,760,372,795.518019 | ||
https://hackaday.com/2022/02/07/is-your-flashlight-a-lumen-liar-build-a-diy-integrating-sphere/ | Is Your Flashlight A Lumen Liar? Build A DIY Integrating Sphere | Dave Rowntree | [
"Tool Hacks"
] | [
"integrating sphere",
"lumens",
"metrology",
"optical"
] | A lamp used to be simple thing: just stick a filament in a glass bulb, pass a current through it and behold! Let there be light. A bigger lamp meant a larger filament, taking more power and a larger envelope. Now we’ve moved on a bit, and it’s all about LEDs. There really isn’t such a thing as ‘just an LED,’ these are ... | 3 | 2 | [
{
"comment_id": "6422328",
"author": "sdfdsfdfs",
"timestamp": "2022-02-07T22:32:53",
"content": "The surfaces in the lab’s integrating sphere and their light measurement probes might have different spectral characteristics…comparing your results to a lab’s isn’t necessarily valid.",
"parent_id"... | 1,760,372,795.646039 | ||
https://hackaday.com/2022/02/07/remembering-the-mit-radiation-laboratory/ | Remembering The MIT Radiation Laboratory | Chris Lott | [
"Engineering",
"Featured",
"History",
"Interest",
"Slider"
] | [
"MIT Radiation Laboratory",
"Rad Lab",
"radar",
"WW2"
] | Back in the late 80s, our company managed to procure the complete 28 volume MIT Radiation Laboratory (Rad Lab) series, published in 1947, for the company library. To me, these books were interesting because I like history and old technology, but I didn’t understand why everyone was so excited about the acquisition. Onl... | 32 | 18 | [
{
"comment_id": "6422176",
"author": "Ostracus",
"timestamp": "2022-02-07T15:17:12",
"content": "” Anyone proposing a new idea would always be challenged by associate director I. I. Rabi with the following question: “How many Germans will it kill?”. [Ed Note: Different times!]”Not really. Notice how... | 1,760,372,795.599427 | ||
https://hackaday.com/2022/02/05/gaming-twitters-trending-algorithm-to-make-a-point/ | Gaming Twitter’s Trending Algorithm To Make A Point | Jenny List | [
"internet hacks"
] | [
"hashtag",
"Social Media",
"twitter"
] | If you have ever taken to Twitter to gauge the zeitgeist, you’ll have noticed that among the trending hashtags related to major events of the day there are sometimes outliers of minority interest associated with single-issue causes. When a cause with a distasteful pedigree was cited one as proof of widespread public su... | 13 | 5 | [
{
"comment_id": "6421474",
"author": "Arsenijs Picugins",
"timestamp": "2022-02-05T18:29:37",
"content": "Twitter is absolutely a game-able platform, but I didn’t suspect it’s that bad until I saw how quickly this hashtag could rise to prominence. If gaming the sidebar is that easy (and might remain... | 1,760,372,795.911917 | ||
https://hackaday.com/2022/02/05/the-weirdest-hack/ | The Weirdest Hack | Elliot Williams | [
"Hackaday Columns",
"News",
"Rants",
"Slider"
] | [
"hackaday",
"Hackaday Podcast",
"keeping it weird",
"newsletter"
] | I was on the FLOSS podcast (for the
Episode of the Beast
no less!) and we were talking all about Hackaday. One of the hosts, secretly Hackaday’s own Jonathan Bennett in disguise, asked me what the weirdest hack I’d ever seen on Hackaday was. Weird?!?!
I was caught like a deer in headlights. None of our hacks are weird!... | 31 | 15 | [
{
"comment_id": "6421443",
"author": "Enkerli",
"timestamp": "2022-02-05T16:02:48",
"content": "“None of our hacks are weird! Or maybe all of them are?”Both are true, depending on perspective.Weird is defined by difference.",
"parent_id": null,
"depth": 1,
"replies": [
{
"c... | 1,760,372,795.785469 | ||
https://hackaday.com/2022/02/05/1960s-stereo-console-gets-an-upgrade/ | 1960s Stereo Console Gets An Upgrade | Chris Lott | [
"home entertainment hacks"
] | [
"analog tuner",
"arduino",
"console stereo",
"home entertainment",
"linear actuator",
"stepper motor",
"tuning dial"
] | Faced with an old console stereo from the 1960s that was barely functional, [Sherman Banks] aka W4ATL decided to
upgrade its guts while keeping its appearance as close to the original as possible
. This stereo set is a piece of mahogany furniture containing an AM/FM stereo receiver and an automatic turntable from JCPen... | 20 | 9 | [
{
"comment_id": "6421444",
"author": "Adam",
"timestamp": "2022-02-05T16:08:50",
"content": "What about speakers? I am guessing that the original speakers were probably higher quality than new speakers.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6421502"... | 1,760,372,795.854237 | ||
https://hackaday.com/2022/02/05/how-to-spot-a-fake-op-amp/ | How To Spot A Fake Op-Amp | Jenny List | [
"Parts"
] | [
"fake parts",
"OP-07",
"op-amp"
] | We’re all aware that there are plenty of fake components to be found if you’re prepared to look in the right places, and that perhaps too-good-to-be-true chip offers on auction sites might turn out to have markings which rub off to reveal something completely different underneath. [IMSAI Guy] saw a batch of OP-07 laser... | 21 | 10 | [
{
"comment_id": "6421396",
"author": "Blerik",
"timestamp": "2022-02-05T09:18:19",
"content": "Can’t you just put 2 cheap opamps in series, with the second one with a trimpot to adjust the first ones bias to zero?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id"... | 1,760,372,795.709496 | ||
https://hackaday.com/2022/02/04/cadquery-comes-of-age/ | CadQuery Comes Of Age | Dave Rowntree | [
"Tool Hacks"
] | [
"3d modeling",
"3d printing",
"cad",
"CadQuery",
"CQ-editor",
"OpenCascade",
"python"
] | Now, we know what some of you are going to say — “Oh man, not
another
programmatic CAD tool, what’s wrong with OpenSCAD?” — and you may be right, but maybe hold on a bit and take a look at this one, because we think that it’s now pretty awesome! OpenSCAD is great, we use it all the time round these parts, but it is a b... | 66 | 19 | [
{
"comment_id": "6421377",
"author": "BrightBlueJim",
"timestamp": "2022-02-05T07:21:09",
"content": "A gigabyte installer? I think I’ll damned well be sticking with OpenSCAD, thank-you-very-much.At least, maybe. At one point I was considering writing a C program to generate an OpenSCAD model, bec... | 1,760,372,796.031813 | ||
https://hackaday.com/2022/02/04/multiple-ways-of-recovering-a-failed-print/ | Multiple Ways Of Recovering A Failed Print | Matthew Carlson | [
"3d Printer hacks"
] | [
"3d printer",
"g-code",
"gcode",
"prusa",
"restart"
] | It’s a special gut-dropping, grumbly moment that most who use 3d printers know all too well. When you check on your 13-hour print, only to see that it failed printing several hundred layers ago. [Stephan] from [CNC Kitchen] has a
few clever tricks to resume failed prints
.
It starts when you discover your print has fai... | 5 | 4 | [
{
"comment_id": "6421359",
"author": "John",
"timestamp": "2022-02-05T04:55:24",
"content": "These are always easier said than done. I’ve never gotten a print to successfully resume after a problem. Maybe I didn’t try hard enough, maybe it’s not as simple as it sounds.",
"parent_id": null,
"... | 1,760,372,796.075866 | ||
https://hackaday.com/2022/02/04/3d-printed-radiation-shields-get-put-to-the-test/ | 3D Printed Radiation Shields Get Put To The Test | Tom Nardi | [
"Engineering",
"Science"
] | [
"3D printed parts",
"radiation shield",
"sensor",
"weather station"
] | Don’t get too excited, a 3D printed radiation shield won’t keep you from getting irradiated during WWIII. But until the Doomsday Clock starts clanging its midnight bell, you can use one to improve the accuracy of your homebrew weather monitoring station by keeping the sun from heating up your temperature sensor. But ho... | 19 | 12 | [
{
"comment_id": "6421342",
"author": "Freman",
"timestamp": "2022-02-05T02:06:52",
"content": "Can confirm, I designed and printed one of these that snaps together a year ago, it’s a year old in the Queensland weather and still going strong. In fact it’s doing better than the “stainless” steel screw... | 1,760,372,796.139147 |
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