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https://hackaday.com/2021/12/15/heavy-duty-starter-motor-powers-an-awesome-drift-trike/ | Heavy-Duty Starter Motor Powers An Awesome Drift Trike | Lewin Day | [
"Misc Hacks"
] | [
"brushed motor",
"drift trike",
"Electric motor",
"starter motor"
] | Starter motors aren’t typically a great choice for motorized projects, as they’re designed to give engines a big strong kick for a few seconds. Driving them continuously can often quickly overheat them and burn them out. However, [Austin Blake] demonstrates that by choosing parts carefully,
you can indeed have some fun... | 11 | 4 | [
{
"comment_id": "6407242",
"author": "Johnny",
"timestamp": "2021-12-15T22:29:43",
"content": "I think you are confusing solenoid with the Bendix in the article text.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6407250",
"author": "smellsofbikes",... | 1,760,372,852.478306 | ||
https://hackaday.com/2021/12/15/diy-glasses-aim-to-improve-color-vision/ | DIY Glasses Aim To Improve Color Vision | Lewin Day | [
"Medical Hacks"
] | [
"color perception",
"eyes"
] | Typically, to improve one’s eyesight, we look to tools like corrective lenses or laser eye surgery to improve optical performance. However, [Casey Connor 2] came across another method, that uses light exposure to improve color vision,
and set about trying to achieve the same results at home.
A recent study published in... | 27 | 12 | [
{
"comment_id": "6407212",
"author": "sjm4306",
"timestamp": "2021-12-15T20:00:49",
"content": "Caption: “I’m antsinmyeyes johnson …”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6407217",
"author": "scott.tx",
"timestamp": "2021-12-15T20:23:05",
... | 1,760,372,852.250889 | ||
https://hackaday.com/2021/12/15/the-real-science-not-armchair-science-of-consciousness/ | The Real Science (Not Armchair Science) Of Consciousness | Steven Dufresne | [
"Featured",
"Interest",
"Original Art",
"Science",
"Slider"
] | [
"brain",
"brain waves",
"Consciousness",
"eeg",
"electroencephalogram",
"fMRI",
"mri"
] | Among brain researchers there’s a truism that says the reason people underestimate how much unconscious processing goes on in your brain is because you’re not conscious of it. And while there is a lot of unconscious processing, the truism also points out a duality: your brain does both processing that leads to consciou... | 43 | 15 | [
{
"comment_id": "6407183",
"author": "vib",
"timestamp": "2021-12-15T18:36:37",
"content": "Nice topic. And yes definitely there is serious research happening in this field.From the multiple theories of consciousness, my preferred one is the Orch OR theory:https://en.wikipedia.org/wiki/Orchestrated_... | 1,760,372,852.629996 | ||
https://hackaday.com/2021/12/15/a-nixie-clock-the-hard-way/ | A Nixie Clock, The Hard Way | Dan Maloney | [
"clock hacks",
"Parts"
] | [
"clock",
"counter",
"electronic counter",
"hewlett packard",
"HP",
"nixie",
"retro",
"signal generator",
"vintage"
] | Notice: no vintage Hewlett Packard test equipment was harmed in the making of
this overly complicated Nixie clock
. In fact, if anything, the HP 5245L electronic counter came out better off than it went into the project.
Beautiful hand-wired backplane in the HP 5245 counter.
We mention the fate of this instrument mainl... | 16 | 12 | [
{
"comment_id": "6407139",
"author": "Canuckfire",
"timestamp": "2021-12-15T16:50:48",
"content": "I love the look and design of the old HP test equipment.I have an HP 5326 DVM/Counter that I toyed with to make a clock like this (desperately need to change the fan to fix the bearing whine).I complet... | 1,760,372,852.434446 | ||
https://hackaday.com/2021/12/17/gluggle-jug-is-neat-application-of-hydrodynamics/ | Gluggle Jug Is Neat Application Of Hydrodynamics | Lewin Day | [
"Misc Hacks"
] | [
"glug",
"gluggle jug",
"hydrodynamics",
"water"
] | The Gluggle Jug is an aptly-named thing – it’s a jug that makes loud, satisfying glugging noises when poured. But how does it work?
[Steve Mould] set out to investigate.
[Steve]’s first plan was to cut apart an existing Gluggle Jug to see how it worked, but cutting ceramics can be difficult and time-consuming, and the ... | 8 | 8 | [
{
"comment_id": "6407722",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2021-12-17T16:18:09",
"content": "Neat video!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6407742",
"author": "Kees",
"timestamp": "2021-12-17T17:36:04",
"... | 1,760,372,852.28923 | ||
https://hackaday.com/2021/12/17/this-week-in-security-log4j-pdf-cpu-and-i-hack-starlink/ | This Week In Security: Log4j, PDF CPU, And I Hacked Starlink | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"Log4j",
"NSO Group",
"Starlink",
"This Week in Security"
] | The big news this week is Log4j, breaking just a few hours too late to be included in last week’s column. Folks are already asking if this is the most severe vulnerability ever, and it does look like it’s at least in the running. The bug was first discovered by security professionals at Alibaba, who notified Apache of ... | 35 | 15 | [
{
"comment_id": "6407708",
"author": "some guy",
"timestamp": "2021-12-17T15:42:19",
"content": "4800$ is a nice christmas present… Do you have to pay taxes for this so the final gained money will be less?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "64077... | 1,760,372,852.187808 | ||
https://hackaday.com/2021/12/17/simple-mods-turn-3d-printer-into-electrochemical-metal-cutter/ | Simple Mods Turn 3D Printer Into Electrochemical Metal Cutter | Dan Maloney | [
"3d Printer hacks",
"Tool Hacks"
] | [
"cnc",
"ecm",
"EDM",
"electric discharge machining",
"electrochemical machining",
"electrolyte",
"etching",
"g-code",
"machining",
"subtractive",
"wire ECM"
] | We’re not aware of any authoritative metrics on such things, but it’s safe to say that the Ender 3 is among the most hackable commercial 3D printers. There’s just something about the machine that lends itself to hacks, most of which are obviously aimed at making it better at 3D printing. Some, though, are aimed in a to... | 30 | 12 | [
{
"comment_id": "6407665",
"author": "Krzysztof",
"timestamp": "2021-12-17T12:19:42",
"content": "For EDM version:https://hackaday.io/project/181551-silent-cnc-machine-edm-drill(it’s work in progress).",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6407974",... | 1,760,372,852.544543 | ||
https://hackaday.com/2021/12/17/diy-mechanical-flux-dispenser-syringe-has-fine-control/ | DIY Mechanical Flux Dispenser Syringe Has Fine Control | Donald Papp | [
"Tool Hacks"
] | [
"3d printed",
"dispenser",
"flux",
"mechanical",
"soldering",
"syringe"
] | [Perinski]’s design for
a mechanical flux dispenser
uses some common hardware and a few 3D printed parts to create a syringe with fine control over just how much of the thick stuff gets deposited. The design is slick, and there’s a full parts list to accompany the printed pieces. [Perinski] even has some useful tips on... | 16 | 8 | [
{
"comment_id": "6407644",
"author": "Andy Pugh",
"timestamp": "2021-12-17T10:36:21",
"content": "I found an all-printed version of a similar design on Thingiverse some years ago.Probably this one:https://www.thingiverse.com/thing:2755949But there are a few remixes of it now, and some other designs.... | 1,760,372,852.728479 | ||
https://hackaday.com/2021/12/16/add-smarts-to-your-old-capsule-coffee-maker/ | Add Smarts To Your Old Capsule Coffee Maker | Chris Wilkinson | [
"classic hacks",
"home hacks"
] | [
"coffee",
"coffee machine",
"home automation",
"IoT"
] | Everyone has their preferred method of making (and consuming) coffee. While modern coffee makers are starting to come standard with IoT and ‘smart’ capabilities, owners of older models should fear not, as [Andreas Skoglund] shows how just about any old machine can be
upgraded with the latest automation wizardry
.
The m... | 12 | 7 | [
{
"comment_id": "6407595",
"author": "Winstone Carlin",
"timestamp": "2021-12-17T06:40:50",
"content": "It’s good to see that Stevie Wonder is still in the connector crimping business",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6407655",
"author":... | 1,760,372,852.674725 | ||
https://hackaday.com/2021/12/16/gone-google-toolbar-2000-2021/ | Gone: Google Toolbar (2000-2021) | Roger Cheng | [
"internet hacks"
] | [
"google",
"Google Chrome",
"internet explorer",
"time capsule",
"toolbar"
] | For both better and worse, the internet landscape moves fast. Shortening attention spans and memories all over the world. But every once in a while, we get a reminder of what once was. [Ron Amadeo] of
Ars Technica
fired up a Google product of year 2000 in
Take one last look at Google Toolbar, which is now dead
.
Today ... | 10 | 6 | [
{
"comment_id": "6407613",
"author": "rtlyinwl",
"timestamp": "2021-12-17T08:50:12",
"content": "Chromium is a google-free browser using the same engine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6407615",
"author": "Dan",
"timestamp": "2021-12-17... | 1,760,372,852.102634 | ||
https://hackaday.com/2021/12/16/weather-station-dumps-cr2032-cells-gains-18650/ | Weather Station Dumps CR2032 Cells, Gains 18650 | Tom Nardi | [
"green hacks",
"home hacks"
] | [
"18650",
"cr2032",
"rechargable",
"TP4056",
"weather station"
] | Despite the fact that we’re rapidly approaching the year 2022, there are still an incredible number of gadgets out there that you’re expected to power with disposable batteries. Sure you can buy rechargeable stand-ins that come in the various shapes and sizes of the traditional alkaline cells, but that’s a stopgap at b... | 34 | 10 | [
{
"comment_id": "6407527",
"author": "Alex99a",
"timestamp": "2021-12-17T00:44:47",
"content": "I don’t understand the “his solution should keep the unit up and running for nearly 40 days” thing. Two CR2032 cells hold about 470mAh while a 18650 is north of 2300mAh. Was he replacing the CR2032 cells ... | 1,760,372,852.814212 | ||
https://hackaday.com/2021/12/15/the-seductive-pull-of-an-obsolete-home-movie-format/ | The Seductive Pull Of An Obsolete Home Movie Format | Jenny List | [
"Hackaday Columns",
"home entertainment hacks",
"Raspberry Pi",
"Slider",
"Video Hacks"
] | [
"8mm",
"camera",
"movie camera"
] | It’s dangerous for a hardware hacker to go into a second-hand store. I was looking for a bed frame for my new apartment, but of course I spent an age browsing all the other
rubbish
treasures on offer. I have a rough rule of thumb: if it’s not under a tenner and fits in one hand, then it has to be exceptional for me to ... | 53 | 19 | [
{
"comment_id": "6407116",
"author": "Greg A",
"timestamp": "2021-12-15T15:25:46",
"content": "heh folding palm pilot keyboard with a serial interface. i believe i have the same unit! when my palm Vx died, i was able to hack it to work with my ipaq h3765 just as well. i still have the keyboard, a... | 1,760,372,852.959154 | ||
https://hackaday.com/2021/12/15/you-can-always-use-an-attiny-instead-of-a-555/ | You Can Always Use An ATtiny Instead Of A 555 | Jenny List | [
"ATtiny Hacks"
] | [
"555",
"555 timer",
"ATTiny 85"
] | It’s a constant of writing for Hackaday, that whenever a project appears using a 555 timer, someone will say “You could have used a microcontroller to do that!”. It’s something that [Shranav Palakurthi] has approached with the ATTiny555,
a project that emulates an entire 555
by making clever use of the humble and ubiqu... | 62 | 19 | [
{
"comment_id": "6407072",
"author": "dave",
"timestamp": "2021-12-15T12:31:56",
"content": "Could have done that with an RPI.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6407111",
"author": "fuzzyfuzzyfungus",
"timestamp": "2021-12-15T15:... | 1,760,372,853.832238 | ||
https://hackaday.com/2021/12/15/googles-t-rex-game-ported-to-the-esp32/ | Google’s T-Rex Game Ported To The ESP32 | Lewin Day | [
"Microcontrollers"
] | [
"browser game",
"chrome",
"ESP32",
"game",
"gaming",
"Google Chrome",
"T-rex"
] | Most Chrome users will have come across a neat little Easter egg when their Internet connection has gone down – a game known as “T-Rex” where a dinosaur must be jumped over cactii. Whether or not this is accurate in terms of the evolutionary timeline, it’s a bit of fun, and
Volos Projects
educator [Danko Bertović]
deci... | 3 | 3 | [
{
"comment_id": "6407137",
"author": "David Thijs",
"timestamp": "2021-12-15T16:32:03",
"content": "Awesome, going to check out the code. I’ve made once a game in vb.net as part of a school project and since I wasn’t familiar with directx/directdraw, I had to revert to sprites to draw buildings, ta... | 1,760,372,853.240215 | ||
https://hackaday.com/2021/12/14/a-slim-7400-logic-vga-board-for-all-your-retro-needs/ | A Slim 7400 Logic VGA Board For All Your Retro Needs | Tom Nardi | [
"Parts",
"Retrocomputing"
] | [
"7400-series",
"74xx",
"Vectron",
"vga"
] | Over the years we’ve seen a number of hackers generate VGA with 74xx logic chips, but they’ve generally not been the most practical of builds. Often put together as part of a competition or purely for the challenge, these circuits are usually implemented in a mass of jumper wires and often take up multiple breadboards.... | 10 | 6 | [
{
"comment_id": "6407046",
"author": "PhDummy",
"timestamp": "2021-12-15T09:30:01",
"content": "I have the same dejavu feeling.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6407069",
"author": "Shannon",
"timestamp": "2021-12-15T12:22:03",
"conte... | 1,760,372,853.347765 | ||
https://hackaday.com/2021/12/14/a-programming-language-to-express-programming-frustration/ | A Programming Language To Express Programming Frustration | Bryan Cockfield | [
"Software Hacks"
] | [
"ahhh",
"code",
"coding",
"esoteric",
"frustration",
"language",
"programming",
"scream"
] | Programming can be a frustrating endeavor. Certainly we’ve all had moments, such as forgetting punctuation in C or messing up whitespace in Python. Even worse, an altogether familiar experience is making a single change to a program that should have resulted in a small improvement but instead breaks the program. Now, t... | 26 | 14 | [
{
"comment_id": "6407015",
"author": "DainBramage",
"timestamp": "2021-12-15T05:51:53",
"content": "That is hilarious!Perhaps someday it can be expanded upon by adding the letters R and G. Perhaps that version could be called “AHHHRRGH”.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,853.690496 | ||
https://hackaday.com/2021/12/14/pcb-microsurgery-puts-the-bodges-inside-the-board/ | PCB Microsurgery Puts The Bodges Inside The Board | Dan Maloney | [
"Repair Hacks"
] | [
"blind via",
"bodge",
"copper",
"epoxy",
"fr4",
"pcb",
"repair",
"trace",
"via"
] | We all make mistakes, and there’s no shame in having to bodge a printed circuit board to fix a mistake. Most of us are content with cutting a trace or two with an Xacto or adding a bit of jumper wire to make the circuit work. Very few of us, however, will decide to
literally do our bodges inside the PCB itself
.
The st... | 23 | 11 | [
{
"comment_id": "6406969",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2021-12-15T00:40:46",
"content": "Wow! #1 having the ability to mill anything at that scale.Wow! #2 having the ability to mill fractional depths of a PCB layerWow! #3 removing the PCB from the mill and returnin... | 1,760,372,853.297494 | ||
https://hackaday.com/2021/12/14/fabulous-flexure-mechanism-makes-for-resetting-cat-calendar/ | Fabulous Flexure Mechanism Makes For Resetting Cat Calendar | Kristina Panos | [
"Lifehacks",
"Misc Hacks"
] | [
"calendar",
"flexures"
] | When we met [Amy Makes Stuff] at the 2019 Hackaday Superconference, we were immediately impressed with the array of flexure mechanisms displayed on a board hanging around her neck. That must be where we saw [Amy]’s original version of the cat calendar — a simple way to know for sure whether the shared house’s cat has b... | 18 | 9 | [
{
"comment_id": "6406936",
"author": "vib",
"timestamp": "2021-12-14T21:23:57",
"content": "Nice to see a video without gesticulating monkey like the videos of many youtubers. It´s a decent and simple demonstration. Refreshing !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,372,853.402508 | ||
https://hackaday.com/2021/12/14/what-really-goes-wrong-with-your-tablet/ | What Really Goes Wrong With Your Tablet | Jenny List | [
"Repair Hacks"
] | [
"repair",
"right to repair",
"statistics"
] | We’ve all seen our share of consumer electronic devices that need repair. It’s inevitable that, however well-cared-for it will be, there’s always the unforseen that brings its life to an end. Many of us will be using devices we’ve repaired ourselves, because often other people’s useless broken electronics can be our fr... | 33 | 10 | [
{
"comment_id": "6406900",
"author": "Greg A",
"timestamp": "2021-12-14T19:46:01",
"content": "i’m pretty comfortable with the usual replace the screen, replace the battery, replace the keyboard sort of stuff..i’m starting to come around to being able to deal with the glued-in batteries and crap too... | 1,760,372,853.525486 | ||
https://hackaday.com/2021/12/14/orbital-safety-the-challenges-of-surviving-space-junk/ | Orbital Safety: The Challenges Of Surviving Space Junk | Maya Posch | [
"Original Art",
"Science",
"Space"
] | [
"iss",
"orbital debris",
"Satellites",
"spacejunk"
] | Hanging around in earth orbit is like walking into the middle of a Wild West gunfight — bullets are flying around everywhere, and even though none are purposefully aimed at you, one might have your name on it. Many of these bullets are artificial satellites that are actively controlled and monitored, but we also find d... | 22 | 8 | [
{
"comment_id": "6406874",
"author": "SteveS",
"timestamp": "2021-12-14T18:04:40",
"content": "> bullets are flying around everywhere, and even though none are purposefully aimed at you, one might have your name on it.What’s the old saying? “It’s not the bullet with my name on it that worries me, it... | 1,760,372,853.462272 | ||
https://hackaday.com/2021/12/14/automated-turret-keeps-dorm-clean-robocop-style/ | Automated Turret Keeps Dorm Clean,RoboCopStyle | Robin Kearey | [
"home hacks",
"Microcontrollers"
] | [
"automated turret",
"cleaning",
"dorm"
] | Students’ dorm rooms are not generally known to be the most orderly of places. Whether it’s mountains of dishes in the sink, piles of clothes waiting to be washed, or random bits and bobs strewn across the hallway, cleaning up is pretty low on the agenda for many dorm dwellers.
[Luis Marx] seems to have invented a usef... | 17 | 11 | [
{
"comment_id": "6406856",
"author": "X",
"timestamp": "2021-12-14T16:49:05",
"content": "What an ingenious way to avoid human interaction.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6406876",
"author": "tekkieneet",
"timestamp": "2021-12-14T18:08:... | 1,760,372,853.741902 | ||
https://hackaday.com/2021/12/14/teardown-verizon-ac791l-jetpack-4g-mobile-hotspot/ | Teardown: Verizon AC791L Jetpack 4G Mobile Hotspot | Tom Nardi | [
"Hackaday Columns",
"Teardown"
] | [
"4g",
"cdma",
"hotspot",
"netgear",
"qualcomm",
"verizon"
] | The saying “time and tide wait for no man” is usually used as a verbal kick in the pants, a reminder that sometimes an opportunity must be seized quickly before it passes by. But it can also be interpreted as a warning about the perpetual march of time and how it impacts the world around us. In that case, we would do w... | 24 | 12 | [
{
"comment_id": "6406828",
"author": "Ostracus",
"timestamp": "2021-12-14T15:41:15",
"content": "“Ten T4 screws hold the back panel of the Jetpack on, and while they did get cute and put a sticker over one of them to rat out the owner should they dare to explore their own hardware, there was no prob... | 1,760,372,853.900719 | ||
https://hackaday.com/2021/12/14/oh-deere-is-that-right-to-repair-resolution-troubling-you/ | Oh Deere, Is That Right To Repair Resolution Troubling You? | Jenny List | [
"News",
"Repair Hacks"
] | [
"john deere",
"legal",
"right to repair"
] | Over the years a constant in stories covering the right to repair has come from an unexpected direction, the farming community. Their John Deer tractors, a stalwart of North American agriculture, have become difficult to repair due to their parts using DRM restricting their use to authorised Deere agents. We’ve covered... | 103 | 32 | [
{
"comment_id": "6406789",
"author": "Chris",
"timestamp": "2021-12-14T12:36:16",
"content": "I would never even consider buying a John Deer until they remove 100% of the electronic blocks preventing owner service of their equipment.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,854.033628 | ||
https://hackaday.com/2021/12/14/diy-semi-auto-grinder-builds-itself-sort-of/ | DIY Semi Auto Grinder Builds Itself (Sort Of) | Dave Rowntree | [
"Tool Hacks"
] | [
"aluminum extrusion",
"angle grinder",
"automatic"
] | [JSK-koubou] is no stranger to making tools to improve their work, and this latest video is yet another in a long list of such builds, just checkout their YT channel to see the many other examples. The tool being highlighted this time is a
semi-automatic grinder
(Video, embedded below) which could be very handy in many... | 12 | 8 | [
{
"comment_id": "6406772",
"author": "volt-k",
"timestamp": "2021-12-14T11:19:01",
"content": "And apparently the plans/instructions you buy are in Japanese only. “please use Chrome’s Google automatic translation.” – come on, we all know how well that works.",
"parent_id": null,
"depth": 1,
... | 1,760,372,854.086465 | ||
https://hackaday.com/2021/12/13/pit-your-wits-against-british-spooks/ | Pit Your Wits Against British Spooks | Jenny List | [
"Holiday Hacks"
] | [
"christmas",
"GCHQ",
"puzzle"
] | The festive season is upon us, and for Brits of a technical bent that means
it’s time for the GCHQ Christmas Challenge
. Sent out annually as part of the Christmas card from the UK’s intelligence centre, this is a chance for would-be spooks to pit their wits against some of the nation’s cleverest cryptologists whose wo... | 13 | 7 | [
{
"comment_id": "6406755",
"author": "genixia",
"timestamp": "2021-12-14T08:01:04",
"content": "I’d just like to say Thank You to all those clever chaps and chappesses at GCHQ for keeping the United Kingdom safe this Christmas!",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,854.363492 | ||
https://hackaday.com/2021/12/13/mining-and-refining-from-red-dirt-to-aluminum/ | Mining And Refining: From Red Dirt To Aluminum | Dan Maloney | [
"chemistry hacks",
"Engineering",
"Featured",
"Original Art",
"Slider"
] | [
"aluminum",
"bauxite",
"smelting"
] | No matter how many syllables you use to say it, aluminum is one of the most useful industrial metals we have. Lightweight, strong, easily alloyed, highly conductive, and easy to machine, cast, and extrude, aluminum has found its way into virtually every industrial process and commercial product imaginable.
Modern life ... | 29 | 16 | [
{
"comment_id": "6406574",
"author": "Severe Tire Damage",
"timestamp": "2021-12-13T15:26:32",
"content": "I love articles like this. Why bauxite you might add? Especially given that aluminum makes up 8 percent of the crust? The problem is that most of that 8 percent is locked up in silicate mine... | 1,760,372,854.551342 | ||
https://hackaday.com/2021/12/13/new-pi-zero-gains-unapproved-antennas-yet-again/ | New Pi Zero Gains Unapproved Antennas Yet Again | Arya Voronova | [
"Raspberry Pi",
"Wireless Hacks"
] | [
"raspberry pi",
"Raspberry Pi Zero 2 W",
"u.fl",
"wifi",
"wifi antenna"
] | We’ve only started to tap into the potential of the brand new Pi Zero 2. Having finally received his board, [Brian Dorey]
shows us how to boost your Pi’s WiFi
, the hacker way. Inline with the onboard WiFi antenna can be found a u.FL footprint, and you just know that someone had to add an external antenna. This is wher... | 25 | 9 | [
{
"comment_id": "6406536",
"author": "Shirley Marquez",
"timestamp": "2021-12-13T12:45:25",
"content": "The article shows it with a short u.FL to SMA cable and an SMA antenna. That antenna was probably harvested from an old desktop wireless router, not a laptop; many of them have antennas that can b... | 1,760,372,854.27376 | ||
https://hackaday.com/2021/12/13/active-pickguard-makes-for-a-great-guitar-mod/ | Active Pickguard Makes For A Great Guitar Mod | Lewin Day | [
"Musical Hacks"
] | [
"digital signal processing",
"dsp",
"electric guitar",
"guitar",
"pickguard"
] | Much discussion goes on in the guitar world about the best hardware to use. Whether its pickups, how they’re positioned, or even the specific breed of wood on the fretboard, it’s all up for debate. [Eli Hughes] put much of that to one side, however,
with his innovative “Active Pickguard” project.
The project reimagines... | 6 | 6 | [
{
"comment_id": "6406532",
"author": "Dan",
"timestamp": "2021-12-13T12:01:03",
"content": "Line-6 have been doing this for years; love my bass. Pretty impressive as a DIY though!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6406554",
"author": "Chuck Ma... | 1,760,372,854.314236 | ||
https://hackaday.com/2021/12/12/kerry-wong-is-really-into-scope-meters/ | [Kerry Wong] Is Really Into Scope Meters | Al Williams | [
"Teardown",
"Tool Hacks"
] | [
"hantek",
"oscilloscope",
"own",
"scopemeter"
] | If a combination multimeter and oscilloscope is on your holiday shopping list this year, you might want to have a look at some of [Kerry Wong’s]
recent videos on the subject
. Over several videos he looks at — inside and out — an OWON HDS272S and a Hantek 2D72, both reasonably inexpensive entries in the field. Both ins... | 13 | 9 | [
{
"comment_id": "6406550",
"author": "ledtester",
"timestamp": "2021-12-13T13:36:47",
"content": "Also check out the youtube channel’s TheHWCave for an extensive review of the HDS272S:#104 A closer look at the OWON HDS272S Scope meter — TheHWCavehttps://youtu.be/6v2UhBz3xZU",
"parent_id": null,
... | 1,760,372,854.211799 | ||
https://hackaday.com/2021/12/12/differential-probe-clocks-at-100mhz-and-200/ | Differential Probe Clocks At 100MHz And $200 | Al Williams | [
"Tool Hacks"
] | [
"differential probe",
"micsig",
"scope probe"
] | [Voltlog] often looks at interesting test equipment and in the video below he reviews something that isn’t very common in hobby labs:
a differential oscilloscope probe
. These are usually pretty expensive, but the Micsig probe in the video costs under $200. The question, of course, is what do you need with a differenti... | 12 | 8 | [
{
"comment_id": "6406472",
"author": "Mike Massen, Perth, Western Australia",
"timestamp": "2021-12-13T03:25:41",
"content": "Good to see product reviews that could provoke augmentation of various types. Been using differential probes for decades. Some good design guides from the oldie NS linear ca... | 1,760,372,855.252986 | ||
https://hackaday.com/2021/12/12/hackaday-links-december-12-2021/ | Hackaday Links: December 12, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"fiire",
"hackaday links",
"helicopter",
"Ingenuity",
"mars",
"MC4",
"Mike Szczys",
"music theory",
"password",
"security",
"Solar City",
"tesla"
] | It looks as though the Mars Ingenuity flight team is starting to press the edge of the envelope a bit. The tiny rotorcraft, already 280-something sols into a mission that was only supposed to last for about 30 sols, is taking riskier flights than ever before, and
things got particularly spicy during flight number 17 th... | 14 | 10 | [
{
"comment_id": "6406429",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2021-12-13T00:21:05",
"content": "Not diagonal driving, but tighter circles.And [un]parking with very little room.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6406439"... | 1,760,372,854.432998 | ||
https://hackaday.com/2021/12/12/resin-stacking-proves-messy-and-difficult/ | Resin Stacking Proves Messy And Difficult | Lewin Day | [
"3d Printer hacks"
] | [
"3d printing",
"resin printer",
"resin printing",
"resin stacking"
] | 3D printers are typically the tool you use when you want a one-off quick prototype. However, more and more, they’re being used to produce things in quantity. [Uncle Jessy]
decided to try out the resin stacking technique
in order to quickly produce many figurines on his resin printer. However, not everything went exactl... | 15 | 2 | [
{
"comment_id": "6406387",
"author": "Anonymous",
"timestamp": "2021-12-12T21:13:23",
"content": "Neat idea, but I’m purposefully not clicking “play” on this one due to the awful click-bait thumbnail with photoshopped caricature facial features.",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,372,854.479309 | ||
https://hackaday.com/2021/12/13/measuring-air-quality-using-mobile-sensors-for-the-masses/ | Measuring Air Quality Using Mobile Sensors For The Masses | Robin Kearey | [
"green hacks"
] | [
"air quality",
"citizen science",
"pm2.5",
"pollution monitoring"
] | Poor air quality is a major problem for city dwellers the world over. Dust, smoke, particles and noxious gases from vehicles, industry and agriculture makes many megacities downright hazardous to live in. Pinpointing the source of pollution and developing strategies for mitigation requires accurate data on pollutant le... | 8 | 2 | [
{
"comment_id": "6406727",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2021-12-14T03:08:26",
"content": "But I suspect oppressive governments will not want information about air quality to be gathered and exported.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,854.705427 | ||
https://hackaday.com/2021/12/13/a-self-righting-balancing-robot-configured-the-easy-way/ | A Self Righting Balancing Robot Configured The Easy Way | Dave Rowntree | [
"Robots Hacks"
] | [
"balancing bot",
"BMO055",
"ESP32-WROOM-32",
"IMU",
"oled",
"QR codes",
"self righting",
"two wheeler"
] | Norwegian electronics hacker [Hans Jørgen] aka [time expander] on YouTube, has a clear interest in robotics, and for his latest effort, decided that it was time to build a custom controller platform. Since [Hans] had a pile of Dynamixel servo motors lying around to test it with, a good first project for the platform wa... | 2 | 2 | [
{
"comment_id": "6407304",
"author": "Drone",
"timestamp": "2021-12-16T07:28:39",
"content": "Drifty thing, isn’t it? Maybe Kalman can help.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6407747",
"author": "Erik",
"timestamp": "2021-12-17T17:39:15",
... | 1,760,372,854.665493 | ||
https://hackaday.com/2021/12/13/an-open-source-detector-for-identifying-plastics/ | An Open Source Detector For Identifying Plastics | Tom Nardi | [
"green hacks",
"handhelds hacks"
] | [
"infrared",
"plastic recycling",
"recycling",
"spectroscopy"
] | One of the challenges involved in recycling plastic is determining the specific
type
of plastic a given item is actually made of. To keep up with demand, large scale recycling centers rely on various automated systems to separate different types of plastic from a stream of incoming material. But in less technologically... | 19 | 11 | [
{
"comment_id": "6406693",
"author": "Thinkerer",
"timestamp": "2021-12-13T22:42:21",
"content": "This may have some use for single-component polymers, but very few things you run into in the real world are that. Laminates, coextrusions, copolymers, coatings, colorants, fillers, adhesives, tie laye... | 1,760,372,855.008732 | ||
https://hackaday.com/2021/12/13/usb-led-christmas-tree-is-making-spirits-bright/ | USB LED Christmas Tree Is Making Spirits Bright | Kristina Panos | [
"Holiday Hacks"
] | [
"christmas tree",
"led",
"pcb",
"usb"
] | [Piotr SB] knows there is no way out of the holidays; the only path is through. You’ve got to find cheer wherever and however you can, so why not cater to your own interests and build
the cutest little LED Christmas tree you ever did see?
And did we mention it’s USB and absolutely free (as in carols, not eggnog)?
This ... | 9 | 5 | [
{
"comment_id": "6406651",
"author": "vib",
"timestamp": "2021-12-13T20:00:10",
"content": "it´s missing clac-clac-clac keys and a soap dispenser of kitsch",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6406691",
"author": "Dustin Evans",
"timestamp": ... | 1,760,372,854.8708 | ||
https://hackaday.com/2021/12/13/ask-hackaday-are-extruders-the-only-feasible-tools-for-toolchanging/ | Ask Hackaday: Are Extruders The Only Feasible Tools For Toolchanging? | Donald Papp | [
"Ask Hackaday",
"Hackaday Columns",
"Slider"
] | [
"3D Printering",
"3D printers",
"Ask Hackaday",
"extruder",
"toolchanging"
] | Toolchanging in 3D printers is no longer something from the bleeding edge; it’s going mainstream.
E3D has a high-quality kit
for a toolchanger and motion system, our own Joshua Vasquez has shared details about
the open-source toolchanging Jubilee design
, and just recently Prusa3D formally announced the
Prusa XL
, whic... | 35 | 15 | [
{
"comment_id": "6406626",
"author": "schobi",
"timestamp": "2021-12-13T18:22:50",
"content": "I would love to see extruder with a thick and thin nozzle. Fast print, but accurate surfaces.But this might be challenging for the slicer",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,854.952964 | ||
https://hackaday.com/2021/12/13/design-for-test-hack-chat/ | Design For Test Hack Chat | Dan Maloney | [
"Hackaday Columns"
] | [
"Hack Chat"
] | Join us on Wednesday, December 15 at noon Pacific for the
Design for Test Hack Chat
with
Duncan Lowder
!
If your project is at the breadboard phase, or even if you’ve moved to a PCB prototype, it’s pretty easy to know if it works. It either does what it’s supposed to do, or it doesn’t, and a few informal tests will pro... | 3 | 3 | [
{
"comment_id": "6406698",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2021-12-13T23:04:32",
"content": "I hope listen in.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6406716",
"author": "Scikris",
"timestamp": "2021-12-14T00:48:0... | 1,760,372,855.044075 | ||
https://hackaday.com/2021/12/13/adding-wire-races-improves-3d-printed-bearings/ | Adding Wire Races Improves 3D-Printed Bearings | Dan Maloney | [
"Misc Hacks"
] | [
"3d printing",
"ball bearing",
"bearing",
"composite",
"lubricant",
"power transmission",
"ptfe",
"races",
"teflon",
"wire"
] | Like a lot of power transmission components, bearings have become far easier to source than they once were. It used to be hard to find exactly what you need, but now quality bearings are just a few clicks away. They’re not always cheap though, especially when you get to the larger sizes, so knowing
how to print your ow... | 38 | 6 | [
{
"comment_id": "6406586",
"author": "robomonkey",
"timestamp": "2021-12-13T16:18:59",
"content": "Wonder if he could use the wire rings and bearings to transport power or signal to the rotating layer.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6406609",... | 1,760,372,855.116641 | ||
https://hackaday.com/2021/12/12/atari-130xe-keyboard-now-goes-clack/ | Atari 130XE Keyboard Now Goes Clack | Kristina Panos | [
"Peripherals Hacks"
] | [
"atari",
"Atari 130XE",
"Kailh box pinks",
"keyboard",
"restomod"
] | Performing a resto-mod on a beloved piece of childhood technology can be quite a ride. In [Bertrand]’s case, it was the keyboard to their Atari 130XE. Although it has those cool double-shot keycaps, they’re hiding
a crappy membrane underneath that could really benefit from a mechanical upgrade
. Relax — the membrane pa... | 10 | 4 | [
{
"comment_id": "6406390",
"author": "heatgap",
"timestamp": "2021-12-12T21:25:54",
"content": "Well done friend. I’m a fan of the brown keys myself but its all user preference! Great job!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6406409",
"author": ... | 1,760,372,855.203331 | ||
https://hackaday.com/2021/12/12/a-nested-gear-clock/ | A Nested Gear Clock | Matthew Carlson | [
"clock hacks",
"cnc hacks"
] | [
"3d printed",
"clock",
"cnc",
"gears",
"lathe"
] | One of the most common projects we see here at Hackaday is a clock. It could just be that we as humans are fascinated by the concept of time or that making a piece of functional art appeals to our utilitarian sense. In that spirit, [Alexandre Chappel]
set out to make a large mechanical clock with complex gears
.
The in... | 11 | 6 | [
{
"comment_id": "6406310",
"author": "Gravis",
"timestamp": "2021-12-12T15:24:12",
"content": "Very cool…. but I wouldn’t want to have to repair that monster when it fails.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6406330",
"author": "vib",
"time... | 1,760,372,855.162413 | ||
https://hackaday.com/2021/12/12/customize-these-3d-printed-cases/ | Customize These 3D Printed Cases | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"enclosures"
] | Building something, of course, requires your electronics skills. But packaging it is often an exercise in mechanics. You can buy off the shelf, of course, but sometimes it is hard to find just the right enclosure. You probably have a 3D printer, too, but sometimes 3D printing an entire case can be time consuming and is... | 27 | 4 | [
{
"comment_id": "6406286",
"author": "Winston",
"timestamp": "2021-12-12T13:26:53",
"content": "Do the same in FREE OpenSCAD and I’ll be interested.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6406288",
"author": "Al Williams",
"timestamp"... | 1,760,372,856.145612 | ||
https://hackaday.com/2021/12/12/wearables-can-detect-the-flu-well-maybe/ | Wearables Can Detect The Flu? Well…Maybe… | Orlando Hoilett | [
"Medical Hacks",
"Wearable Hacks"
] | [
"Big Ideas Lab",
"cold",
"COVID",
"Covid-19",
"E4",
"Empatica",
"influenza",
"machine learning",
"rhinovirus"
] | Surprisingly there are no pre-symptomatic screening methods for the common cold or the flu, allowing these viruses to spread unbeknownst to the infected. However, if we could detect when infected people will get sick even before they were showing symptoms, we could do a lot more to contain the flu or common cold and po... | 15 | 5 | [
{
"comment_id": "6406324",
"author": "Helen Blakemore",
"timestamp": "2021-12-12T16:38:25",
"content": "Intellectual Property fraud, all smartwatches contain pirated sensor software owned by brand Smart Watch. Many brands passing off selling thousands of counterfeits online and highstreet shops.",
... | 1,760,372,855.300387 | ||
https://hackaday.com/2021/12/11/a-diy-biometric-device-with-some-security-considerations/ | A DIY Biometric Device With Some Security Considerations | Orlando Hoilett | [
"Medical Hacks",
"Wearable Hacks"
] | [
"Amtel",
"ATECC608A",
"ATmega4808",
"ATWINC1510",
"AVR",
"AWS",
"dev board",
"IoT",
"microchip",
"security",
"wifi"
] | Biohacking projects are not new to Hackaday and it’s certainly a genre that really piques our interest. Our latest biohacking device comes courtesy of [Manivannan] who brings his flavor of a
wearable biosensor with some security elements built-in through AWS
.
The hardware is composed of some impressive components we h... | 8 | 4 | [
{
"comment_id": "6406190",
"author": "O",
"timestamp": "2021-12-12T03:11:29",
"content": "How is piping health data through AWS going to ADD security?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6406207",
"author": "__f",
"timestamp": "202... | 1,760,372,855.388596 | ||
https://hackaday.com/2021/12/11/we-all-live-in-a-pvc-submarine/ | We All Live In A PVC Submarine | Al Williams | [
"Transportation Hacks"
] | [
"PVC",
"rov",
"submarine",
"submersible"
] | We doubt you could really live in [Pena’s]
PVC submarine
, but now the song’s stuck in our head anyway. Although the post is in Portuguese, you can get a pretty good idea of how it works, and translation software is better than ever. Transcending the language barrier, there are videos of just about every step of the co... | 11 | 5 | [
{
"comment_id": "6406170",
"author": "Tiago Daitx",
"timestamp": "2021-12-12T01:13:58",
"content": "This sub only goes to a depth of 10 meters and does not seem to rely on buoyancy controls of any sort. It uses a central motor (vertically aligned) to control the depth. The two long rods on the top s... | 1,760,372,855.529321 | ||
https://hackaday.com/2021/12/11/vacuum-forming-with-3d-printer-filament/ | Vacuum Forming With 3D Printer Filament | Tom Nardi | [
"3d Printer hacks",
"classic hacks"
] | [
"3d printer filament",
"conformal",
"mesh",
"vacuum forming"
] | Even if they don’t have one themselves, we’d wager the average Hackaday reader is at least vaguely aware of how a vacuum former works on a fundamental level. You heat up a plastic sheet until it’s soft, then use a vacuum pump to pull the ductile material down onto an object and hold it there while it cools off. It’s ea... | 17 | 11 | [
{
"comment_id": "6406144",
"author": "iuihuih",
"timestamp": "2021-12-11T22:21:27",
"content": "vacuuming a sheet with large holes in it is probably not the best",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6406251",
"author": "Bart",
"time... | 1,760,372,855.59249 | ||
https://hackaday.com/2021/12/10/lasers-make-pcbs-the-old-fashioned-way/ | Lasers Make PCBs The Old Fashioned Way | Al Williams | [
"Laser Hacks"
] | [
"laser",
"pcb",
"photoresist",
"Printed Circuit Board"
] | There are many ways to create printed circuit boards, but one of the more traditional ways involves using boards coated with photoresist and exposing the desired artwork on the board, usually with UV light. Then you develop the board like a photograph and etch it in acid. Where the photoresist stays, you’ll wind up wit... | 46 | 18 | [
{
"comment_id": "6405854",
"author": "vib",
"timestamp": "2021-12-10T21:03:10",
"content": "good luck doing a double sided board that way … alignment won´t be easy",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6405858",
"author": "aaroncnc",
... | 1,760,372,855.730002 | ||
https://hackaday.com/2021/12/10/an-nfc-antenna-ring-with-a-chip-as-its-jewel/ | An NFC Antenna Ring With A Chip As Its Jewel | Jenny List | [
"Radio Hacks",
"Wearable Hacks"
] | [
"antenna",
"contactless",
"NFC"
] | Contactless payment by means of NFC-enabled bank cards has made our everyday transactions far more convenient over the last decade, but there still remains the tedious task of finding the card and waving it over the reader. Maybe embedded chips are a step too far for many of us, but how about a bank card in a wearable ... | 12 | 5 | [
{
"comment_id": "6405845",
"author": "hartl",
"timestamp": "2021-12-10T20:21:52",
"content": "Depending on where you live, this might backfire. Here in Austria, NFC-enabled debit cards want to be “contacted” every now and then, else they will refuse further contactless transactions. That’s for secur... | 1,760,372,855.652302 | ||
https://hackaday.com/2021/12/10/today-is-my-last-day-at-hackaday-thanks-for-all-the-hacks/ | Today Is My Last Day At Hackaday; Thanks For All The Hacks! | Mike Szczys | [
"Featured",
"Slider"
] | [
"don't be a stranger bud!",
"hackaday",
"szczys"
] | I have decided to make a career move and have accepted a position as Developer Relations Engineer at
Golioth.io
. I’m happy to announce that Elliot Williams will be the next Editor in Chief of Hackaday.
Right now I’m in my 13th year at Hackaday, having started in the summer of 2009. But like all of the Hackaday writing... | 119 | 50 | [
{
"comment_id": "6405795",
"author": "Jenny List",
"timestamp": "2021-12-10T18:05:45",
"content": "Thanks Mike, it has been great working with you.Best of luck in the new endeavour, and don’t be a stranger!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "640579... | 1,760,372,856.045203 | ||
https://hackaday.com/2021/12/10/hackaday-podcast-148-pokemon-trades-anniversary-ipod-prototype-stupid-satellite-tricks-and-led-strip-sensors/ | Hackaday Podcast 148: Pokemon Trades, Anniversary IPod Prototype, Stupid Satellite Tricks, And LED Strip Sensors | Mike Szczys | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Hackaday editors Elliot Williams and Mike Szczys get caught up on the week that was. People go to great lengths for video game saves, but this Pokemon hack that does hardware-based trade conversion between the Game Boy’s Pokemon 2 and Pokemon 3 is something else. Why do we still use batteries when super capacitors exis... | 2 | 2 | [
{
"comment_id": "6406653",
"author": "Adrian",
"timestamp": "2021-12-13T20:05:53",
"content": "Re using the Pokemon transfer skills to interface mainframes with modern web tech: there’s software for that. Back in the early 2000’s most of the online banking and airline sites ran on screen scraping ha... | 1,760,372,856.086796 | ||
https://hackaday.com/2021/12/10/diy-analog-synth-looks-like-fun/ | DIY Analog Synth Looks Like Fun | Rich Hawkes | [
"Musical Hacks"
] | [
"analog synth",
"cem3340",
"diy analog synth"
] | The relative ease of building the individual components that make up an analog synth make it very tempting to DIY your own. That’s what [Albert Nyström] did and the result is this
great looking, and great sounding, analog synth
.
The VCOs in his monosynth are based around the AS3340 VCO chip, which is a clone of the
Cu... | 11 | 9 | [
{
"comment_id": "6405789",
"author": "Michael Black",
"timestamp": "2021-12-10T17:02:09",
"content": "I never built a synthesizer, but spent a lot of time decades ago trying all kinds of circuits. Not only did I learn new electronic things, but learned how instruments made their sounds.A modular sy... | 1,760,372,857.907064 | ||
https://hackaday.com/2021/12/10/this-week-in-security-printing-shellz-ms-officecmd-and-ai-security/ | This Week In Security: Printing Shellz, Ms-officecmd, And AI Security | Jonathan Bennett | [
"Hackaday Columns",
"Security Hacks",
"Slider"
] | [
"air-gapped",
"NPM",
"Printing Shellz",
"This Week in Security",
"uri"
] | Researchers at f-secure have developed an impressive new attack, leveraging HP printers as an unexpected attack surface.
Printing Shellz
(
PDF
) is a one-click attack, where simply visiting a malicious webpage is enough to get a shell and reverse proxy installed to a printer on the same network. The demo below uses a c... | 18 | 9 | [
{
"comment_id": "6405772",
"author": "IcyLetters",
"timestamp": "2021-12-10T15:08:21",
"content": "Just missed the zero-day for Log4Shell lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6405779",
"author": "gudenau",
"timestamp": "2021-12-10T15:53:2... | 1,760,372,858.19799 | ||
https://hackaday.com/2021/12/10/digital-painting-on-an-ipad-with-real-brushes/ | Digital Painting On An IPad With Real Brushes | Lewin Day | [
"Tablet Hacks"
] | [
"digital art",
"drawing tablet",
"graphics tablet",
"image",
"ipad"
] | Drawing tablets are a great way to make digital art, and iPads and other tablets are similarly popular in this area. However, they all typically involve using some sort of special stylus for input. [Richard Greene] developed another method, with Light Strokes for the iPad letting one “paint”
with real paint brushes ins... | 8 | 6 | [
{
"comment_id": "6405746",
"author": "vib",
"timestamp": "2021-12-10T12:44:09",
"content": "Brilliant execution of a nice idea. It´s a pity that the framerate of the camera is too low, leading to a scale effect as soon as the tool moves swiftly.Looking forward for an upgraded version of this periphe... | 1,760,372,858.003185 | ||
https://hackaday.com/2021/12/11/getting-familiar-with-round-displays/ | Getting Familiar With Round Displays | Lewin Day | [
"Parts"
] | [
"circular display"
] | Once upon a time, maker projects were limited to using simple character displays or those salvaged from popular Nokias, largely due to cost. These days, a small OLED or LCD is available for just a few bucks. However, you can go fancier, and [Mr. Volt] does just that with
an exploration of nice round displays
.
Using ro... | 29 | 10 | [
{
"comment_id": "6406094",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2021-12-11T18:19:11",
"content": "I haven’t gotten a’round to using circular displays.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6406100",
"author": "mathm... | 1,760,372,857.714083 | ||
https://hackaday.com/2021/12/11/has-diy-become-click-and-buy/ | Has DIY Become Click And Buy? | Elliot Williams | [
"Rants"
] | [
"diy",
"newsletter"
] | We are living in great times for DIY, although ironically some of that is because of all the steps that we
don’t
have to do ourselves. PCBs can be ordered out easily and inexpensively, and the mechanical parts of our projects can be ordered conveniently online,
fabricated in quantity one for not much more than a song
,... | 55 | 21 | [
{
"comment_id": "6406032",
"author": "BT",
"timestamp": "2021-12-11T15:16:27",
"content": "No fries with my DIY please!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6406112",
"author": "notCarl",
"timestamp": "2021-12-11T19:43:18",
... | 1,760,372,858.090987 | ||
https://hackaday.com/2021/12/11/snip-your-way-to-diy-pcb-castellations/ | Snip Your Way To DIY PCB Castellations | Dan Maloney | [
"Misc Hacks"
] | [
"castellated",
"castellation",
"edge",
"pcb",
"plated",
"via"
] | Castellated PCB edges are kind of magical. The plated semicircular features are a way to make a solid, low-profile connection from one board to another, and the way solder flows into them is deeply satisfying. But adding them to a PCB design isn’t always cheap. No worries there — you can
make your own castellations
wit... | 22 | 8 | [
{
"comment_id": "6406022",
"author": "vib",
"timestamp": "2021-12-11T14:11:06",
"content": "HEMIcírcular, not semicircular !!!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6406042",
"author": "The Commenter Formerly Known As Ren",
"timestam... | 1,760,372,857.811623 | ||
https://hackaday.com/2021/12/11/controller-swaps-can-save-an-hdd-if-you-do-it-right/ | Controller Swaps Can Save An HDD If You Do It Right | Lewin Day | [
"Repair Hacks"
] | [
"data recovery",
"hard disk",
"hard drive",
"hdd"
] | Hard drives are fragile and reliable all at once. It’s entirely possible to have a hard drive fail, even if your data is still in perfect condition on the magnetic platters inside. [Keith Sherry] was recently trying to recover data for a friend off a damaged hard drive, and demonstrated that modern twists on old tricks... | 22 | 13 | [
{
"comment_id": "6405979",
"author": "geocrasher",
"timestamp": "2021-12-11T09:09:37",
"content": "I DIY’d my own HDD recovery a few years ago. I wrote it up on my blog if anyone is interested:https://miscdotgeek.com/adventures-in-hard-drives/TL;DR: Freezer trick worked *just* long enough.",
"pa... | 1,760,372,858.145724 | ||
https://hackaday.com/2021/12/10/arduino-drives-faux-spirograph/ | Arduino Drives Faux Spirograph | Al Williams | [
"Arduino Hacks",
"Art"
] | [
"arduino",
"art",
"CNC shield",
"plotter",
"spirograph",
"stepper motor"
] | The holidays always remind us of our favorite toys from when we were kids. Johnny Astro, an Erector set, and — of course — a Spirograph. [CraftDiaries] has an
Arduino machine that isn’t quite a Spirograph
, but it sure reminds us of one. The Arduino drives two stepper motors that connect to a pen that can create some i... | 11 | 6 | [
{
"comment_id": "6405965",
"author": "Gravis",
"timestamp": "2021-12-11T07:10:16",
"content": "It’s built on the same principle as Spirograph which is why it looks like Spirograph: a mismatched number of steps per cycle for multi-axis system. The math describing this is surprisingly simple because ... | 1,760,372,857.852775 | ||
https://hackaday.com/2021/12/10/build-your-own-submarine/ | Build Your Own Submarine | Al Williams | [
"3d Printer hacks",
"Transportation Hacks"
] | [
"radio control",
"submarine",
"submersible"
] | If you are tried of building things that fly, why not try
a submarine
like [DIYPerks] did? As you can see in the video below, the key is to control buoyancy, and the mechanism used is impressive. The sub has two giant syringes fore and aft to compress or decompress water. The plungers are now 3D-printed actuators that ... | 22 | 7 | [
{
"comment_id": "6405942",
"author": "Michael Black",
"timestamp": "2021-12-11T03:26:52",
"content": "I think there were two submarines in Popular Science or Mechanics in the sixties, one on the cover. Build it yourself. Though more like a sled, it wasn’t waterproof, you wore a diving suit and sat ... | 1,760,372,857.963371 | ||
https://hackaday.com/2021/12/10/ninja-art-pcb-nightlight-jutsu/ | Ninja Art: PCB Nightlight Jutsu! | Orlando Hoilett | [
"Art",
"LED Hacks"
] | [
"anime",
"Jutsu",
"Masashi Kishimoto",
"Naruto",
"Naruto Shippuden"
] | This latest PCB artwork comes to you courtesy of [Arnov]. His
Naruto nightlight
is definitely going to get your anime-loving friends’ attention.
The LED illumination styles are controlled by an ATtiny13A microcontroller. He probably could have opted for a 555 timer with this one, but maybe he wanted easily programmable... | 3 | 1 | [
{
"comment_id": "6405928",
"author": "heatgap",
"timestamp": "2021-12-11T01:26:18",
"content": "Well done bro! Looks awesome!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6405947",
"author": "Qt",
"timestamp": "2021-12-11T03:45:59",
... | 1,760,372,857.752638 | ||
https://hackaday.com/2021/12/10/3d-printing-delivers-glass-eyes-in-record-time/ | 3D Printing Delivers “Glass” Eyes In Record Time | Al Williams | [
"Medical Hacks"
] | [
"3d printed prosthetic",
"prostheses",
"prosthetic",
"prosthetic eye"
] | Obviously, losing an eye would be bad for your vision. But if you think about it, it is also a detriment to your appearance. You might not need a prosthetic eye, and you can certainly rock an eye patch, but a lot of people with this problem get an artificial or “glass” eye. These glass eyes are hand-painted disks that ... | 13 | 4 | [
{
"comment_id": "6405720",
"author": "Stéphane",
"timestamp": "2021-12-10T09:09:44",
"content": "“In record time”, our you could say… In the blink of an eye",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6405917",
"author": "That kid",
"times... | 1,760,372,858.501823 | ||
https://hackaday.com/2021/12/09/sound-reactive-mannequin-arms-make-for-creepy-lounge-decor/ | Sound-Reactive Mannequin Arms Make For Creepy Lounge Decor | Lewin Day | [
"Misc Hacks"
] | [
"arms",
"led",
"leds",
"mannequin",
"pixelblaze"
] | Music visualizers were all the rage back in era of Winamp and Windows Media Player. They’re even cooler when they don’t just live on your computer screen, though,
as [Emily Velasco’s] latest project demonstrates.
The build consists of two mannequin arms on a board mounted on the wall. The arms were sourced for just $5 ... | 8 | 4 | [
{
"comment_id": "6405686",
"author": "Richard Peters",
"timestamp": "2021-12-10T06:43:01",
"content": "It’s gorgeous! I was very pleasantly surprised when the scintillation started!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6405698",
"author": "hacka... | 1,760,372,858.324001 | ||
https://hackaday.com/2021/12/09/apple-falling-division/ | Apple Falling Division | Al Williams | [
"ARM",
"Software Development",
"Software Hacks"
] | [
"arm",
"division",
"dsPIC30",
"math",
"newton",
"recipriocal",
"RISC-V"
] | [Paul Curtis] over at Segger has an interesting series of blog posts about
calculating division
. This used to be a hotter topic, but nowadays many computers or computer languages have support for multiplication and division built-in. But some processors lack the instructions and a library to do it might be less than i... | 23 | 7 | [
{
"comment_id": "6405657",
"author": "Alysson+Rowan",
"timestamp": "2021-12-10T03:54:36",
"content": "“… if we need to divide 34 by 6, you could rewrite 36/6 to 36 * 1/6 and the answer is the same.”I hope that is a typo, because 34/6 != 36/6 (the difference is statistically significant, too).",
... | 1,760,372,858.554577 | ||
https://hackaday.com/2021/12/09/beam-bird-pendant-really-chirps/ | BEAM Bird Pendant Really Chirps | Kristina Panos | [
"Solar Hacks"
] | [
"0603",
"beam",
"beam robotics",
"solar power"
] | [NanoRobotGeek] had a single glorious weekend between the end of the term and the start of exams. Did they buy a keg and party it up? No, in fact, quite the opposite — they probably gained a few brain cells by free-form soldering
this beautiful chirping bird pendant
at 0603 instead.
The circuit is a standard BEAM proje... | 16 | 5 | [
{
"comment_id": "6405609",
"author": "Steven",
"timestamp": "2021-12-10T00:41:54",
"content": "Awesome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6405622",
"author": "CRJEEA",
"timestamp": "2021-12-10T01:22:45",
"content": "I’ve always been a ... | 1,760,372,858.379845 | ||
https://hackaday.com/2021/12/09/the-ins-and-outs-of-casting-lenses-from-epoxy/ | The Ins And Outs Of Casting Lenses From Epoxy | Dan Maloney | [
"Misc Hacks"
] | [
"casting",
"epoxy",
"lens",
"mandrel",
"mirror",
"molding",
"optics",
"PDMS",
"resin",
"silicone"
] | If you need a lens for a project, chances are pretty good that you pick up a catalog or look up an optics vendor online and just order something. Practical, no doubt, but pretty unsporting, especially when it’s possible to
cast custom lenses at home
using silicone molds and epoxy resins.
Possible, but not exactly easy,... | 10 | 7 | [
{
"comment_id": "6405583",
"author": "CRJEEA",
"timestamp": "2021-12-09T21:11:07",
"content": "No doubt that size limit can be pushed a little further,especially with the right choice of liquid. Perhaps two liquids could be used, one with a density and one with a higher density than the lens medium ... | 1,760,372,858.774741 | ||
https://hackaday.com/2021/12/09/could-india-be-the-crucial-battleground-for-open-access-to-scientific-research/ | Could India Be The Crucial Battleground For Open Access To Scientific Research? | Jenny List | [
"Current Events",
"Interest"
] | [
"india",
"open-access",
"sci-hub"
] | One of the hottest topics in the world of scientific publishing over the last couple of decades has been the growing pressure to release the fruits of public-funded scientific research from the paywalled clutches of commercial publishers. This week comes news of a new front in this ongoing battle,
as a group of Indian ... | 16 | 6 | [
{
"comment_id": "6405580",
"author": "Daniel Matthews",
"timestamp": "2021-12-09T21:03:11",
"content": "Yes, without a doubt, it may even be the crucial battleground for democracy and openness in general.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6405620"... | 1,760,372,858.67516 | ||
https://hackaday.com/2021/12/09/keynote-video-dr-keith-thorne-explains-the-extreme-engineering-of-the-ligo-hardware/ | Keynote Video: Dr. Keith Thorne Explains The Extreme Engineering Of The LIGO Hardware | Mike Szczys | [
"cons",
"Hackaday Columns",
"Original Art",
"Science",
"Slider"
] | [
"2021 Hackaday Remoticon",
"gravitational waves",
"LIGO"
] | The
Laser Interferometer Gravitational-Wave Observatory (LIGO)
is a huge installation measured in kilometers that is listening for wrinkles in space-time. Pulling this off is a true story of hardware and software hacking, and we were lucky to have Dr. Keith Thorne dive into those details with
his newly published “Extre... | 18 | 11 | [
{
"comment_id": "6405550",
"author": "CRJEEA",
"timestamp": "2021-12-09T18:54:40",
"content": "Thanks for posting this, it’s always nice to have a little peak behind the proverbial curtain. I wonder if this hack for better time resolution will find uses in robotics. I wonder if their forecast for a ... | 1,760,372,858.732676 | ||
https://hackaday.com/2021/12/09/wearable-sensor-for-detecting-substance-use-disorder/ | Wearable Sensor For Detecting Substance Use Disorder | Orlando Hoilett | [
"Medical Hacks",
"Wearable Hacks"
] | [
"artificial intelligence",
"E4",
"Empatica",
"machine learning",
"opioid overdose",
"substance use disorder",
"supervised injection facility"
] | Oftentimes, the feature set for our typical fitness-focused wearables feels a bit empty. Push notifications on your wrist? OK, fine. Counting your steps? Sure, why not. But how useful are those capabilities anyway? Well, what if wearables could be used for a more dignified purpose
like helping people in recovery from s... | 14 | 5 | [
{
"comment_id": "6405515",
"author": "Pritchard",
"timestamp": "2021-12-09T16:56:11",
"content": "Can’t wait for these to be mandatory in the workplace.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6405531",
"author": "Frankel",
"timestamp"... | 1,760,372,858.823306 | ||
https://hackaday.com/2021/12/09/the-challenges-of-finding-a-substitute-for-human-blood/ | The Challenges Of Finding A Substitute For Human Blood | Maya Posch | [
"Featured",
"Medical Hacks",
"Original Art",
"Science",
"Slider"
] | [
"blood substitutes",
"blood transfusion",
"Fluosol"
] | Throughout history, the human body has been the subject of endless scrutiny and wonder. Many puzzled over the function of all these organs and fluids found inside. This included the purpose of blood, which saw itself alternately disregarded as being merely for ‘cooling the body’, to being responsible for regulating the... | 19 | 6 | [
{
"comment_id": "6405494",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2021-12-09T15:10:37",
"content": "And feeding vampires, don’t forget to build in vampire nutrition. Think of all the countless virgin lives that could be saved by a good artificial vampire smoothie!",
"par... | 1,760,372,858.94191 | ||
https://hackaday.com/2021/12/09/molding-complex-optics-in-a-completely-fluid-system/ | Molding Complex Optics In A Completely Fluid System | Dan Maloney | [
"Misc Hacks"
] | [
"3d printed lenses",
"lenses",
"optics"
] | Traditional lensmaking is a grind — literally. One starts with a piece of glass, rubs it against an abrasive surface to wear away the excess bits, and eventually gets it to just the right shape and size for the job. Whether done by machine or by hand, it’s a time-consuming process, and it sure seems like there’s got to... | 25 | 10 | [
{
"comment_id": "6405450",
"author": "Harvie.CZ",
"timestamp": "2021-12-09T12:43:49",
"content": "Two months later: Ben Krasnow of Applied Science mixes some epoxy in his garage and creates raspberry pi camera which outperforms James Webb telescope.",
"parent_id": null,
"depth": 1,
"repl... | 1,760,372,858.879904 | ||
https://hackaday.com/2021/12/09/ham-radio-ssb-transceiver-fits-in-pocket/ | Ham Radio SSB Transceiver Fits In Pocket | Al Williams | [
"Radio Hacks",
"Reviews"
] | [
"ham radio",
"QRP",
"sdr",
"software-defined radio"
] | Talking about this Chinese ham radio transceiver requires a veritable flurry of acronyms: HF, SSB, QRP, and SDR to start with. [Paul] does
a nice job of unboxing the rig and checking it out
. The radio is a clone of a German project and provides a low-power radio with a rechargeable battery. You can see his video about... | 32 | 14 | [
{
"comment_id": "6405417",
"author": "tyjuty",
"timestamp": "2021-12-09T09:22:58",
"content": "nice, but i need digital too.TNC2 or(and) usb for linux raspbery pi zero etc.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6405439",
"author": "VuctorKil... | 1,760,372,859.008714 | ||
https://hackaday.com/2021/12/08/mac-tip-diagnoses-your-old-zip-and-jaz-drives/ | MAC TIP Diagnoses Your Old Zip And Jaz Drives | Lewin Day | [
"Retrocomputing"
] | [
"diagnostic",
"jaz",
"mac",
"zip"
] | Trouble In Paradise (TIP) was a popular Windows-only tool for troubleshooting Iomega Jaz and Zip drives way back when. The drives have fallen out of favor with PC, but the drives are still highly prized amongst classic Mac collectors, who use the SCSI versions as boot disks for the vintage machines. Thus, [Marcio Luis... | 25 | 10 | [
{
"comment_id": "6405388",
"author": "Look Out Above",
"timestamp": "2021-12-09T06:23:01",
"content": "Amazing work!Once your drive or cartridge is diagnosed, how can you fix it?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6405497",
"author": "Pet... | 1,760,372,859.068781 | ||
https://hackaday.com/2021/12/08/almost-modern-teletype-is-silent/ | Almost-Modern TeleType Is Silent | Al Williams | [
"Retrocomputing"
] | [
"teletype",
"terminal",
"ti silent"
] | If you’ve ever used a real TeleType machine or seen a movie with a newsroom, you know that one TeleType makes a lot of noise and several make even more.[CuriousMarc] acquired the silent replacement, a real wonder of its day, the
TI Silent 703
. The $2,600 machine was portable if you think hauling a 25-pound suitcase ar... | 25 | 13 | [
{
"comment_id": "6405360",
"author": "Ken",
"timestamp": "2021-12-09T03:11:15",
"content": "“If you really want to get into TeleTypes, you can use one as a Linux console if you have a Baudot to ASCII decoder ring.”ASCII TeleTypes we’re very, very common in the timesharing world, and found a new home... | 1,760,372,859.197877 | ||
https://hackaday.com/2021/12/08/getting-rid-of-the-ghost-in-the-led/ | (Getting Rid Of) The Ghost In The LED | Ryan Flowers | [
"LED Hacks"
] | [
"diode capacitance",
"diode hacks",
"high efficiency",
"led",
"multiplex",
"multiplexing"
] | Multiplexing is a very old technology in which control signals are intermixed for the sake of being able to control more devices than there are control signals. For [mihai.cuciuc],
the problems started when he multiplexed some very efficient LEDs
.
The problem? In two banks of six LEDs each,
both
LEDs connected to a si... | 38 | 16 | [
{
"comment_id": "6405346",
"author": "Steve L",
"timestamp": "2021-12-09T01:01:44",
"content": "On this subject, LED’s these days are available in only three levels of brightness; blinding, eyeball-melting, or “starting the back of your head on fire” brightness. I believe that Oscar Vermeulen had a ... | 1,760,372,859.139862 | ||
https://hackaday.com/2021/12/08/an-easy-music-visualizer-with-the-arduino-nano/ | An Easy Music Visualizer With The Arduino Nano | Lewin Day | [
"Misc Hacks"
] | [
"audio visualizer",
"led",
"music visualization"
] | Flashing LEDs are all well and good, but they’re even better if they can sync up with ambient sounds or music. [mircemk] has built the LUMAZOID visualizer to do just that,
relying on some staple maker components to do so.
The build is open-source, and designed to work with strings of 60, 120, or 180 WS2812B LEDs. An Ar... | 3 | 2 | [
{
"comment_id": "6405305",
"author": "Juris+\"ThunderOwl\"+Perkons",
"timestamp": "2021-12-08T21:12:38",
"content": "Nice! I was very much in to music-to-lights couple of years ago. This is also interesting. Thank You for sharing!",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,859.235518 | ||
https://hackaday.com/2021/12/08/3d-printed-lithographic-moon-lamp/ | 3D Printed Lithographic Moon Lamp | Orlando Hoilett | [
"LED Hacks",
"Space"
] | [
"ESP32",
"lithographic",
"moon",
"rgb",
"RGB LED",
"thingiverse"
] | After years of being a software developer, [Chris] was excited to get back into embedded development and we’re glad he did. His
3D printed lithographic moon lamp
combines a number of hacker and maker skills, and is sure to impress.
3D-printed lithographic moons
have gotten pretty popular these days, so he was able to
f... | 16 | 6 | [
{
"comment_id": "6405271",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2021-12-08T19:32:22",
"content": "3 Watt LED? I’m thinking not a good project for PLA right?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6405311",
"author": ... | 1,760,372,859.326844 | ||
https://hackaday.com/2021/12/08/fail-of-the-week-hackaday-writer-attempts-xbox-repair/ | Fail Of The Week: Hackaday Writer Attempts XBox Repair | Dan Maloney | [
"Fail of the Week",
"Hackaday Columns",
"Slider"
] | [
"hot air station",
"repair",
"rework",
"smd",
"smt",
"xbox"
] | Like a lot of Hackaday readers, I pride myself on being “the fix-it guy” in my family. When something breaks, I get excited, because it’s a chance to show off my skills. It’s especially fun when something major breaks, like the fridge or the washing machine — repairs like that are a race against time, since I’ve got to... | 55 | 37 | [
{
"comment_id": "6405232",
"author": "Joe",
"timestamp": "2021-12-08T18:14:19",
"content": "Nice article. Repair skills regarding newer chip tech is very important to our community. Like many others I do not like to point out my fails. However learning from ones or others mistakes or misfortunes may... | 1,760,372,859.689253 | ||
https://hackaday.com/2021/12/08/squishy-robot-hardware-does-well-under-pressure/ | Squishy Robot Hardware Does Well Under Pressure | Sonya Vasquez | [
"how-to",
"Robots Hacks"
] | [
"3d printing pneumatic muscles",
"pneumatic muscles",
"soft robotics"
] | If your jealousy for Festo robots is festering, fret not! [mikey77] has shown us that, even without giant piggy banks, we can still construct some fantastic soft robotics projects with a 3D printer and a visit to the hardware store. To get started, simply step through the process with this
3D Printed Artificial Muscles... | 4 | 1 | [
{
"comment_id": "6405254",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2021-12-08T19:08:36",
"content": "Great job! I always find it hard to get a good vacuum seal when I attempt such projects.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id":... | 1,760,372,859.437142 | ||
https://hackaday.com/2021/12/08/made-to-spec-the-coming-age-of-prototyping-as-a-service/ | Made To Spec: The Coming Age Of Prototyping As A Service | Sonya Vasquez | [
"Engineering",
"Featured",
"hardware",
"Slider"
] | [
"cncmadness",
"prototyping",
"prototyping service",
"rapid prototyping laser",
"sendcutsend"
] | In the last decade, the price for making a single PCB plummeted. And we’ve featured tons of hacks with boards hailing from places like OSH Park or Seeed Studio. But this phenomenon isn’t isolated, and all sorts of one-off prototyping services are becoming cheaper and looking to satiate both hobbyist and engineer alike.... | 39 | 13 | [
{
"comment_id": "6405182",
"author": "onito",
"timestamp": "2021-12-08T15:24:31",
"content": "What nasty chemicals? All it takes to etch a PCB is a bottle of ferric chloride which can be reused over and over again.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id... | 1,760,372,859.595668 | ||
https://hackaday.com/2021/12/08/four-band-digital-hf-sdr-transceiver-offers-high-performance-for-only-60/ | Four Band Digital HF SDR Transceiver Offers High Performance For Only $60 | Ryan Flowers | [
"Radio Hacks"
] | [
"amateur radio",
"FT8",
"ham radio",
"JS8Call",
"QRP",
"sdr"
] | Amateur radio is a hobby that is often thought of as being exclusive to those with a healthy expendable income. In recent years however, the tides have turned. Cheap microcontrollers and signal generators have helped turned things around, and the
$60 USD QDX from QRP Labs
goes even further by sending the performance/pr... | 31 | 12 | [
{
"comment_id": "6405187",
"author": "DainBramage",
"timestamp": "2021-12-08T15:42:25",
"content": "That looks promising!Not into QRP myself, but I have a number of friends who are.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6405198",
"author": "Rey",
... | 1,760,372,859.759657 | ||
https://hackaday.com/2021/12/08/rubber-tyres-before-there-were-tyres/ | Rubber Tyres Before There Were Tyres | Jenny List | [
"Transportation Hacks"
] | [
"rubber tyre",
"tyre",
"wheel"
] | Sometimes there is pleasure in watching an expert demonstrating his craft, particularly so when the craft is unusual or disappearing. A video came our way of just such a thing, and it’s of a craft so rare that it’s possible few of us will have considered it. We’re used to buying tyres for our motor vehicles that come p... | 24 | 9 | [
{
"comment_id": "6405088",
"author": "Saabman",
"timestamp": "2021-12-08T09:17:44",
"content": "I had airless rubber tyres on my push bike back in the 80’s they were horrid- but slightly better than running on a steel band I guess. And they never got punctures :lol:",
"parent_id": null,
"dep... | 1,760,372,859.815633 | ||
https://hackaday.com/2021/12/07/modern-features-in-classic-radio/ | Modern Features In Classic Radio | Bryan Cockfield | [
"Musical Hacks"
] | [
"antique",
"bitcrusher",
"crt",
"fx-300",
"microcontroller",
"music",
"radio",
"restomod",
"screen",
"sony",
"stereo",
"Teensy",
"tv",
"upgrade"
] | As consumer electronics companies chase profits on tighter and tighter margins, it seems like quality is continually harder to find for most average consumer-grade products. Luckily, we don’t have to hunt through product reviews to find well-built merchandise since we have the benefit of survivorship bias to help us id... | 53 | 9 | [
{
"comment_id": "6405049",
"author": "John",
"timestamp": "2021-12-08T06:30:53",
"content": "Just curious where “restomod” comes from. Never heard the term, and it isn’t immediately obvious to me which parts come from where except for the “-mod” suffix.Also, Twitter hidden in a link, UGH!",
"par... | 1,760,372,859.903409 | ||
https://hackaday.com/2021/12/07/assistive-tech-and-video-games/ | Assistive Tech And Video Games | Orlando Hoilett | [
"Games"
] | [
"ASSISTIVE TECH",
"assistive technology",
"controller",
"sip-and-puff",
"video games"
] | Assistive technologies have a pretty big presence here on Hackaday, and this hack is nothing short of interesting. [kerchoo_22] is working on a
hands-free video game controller as a final project for her engineering class
and we think it’s worth sharing.
The basic premise of the circuit is pretty simple. She
DIY’d a fe... | 6 | 6 | [
{
"comment_id": "6405024",
"author": "John",
"timestamp": "2021-12-08T03:48:14",
"content": "Cushion or no, once you start mashing buttons, you’re going to look like a lunatic dancing to hardcore. A concussion? Maybe not. Whiplash? How could you not?",
"parent_id": null,
"depth": 1,
"rep... | 1,760,372,859.940015 | ||
https://hackaday.com/2021/12/07/complete-hobo-stove-cooking-system-could-get-you-through-the-apocalypse/ | Complete Hobo Stove Cooking System Could Get You Through The Apocalypse | Kristina Panos | [
"Lifehacks",
"Misc Hacks"
] | [
"candle power",
"cans",
"hobo stove",
"rocket stove",
"tealights"
] | Let’s face it, times are hard, and winter is imminent in the northern hemisphere. No matter how much you have to your name, there’s nothing like a cup of hot tea or a warm meal on a cold day. So if you need a snow day activity, consider preparing for whatever may come to pass by building yourself
a complete hobo stove ... | 70 | 15 | [
{
"comment_id": "6404999",
"author": "Rog77",
"timestamp": "2021-12-08T01:17:43",
"content": "I made one one out of a small coffee jar, with a cover of thin soda can with a cross cut hole as a lid; a bit of cotton rag was pulled though the hole in the lid. This sat inside an old baked bean can with ... | 1,760,372,860.087073 | ||
https://hackaday.com/2021/12/07/simple-design-elevates-this-mechanical-dot-matrix-display/ | Simple Design Elevates This Mechanical Dot Matrix Display | Dan Maloney | [
"3d Printer hacks"
] | [
"airsoft",
"display",
"dot matrix"
] | Don’t get us wrong — we love unique displays as much as anyone. But sometimes we stumble across one that’s so unique that we lack the basic vocabulary to describe it. Such is the case with
this marble-raising dot-matrix alphanumeric display
. But it’s pretty cool, so we’ll give it a shot.
The core — literally — of [Shi... | 11 | 8 | [
{
"comment_id": "6404969",
"author": "BadAngel",
"timestamp": "2021-12-07T22:03:16",
"content": "This is marbelous :)Joke apart, it’s a genius idea !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6404976",
"author": "Foldi-One",
"timestamp": "2021-12-... | 1,760,372,859.987691 | ||
https://hackaday.com/2021/12/07/multimeters-go-big-screen/ | Multimeters Go Big Screen | Al Williams | [
"Reviews",
"Tool Hacks"
] | [
"gvda",
"meter",
"multimeter",
"test equipment"
] | We’ve noticed lately that some cheap meters have gone to having big colorful screens. The screens aren’t dot matrix, but still have lots of graphics that could be useful or could be distracting eye candy, depending. The really cheap ones seem more like a gimmick, but [OM0ET]
took a look at one that looked like a fair m... | 54 | 17 | [
{
"comment_id": "6404928",
"author": "Urgon",
"timestamp": "2021-12-07T19:44:43",
"content": "I bought an Aneng AN870 multimeter because it looked good on videos. I expected it to be readable and well-suited for my poor eyesight. Well, it works, sort of, but I need to use a flashlight to read it som... | 1,760,372,860.178708 | ||
https://hackaday.com/2021/12/07/spacing-out-telescopes-politics-and-spacecraft-design/ | Spacing Out: Telescopes, Politics, And Spacecraft Design | Jenny List | [
"Current Events",
"Hackaday Columns",
"Slider",
"Space"
] | [
"Astra",
"jwst",
"rocket engine",
"space",
"spacecraft"
] | Let’s launch into a round-up of stories that are out of this world, as we take a look at what’s happening in the realm of space exploration.
Ten Billion Dollars For A Telescope? Don’t Drop It!
Perhaps the most highly anticipated space mission of the moment is the James Webb Space Telescope, an infra-red telescope that ... | 9 | 4 | [
{
"comment_id": "6404931",
"author": "Gravis",
"timestamp": "2021-12-07T19:52:04",
"content": "The James Webb Paperweight Telescope is the king of teasing delays. I wouldn’t be surprised if the whole rocket just exploded and somehow the data on the last few years of work on it were lost so it just ... | 1,760,372,860.233571 | ||
https://hackaday.com/2021/12/07/retro-reproduction-captures-the-style-of-the-sol-20/ | Retro Reproduction Captures The Style Of The Sol-20 | Dan Maloney | [
"Retrocomputing"
] | [
"8080",
"emulator",
"Py8080",
"raspberry pi",
"retrocomputing",
"Sol-20",
"walnut"
] | In the early years of the computer revolution, a machine like the Sol-20 really stood out. Where most hobbyist machines had front panels that bristled with toggle switches and LEDs, the Sol-20 was a sleek, all-in-one that looked like an electric typewriter in a walnut-trimmed box. Unfortunately, it was also quite expen... | 26 | 9 | [
{
"comment_id": "6404893",
"author": "Michael Black",
"timestamp": "2021-12-07T17:01:51",
"content": "Not many of any computer was sold at that point. Wikipedia says 10,000 were sold, that seems like a decent amount.The Sol was on the cover of Popular Electronics for July 1976 (overlapping the Cosm... | 1,760,372,860.299249 | ||
https://hackaday.com/2021/12/07/microsofts-minimal-mouse-may-maximize-masochism/ | Microsoft’s Minimal Mouse May Maximize Masochism | Kristina Panos | [
"Featured",
"Interest",
"Original Art",
"Peripherals Hacks",
"Rants",
"Slider"
] | [
"ergonomics",
"folding mouse",
"mouse"
] | So it seems that Microsoft has a patent in process for a folding mouse
. It looks a whole lot like their Arc mouse, which is quite thin and already goes from curved to flat. But that’s apparently not good enough for Microsoft, who says mice in general are bulky and cumbersome to travel with. On the bright side, they d... | 53 | 21 | [
{
"comment_id": "6404868",
"author": "Twisty Plastic",
"timestamp": "2021-12-07T15:21:16",
"content": "Yah, nope!If I need something that portable I probably don’t have much if any desk surface to run a mouse on.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id":... | 1,760,372,860.385611 | ||
https://hackaday.com/2021/12/07/bridging-game-worlds-with-the-impossible-pokemon-trade/ | Bridging Game Worlds With The ‘Impossible’ Pokémon Trade | Chris Wilkinson | [
"Nintendo Game Boy Hacks",
"Nintendo Hacks"
] | [
"gameboy",
"Gameboy Advance",
"gba",
"pokemon"
] | Transferring hard-earned Pokémon out of the second generation GameBoy game worlds into the ‘Advance Era’ cartridges (and vice versa) has never been officially supported by Nintendo, however [Goppier] has made these illicit trades slightly easier for budding Pokémon trainers by way of a
custom PCB and a healthy dose of ... | 13 | 8 | [
{
"comment_id": "6404908",
"author": "James",
"timestamp": "2021-12-07T18:27:48",
"content": "First things first, hacked Pokémon have no ability whatsoever to damage save data for anything Gen 3 and beyond! Gen 1 and 2 *can* suffer from issues presented, but at worst something like the Hall of Fame ... | 1,760,372,860.6745 | ||
https://hackaday.com/2021/12/07/cracking-the-spotify-code/ | Cracking The Spotify Code | Matthew Carlson | [
"Software Hacks"
] | [
"convolution",
"crc",
"image processing",
"spotify"
] | If you’ve used Spotify, you might have noticed a handy little code that it can generate that looks like a series of bars of different heights. If you’re like [Peter Boone], such an encoding will pique your curiosity, and
you might set out to figure out how they work
.
Spotify offers a little picture that, when scanned,... | 4 | 4 | [
{
"comment_id": "6404832",
"author": "RetepV",
"timestamp": "2021-12-07T11:14:57",
"content": "I love that article!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6404834",
"author": "IIVQ",
"timestamp": "2021-12-07T11:27:20",
"content": "Thanks! I... | 1,760,372,860.794195 | ||
https://hackaday.com/2021/12/06/adding-optical-audio-to-the-raspberry-pi-with-one-chip/ | Adding Optical Audio To The Raspberry Pi With One Chip | Tom Nardi | [
"home entertainment hacks",
"Raspberry Pi"
] | [
"I2S",
"optical audio",
"s/pdif",
"toslink"
] | In the home theater space most people would tell you the age of optical audio, known officially as TOSLINK, is over. While at one time they were the standard for surround sound systems, the fiber cables with their glowing red tips have now been largely supplanted by the all-in-one capabilities of HDMI on new TVs and au... | 32 | 10 | [
{
"comment_id": "6404786",
"author": "Bruce Perens K6BP",
"timestamp": "2021-12-07T06:34:37",
"content": "For hams, who like to keep extraneous RF down, and for locations where lightning is a problem, having an optical link that is something like USB is actually very attractive.",
"parent_id": n... | 1,760,372,860.748182 | ||
https://hackaday.com/2021/12/06/my-major-is-gaming/ | My Major Is Gaming… | Al Williams | [
"Games",
"Software Development"
] | [
"game programming",
"university",
"video games"
] | Times have changed. You can now take a university class in writing games. In fact, YOU can now take a university class about writing games because [Dave Churchill] of Memorial University has put
all 22 of his lectures
up for your enjoyment. [
Dr. Churchill
] isn’t planning on releasing the assignment files, but you can... | 12 | 8 | [
{
"comment_id": "6404846",
"author": "Corry",
"timestamp": "2021-12-07T12:08:48",
"content": "Dr Ian Parberry was doing this in 1999 at the University of North Texas….only CS professor worth anything during my time there. and the physics class there was utterly useless. (So I retook it elsewhere)... | 1,760,372,860.630374 | ||
https://hackaday.com/2021/12/06/guitar-pickguard-adds-midi-capabilities/ | Guitar Pickguard Adds MIDI Capabilities | Bryan Cockfield | [
"Musical Hacks"
] | [
"32u4",
"Adafruit Feather",
"capacitive",
"guitar",
"live",
"microcontroller",
"midi",
"music",
"performance",
"pick guard",
"touch",
"wires"
] | For a standard that has been in use since the 1980s, MIDI is still one of the most dominant forces on the musical scene even today. It’s fast, flexible, and offers a standard recognized industry-wide over many different types of electronic instruments. Even things which aren’t instruments can be turned into musical dev... | 1 | 1 | [
{
"comment_id": "6404883",
"author": "Derek",
"timestamp": "2021-12-07T16:03:29",
"content": "“For a standard that has been in use since the 1980s” wait until you hear about gcode",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,372,860.831927 | ||
https://hackaday.com/2021/12/06/cardboard-vs-laser-shootout-a-tale-of-speed-and-power-settings/ | Cardboard Vs. Laser Shootout: A Tale Of Speed And Power Settings | Kristina Panos | [
"Laser Hacks"
] | [
"cardboard",
"chip board",
"friggin laser beams",
"laser analysis"
] | You probably already know that cardboard is versatile, but that goes far beyond the corrugated stuff. There are many types of cardboard out there, some of which you may not even be aware of. In the video after the break, [Eric Strebel]
goes through them all and pits each one against his 50 W water-cooled laser
with air... | 4 | 2 | [
{
"comment_id": "6404732",
"author": "PWalsh",
"timestamp": "2021-12-06T22:52:05",
"content": "Making power/speed cheat sheets for your laser is something everyone should do, for all the common materials you use.Start by tuning your laser, making certain that all of the beam is incident on the lens ... | 1,760,372,860.932543 | ||
https://hackaday.com/2021/12/06/classic-colorimeter-clone-calibrates-cuvettes-contents/ | Classic Colorimeter Clone Calibrates Cuvettes’ Contents | Robin Kearey | [
"chemistry hacks"
] | [
"analytical chemistry",
"colorimeter",
"cuvettes"
] | For anyone dabbling in home chemistry, having access to accurate measurement equipment can mean the difference between success and failure. But with many instruments expensive and hard to find, what’s a home chemist to do? Build their own equipment, naturally. [Abizar] went ahead and
built himself a colorimeter
out of ... | 13 | 4 | [
{
"comment_id": "6404703",
"author": "John",
"timestamp": "2021-12-06T21:20:08",
"content": "Some sanding and some spray paint could have made it look much nicer, but it’s a great design. I wonder if those color sensors that adafruit has are sensitive enough to do this with digital output..",
"p... | 1,760,372,860.886225 | ||
https://hackaday.com/2021/12/06/big-wind-is-the-meanest-firefighting-tank-you-ever-saw/ | Big Wind Is The Meanest Firefighting Tank You Ever Saw | Lewin Day | [
"Engineering",
"Hackaday Columns",
"Misc Hacks",
"Slider"
] | [
"big wind",
"fire",
"fire fighting",
"oil",
"oil fire",
"oil well"
] | As the Iraqi army retreated at the end of the first Gulf War, they took the term “scorched Earth policy” quite literally. Kuwaiti oil wells were set alight en masse, creating towering infernos that blackened the sky.
As it turns out, extinguishing a burning oil well is no easy feat. In the face of this environmental di... | 79 | 18 | [
{
"comment_id": "6404654",
"author": "SPD",
"timestamp": "2021-12-06T18:58:11",
"content": "Thats got to cost some money for all that water? 220gal a second ouf.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6404659",
"author": "KVG",
"times... | 1,760,372,861.05463 | ||
https://hackaday.com/2021/12/06/touchscreen-powered-usb-hub-selectively-powers-down-devices/ | Touchscreen-Powered USB Hub Selectively Powers Down Devices | Robin Kearey | [
"Peripherals Hacks"
] | [
"power switching",
"raspberry pi",
"touchscreen",
"USB hub"
] | One of the most useful features of the Universal Serial Bus is its hot-plugging capability. You simply plug in your device, use it, and unplug it when you’re done. But what if you’ve got a huge number of USB devices? You might not want to use all of them all of the time, but repeatedly unplugging and re-plugging them i... | 12 | 4 | [
{
"comment_id": "6404614",
"author": "Mike",
"timestamp": "2021-12-06T17:15:03",
"content": "But why? you can buy a 10 or 20 port USB hub with switches for each port for cheap on amazon.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6404624",
"autho... | 1,760,372,861.106292 | ||
https://hackaday.com/2021/12/06/ttl-and-cmos-logic-ics-the-building-blocks-of-a-revolution/ | TTL And CMOS Logic ICs: The Building Blocks Of A Revolution | Maya Posch | [
"Featured",
"History",
"Original Art",
"Slider"
] | [
"iron curtain",
"logic ICs",
"micrologic"
] | When starting a new electronics project today, one of the first things that we tend to do is pick the integrated circuits that make up the core of the design. This can be anything from a microcontroller and various controller ICs to a sprinkling of MOSFETs, opamps, and possibly some 7400- or 4000-series
logic ICs
to ti... | 33 | 15 | [
{
"comment_id": "6404586",
"author": "Peter_s",
"timestamp": "2021-12-06T16:12:31",
"content": "PLEASE.Do use the right words.It was the German Democratic Republic. (1949-1990)None of the devaluating ahtefull dumb speach.No East Germany,no soviet satellite or what so ever.Thanks",
"parent_id": n... | 1,760,372,861.177801 | ||
https://hackaday.com/2021/12/06/secret-ingredient-for-3d-printed-circuit-traces-electroplating/ | Secret Ingredient For 3D-Printed Circuit Traces: Electroplating | Donald Papp | [
"3d Printer hacks",
"chemistry hacks"
] | [
"3d printed",
"3d-printed pcb",
"conductive filament",
"electroplating",
"pcb"
] | Conductive filament exists, but it takes more than that to 3D print something like a circuit board. The main issue is that traces made from conductive filament are basically resistors; they don’t act like wires. [hobochild]’s interesting way around this problem is to
use electroplating to coat 3D-printed traces with me... | 46 | 16 | [
{
"comment_id": "6404532",
"author": "hobochild",
"timestamp": "2021-12-06T12:26:50",
"content": "For those that are interested in the process, I wrote a bit more about it here:https://projectquine.substack.com/p/the-printn-plate-seriesand will try continue to document things as I improve things.",
... | 1,760,372,861.328422 |
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