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https://hackaday.com/2021/07/25/parts-shortage-forces-creativity-for-this-recursive-clock-of-clocks/ | Parts Shortage Forces Creativity For This Recursive Clock Of Clocks | Dan Maloney | [
"clock hacks"
] | [
"analog",
"clock",
"digital",
"light pipe",
"meta",
"metaclock",
"neopixel"
] | We’ve been seeing a lot of metaclocks lately — a digital clock whose display is formed by the sweeping hands of an array of individual analog clocks. They can look fantastic, and we’ve certainly seen some great examples.
But in this time of supply pinches, it’s not always possible to gather the parts one needs for a fu... | 9 | 6 | [
{
"comment_id": "6367190",
"author": "Null Void",
"timestamp": "2021-07-26T03:10:09",
"content": "I just want to know what the bloody time is",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6367225",
"author": "zosh",
"timestamp": "2021-07-26T08:42:51",... | 1,760,373,006.703863 | ||
https://hackaday.com/2021/07/25/hackaday-links-july-25-2021/ | Hackaday Links: July 25, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"ChromeOS",
"classified",
"free fall",
"google",
"hackaday links",
"main battle tank",
"parabola",
"pinball",
"typo",
"video game",
"vomit comet",
"weightlessness",
"zero g"
] | Everyone makes mistakes in their job, but very few of us get the chance to make
a one-character mistake with the potential to brick millions of devices
. But that’s what happened to a hapless Google developer, who made an understandable typo in the ChromeOS code that ended up making it all the way to production. The er... | 10 | 7 | [
{
"comment_id": "6367157",
"author": "Ostracus",
"timestamp": "2021-07-25T23:06:47",
"content": "“What’s more, like any good Netizen, the player cited sources to back up the claims, including excerpts from the official Challenger 2 instruction manual.”Someone should have known better.” But it appear... | 1,760,373,006.988406 | ||
https://hackaday.com/2021/07/25/portable-gps-time-server-powered-by-the-esp8266/ | Portable GPS Time Server Powered By The ESP8266 | Tom Nardi | [
"clock hacks",
"Microcontrollers"
] | [
"ESP8266",
"gps",
"GPS clock",
"network time protocol",
"ntp",
"NTP server"
] | Most Hackaday readers will be familiar with the idea of a network time server; a magical box nestled away in some distant data center that runs the Network Time Protocol (NTP) and allows us to conveniently synchronize the clocks in our computers and gadgets. Particularly eager clock watchers can actually rig up their o... | 31 | 11 | [
{
"comment_id": "6367130",
"author": "Tom Brusehaver",
"timestamp": "2021-07-25T20:10:34",
"content": "This is my MQTT equivalent. More compact.http://enginemonitor.blogspot.com/2020/09/gps-module.html?m=1",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "63671... | 1,760,373,007.073614 | ||
https://hackaday.com/2021/07/25/why-make-coffee-when-youre-tired-let-a-robot-do-it-for-you/ | Why Make Coffee When You’re Tired? Let A Robot Do It For You | Kristina Panos | [
"Lifehacks",
"Robots Hacks",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"arduino",
"arduino nano",
"coffee",
"ESP32",
"pour over",
"robot"
] | Like us, [Alberto] doesn’t compromise when it comes to a good cup of coffee. We figure that if he went to an office in the Before Times, he was the type of coworker to bring in their own coffee equipment so as not to suffer the office brew. Or perhaps he volunteered to order the office supplies and therefore got to dec... | 9 | 6 | [
{
"comment_id": "6367121",
"author": "echodelta",
"timestamp": "2021-07-25T19:02:14",
"content": "I found a Black and Decker Home Cafe pod maker at the curb. I’d never use pods, fresh ground only. I took off some of the plastic under the pod part so I could get a Melita cone and a big cup under the ... | 1,760,373,006.486951 | ||
https://hackaday.com/2021/07/24/avoid-awkward-video-conference-situations-with-pir-and-arduino/ | Avoid Awkward Video Conference Situations With PIR And Arduino | Danie Conradie | [
"laptops hacks",
"The Hackaday Prize",
"Video Hacks"
] | [
"2021 Hackaday Prize",
"PIR sensor",
"video conferencing",
"working from home",
"zoom"
] | Working from home with regular video meetings has its challenges, especially if you add kids to the mix. To help avoid embarrassing situations, [Charitha Jayaweera] created
Present!
, a USB device to automatically turn of your camera and microphone if you suddenly need to leave your
computer
to maintain domestic order.... | 10 | 6 | [
{
"comment_id": "6366974",
"author": "jack324",
"timestamp": "2021-07-24T18:08:34",
"content": "This feels like it has a higher chance of failing to shut off the cam/mic than just setting a hot key on your keyboard and training yourself to hit that key when you walk away. Also feels way too complica... | 1,760,373,007.116581 | ||
https://hackaday.com/2021/07/24/learning-to-desolder-gracefully/ | Learning To Desolder Gracefully | Elliot Williams | [
"Hackaday Columns",
"Rants",
"Slider"
] | [
"desoldering",
"mistakes",
"newsletter",
"soldering",
"teaching",
"undo"
] | When you’re just learning to sketch, you use graphite. Why? It’s cheap, great at training you to recognize different shades, and most of all, it’s erasable. When you’re learning, you’re going to make mistakes, and un-making them is an important part of the game. Same goes for electronics, of course, so when you’re teac... | 45 | 14 | [
{
"comment_id": "6366936",
"author": "Paul",
"timestamp": "2021-07-24T14:26:36",
"content": "Just going to leave this bit of genius here:https://hackaday.com/2017/04/03/have-you-ever-tried-desoldering-needles/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6... | 1,760,373,006.941345 | ||
https://hackaday.com/2021/07/24/esp8266-adds-wifi-logging-to-ikeas-air-quality-sensor/ | ESP8266 Adds WiFi Logging To IKEA’s Air Quality Sensor | Tom Nardi | [
"home hacks",
"Microcontrollers"
] | [
"air quality",
"custom firmware",
"ESP8266",
"ikea",
"particulates",
"sensor"
] | Introduced back in June, the IKEA VINDRIKTNING is a $12 USD sensor that uses colored LEDs to indicate the relative air quality in your home depending on how many particles it sucks up. Looking to improve on this simplistic interface,
[Sören Beye] tacked an ESP8266 to the board so it can broadcast sensor readings out ov... | 38 | 12 | [
{
"comment_id": "6366914",
"author": "icb",
"timestamp": "2021-07-24T11:56:10",
"content": "The fan speed change is part of the sensor’s cleaning cycle. Disabling it is going to eventually cause the it to fail, or at least provide inaccurate readings as dust builds up inside.",
"parent_id": null... | 1,760,373,006.571117 | ||
https://hackaday.com/2021/07/24/how-the-flipper-zero-hacker-multitool-gets-made-and-tested/ | How The Flipper Zero Hacker Multitool Gets Made And Tested | Donald Papp | [
"Crowd Funding",
"hardware",
"Wireless Hacks"
] | [
"crowdfunded",
"flipper zero",
"multitool",
"pogo pins",
"production",
"Test jig",
"testing"
] | Flipper Zero
is an open-source multitool for hackers, and [Pavel] recently shared
details on what goes into the production and testing of these devices
. Each unit contains four separate PCBs, and in high-volume production it is inevitable that some boards are faulty in some way. Not all faults are identical — some are... | 3 | 2 | [
{
"comment_id": "6366896",
"author": "Nath",
"timestamp": "2021-07-24T08:18:35",
"content": "I can’t wait to receive mine !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6366911",
"author": "Andrew",
"timestamp": "2021-07-24T10:47:22",
"content": ... | 1,760,373,006.612203 | ||
https://hackaday.com/2021/07/23/joker-monitor-keeps-an-eye-on-hazardous-gas-levels/ | Joker Monitor Keeps An Eye On Hazardous Gas Levels | Lewin Day | [
"Misc Hacks"
] | [
"badgelife",
"gas",
"gas sensor"
] | The Joker is a popular character in the
Batman
franchise, and at times uses poisonous gases as part of his criminal repertoire. That inspired this fun project by [kutluhan_aktar],
which aims to monitor the level of harmful gases in the air.
The project doesn’t use just one gas sensor, but several! It packs the MQ-2, MQ... | 12 | 4 | [
{
"comment_id": "6366887",
"author": "LPGHater",
"timestamp": "2021-07-24T06:35:29",
"content": "I love the artistry and I appreciate the effort, but honestly are any of these poisonous gases a concern in your life?MQ-2 Smoke Gas LPG Butane Hydrogen Gas Sensor Detector Module For ArduinoMQ-3 Alcohol... | 1,760,373,006.66224 | ||
https://hackaday.com/2021/07/23/pnpassist-a-smart-build-platform-for-manual-pcb-assembly/ | PnPAssist: A “Smart” Build Platform For Manual PCB Assembly | Danie Conradie | [
"The Hackaday Prize",
"Tool Hacks"
] | [
"2021 Hackaday Prize",
"pcb assembly",
"pick and place",
"smd components"
] | Open source pick and place machines have come a long way in the past years, but are not necessarily worth the setup time and machine cost if you are only building a few PCBs at a time. [Nuri Erginer] found himself in this situation regularly, so he created
PnPAssist
, a “smart” build platform to speed up manual PCB ass... | 16 | 13 | [
{
"comment_id": "6366863",
"author": "Qt",
"timestamp": "2021-07-24T02:25:04",
"content": "Brilliant",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6366875",
"author": "ConductiveInsulation",
"timestamp": "2021-07-24T04:34:45",
"content": "Whoa, th... | 1,760,373,006.857362 | ||
https://hackaday.com/2021/07/23/a-nerf-ball-turret-complete-with-fpv/ | A Nerf Ball Turret Complete With FPV | Lewin Day | [
"Misc Hacks"
] | [
"nerf",
"nerf blaster",
"sentry gun"
] | Sentry turrets have long been a feature of science fiction films and video games. These days, there’s nothing stopping you from building your own. [otjones99] has done just that,
with his FPV Nerf Ball launcher.
The system works on the basic principle of launching soft foam balls via a pair of counter-rotating wheels. ... | 2 | 1 | [
{
"comment_id": "6367333",
"author": "Koit Kulper",
"timestamp": "2021-07-26T18:24:16",
"content": "13km-m is quite different torque than 13kg-cm.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6380353",
"author": "Shafae",
"timestamp": "2021... | 1,760,373,007.157811 | ||
https://hackaday.com/2021/07/26/if-society-is-in-danger-of-collapse-heres-how-we-should-do-our-bit/ | If Society Is In Danger Of Collapse, Here’s How We Should Do Our Bit | Jenny List | [
"green hacks"
] | [
"climate change",
"society",
"sustainability"
] | If you’ve been following the news, you can’t have missed the series of floods, droughts, and wildfires that have occurred seemingly in all corners of the world. Coming on the heels of a Northern Hemisphere winter that had its own extreme weather events, it would be perhaps foolhardy not to by now take climate change se... | 107 | 27 | [
{
"comment_id": "6367423",
"author": "Michael Black",
"timestamp": "2021-07-27T02:14:12",
"content": "I’m begining to suspect I won’t live to 70. But if there was this imaginary collapse, I wouldn’t last long, and I just have to stop taking an expensive drug, and my.life will be terminal.It was so... | 1,760,373,007.687765 | ||
https://hackaday.com/2021/07/26/building-an-electronic-tester-for-measuring-arrow-stiffness/ | Building An Electronic Tester For Measuring Arrow Stiffness | Lewin Day | [
"Misc Hacks"
] | [
"archery",
"arrow",
"load cell"
] | When shooting archery, if you want to be accurate, you need arrows of uniform specification and quality. One important part of this is making sure each arrow has a spine of similar stiffness. Traditionally, this is checked in a very analog way by using weights and measuring deflection of the arrow spine, but it can be ... | 1 | 1 | [
{
"comment_id": "6367568",
"author": "dyrge",
"timestamp": "2021-07-27T12:48:15",
"content": "That looks pretty useful. I might have to build one myself.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,373,007.421283 | ||
https://hackaday.com/2021/07/26/wifiwart-boots-linux-moves-to-next-design-phase/ | WiFiWart Boots Linux, Moves To Next Design Phase | Tom Nardi | [
"hardware",
"Linux Hacks"
] | [
"Embedded Linux",
"open hardware",
"oshw",
"pentesting",
"SBC",
"u-boot",
"WiFiWart"
] | Over the last few months we’ve been keeping an eye on WiFiWart, an ambitious project to develop a Linux single-board computer (SBC) small enough to fit inside a USB wall charger. Developer [Walker] says the goal is to create an easily concealable “drop box” for penetration testing, giving security researchers a valuabl... | 12 | 4 | [
{
"comment_id": "6367387",
"author": "dmitry Grinberg",
"timestamp": "2021-07-26T20:49:47",
"content": "We’ve already hadhttps://en.wikipedia.org/wiki/Picotuxfor size, and Sheevaplug for size+wifibut cool to get another",
"parent_id": null,
"depth": 1,
"replies": [
{
"comme... | 1,760,373,007.475228 | ||
https://hackaday.com/2021/07/26/little-quadruped-uses-many-servos/ | Little Quadruped Uses Many Servos | Lewin Day | [
"Robots Hacks"
] | [
"arduino",
"quadruped",
"robot"
] | Walking robots were once the purview of major corporations spending huge dollars on research programs. Now, they’re something you can experiment with at home.
[Technovation] has been doing just that with his micro quadruped build.
The build runs twelve servos – three per leg – to enable for a great range of movement fo... | 12 | 4 | [
{
"comment_id": "6367341",
"author": "Andrew",
"timestamp": "2021-07-26T18:43:41",
"content": "Wonderful design.Tragic that servos are still so terrible.The whole 3D printing revolution happened because steppers and drives became simple, high-featured, cheap, pervasive.Boosted Boards happened becaus... | 1,760,373,007.735847 | ||
https://hackaday.com/2021/07/26/linux-fu-superpowers-for-mere-mortals/ | Linux Fu: Superpowers For Mere Mortals | Al Williams | [
"Hackaday Columns",
"Linux Hacks",
"Slider"
] | [
"linux",
"root",
"su",
"sudo",
"sudoers",
"super user",
"visudo"
] | You can hardly mention the
sudo
command without recalling the hilarious XKCD strip about making sandwiches. It does seem like
sudo
is the magic power to make a Linux system do what you want. The only problem is that those superpowers are not something to be taken lightly.
CC-BY-NC-2.5
by [XKCD]
If you are surfing the w... | 27 | 11 | [
{
"comment_id": "6367324",
"author": "rclark",
"timestamp": "2021-07-26T17:14:39",
"content": "As a ‘single user’ home system, I don’t find much, if any, use for sudo. It seems much easier for me to just ‘su -‘ and do the work I need and then exit back to user space when done. I don’t mind entering... | 1,760,373,007.547485 | ||
https://hackaday.com/2021/07/26/how-to-build-with-acrylic-using-the-tools-you-have/ | How To Build With Acrylic Using The Tools You Have | Tom Nardi | [
"how-to",
"Tool Hacks"
] | [
"acrylic",
"bending acrylic",
"cutting",
"eric strebel",
"hand tools",
"tools"
] | In a perfect world, we’d all have laser cutters and could pop intricate designs out of acrylic sheets with just a few clicks of the mouse. But in reality, most of us have to make do with the pedestrian tools we have at hand. For many, that might even mean everything has to be done by hand. Luckily, [Eric Strebel] has b... | 8 | 3 | [
{
"comment_id": "6367291",
"author": "Vib",
"timestamp": "2021-07-26T15:11:49",
"content": "The “water-like” solvent used for welding acrylic is very nasty. That should be emphasized, if find the “water-like” qualification pretty dangerous",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,008.043644 | ||
https://hackaday.com/2021/07/26/rna-therapeutics-and-fighting-diseases-by-working-with-the-immune-system/ | RNA Therapeutics And Fighting Diseases By Working With The Immune System | Maya Posch | [
"Engineering",
"Featured",
"Medical Hacks",
"Original Art",
"Science",
"Slider"
] | [
"mRNA",
"mRNA vaccine",
"RNA therapeutics"
] | Before the SARS-CoV-2 pandemic took hold, few people were aware of the existence of mRNA vaccines. Yet after months of vaccinations from Moderna and BioNTech and
clear indications
of robust protection to millions of people, it now seems hard to imagine a world without mRNA vaccine technology, especially as more traditi... | 75 | 21 | [
{
"comment_id": "6367277",
"author": "midori oshii",
"timestamp": "2021-07-26T14:19:59",
"content": "I very much appreciate such a concise summation of mRNA delivery of synthetic spike protein therapy, and in an ideal world it is a technology that would work as advertised. Unfortunately there are p... | 1,760,373,008.16281 | ||
https://hackaday.com/2021/07/25/automatic-coil-winder-gets-it-done-with-simple-hardware-and-software/ | Automatic Coil Winder Gets It Done With Simple Hardware And Software | Dan Maloney | [
"cnc hacks"
] | [
"cnc",
"coil",
"g-code",
"grbl",
"magnet wire",
"PVC",
"winding"
] | We’ve grown to expect seeing mechatronics project incorporate a standard complement of components, things like stepper motors, Arduinos, lead screws, timing belts and pulleys, and aluminum extrusions. So when a project comes along that breaks that mold, even just a little, we sit up and take notice.
Departing somewhat ... | 11 | 5 | [
{
"comment_id": "6367099",
"author": "SPD",
"timestamp": "2021-07-25T15:00:42",
"content": "Is it just me or does this youtube channel have no subscibers at all not even 1?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6367101",
"author": "Ostracus"... | 1,760,373,007.782409 | ||
https://hackaday.com/2021/07/25/quiet-wings-with-shape-memory-alloy/ | Quiet Wings, With Shape Memory Alloy | Al Williams | [
"drone hacks"
] | [
"aircraft",
"shape memory alloy",
"wing"
] | It’s a fact of operating an aircraft, that the make noise. If you’re an aviator you might want to quiet your craft to avoid annoying people nearby, or you might even want to operate in stealth mode. It turns out that there are different sources of noise on a plane depending upon the phase of flight. A NASA study found ... | 12 | 6 | [
{
"comment_id": "6367070",
"author": "Smk",
"timestamp": "2021-07-25T11:03:48",
"content": "I came here for obligatory Macross reference.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6367073",
"author": "David Beck",
"timestamp": "2021-07-25T11:43:05... | 1,760,373,007.826587 | ||
https://hackaday.com/2021/07/25/dominate-video-calls-with-game-boy-camera-webcam/ | Dominate Video Calls With Game Boy Camera Webcam | Tom Nardi | [
"digital cameras hacks",
"Nintendo Game Boy Hacks"
] | [
"game boy camera",
"HDMI capture device",
"retro gaming",
"snes",
"super game boy",
"webcam"
] | We can’t promise it will all be positive, but there’s no question you’ll be getting plenty of attention
when you join a video call using the Game Boy Camera
. Assuming they recognize you, anyway. The resolution and video quality of the 1998 toy certainly hasn’t aged very well, and that’s before it gets compressed and s... | 12 | 5 | [
{
"comment_id": "6367048",
"author": "Nath",
"timestamp": "2021-07-25T08:11:49",
"content": "I actually have all the hardware needed but never though of using it this way (to troll my colleagues); nice hack!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "636... | 1,760,373,007.881287 | ||
https://hackaday.com/2021/07/24/simple-tip-helps-with-powder-coating-perfection-on-difficult-parts/ | Simple Tip Helps With Powder Coating Perfection On Difficult Parts | Dan Maloney | [
"Misc Hacks",
"News"
] | [
"coating",
"electrostatic",
"fabrication",
"finishing",
"hot flocking",
"paint",
"powder coating"
] | To say that that the commercially available garden path lights commonly available at dollar stores are cheap is a vast overstatement of their true worthlessness. These solar-powered lights are so cheaply built that there’s almost no point in buying them, a fact that led [Mark Presling] down a fabrication rabbit hole th... | 8 | 3 | [
{
"comment_id": "6367040",
"author": "Ostracus",
"timestamp": "2021-07-25T06:05:36",
"content": "Powder coating is one. Dipping is another.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6367047",
"author": "ian 42",
"timestamp": "2021-07-25T07:46:07",... | 1,760,373,008.206798 | ||
https://hackaday.com/2021/07/24/solder-bridges-aid-desoldering/ | Solder Bridges Aid Desoldering | Al Williams | [
"Tool Hacks"
] | [
"desoldering",
"solder",
"soldering",
"through hole"
] | As our
own Elliot Williams laid out
, many people think that soldering is a key skill for electronics, but we don’t as often think about desoldering. Even if you are perfect in your technique, there’s always the chance you’ll put in a bad part or have a part fail later and it will need replacement. [Robert] has a short... | 24 | 9 | [
{
"comment_id": "6367026",
"author": "pac",
"timestamp": "2021-07-25T02:48:13",
"content": "Amtech fluxes and Gootwick. Accept no substitutes.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6367088",
"author": "MattAtHazmat",
"timestamp": "20... | 1,760,373,008.378755 | ||
https://hackaday.com/2021/07/24/monowheel-balancing-robot-cant-turn-yet/ | Monowheel Balancing Robot Can’t Turn (Yet) | Danie Conradie | [
"Robots Hacks"
] | [
"balancing robot",
"gyroscopic",
"james bruton",
"monowheel"
] | Self-balancing robots have become a common hobby project, and they usually require two wheels to work. [James Bruton] has managed to
single wheel balancing robot
by adding gyroscopic stabilization.
[James] has done other self-balancing robots, like his
Sonic robot
, but recently started experimenting with
gyroscopic st... | 21 | 7 | [
{
"comment_id": "6367013",
"author": "Ostracus",
"timestamp": "2021-07-25T00:28:03",
"content": "Hop and turn?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6367014",
"author": "Tim",
"timestamp": "2021-07-25T01:07:50",
"content": "What about a ca... | 1,760,373,008.260607 | ||
https://hackaday.com/2021/07/24/walk-the-first-3d-printed-bridge-and-be-counted/ | Walk The First 3D-Printed Bridge And Be Counted | Kristina Panos | [
"3d Printer hacks",
"News"
] | [
"3D printed bridge",
"Amsterdam",
"bridge",
"welding"
] | Way back in 2018, we brought you news of a 3D-printed stainless steel pedestrian bridge being planned to span a Dutch canal in Amsterdam.
Now it’s finally in place and open to the public
— the Queen made it official and everything. MX3D printed it on their
M1 Metal additive manufacturing machine
that is essentially a g... | 22 | 14 | [
{
"comment_id": "6366988",
"author": "[skaarj]",
"timestamp": "2021-07-24T20:27:57",
"content": "You forgot to mention that bridge opens a new pedestrian path to Amsterdam’s famous Red Light District. It will count people who go there, the people who come back and also measure different…. parameters... | 1,760,373,008.318407 | ||
https://hackaday.com/2021/07/23/arm-researchers-announce-the-plasticarm/ | Arm Researchers Announce The PlasticArm | Chris Lott | [
"ARM",
"News"
] | [
"arm",
"ARM M0+",
"flexible",
"flexible circuits"
] | If the Cortex family of embedded microprocessors aren’t flexible enough for your designs,
an article published this week
(
click here for the PDF version
) in the journal Nature might be of interest. We’re not talking flexibility in terms of features, but real, physical flexibility of the microprocessor itself. A resea... | 19 | 8 | [
{
"comment_id": "6366796",
"author": "RF_GUY",
"timestamp": "2021-07-23T20:18:32",
"content": "It could go into clothes, wearables to gather biometrics. A workout shirt that measures sweat and total bloodflow for example and reports data to a phone/FitBit.",
"parent_id": null,
"depth": 1,
... | 1,760,373,008.435376 | ||
https://hackaday.com/2021/07/23/new-privacy-policy-gets-audacity-back-on-track/ | New Privacy Policy Gets Audacity Back On Track | Tom Nardi | [
"News",
"Software Development"
] | [
"audacity",
"privacy",
"privacy policy",
"telemetry"
] | Regular readers will likely be aware of the considerable debate over changes being made to the free and open source audio editor Audacity by the project’s new owners, Muse Group. The company says their goal is to modernize the 20 year old GPLv2 program and bring it to a larger audience, but many in the community have q... | 29 | 19 | [
{
"comment_id": "6366767",
"author": "kota//Kæt - Channel Nyan Mews ⏺ (@dakotathekat)",
"timestamp": "2021-07-23T18:35:00",
"content": "That’s great, what about them threatening someone with deportation?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6366781... | 1,760,373,008.550268 | ||
https://hackaday.com/2021/07/23/are-hackers-being-let-down-in-education/ | Are Hackers Being Let Down In Education? | Jenny List | [
"Musical Hacks",
"Rants"
] | [
"education",
"learning",
"music",
"teaching"
] | In my work for Hackaday over the years I have been privileged to interact with some of the most creative people I have ever met, I have travelled far more than I ever did when I toiled unseen in an office in Oxford, and I have been lucky enough to hang out in our community’s spaces, camps, and dives across Europe.
Amon... | 62 | 27 | [
{
"comment_id": "6366755",
"author": "BT",
"timestamp": "2021-07-23T17:20:48",
"content": "My own musical non-education is very similar, but in addition I realised at about age 30 that other people could hear something in music that I could not: the beat, unless it is a thumping great obvious one. I... | 1,760,373,008.664149 | ||
https://hackaday.com/2021/07/23/hackaday-podcast-128-3d-printing-injection-molds-squiggly-audio-tape-curvy-mirrors-and-space-cadets/ | Hackaday Podcast 128: 3D-Printing Injection Molds, Squiggly Audio Tape, Curvy Mirrors, And Space Cadets | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | Hackaday editors Elliot Williams and Mike Szczys bubble sort the best hardware hacks so you don’t miss ’em. This week we’re smitten by the perfection of a telephone tape loop message announcer. We enjoyed seeing Blender’s ray tracing to design mirrors, and a webcam and computer monitor to stand in for triple-projector-... | 0 | 0 | [] | 1,760,373,008.481496 | ||
https://hackaday.com/2021/07/23/3d-printed-roller-coaster-looks-pretty-darn-fun/ | 3D Printed Roller Coaster Looks Pretty Darn Fun | Lewin Day | [
"3d Printer hacks"
] | [
"roller coaster",
"rollercoaster"
] | Rollercoasters are great fun if you can deal with the exhilaration without throwing up or otherwise screaming until you pass out. Of course, the big outdoors ones are a little hard to get to at the moment, what with a pandemic raging outside. However,
[3d_coasters] has built a tabletop design
that, while it’s too small... | 10 | 8 | [
{
"comment_id": "6366735",
"author": "Doug Leppard",
"timestamp": "2021-07-23T15:10:03",
"content": "Amazing",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6366736",
"author": "ScriptGiddy",
"timestamp": "2021-07-23T15:13:48",
"content": "Bravo. Su... | 1,760,373,008.750011 | ||
https://hackaday.com/2021/07/23/this-week-in-security-nso-print-spooler-and-a-mysterious-decryptor/ | This Week In Security: NSO, Print Spooler, And A Mysterious Decryptor | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"0-day",
"PrintNightmare",
"ransomware",
"This Week in Security"
] | The NSO Group has been in the news again recently, with multiple stories reporting on their Pegasus spyware product. The research and reporting spearheaded by Amnesty International is collectively known as “The Pegasus project”.
This project made waves on the 18th
, when multiple news outlets reported on a list of 50,0... | 22 | 9 | [
{
"comment_id": "6366718",
"author": "Iván Stepaniuk",
"timestamp": "2021-07-23T14:05:48",
"content": "FACES, just as fingerprints, are OK usernames, but they are terrible passwords. It’s not that difficult to understand.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comme... | 1,760,373,008.810737 | ||
https://hackaday.com/2021/07/23/lego-pole-climbers-are-great-study-in-what-it-takes-to-go-vertically-upwards/ | LEGO Pole Climbers Are Great Study In What It Takes To Go Vertically Upwards | Lewin Day | [
"Misc Hacks"
] | [
"lego"
] | Climbing a pole with a robot might sound complicated and hard, but it doesn’t have to be.
This video from [Brick Experiment Channel] demonstrates multiple methods of doing the job while keeping things simple from a mechanical perspective.
(Video, embedded below.)
The first method uses a gravity locking design, where th... | 3 | 2 | [
{
"comment_id": "6366702",
"author": "Wheels17",
"timestamp": "2021-07-23T11:17:32",
"content": "If you want to see a lot of different pole climber designs, look at the videos for First Robotics Competition for 2011, The final step in the competition was to deploy a pole climber that hits a limit ... | 1,760,373,008.707048 | ||
https://hackaday.com/2021/07/23/tardygrade-walker-is-a-lesson-in-3d-printed-design/ | Tardygrade Walker Is A Lesson In 3D Printed Design | Danie Conradie | [
"Robots Hacks"
] | [
"3d printed",
"ESP32",
"servos",
"walking robot"
] | The ability to quickly create complex parts with 3D printers has created a platform to show off mechanical design skills. This is true in the case of [Dejan Ristic]’s capable little
Tardygrade walking robot
, which uses only two servos and a bunch of clever 3D printed parts.
The robot’s chassis is split into two subass... | 12 | 6 | [
{
"comment_id": "6366694",
"author": "Gregg Eshelman",
"timestamp": "2021-07-23T09:51:50",
"content": "When is someone going to build a real Marvelous Toy?https://www.youtube.com/watch?v=XLYefZkOMB0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6366711",
... | 1,760,373,008.942105 | ||
https://hackaday.com/2021/07/22/a-simple-lego-automatic-transmission/ | A Simple LEGO Automatic Transmission | Lewin Day | [
"Misc Hacks"
] | [
"gearbox",
"lego",
"transmission"
] | The automatic transmission in your average automobile can be a complicated, hydraulic-y thing full of spooky fluids and many spinning parts. However, simpler designs for “automatic” gearboxes exist, like this Lego design from [FUNTastyX].
The build is based around a simple open differential but configured in a unique w... | 9 | 5 | [
{
"comment_id": "6366664",
"author": "MinorHavoc",
"timestamp": "2021-07-23T06:27:34",
"content": "That’s brilliant.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6366692",
"author": "Dude",
"timestamp": "2021-07-23T09:45:25",
"conte... | 1,760,373,009.196881 | ||
https://hackaday.com/2021/07/22/what-kind-of-gpu-are-you/ | What Kind Of GPU Are You? | Al Williams | [
"computer hacks"
] | [
"CUDA",
"gpu",
"graphics",
"graphics card",
"graphics processing",
"opencl"
] | In the old days, big computers often had some form of external array processor. The idea is you could load a bunch of numbers into the processor and then do some math operations on all of the numbers in parallel. These days, you are more likely to turn to your graphics card for number crunching support. You’ll usually ... | 9 | 8 | [
{
"comment_id": "6366643",
"author": "M",
"timestamp": "2021-07-23T02:44:27",
"content": "Woo! ROCm!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6366657",
"author": "Ostracus",
"timestamp": "2021-07-23T05:08:34",
"content": "“If you can tell the... | 1,760,373,008.987326 | ||
https://hackaday.com/2021/07/22/rover-uses-different-kind-of-tracks/ | Rover Uses Different Kind Of Tracks | Danie Conradie | [
"Robots Hacks"
] | [
"3d printed",
"balancing robot",
"james bruton",
"Tank Tracks"
] | Tracked robots usually require at least two wheels inside to work properly. However, [James Bruton] discovered a curious tractor design from the 1940s, the Fordson Rotaped, which only uses a single sprocket wheel inside each track. Being [James], he built a
self-balancing robot around the rotaped concept
.
Instead of a... | 7 | 4 | [
{
"comment_id": "6366620",
"author": "Steven Gann",
"timestamp": "2021-07-23T00:18:09",
"content": "I’d never seen a rotoped before and I wonder why they aren’t more popular. Mechanical wear, I’d guess.Another excellent robot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"... | 1,760,373,009.155345 | ||
https://hackaday.com/2021/07/22/detecting-ripeness-in-fruit-and-vegetables-via-neural-networks/ | Detecting Ripeness In Fruit And Vegetables Via Neural Networks | Lewin Day | [
"Misc Hacks"
] | [
"fruit",
"produce",
"ripe",
"ripeness",
"vegetable",
"vegetables"
] | Humans have an innate knack for identifying food that is fit to eat. There’s a reason you instinctively enjoy fresh fruit and vegetables, but find maggot-infested rotting flesh offputting, for example. However, we like to automate as much of the food production process as possible so we can do other things, so it’s nec... | 11 | 4 | [
{
"comment_id": "6366575",
"author": "Ghent The Slicer",
"timestamp": "2021-07-22T20:55:08",
"content": "But the color is not a good indicator for ripeness.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6366598",
"author": "Truth",
"timestam... | 1,760,373,009.305892 | ||
https://hackaday.com/2021/07/22/new-video-series-designing-with-complex-geometry/ | New Video Series: Designing With Complex Geometry | Tom Nardi | [
"how-to",
"Software Hacks"
] | [
"3D design",
"cad",
"geometry",
"HackadayU",
"parametric design",
"rhino 3d modeling",
"visual programming"
] | Whether it’s a 3D printed robot chassis or a stained glass window, looking at a completed object and trying to understand how it was designed and put together can be intimidating. But upon closer examination, you can often identify the repeating shapes and substructures that were combined to create the final piece. Soo... | 17 | 10 | [
{
"comment_id": "6366552",
"author": "Paul",
"timestamp": "2021-07-22T19:20:13",
"content": "I freakin’ love Rhino. My best days at work are when I just get to design in Rhino for hours on end.I frequently describe it as “like AutoCAD, but fun!”. Way less awkward than other programs in terms of ho... | 1,760,373,009.25653 | ||
https://hackaday.com/2021/07/22/who-flew-across-the-atlantic-first-the-airborne-boats-of-1919/ | Who Flew Across The Atlantic First? The Airborne Boats Of 1919 | Al Williams | [
"Featured",
"History",
"Slider"
] | [
"aviation",
"history",
"navy",
"nc-4",
"transatlantic",
"transoceanic"
] | Aviation history is a bit strange. People tend to remember some firsts but not others and — sometimes — not even firsts. For example, everyone knows Amelia Earhart attempted to be the first woman to fly around the globe. She failed, but do you know who succeeded? It was Jerrie Mock. How about the first person to do it?... | 47 | 14 | [
{
"comment_id": "6366520",
"author": "localroger",
"timestamp": "2021-07-22T17:28:48",
"content": "Lindbergh is specifically credited with making the first _solo_ flight across the Atlantic, not the first flight or even the first nonstop flight. What made it remarkable was that he was alone in the ... | 1,760,373,009.514213 | ||
https://hackaday.com/2021/07/21/giving-control-of-a-smartphone-robot-to-a-raspberry-pi/ | Giving Control Of A Smartphone Robot To A Raspberry Pi | Danie Conradie | [
"Robots Hacks"
] | [
"robot",
"romo",
"serial communications",
"smartphone"
] | Most gadgets that interface with smartphones have a rather short lifespan and inevitably end up as E-waste. Unless hackers give them a second life, as is the case with the Romo, a little smartphone-controlled robot. [David Goeken] has successfully
reverse-engineered the communication protocol to allow the Romo to contr... | 3 | 3 | [
{
"comment_id": "6366210",
"author": "Orange",
"timestamp": "2021-07-21T14:53:35",
"content": "“Most gadgets that interface with smartphones have a rather short lifespan and inevitably end up as E-waste.”I kind of feel that a distinction between Apple devices and everything else is appropriate here.... | 1,760,373,009.343012 | ||
https://hackaday.com/2021/07/20/injection-molds-from-your-3d-printer/ | Injection Molds From Your 3D Printer | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"injection molding"
] | Last time we checked in with [CrafsMan] he had bought a benchtop injection molding machine. This time, he shows off how to
3D print molds
. If you have ever had to spend to make tooling for injection molding, you’ll appreciate being able to make molds relatively inexpensively.
To test his workflow, [CrafsMan] created a... | 5 | 4 | [
{
"comment_id": "6366154",
"author": "jwrm22",
"timestamp": "2021-07-21T11:17:17",
"content": "Even when I’ve not seen many of this guys videos. I recognized the puppet right away. Amazingly skilled and his tutorials on silver soldering (hard solder) helped me a lot in the past. I can see this being... | 1,760,373,009.385227 | ||
https://hackaday.com/2021/07/20/appcad-does-transmission-lines/ | AppCAD Does Transmission Lines | Al Williams | [
"Tool Hacks"
] | [
"agilent",
"avago",
"broadcom",
"RF Design",
"transmission line"
] | Broadcom and Agilent are perhaps not household words in every household, but among those who work with RF, they are common enough names. An Agilent developer wrote AppCAD to help with common RF design computations and now works for Avago who bought Broadcom. But whoever’s branding is on it, you can download the tool fr... | 7 | 6 | [
{
"comment_id": "6366099",
"author": "PWalsh",
"timestamp": "2021-07-21T03:48:29",
"content": "SimSmith is free and does most (all?) of those things. It lets you cascade several components or circuits together and shows what the characteristics are.It takes a bit of getting used to, but it’s wildly ... | 1,760,373,009.426035 | ||
https://hackaday.com/2021/07/20/live-energy-monitor-helps-plan-power-hungry-appliance-use/ | Live Energy Monitor Helps Plan Power-Hungry Appliance Use | Donald Papp | [
"green hacks",
"home hacks",
"Wireless Hacks"
] | [
"grid",
"power meter",
"power monitoring",
"smart meter",
"solar"
] | There are a lot of good reasons to have a better understanding of one’s household power use, and that is especially true for those that do their own solar power collection. For example, [Frederick] determined that it would be more efficient to use large appliances (like a dishwasher or washing machine) when there was e... | 8 | 4 | [
{
"comment_id": "6366054",
"author": "Reg",
"timestamp": "2021-07-20T23:14:03",
"content": "Nice work!I’ve objected to quite a few posts of late, as have others. It’s very nice to see a well written post about an interesting and non-trivial topic.Thank you!",
"parent_id": null,
"depth": 1,
... | 1,760,373,009.616862 | ||
https://hackaday.com/2021/07/20/diy-fume-extractor-keeps-air-clean-while-you-solder/ | DIY Fume Extractor Keeps Air Clean While You Solder | Lewin Day | [
"3d Printer hacks"
] | [
"fume extractor"
] | Soldering is a key skill to learn when building electronics, but it’s also a process that can put out a lot of fumes. The best way to deal with this is to use a fume extractor.
Of course, you can always make your own, as [Open Green Energy] ably demonstrates
. It’s a guided build of
the design [rdmmkr] published on Thi... | 17 | 6 | [
{
"comment_id": "6366045",
"author": "Hirudinea",
"timestamp": "2021-07-20T21:44:21",
"content": "THAT SUCKS! (And since [Open Green Energy] sounds as if North American English isn’t his first language) That’s really good.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comm... | 1,760,373,009.570736 | ||
https://hackaday.com/2021/07/20/one-giant-button-to-mute-them-all/ | One Giant Button To Mute Them All | Kristina Panos | [
"Arduino Hacks",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"mute",
"Neopixels",
"rotary encoder",
"Seeeduino Xiao"
] | The second round of this year’s Hackaday Prize is coming to a close, and we asked you to come up with ways of refreshing work-from-home life. Well here’s one we probably all could use —
a large emergency mute button that can also turn off video with an extra click
. You know, in case your kid or your roommate decides t... | 3 | 3 | [
{
"comment_id": "6366024",
"author": "Ostracus",
"timestamp": "2021-07-20T19:21:32",
"content": "Combine this with my “easy” button and one can relax in silence.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6366140",
"author": "Alice Lalita Heald",
"... | 1,760,373,009.771596 | ||
https://hackaday.com/2021/07/20/the-story-behind-ohms-law/ | The Story Behind Ohm’s Law | Al Williams | [
"Featured",
"History",
"Original Art",
"Slider"
] | [
"barlows law",
"barlows wheel",
"georg ohm",
"ohms law",
"pile",
"voltaic pile"
] | Do you ever wonder how much of what we do you could figure out from scratch? Tying your shoe might seem
simple now, but kids have trouble mastering the skill, and dreaming it up for the first time is even harder. The same holds true for a lot of technology we use every day. Would you think up the computer mouse or even... | 22 | 10 | [
{
"comment_id": "6365999",
"author": "Moryc",
"timestamp": "2021-07-20T17:26:37",
"content": "There is also a Borg law: with enough voltage and current resistance is futile…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6366003",
"author": "Ragnarok... | 1,760,373,009.890203 | ||
https://hackaday.com/2021/07/22/no-mask-required-bring-a-hack-is-back-august-5th/ | No Mask Required: Bring-A-Hack Is Back August 5th | Kristina Panos | [
"cons"
] | [
"Bring A Hack",
"pandemic",
"remote"
] | Yes, we’re still in a pandemic and yes, these types of events are still happening over videoconference and not in meat space. But you know what? That means that so many more people have the opportunity to show up and show off their hacks! As long as 1 PM PDT is within your personal uptime, that is. Maybe you can make a... | 9 | 5 | [
{
"comment_id": "6366540",
"author": "Jii",
"timestamp": "2021-07-22T18:17:54",
"content": "-1 for the graphics. That’s just a V-6.(not really, V-6 is acceptable in some rare cases, but next time, next time V-8. Promise? Pretty pleeease)",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,009.81888 | ||
https://hackaday.com/2021/07/22/lord-kelvins-contraption-turns-drips-into-sparks/ | Lord Kelvin’s Contraption Turns Drips Into Sparks | Tom Nardi | [
"Science"
] | [
"high voltage",
"Lord Kelvin",
"Plasma Channel",
"water"
] | It’s easy to think that devices which generate thousands of volts of electricity must involve relatively modern technology, but the fact is, machines capable of firing sparks through open air predate Edison’s light bulb. Which means that recreating them with modern tools, construction techniques, and part availability,... | 21 | 13 | [
{
"comment_id": "6366513",
"author": "RoGeorge",
"timestamp": "2021-07-22T16:50:20",
"content": "https://youtu.be/ViwSDL657L4?t=2640:o)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6366532",
"author": "nada",
"timestamp": "2021-07-22T17:58:47",
"... | 1,760,373,009.955819 | ||
https://hackaday.com/2021/07/22/avoiding-repetitive-stress-injury-invest-in-yourself-now-or-pay-later/ | Avoiding Repetitive Stress Injury: Invest In Yourself Now, Or Pay Later | Kristina Panos | [
"Featured",
"Interest",
"Lifehacks",
"Original Art",
"Peripherals Hacks",
"Rants",
"Slider"
] | [
"ergonomic keyboard",
"ergonomics",
"repetitive strain injury",
"repetitive stress injury",
"RSI"
] | There I was, thirty years after I first sat down at an Apple IIe , and I suddenly found myself wondering if I would ever use a computer again without pain. How could I work if I couldn’t use a computer anymore? I had to seriously ask myself this question. It took a bit of a winding road to figure out what was going on ... | 49 | 25 | [
{
"comment_id": "6366469",
"author": "BT",
"timestamp": "2021-07-22T14:16:22",
"content": "Do you touch-type? I have often wondered if touch-typists suffer more from this than poke-and-hope typists. You seem to have to always be using your muscles to hold your hands still in exactly the correct plac... | 1,760,373,010.054265 | ||
https://hackaday.com/2021/07/22/modified-3d-printer-solders-through-hole-components/ | Modified 3D-Printer Solders Through-Hole Components | Dan Maloney | [
"3d Printer hacks"
] | [
"extruder",
"fixturing",
"gantry",
"smt",
"solder bot",
"soldering",
"through hole"
] | Surface-mount technology has been a fantastic force multiplier for electronics in general and for hobbyists in particular. But sometimes you’ve got no choice but to use through-hole components, meaning that even if you can take advantage of SMDs for most of the design, you still might need to spend a little time with s... | 23 | 10 | [
{
"comment_id": "6366431",
"author": "yetihehe",
"timestamp": "2021-07-22T12:13:21",
"content": "> The video below shows it in action at high speed; we slowed it down to 25% to get an idea of how it is in realityVideo looks like it’s in realtime speed. Did you slow it when viewing, or what?",
"... | 1,760,373,010.109443 | ||
https://hackaday.com/2021/07/22/magnetic-bearings-put-the-spin-on-this-flywheel-battery/ | Magnetic Bearings Put The Spin On This Flywheel Battery | Dan Maloney | [
"Misc Hacks"
] | [
"alternator",
"angular momentum",
"bearing",
"flywheel",
"friction",
"generator",
"maglev",
"Magnetic levitation",
"neodymium",
"rectifier"
] | [Tom Stanton] is right about one thing: flywheels make excellent playthings. Whether watching a spinning top that never seems to slow down, or feeling the weird forces a gyroscope exerts, spinning things are oddly satisfying. And
putting a flywheel to work as a battery
makes it even cooler.
Of course, using a flywheel ... | 35 | 9 | [
{
"comment_id": "6366393",
"author": "Mike Massen, Perth, Western Australia",
"timestamp": "2021-07-22T08:10:03",
"content": "Nice to see articles on magnetic bearings. Up till yesterday I haven’t found much that’s sophisticated enough to scale up to large size in ground installations without requir... | 1,760,373,012.289715 | ||
https://hackaday.com/2021/07/21/raspberry-pi-server-cluster-in-1u-rack-mount-case/ | Raspberry Pi Server Cluster In 1U Rack-Mount Case | Chris Lott | [
"computer hacks",
"Raspberry Pi"
] | [
"low power",
"rack mount server",
"raspberry pi cluster"
] | [Paul Brown] wants to take advantage of off-site server colocation services. But the providers within [Paul]’s region typically place a limit of 1A @ 120V on each server. Rather than search out commercial low-power solutions, [Paul] embraced the hacker spirit and
built his own server
from five Raspberry Pi 4b single bo... | 30 | 12 | [
{
"comment_id": "6366366",
"author": "Jonathan Bennett",
"timestamp": "2021-07-22T05:10:09",
"content": "I have two servers being colocated now, both of them I built from Supermicro parts. Both cost more than $800, but the extra processing and storage oomph is worth it for me. If this has the power ... | 1,760,373,012.141839 | ||
https://hackaday.com/2021/07/21/miller-effect-time/ | Miller (Effect) Time | Al Williams | [
"Misc Hacks"
] | [
"amplifier",
"miller capacitance",
"miller effect",
"transistor"
] | While the
Miller effect
might sound like fun, it is actually the effect of parasitic capacitance in amplifiers. What do you do about it? Watch the video below the break from [All Electronics] and find out. We like how the test circuit it uses has a switch to put the mitigation circuitry in and out of the test for compa... | 10 | 6 | [
{
"comment_id": "6366360",
"author": "Paul",
"timestamp": "2021-07-22T04:40:18",
"content": "….”and increases the amplifier’s input impedance”???",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6366399",
"author": "spotke",
"timestamp": "2021-... | 1,760,373,012.025395 | ||
https://hackaday.com/2021/07/21/a-new-spin-on-360-degree-displays/ | A New Spin On 360 Degree Displays | Michael Shaub | [
"LED Hacks"
] | [
"360 degree",
"custom display",
"persistence of vision",
"phenakistoscope",
"POV display",
"Pringles can",
"zeotrope"
] | Back in 2018, [Salah] created
a prototype display
that seems to defy logic using little more than a Pringles can and a fast motor. While not volumetric, this hack does show the same 2D image from any vantage point in 360 degrees around it.
How can cardboard create this effect? Somewhat like a
zoetrope
uses slits to cre... | 20 | 7 | [
{
"comment_id": "6366322",
"author": "Mike Massen, Perth, Western Australia",
"timestamp": "2021-07-21T23:14:40",
"content": "How, what a neat idea, though provoking too – hmm lottsa potential, I like it :-)Thanks for posting, cool !",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,012.345209 | ||
https://hackaday.com/2021/07/21/clever-pcb-brings-micro-usb-to-the-arduino-uno/ | Clever PCB Brings Micro USB To The Arduino Uno | Tom Nardi | [
"Arduino Hacks",
"Parts"
] | [
"Arduino Uno",
"connector",
"port",
"retrofit",
"usb"
] | Even with more and more devices making the leap to USB-C, the Arduino Uno still proudly sports a comparatively ancient Type-B port. It wouldn’t be a stretch to say that many Hackaday readers only keep one of these cables around because they’ve still got an Uno or two they need to plug in occasionally.
Looking to at lea... | 38 | 15 | [
{
"comment_id": "6366287",
"author": "Mike",
"timestamp": "2021-07-21T20:48:19",
"content": "Why bother with micro, should have went USBC",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6366289",
"author": "Me",
"timestamp": "2021-07-21T20:51:... | 1,760,373,011.903438 | ||
https://hackaday.com/2021/07/21/zerobug-from-simulation-to-smooth-walking/ | ZeroBug: From Simulation To Smooth Walking | Danie Conradie | [
"Robots Hacks",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"3d printed",
"hexapod",
"processing",
"simulation"
] | Thanks to 3D printing and cheap hobby servos, building you’re own small walking robot is not particularly difficult, but getting them to walk smoothly can be an entirely different story. Knowing this from experience, [Max.K] tackled the software side first by creating a virtual simulation of his
ZeroBug hexapod
, befor... | 9 | 7 | [
{
"comment_id": "6366264",
"author": "Garth Bock",
"timestamp": "2021-07-21T18:43:40",
"content": "This is really neat and a little creepy at the same time. It is interesting how the simulation was used to figure out the walking routines. Just so it doesn’t move fast or replicate and were all good."... | 1,760,373,012.0714 | ||
https://hackaday.com/2021/07/21/retrotechtacular-nuvistor-vacuums-last-gasp/ | Retrotechtacular: Nuvistor, Vacuum’s Last Gasp | Jenny List | [
"Hackaday Columns",
"History",
"Retrotechtacular",
"Slider"
] | [
"6CW4",
"nuvistor",
"tubes"
] | In 2021 all our electronics are solid state, in that they exclusively use semiconductor devices as their active components. Some of us may experiment with vacuum tubes, but only for curiosity or aesthetic purposes. Semiconductors have overtaken vacuum devices in all but the rarest of niche applications due to their eas... | 51 | 21 | [
{
"comment_id": "6366238",
"author": "Steven-X",
"timestamp": "2021-07-21T17:05:53",
"content": "The only place I recall seeing Nuvistors was in late-model TV tuners. Now I wish I had done more “dumpster diving” back then.",
"parent_id": null,
"depth": 1,
"replies": [
{
"co... | 1,760,373,012.434588 | ||
https://hackaday.com/2021/07/21/precise-sundial-tells-time-to-the-minute/ | Precise Sundial Tells Time To The Minute | Bryan Cockfield | [
"Science"
] | [
"calibration",
"clock",
"digital",
"solar",
"sun time",
"sundial"
] | We’re always a fan of an interesting or unique clock build around here, which often use intricate pieces of technology to keep time such as weights and gears, crystal oscillators, or even a global network of satellites in the case of GPS. While these are all interesting methods of timekeeping, the original method of tr... | 16 | 9 | [
{
"comment_id": "6366219",
"author": "Andy Pugh",
"timestamp": "2021-07-21T15:37:41",
"content": "There is a very clever digital sundial design out there.https://en.wikipedia.org/wiki/Digital_sundialLooking around, there are 3D printable versions.",
"parent_id": null,
"depth": 1,
"replie... | 1,760,373,011.821936 | ||
https://hackaday.com/2021/07/21/what-exactly-is-a-gaussian-blur/ | What Exactly Is A Gaussian Blur? | Lewin Day | [
"Featured",
"Interest",
"Original Art",
"Slider",
"Software Hacks"
] | [
"blur",
"digital photo",
"gaussian blur",
"image",
"image processing",
"images",
"photo"
] | Blurring is a commonly used visual effect when digitally editing photos and videos. One of the most common blurs used in these fields is the Gaussian blur. You may have used this tool thousands of times without ever giving it greater thought. After all, it does a nice job and does indeed make things blurrier.
Of course... | 29 | 12 | [
{
"comment_id": "6366204",
"author": "Truth",
"timestamp": "2021-07-21T14:33:40",
"content": "You can also use kernel’s to highlight features in an image like detecting edges by suppressing everything that is not high contrast (ref:https://en.wikipedia.org/wiki/Kernel_(image_processing))",
"pare... | 1,760,373,012.218287 | ||
https://hackaday.com/2021/07/21/its-linux-but-on-an-esp32/ | It’s Linux – But On An ESP32 | Jenny List | [
"Software Hacks"
] | [
"ESP32",
"linux",
"RISC-V"
] | GNU/Linux is an open-source marvel that has over the past three decades given us an almost infinitely versatile and powerful UNIX-like operating system. But even it has its limitations, particularly at the lower end of the hardware scale where less fully-featured processors often lack the prerequisites such as a memory... | 44 | 19 | [
{
"comment_id": "6366151",
"author": "Flemming Jacobsen",
"timestamp": "2021-07-21T11:08:12",
"content": "Hah! This is cool",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6366156",
"author": "jpa",
"timestamp": "2021-07-21T11:30:07",
"content": "Th... | 1,760,373,011.981762 | ||
https://hackaday.com/2021/07/20/ball-balancing-wheel-puts-a-spin-on-inverted-pendulums/ | Ball Balancing Wheel Puts A Spin On Inverted Pendulums | Sonya Vasquez | [
"Robots Hacks"
] | [
"ball balancing",
"BLDC controller",
"brushless motor",
"control theory",
"state space"
] | If you march sufficiently deep into the wilderness of control theory, you’ll no doubt encounter the inverted pendulum problem. These balancing acts have emerged with a number of variants over the years, but just because it’s been done before doesn’t mean there’s no space for something new. Here, [David Gonzalez], has t... | 18 | 7 | [
{
"comment_id": "6365961",
"author": "Nobody of Import",
"timestamp": "2021-07-20T15:38:33",
"content": "Oooh. Engineering Pr0n!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6365971",
"author": "RP",
"timestamp": "2021-07-20T15:59:58",
"content... | 1,760,373,012.490079 | ||
https://hackaday.com/2021/07/20/this-group-of-women-tried-to-break-into-astronaut-program-in-1960s-one-just-made-it/ | This Group Of Women Tried To Break Into Astronaut Program In 1960s; One Just Made It | Tom Nardi | [
"Biography",
"Featured",
"History",
"Slider",
"Space"
] | [
"commercial space",
"history",
"nasa",
"politics",
"Project Mercury",
"space tourism",
"suborbital"
] | When Mary Wallace “Wally” Funk reached the boundary of space aboard the first crewed flight of Blue Origin’s New Shepard capsule earlier today, it marked the end of a journey she started 60 years ago. In 1961 she became the youngest member of what would later become known as the “Mercury 13”, a group of accomplished fe... | 33 | 15 | [
{
"comment_id": "6365929",
"author": "Jakob",
"timestamp": "2021-07-20T14:17:31",
"content": "Imagine the changes she has seen, and seen through.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6365937",
"author": "Comedicles",
"timestamp": "2021-07-20T... | 1,760,373,013.506297 | ||
https://hackaday.com/2021/07/20/extracting-the-wifi-firmware-and-putting-back-a-keylogger/ | Extracting The WiFi Firmware And Putting Back A Keylogger | Matthew Carlson | [
"laptops hacks",
"Wireless Hacks"
] | [
"8051",
"firmware",
"Intel 8051",
"realtek",
"wifi"
] | In the interest of simplification or abstraction, we like to think of the laptop on the kitchen table as a single discrete unit of processing. In fact, there is a surprisingly large number of small processors alongside the many cores that make up the processor. [8051enthusiast] dove into the
Realtek rtl8821ae WiFi chip... | 35 | 12 | [
{
"comment_id": "6365877",
"author": "theonethatshouldnotbenamed",
"timestamp": "2021-07-20T11:17:47",
"content": "mind blown :Okudos to 8051enthusiast",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6365880",
"author": "theonethatshouldnotbenamed",... | 1,760,373,013.220526 | ||
https://hackaday.com/2021/07/20/the-gatwick-drone-little-by-little-the-story-continues-to-unravel/ | The Gatwick Drone: Little By Little, The Story Continues To Unravel | Jenny List | [
"drone hacks",
"News"
] | [
"drone",
"drone law",
"Gatwick",
"Gatwick airport",
"multirotor"
] | If you remember the crazy events in the winter of 2018 as two airports were closed over reports of drone sightings, you might be interested to hear that there’s still
a trickle of information
about those happenings
making it into the public domain
as Freedom of Information responses.
Three Christmases ago the news medi... | 96 | 23 | [
{
"comment_id": "6365847",
"author": "Alice Lalita Heald",
"timestamp": "2021-07-20T08:20:21",
"content": "I call it “hacking an airline with a drone” :DThe jet engines are prepared to grind down birds, but would it take a drone?New design requirements :D",
"parent_id": null,
"depth": 1,
... | 1,760,373,013.63338 | ||
https://hackaday.com/2021/07/19/smart-mirror-talks-to-3d-printers/ | Smart Mirror Talks To 3D Printers | Kristina Panos | [
"Raspberry Pi"
] | [
"Magic Mirror",
"octomirror",
"Octoprint",
"raspberry pi",
"smart mirror"
] | As time goes by, it’s only getting easier to make a magic mirror. You know, a mirror connected to the internet that shows information like news, weather, or whatever you want, right there on top of your stunning visage. In [Forsyth Creations]’ case, that data includes 3D printer activity on the network — something that... | 2 | 2 | [
{
"comment_id": "6365848",
"author": "Onetruegod",
"timestamp": "2021-07-20T08:21:09",
"content": "A good build and a good video.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6366037",
"author": "echodelta",
"timestamp": "2021-07-20T20:29:18",
"c... | 1,760,373,012.895582 | ||
https://hackaday.com/2021/07/19/software-defined-cpu/ | Software Defined… CPU? | Al Williams | [
"computer hacks",
"News"
] | [
"cpu",
"instruction set",
"instruction set architecture",
"isa",
"x86"
] | Everything is better when you can program it, right? We have software-defined radios, software-defined networks, and software-defined storage. Now a company called
Ascenium
wants to create a software-defined CPU. They’ve raised millions of dollars to bring the product to market.
The materials are a bit hazy, but it sou... | 45 | 23 | [
{
"comment_id": "6365769",
"author": "Myself",
"timestamp": "2021-07-20T02:02:10",
"content": "Sounds midway between Transmeta and an FPGA. Super interesting!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6365770",
"author": "Jw",
"timestamp": "2021-0... | 1,760,373,012.976505 | ||
https://hackaday.com/2021/07/19/diy-camera-dolly-costs-more-time-than-money/ | DIY Camera Dolly Costs More Time Than Money | Donald Papp | [
"3d Printer hacks",
"digital cameras hacks"
] | [
"3d printed",
"camera dolly",
"diy",
"dolly",
"dope dolly"
] | A camera dolly can be fantastic filmmaking tool, and [Cornelius] was determined to create his own version:
the “Dope” DIY Dolly
. The result not only upped his production quality, but was also entirely in line with his DIY approach to filmmaking in general.
A basic dolly design is straightforward enough: a flat platfor... | 14 | 3 | [
{
"comment_id": "6365745",
"author": "Paul",
"timestamp": "2021-07-19T23:38:17",
"content": "Interesting. Seriously overconstrained. I wonder how much smoother it would be with eleven fewer wheels.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6365750",
... | 1,760,373,013.433673 | ||
https://hackaday.com/2021/07/19/reimagine-supportive-tech-for-the-newest-hackaday-prize-challenge/ | Reimagine Supportive Tech For The Newest Hackaday Prize Challenge | Mike Szczys | [
"contests",
"Hackaday Columns",
"home hacks",
"Slider",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"supportive tech"
] | Beginning right now, the 2021 Hackaday Prize challenges you to
Reimagine Supportive Tech
. Quite frankly, this is all about shortcuts to success. Can we make it easier for people to learn about science and technology? Can we break down some barriers that keep people from taking up DIY as a hobby (or way of life)? What ... | 7 | 3 | [
{
"comment_id": "6365736",
"author": "PWalsh",
"timestamp": "2021-07-19T22:41:54",
"content": "> Here’s a blueprint that can take a beginner from zero to solder smoke while having fun along the way.So close. I was all set to grab the design, cut up some wood, and build it, but…There’s no design file... | 1,760,373,013.149903 | ||
https://hackaday.com/2021/07/19/an-oled-photo-frame-powered-by-the-attiny85/ | An OLED Photo Frame Powered By The ATtiny85 | Tom Nardi | [
"ATtiny Hacks",
"Software Hacks"
] | [
"attiny85",
"coin cell",
"i2c",
"oled",
"ssd1306",
"universal serial interface"
] | Rolling your own digital picture frame that loads images from an SD card and displays them on an LCD with a modern microcontroller like the ESP32 is an afternoon project, even less if you pull in somebody else’s code. But what if you don’t have the latest and greatest hardware to work with?
Whether you look at it as a ... | 10 | 7 | [
{
"comment_id": "6365715",
"author": "Menno",
"timestamp": "2021-07-19T20:45:22",
"content": "I absolutely love what one can do with a humple chip like the ATTiny85. My favourite project is the ATTiny weather station (by the same guy who did the other OLED project you’re linking to.http://www.techno... | 1,760,373,013.275335 | ||
https://hackaday.com/2021/07/19/sol75-uses-ai-to-design-standard-mechanical-parts/ | SOL75 Uses AI To Design Standard Mechanical Parts | Chris Lott | [
"3d Printer hacks"
] | [
"3d printing",
"generative design",
"openscad",
"parametric design",
"SOL75"
] | [Francesco] developed a
parametric design tool called SOL75
which aims to take the drudgery out of designing the basic mechanical parts used in projects. He knows how to design things like gears, pulleys, belts, brackets, enclosures, etc., but finds it repetitive and boring. He would rather spend his time on the intere... | 19 | 5 | [
{
"comment_id": "6365704",
"author": "JanW",
"timestamp": "2021-07-19T19:27:02",
"content": "I sure hope .STP export will be included at one point. I just haaaaaaaaate .STL so much. I need stuff I can change, work with, extend, (…)That’s why I upload all my stuff (to thingyverse and prusaprinters) i... | 1,760,373,013.378916 | ||
https://hackaday.com/2021/07/19/the-newlib-embedded-c-standard-library-and-how-to-use-it/ | The Newlib Embedded C Standard Library And How To Use It | Maya Posch | [
"Hackaday Columns",
"Microcontrollers",
"Slider",
"Software Development"
] | [
"microcontroller",
"newlib",
"software",
"standard library"
] | When writing code for a new hardware platform, the last thing you want to do is bother with the minutiae of I/O routines, string handling and other similarly tedious details that have nothing to do with the actual project. On bigger systems, this is where the
C standard library
would traditionally come into play.
For s... | 4 | 4 | [
{
"comment_id": "6365689",
"author": "Sailingfree",
"timestamp": "2021-07-19T18:05:42",
"content": "Nice to see a library with most of the scaffolding in place, you can choose subsets of the functions too. Many of the basic blocks were in the original k&r book as well, though with little bounds chec... | 1,760,373,013.321759 | ||
https://hackaday.com/2021/07/19/python-your-keyboard-hack-chat-with-adafruit/ | Python Your Keyboard Hack Chat With Adafruit | Dan Maloney | [
"Hackaday Columns"
] | [
"Adfruit",
"CircuitPython",
"Hack Chat",
"hid",
"input",
"interface",
"keyboard",
"ladyada",
"peripheral",
"python"
] | Join us on Wednesday, July 21 at noon Pacific for the
Python Your Keyboard Hack Chat
with the Adafruit crew!
Especially over the last year and a half, most of us have gotten the feeling that there’s precious little distinction between our computers and ourselves. We seem welded together, inseparable even, attached as w... | 10 | 3 | [
{
"comment_id": "6365665",
"author": "sampleusername",
"timestamp": "2021-07-19T16:55:10",
"content": "I’m pretty sure the comfort issue with most keyboards, ergonomic or not, is that the keys are the wrong size. We sell gloves in multiple sizes, but most keyboards use the standard 18mm square even ... | 1,760,373,013.677316 | ||
https://hackaday.com/2021/07/19/samsung-shuttering-original-smartthings-hubs/ | Samsung Shuttering Original SmartThings Hubs | Chris Lott | [
"home hacks",
"News"
] | [
"home automation",
"IoT",
"samsung",
"smartthings"
] | Samsung is causing much angst among its SmartThings customers by shutting down support for its original SmartThings home automation hub as of the end of June. These are network-connected home automation routers providing Zigbee and Z-Wave connectivity to your sensors and actuators. It’s not entirely unreasonable for ma... | 83 | 25 | [
{
"comment_id": "6365635",
"author": "Val",
"timestamp": "2021-07-19T15:38:02",
"content": "I don’t get why home automation for the public isn’t moving to using real standardized protocols, with products designed to last 20 years minimum like KNX, oh well.",
"parent_id": null,
"depth": 1,
... | 1,760,373,013.792882 | ||
https://hackaday.com/2021/07/19/a-look-back-on-a-decade-of-kerbal-space-program/ | A Look Back On A Decade OfKerbal Space Program | Tom Nardi | [
"Featured",
"Games",
"Interest",
"Original Art",
"Slider",
"Space"
] | [
"education",
"kerbal space program",
"ksp",
"simulation",
"space",
"video games"
] | Just a few weeks before
Atlantis
embarked on the final flight of the Space Shuttle program in 2011, a small Mexican company by the name of Squad quietly released
Kerbal Space Program
(KSP) onto an unsuspecting world. Until that point the company had only developed websites and multi-media installations.
Kerbal
wasn’t e... | 24 | 8 | [
{
"comment_id": "6365612",
"author": "Nobody Of Import",
"timestamp": "2021-07-19T14:24:04",
"content": "They may have stopped work on the original, but they’re carrying it forward next year with a new cut.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6365... | 1,760,373,014.204295 | ||
https://hackaday.com/2021/07/18/the-hidden-sounds-of-the-past/ | The Hidden Sounds Of The Past | Matthew Carlson | [
"Phone Hacks",
"Retrocomputing"
] | [
"audio",
"magnetic tape",
"sontranic",
"Techmoan"
] | If you stop to think, the number of pre-recorded voices and sounds you might hear on an average day might number in the hundreds. Everything from subway announcements, alerts on your phone, to sound effects at Disneyland is a sound that triggers in response to an event. [Techmoan] came across
a device that many of us h... | 20 | 10 | [
{
"comment_id": "6365323",
"author": "Alex",
"timestamp": "2021-07-18T14:14:57",
"content": "Look Mum No Computer just posted a follow up video on repairing this machine and wiring it into a telephone exchange:https://www.youtube.com/watch?v=qvzH7DSsD3g",
"parent_id": null,
"depth": 1,
"... | 1,760,373,013.922347 | ||
https://hackaday.com/2021/07/18/dewalt-literal-hack-upgrades-battery/ | DeWalt Literal Hack Upgrades Battery | Al Williams | [
"Tool Hacks"
] | [
"battery",
"cordless tool",
"dewalt",
"drill",
"power tool",
"screw driver",
"screwdriver"
] | There are several important decisions you make in your life: Coke or Pepsi; vi or emacs; PC or Mac. But, lately, you need to pick a battery ecosystem for your tools. DeWalt? Black & Decker? Or just cheapies from Harbor Freight? But what happens when your vendor of choice changes their batteries? That’s the situation [j... | 40 | 15 | [
{
"comment_id": "6365297",
"author": "Foldi-One",
"timestamp": "2021-07-18T11:11:53",
"content": "Works, doesn’t look hugely impractical. Seems like a win to me. Ugly but functional, and in the world of tools pretty really shouldn’t matter at all..I’ll probably be doing something similar soon myself... | 1,760,373,013.867275 | ||
https://hackaday.com/2021/07/18/arduino-cable-tracer-helps-diagnose-broken-usb-cables/ | Arduino Cable Tracer Helps Diagnose Broken USB Cables | Lewin Day | [
"Arduino Hacks",
"Tool Hacks"
] | [
"arduino",
"cable",
"cable tester",
"usb"
] | We’ve all found ourselves swimming amongst too many similar-looking USB cables over the years. Some have all the conductors and functionality, some are weird power-only oddballs, and some charge our phones quickly while others don’t. It’s a huge headache and one that [TechKiwiGadgets] hopes to solve with
the Arduino Ca... | 31 | 12 | [
{
"comment_id": "6365292",
"author": "IIVQ / Tijmen Stam",
"timestamp": "2021-07-18T10:44:53",
"content": "No Micro USB-A port?My dad just bought a new ebike which was advertized as being able to charge phones. On checking the day before leaving on a multi-day trip, he found out the port was Micro U... | 1,760,373,013.99501 | ||
https://hackaday.com/2021/07/17/control-an-irl-home-from-minecraft/ | Control An IRL Home From Minecraft | Bryan Cockfield | [
"Games"
] | [
"api",
"emulator",
"home automation",
"interface",
"logic",
"minecraft",
"websocket"
] | Minecraft seems to be a game in which anything is possible, both in the virtual world and in the real one. As a sandbox-style game, we’ve seen all kinds of things implemented in it including arithmetic logic units and microcontroller emulators. On the other end of reality we’ve also seen a lot of projects in which real... | 12 | 6 | [
{
"comment_id": "6365286",
"author": "Lee",
"timestamp": "2021-07-18T10:02:33",
"content": "Just another toy. Highly doubt some one would really use it to control their smart home all the time with it. “Dang it, I left the kitchen light on. Let me go fire up Minecraft to turn it off.”",
"parent_... | 1,760,373,014.396731 | ||
https://hackaday.com/2021/07/17/png-image-decoding-library-does-it-with-minimal-ram/ | PNG Image Decoding Library Does It With Minimal RAM | Donald Papp | [
"Arduino Hacks",
"Microcontrollers"
] | [
"arduino",
"decoding",
"display",
"image decoding",
"microcontrollers",
"png",
"png format"
] | Want to display a PNG file on a display attached to an Arduino or other microcontroller board? You’ll want to look at [Larry Bank]’s
PNGdec, the Arduino-friendly PNG decoder library
which makes it much easier to work with PNG files on your chosen microcontroller.
The PNG image format supports useful features like lossl... | 11 | 4 | [
{
"comment_id": "6365248",
"author": "Jon",
"timestamp": "2021-07-18T03:53:09",
"content": "zlib streams take a fair bit of memory to decompress. From the zlib tech page:inflate memory usage (bytes) = (1 << windowBits) + 1440*2*sizeof(int)I think it would be possible to make something similar to a P... | 1,760,373,014.349157 | ||
https://hackaday.com/2021/07/17/cnc-saves-water-cooling-setup/ | CNC Saves Water Cooling Setup | Al Williams | [
"cnc hacks",
"computer hacks"
] | [
"cnc",
"delidding",
"liquid cooling",
"water cooling"
] | A classic problem. You have a new CPU and a 15-year old water cooling system. Of course, the bracket doesn’t fit. Time to buy a new cooler? Not if you are [der8auer]. You design a new bracket and
mill it out of aluminum
.
Honestly, it might seem overkill, but it makes sense. After all, no matter how new the CPU is, usi... | 9 | 4 | [
{
"comment_id": "6365269",
"author": "hartl",
"timestamp": "2021-07-18T06:16:38",
"content": "“We have to wonder if CPUs will eventually have liquid cooling fittings integrated into the package. Maybe one day.”Mainframes had this feature for decades and IBM is taking it to the next level:https://the... | 1,760,373,014.298116 | ||
https://hackaday.com/2021/07/17/reinvented-retro-contest-winners-announced/ | Reinvented Retro Contest Winners Announced | Kristina Panos | [
"contests",
"Retrocomputing"
] | [
"Reinvented Retro Contest",
"winners"
] | Good news, everyone! The results of
the Reinvented Retro contest
are in, and the creators of these three groovy projects have each won a $200 online shopping spree to Digi-Key. We asked you to gaze deeply into your stuff piles and come up with a way to modernize a cool, old piece of hardware, and we left it up to you t... | 7 | 4 | [
{
"comment_id": "6365213",
"author": "Michael",
"timestamp": "2021-07-17T22:42:39",
"content": "Too bad these prizes can’t keep up with inflation..$200 is worth about $65 in our new normal.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6365218",
"au... | 1,760,373,014.254093 | ||
https://hackaday.com/2021/07/19/3d-print-in-the-air-with-a-little-software-support/ | 3D Print In The Air With A Little Software Support | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"gcode",
"overhang"
] | We all love 3D printing, but printing anything that has an overhang requires support, right? Maybe not. [Create Inc] has a video showing some 3D prints that
seem to hang impossibly in the air
— not bridges, but loops just floating in the air. You can see the effect in the video below.
The first part of the post covers ... | 11 | 5 | [
{
"comment_id": "6365562",
"author": "Alice Lalita Heald",
"timestamp": "2021-07-19T11:27:01",
"content": "So the trick to print in mid air with Cura is to move slow and 100% fan?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6365591",
"author": "Cr... | 1,760,373,014.441842 | ||
https://hackaday.com/2021/07/19/improving-cheap-sdr-antennas/ | Improving Cheap SDR Antennas | Al Williams | [
"Radio Hacks"
] | [
"antenna",
"RTLSDR",
"sdr"
] | [VK3YE] knows there are at least two things wrong with the cheap antennas you get with most SDR dongles. First, they are too short. You’d like to have enough to pull out a quarter wavelength on the longest frequency you want to operate. The second problem is there’s no real ground. He
fixed both of these problems
, as ... | 18 | 6 | [
{
"comment_id": "6365543",
"author": "Marcus",
"timestamp": "2021-07-19T08:53:58",
"content": "> just bite the bullet and build something that looks like it belongs in a movie.But that’s for circular polarization; unless you want to do something with satellites, or very specific directive microwave ... | 1,760,373,014.495491 | ||
https://hackaday.com/2021/07/18/its-super-easy-to-build-yourself-a-usb-c-variable-power-supply-these-days/ | It’s Super Easy To Build Yourself A USB-C Variable Power Supply These Days | Lewin Day | [
"Misc Hacks"
] | [
"power supply",
"psu",
"usb power bank",
"USB Type-C",
"USB-C PD"
] | Once upon a time, building yourself a power supply required sourcing all manner of components, from transformers to transistors, knobs, and indicators. These days, everything’s a bit more integrated which helps if you’re trying to whip something up in a hurry.
This build from [Ricardo] shows just how straightforward bu... | 29 | 12 | [
{
"comment_id": "6365511",
"author": "Dj Biohazard",
"timestamp": "2021-07-19T05:50:13",
"content": "That Amazon link is dead as a doornail :’)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6365558",
"author": "Ricardo",
"timestamp": "2021-0... | 1,760,373,014.658706 | ||
https://hackaday.com/2021/07/18/the-internet-on-a-casio-calculator/ | The Internet – On A Casio Calculator! | Jenny List | [
"Retrocomputing",
"Software Hacks"
] | [
"calculator",
"casio",
"Casio FX",
"SH4"
] | Over the years we’ve become used to seeing some impressive hacks of high-end calculator software and hardware, most often associated with the Z80-based models from Texas Instruments. But of course, TI are far from the only player in this arena. It’s nice for a change to see a Casio receiving some attention. The Casio f... | 12 | 8 | [
{
"comment_id": "6365473",
"author": "JWhitten",
"timestamp": "2021-07-19T02:17:54",
"content": "Shout out for SLIP… haven’t heard anybody mention that since the early 1990’s !! :-)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6365541",
"author": "... | 1,760,373,014.545411 | ||
https://hackaday.com/2021/07/18/hackaday-links-july-18-2021/ | Hackaday Links: July 18, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"agc",
"Apollo Guidance Computer",
"auction",
"chip shortage",
"crime",
"DSKY",
"feedback",
"Fractals",
"hackaday links",
"Hubble",
"Ingenuity",
"Legend of Zelda",
"mars",
"nes",
"nostalgia",
"semiconductor",
"shortage",
"smuggling",
"super mario 64",
"video"
] | Tell the world that something is in short supply, and you can bet that people will start reacting to that news in the ways that make the most sense to them — remember the toilet paper shortage? It’s the same with the ongoing semiconductor pinch, except that since the item in short supply is (arguably) more valuable tha... | 12 | 5 | [
{
"comment_id": "6365447",
"author": "Hirudinea",
"timestamp": "2021-07-18T23:13:50",
"content": "Well at least the chip smuggler strapped the chips to his legs and chest and didn’t try to smuggle them “internally”. Imagine what would happen when butt chip started to get a workout? PU!",
"parent... | 1,760,373,014.591672 | ||
https://hackaday.com/2021/07/18/faulty-electrolytic-caps-dont-always-look-bad/ | Faulty Electrolytic Caps Don’t Always Look Bad | Donald Papp | [
"Repair Hacks"
] | [
"badcaps",
"capacitors",
"psu",
"repair"
] | Old electrolytic capacitors are notorious for not working like they used to, but what exactly does a bad capacitor look like, and what kinds of problems can it cause? Usually bad caps leak or bulge, but not always. In [Zak Kemble]’s case, a bad cap
caused his Samsung HT-C460 Home Cinema System to simply display “PROT” ... | 49 | 20 | [
{
"comment_id": "6365420",
"author": "George Chirtoaca",
"timestamp": "2021-07-18T20:22:21",
"content": "I had a similar Samsung home cinema with the same issue. I had to replace the ceramic capacitors, the red ones in the pictures.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,014.890672 | ||
https://hackaday.com/2021/07/18/midi-mouse-makes-marvelous-music/ | MIDI Mouse Makes Marvelous Music | Adam Zeloof | [
"Arduino Hacks",
"Musical Hacks"
] | [
"arduino",
"midi",
"mouse",
"music"
] | It’s an old misconception that digital musicians just use a mouse and keyboard for their art. This is often far from the truth, as many computer music artists have a wide variety of keyboards/synths, MIDI controllers, and “analog” instruments that all get used in their creative process. But what if one of those instrum... | 5 | 5 | [
{
"comment_id": "6365410",
"author": "Nitpicker Smartyass",
"timestamp": "2021-07-18T19:32:28",
"content": "Nice – however, not “new” except for the more modern build. Amiga mouses/mice have been turned into midi controllers in the 1980s/1990s, just as (analogue!) joysticks were used to control midi... | 1,760,373,015.124748 | ||
https://hackaday.com/2021/07/17/tales-from-the-global-chip-shortage-smoothieboard/ | Tales From The Global Chip Shortage: Smoothieboard | Stephen Ogier | [
"cnc hacks",
"hardware",
"News"
] | [
"chip shortage",
"cnc",
"manufacturing",
"smoothieboard"
] | The semiconductor shortage sparked by the pandemic is showing no signs of slowing down. Although auto manufacturers were some of the first affected, the shortage has now spread and is impacting all sorts of projects, including the
Smoothieboard open-source CNC controllers.
[Chris Cecil] walks through the production woe... | 27 | 11 | [
{
"comment_id": "6365152",
"author": "Arthur Wolf",
"timestamp": "2021-07-17T17:15:02",
"content": "I’m nearly done writing an update to the kickstarter about this. I keep pushing it to later because of work and constant new developments, but now that HaD has made an article about this, it’s the rig... | 1,760,373,014.95843 | ||
https://hackaday.com/2021/07/17/open-source-is-choice/ | Open Source Is Choice | Elliot Williams | [
"Hackaday Columns",
"Rants",
"Software Development"
] | [
"alternatives",
"audacity",
"newsletter",
"open source"
] | If you haven’t been following along with the licensing kerfuffle surrounding the open-source Audacity audio editing software,
take a sec to read Tom Nardi’s piece and get up to speed
. The short version is that a for-profit company has bought the trademark and the software, has announced plans to introduce telemetry wh... | 79 | 19 | [
{
"comment_id": "6365091",
"author": "Ostracus",
"timestamp": "2021-07-17T14:05:33",
"content": "“But for those of us in the know, it’s just more choice. And that’s good, right?”Sometimes.https://www.usertesting.com/blog/how-to-use-the-paradox-of-choice-in-ux-design",
"parent_id": null,
"dep... | 1,760,373,015.085143 | ||
https://hackaday.com/2021/07/17/soviet-scientific-calculator-gives-up-its-cold-war-era-secrets/ | Soviet Scientific Calculator Gives Up Its Cold War-Era Secrets | Dan Maloney | [
"Retrocomputing"
] | [
"calculator",
"MK-52",
"programmable",
"RPN",
"russia",
"soviet"
] | Say what you want about Soviet technology, but you’ve got to admit there was a certain style to Cold War-era electronics. Things were perhaps not as streamlined and sleek as their Western equivalents, but then again, just look at the Nixie tube craze to see where collectors and enthusiasts stand on that comparison.
One... | 17 | 8 | [
{
"comment_id": "6365075",
"author": "William J Steele",
"timestamp": "2021-07-17T12:05:22",
"content": "You can still buy these NOS today. Check eBay for them… Cost about $15 + shipping.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6365266",
"aut... | 1,760,373,015.252267 | ||
https://hackaday.com/2021/07/17/finding-fractals-in-the-1930s/ | Finding Fractals In The 1930’s | Matthew Carlson | [
"Retrocomputing",
"Video Hacks"
] | [
"1930s",
"analog fractals",
"codeparade",
"fractal",
"Fractals",
"projector"
] | The mesmerizing properties of fractals are surprising as their visual complexity often arises from simple equations. [CodeParade] set out to show how simple a fractal is
by creating them using technology from the 1930s
. The basic idea is based on projectors and cameras, which were both readily available and widely use... | 22 | 11 | [
{
"comment_id": "6365042",
"author": "James",
"timestamp": "2021-07-17T08:44:31",
"content": "Also known as two mirrors facing each other",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6365044",
"author": "Joshua",
"timestamp": "2021-07-17T09:16:59",
... | 1,760,373,015.366666 | ||
https://hackaday.com/2021/07/16/fixing-joy-con-drift-with-recycle-bin-parts/ | Fixing Joy-Con Drift With Recycle Bin Parts | Kristina Panos | [
"News",
"Nintendo Hacks"
] | [
"cardboard",
"joy-con",
"joy-con drift",
"nintendo",
"switch"
] | Have you seen this yet? YouTuber [VK’s Channel]
claims to have a permanent fix for Joy-Con drift
— the tendency for Nintendo Switch controllers to behave as though they’re being moved around when they’re not even being touched. Like everyone else, [VK’s Channel] tried all the usual suspects: compressed air, isopropyl a... | 16 | 8 | [
{
"comment_id": "6365017",
"author": "Fosselius",
"timestamp": "2021-07-17T05:22:07",
"content": "Now, this is a hack, its great that he took his time to figure out why the fix works.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6365028",
"author":... | 1,760,373,015.3038 | ||
https://hackaday.com/2021/07/16/interpreters-in-scala/ | Interpreters In Scala | Al Williams | [
"Software Development"
] | [
"interpreter",
"lexer",
"parser",
"scala"
] | You might think of interpreters as only good for writing programs. Many people learned programming on some kind of interpreter — like BASIC — because you get immediate feedback and don’t have to deal with the complexities of a compiler. But interpreters can have other uses like parsing configuration files, for example.... | 15 | 3 | [
{
"comment_id": "6365010",
"author": "localroger",
"timestamp": "2021-07-17T03:11:09",
"content": "Using a lexer and parser is NOT how you are supposed to do it. I know someone who did it that way and made a miserably slow and almost unusable industrial device that way, which nobody could figure ou... | 1,760,373,015.465397 | ||
https://hackaday.com/2021/07/16/a-cheap-dipole-antenna-from-an-extension-cord/ | A Cheap Dipole Antenna From An Extension Cord | Al Williams | [
"Radio Hacks"
] | [
"antenna",
"dipole",
"ham radio",
"radio",
"sdr",
"wire"
] | Dipoles are a classic builder’s antenna, after all they are usually little more than two pieces of wire and a feedline. But as [Rob] shows us in the video below,
there are a few things to consider
.
The first thing is where to get the wire. A damaged extension cord donated the wire. That’s actually an interesting idea ... | 12 | 10 | [
{
"comment_id": "6364975",
"author": "Jul13",
"timestamp": "2021-07-16T23:28:35",
"content": "Although the title says “free dipole” …No. No it doesn’t.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6364976",
"author": "Jul13",
"timestamp": "... | 1,760,373,015.414957 | ||
https://hackaday.com/2021/07/16/cracking-a-gba-game-with-nsa-tools/ | Cracking A GBA Game With NSA Tools | Bryan Cockfield | [
"Software Hacks"
] | [
"game boy advance",
"Ghidra",
"kaiju",
"kong",
"level",
"nsa",
"password",
"reverse engineering",
"software"
] | [Wrongbaud] is a huge fan of Japanese kaiju-style movies, including Godzilla and King Kong. In honor of the release of a new movie, he has decided to tackle a few projects to see how both of these monsters can hold their own against other legendary monsters. In this project, he is using Ghidra, named after another lege... | 1 | 1 | [
{
"comment_id": "6364830",
"author": "Hirudinea",
"timestamp": "2021-07-16T15:14:24",
"content": "Come, you didn’t title the article “Ghidra vs. King Kong!”!? Now that’s just a missed opportunity.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,373,015.504065 | ||
https://hackaday.com/2021/07/16/repair-hack-saves-tesla-owner-from-massive-bill/ | Repair Hack Saves Tesla Owner From Massive Bill | Dan Maloney | [
"Transportation Hacks"
] | [
"automotive",
"battery. cooling",
"mechanic",
"model 3",
"repair",
"right to repair",
"tesla"
] | As expensive as a new car is, it almost seems like a loss leader now to get you locked into exorbitantly expensive repairs at the dealership’s service department. That’s the reason a lot of us still try to do as much of the maintenance and repairs on our cars as possible — it’s just too darn expensive to pay someone el... | 74 | 19 | [
{
"comment_id": "6364703",
"author": "ian 42",
"timestamp": "2021-07-16T08:30:48",
"content": "It just shows that the whole electronic car thing is like mobile phones – not made to be repaired, and just buy a new one very few years.. Seehttps://hackaday.com/2021/07/15/recycling-will-be-key-to-the-el... | 1,760,373,015.610243 | ||
https://hackaday.com/2021/07/15/analog-camera-goes-digital/ | Analog Camera Goes Digital | Bryan Cockfield | [
"digital cameras hacks",
"Raspberry Pi"
] | [
"analog",
"camera",
"digital",
"film",
"lens",
"raspberry pi",
"retro",
"sensor",
"video",
"wireless"
] | The digital camera revolution swept through the world in the early 2000s, and aside from some unique situations and a handful of artists still using film, almost everyone has switched over to digital since then. Unfortunately that means that there’s a lot of high quality film cameras in the world that are gathering dus... | 33 | 17 | [
{
"comment_id": "6364659",
"author": "Ali",
"timestamp": "2021-07-16T05:11:51",
"content": "https://alinacierdem.com/raspberry-pi-film-camera/I did a similar thing back then but never had time to document it. I think it is collecting dust on some of my junk shelves. The most difficult part is dealin... | 1,760,373,015.678937 | ||
https://hackaday.com/2021/07/15/you-are-doomed-to-learn-webassembly/ | You Are Doomed To Learn WebAssembly | Al Williams | [
"Software Hacks"
] | [
"doom",
"wasm",
"webasm",
"webassembly"
] | At first, Web browsers displayed HTML pages. But then people wanted those pages to do something. So we got — among other things — JavaScript. Then people wanted to do super complicated and compute-intensive things. So now we have WebAssembly. If you want to learn it, [diekmann] has
a 4-part series that covers everythin... | 37 | 8 | [
{
"comment_id": "6364636",
"author": "Drone",
"timestamp": "2021-07-16T03:13:50",
"content": "@Al Williams said: “So now we have Web Assembly.”Erm… Web Assembly > WebAssembly, no space.[1]1. WebAssembly (abbreviated Wasm) is a binary instruction format for a stack-based virtual machine.https://webas... | 1,760,373,016.455939 | ||
https://hackaday.com/2021/07/15/overdriving-vacuum-tubes-and-releasing-the-magic-light-within/ | Overdriving Vacuum Tubes And Releasing The Magic Light Within | Dan Maloney | [
"classic hacks",
"Misc Hacks"
] | [
"anode",
"cathode",
"high voltage",
"plates",
"thermionic",
"vacuum tube",
"valve"
] | We’ve all seen electronic components that have been coaxed into releasing their small amount of Magic Smoke, which of course is what makes the thing work in the first place. But back in the old times, parts were made of glass and metal and were much tougher — you could do almost anything to them and they wouldn’t relea... | 53 | 19 | [
{
"comment_id": "6364602",
"author": "Craig W Hildreth",
"timestamp": "2021-07-15T23:16:11",
"content": "It is sad to see people deliberately ruin things that aren’t made anymore. It must be a youtube thing to get clicks (and revenue) above all else. Major thumbs down on this one. I’d say if red... | 1,760,373,015.9234 |
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