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https://hackaday.com/2019/10/27/making-a-bronze-cannon-from-scratch/ | Making A Bronze Cannon From Scratch | Danie Conradie | [
"Weapons Hacks"
] | [
"cannon",
"craftsmanship",
"diy casting",
"lathe",
"metal casting",
"woodworking"
] | Casting metal at home is somewhat tricky, but there’s no denying the results can be quite rewarding. [FarmCraft101] put his incredible craftsmanship on display, and learned a few new things in the process, by
scratch building a scale replica bronze cannon and carriage
.
Starting with a sufficient quantity of scrap meta... | 18 | 5 | [
{
"comment_id": "6190596",
"author": "jrfl",
"timestamp": "2019-10-28T06:38:55",
"content": "Worth mentioning is that youtube has basically shut this project down, and the only things you will find on youtube are talking about a ‘non-functional replica’ cannon.the rest of the videos in the series ar... | 1,760,373,707.323628 | ||
https://hackaday.com/2019/10/27/pulling-display-data-off-of-a-fitness-tracker/ | Pulling Display Data Off Of A Fitness Tracker | Gerrit Coetzee | [
"Wearable Hacks"
] | [
"android app",
"Arduino IDE",
"ble",
"custom firmware",
"D6",
"fitness tracker"
] | [Aaron Christophel] writes in with yet another clever hack for his D6 Fitness Tracker. Using OpenOCD and Pygame, he shows how you can
pull data right off the tracker’s screen
and sent it to the computer.
This one appealed to us for its brevity. First [Aaron] launches the OpenOCD server which connects to the D6. Then, a... | 1 | 1 | [
{
"comment_id": "6190626",
"author": "Michał Margula",
"timestamp": "2019-10-28T09:11:19",
"content": "That guy amazes me with his ingenuity, real hacker indeed.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,373,707.357908 | ||
https://hackaday.com/2019/10/27/hackaday-links-october-27-2019/ | Hackaday Links: October 27, 2019 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"6502",
"apocalypse",
"archive",
"challenge",
"contest",
"MOS",
"phreaking",
"Plutonium",
"puzzle",
"RTG",
"Terry Holdt",
"vampire"
] | A year ago,
we wrote
about the discovery of treasure trove of original documentation from the development of the MOS 6502 by Jennifer Holdt-Winograd, daughter of
the late
Terry Holdt, the original program manager on the project. Now, Ms. Winograd has created
a website to celebrate the 6502 and the team that built it
. ... | 13 | 3 | [
{
"comment_id": "6190555",
"author": "Arduino Enigma",
"timestamp": "2019-10-28T00:01:05",
"content": "If you enter the right value, the page redirects to another unlisted youtube video with 30 views that requires audio processing tools. plenty of beeps and boops on that one. DM on IG if interested.... | 1,760,373,707.178727 | ||
https://hackaday.com/2019/10/27/drop-in-motor-converts-car-to-ev/ | Drop In Motor Converts Car To EV | Al Williams | [
"Engine Hacks"
] | [
"crate engine",
"crate motor",
"electric vehicle",
"ev",
"mini"
] | With the latest craze of electric vehicles, it might be tempting to take an old project car and convert it from gas to electric. On the surface, it sounds simple, but the reality is there are a number of pitfalls. It would be nice if you could find a drop in engine replacement that was ready to go. According to
Swindon... | 42 | 17 | [
{
"comment_id": "6190515",
"author": "Karlotta Harrumphed",
"timestamp": "2019-10-27T20:11:26",
"content": "+79k? I pack tour bacon?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6190516",
"author": "Marcos",
"timestamp": "2019-10-27T20:33:2... | 1,760,373,707.438437 | ||
https://hackaday.com/2019/10/27/a-dancing-cowboy-nixie-tube/ | A Dancing Cowboy Nixie Tube | Jenny List | [
"Parts"
] | [
"glassblowing",
"nixie",
"vacuum tube"
] | If there were four words you never expected to hear in sequence, they would probably be “Dancing cowboy Nixie tube”. But
that’s just what [Glasslinger] has made
, and it’s exactly what it sounds like – an encapsulated cowboy that dances.
We’ve placed the resulting video below the break, and in it we see a compelling to... | 10 | 6 | [
{
"comment_id": "6190495",
"author": "Nitpicker Smartyass",
"timestamp": "2019-10-27T18:46:21",
"content": "What a beautiful, wondersome, aweaspiring waste of time. I love it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6190498",
"author": "Mechanicus",... | 1,760,373,707.12505 | ||
https://hackaday.com/2019/10/27/reverse-engineering-a-two-wire-intercom/ | Reverse Engineering A Two-Wire Intercom | Jenny List | [
"Tech Hacks"
] | [
"intercom",
"reverse engineering",
"serial"
] | There was a time when an intercom was simply a pair of boxes with speakers joined by a couple of wires, with an audio amplifier somewhere in the mix. But intercoms have like everything else joined the digital age, so those two wires now carry a load of other functionality as digital signalling. [Aaron Christophel] inst... | 13 | 8 | [
{
"comment_id": "6190443",
"author": "some guy",
"timestamp": "2019-10-27T14:50:08",
"content": "TL;DWThe basic idea seems to be to encode 1/0 as short/long drop in supply voltage.quote:#define startBit 6//ms#define oneBit 4//ms#define zeroBit 2//ms",
"parent_id": null,
"depth": 1,
"repl... | 1,760,373,707.225259 | ||
https://hackaday.com/2019/10/27/restoring-a-rusty-rebar-cutter/ | Restoring A Rusty Rebar Cutter | Dan Maloney | [
"Repair Hacks",
"Tool Hacks"
] | [
"compound",
"cutter",
"leverage",
"machining",
"metalwork",
"rebar",
"repair",
"restoration",
"teardown",
"tool"
] | We’ve all probably come across hunks of junk that used to be tools, long-neglected and chemically welded into a useless mass of solid rust. Such items are available for a pittance at the local flea market, or more likely found in an old barn or rotting on a junk pile. They appear to be far beyond salvage, but with the ... | 16 | 5 | [
{
"comment_id": "6190431",
"author": "johnrpm",
"timestamp": "2019-10-27T14:19:17",
"content": "I have used similar cutters, re-bar is tough stuff, the handle was very long, it needed to be to get leverage, it also needed to be well secured to a strong floor.",
"parent_id": null,
"depth": 1,... | 1,760,373,707.578117 | ||
https://hackaday.com/2019/10/27/turntable-spins-color-and-sound-together/ | Turntable Spins Color And Sound Together | Erin Pinheiro | [
"Musical Hacks"
] | [
"art",
"color sensor",
"hacked turntable",
"midi",
"midi sequencer",
"music",
"Teensy",
"turntable"
] | If you can’t grow your own synesthesia, buying electronics to do it for you is fine. Such is the case with
the CHROMATIC
by [Xavier Gazon], an artist who turns all kinds of electronics into circuit-bent musical art pieces. His project turns an old Philips Music 5120 turntable into a colorful MIDI sequencer, inspired by... | 5 | 3 | [
{
"comment_id": "6190479",
"author": "Piecutter",
"timestamp": "2019-10-27T17:44:14",
"content": "The new Playskool Programmable Orchestra Turntable!Love it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6190514",
"author": "RP",
"timestamp": "2019-10... | 1,760,373,707.26802 | ||
https://hackaday.com/2019/10/27/an-all-electric-plane-takes-to-the-skies/ | An All-Electric Plane Takes To The Skies | Sharon Lin | [
"green hacks",
"Transportation Hacks"
] | [
"electric plane",
"electric vehicle",
"plane"
] | With climate protests and airline strikes occurring around the world, there is more awareness than ever before for the necessity of environmental sustainability. More importantly, there is more discussion around the immense carbon footprint left by the airline industry, perhaps one of the largest contributors to climat... | 89 | 27 | [
{
"comment_id": "6190361",
"author": "Jan",
"timestamp": "2019-10-27T08:18:15",
"content": "“…and zero CO2 emissions”should that not be “the POTENTIAL of zero CO2 emissions”, unless it can be guaranteed that the plane is only charged by sources that supply CO2 emission free energy. A thing that’s ea... | 1,760,373,707.701498 | ||
https://hackaday.com/2019/10/26/horse-racing-game-hits-trifecta-of-fun-skill-and-competition/ | Horse Racing Game Hits Trifecta Of Fun, Skill, And Competition | Kristina Panos | [
"Games",
"Misc Hacks"
] | [
"capacitor",
"electromechanical",
"horse racing",
"horsin' around"
] | Out in the neon-painted desert of Las Vegas, if you know where to look, you can find an old, 1980s electromechanical horse racing game called Sigma Derby. In this group game, you and several drunk strangers sit around a machine the size of a pool table and bet on tiny horses at 25 cents a throw. There is no skill invol... | 4 | 3 | [
{
"comment_id": "6190377",
"author": "Stuart Longland",
"timestamp": "2019-10-27T09:31:58",
"content": "Just in time for Melbourne Cup Day.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6190401",
"author": "Andy",
"timestamp": "2019-10-27T11:28:15",
... | 1,760,373,707.746007 | ||
https://hackaday.com/2019/10/26/its-a-tv-scope-guitar-amplifier/ | It’s A TV-Scope-Guitar Amplifier! | Jenny List | [
"classic hacks",
"Musical Hacks"
] | [
"amplifier",
"audio visualizer",
"CRT TV",
"guitar amp",
"lm386",
"tv"
] | Guitar amplifiers are a frequent project, and despite being little more than a simple audio amplifier on paper, they conceal a surprising quantity of variables in search of a particular sound. We’ve seen a lot of them, but never one quite like [Nate Croson]’s
CRT TV guitar amplifier
. The LM386 doesn’t just drive the s... | 8 | 5 | [
{
"comment_id": "6190328",
"author": "RP",
"timestamp": "2019-10-27T02:39:31",
"content": "I made several of these as a teenager by rotating the yoke. In hind site, assuming the windings were the same, it would’ve been simpler to just swap the vertical and horizontal connections but i never did it ... | 1,760,373,708.079305 | ||
https://hackaday.com/2019/10/26/lego-and-minecraft-team-up-for-custom-gaming-pc-case/ | LEGO And Minecraft Team Up For Custom Gaming PC Case | Dan Maloney | [
"computer hacks",
"Toy Hacks"
] | [
"block",
"Case mod",
"gaming",
"Intel NUC",
"lego",
"minecraft",
"pc"
] | There are probably few parents who haven’t watched their kids sitting on the floor, afloat on a sea of LEGO pieces and busily creating, and thought, “If only they could make a living at that.” But time goes on and kids grow up, and parents soon sing the same refrain as the kids sit transfixed by the virtual equivalent ... | 4 | 2 | [
{
"comment_id": "6190311",
"author": "Dan",
"timestamp": "2019-10-27T01:29:09",
"content": "Built of vertical stacks of 1x1s, with no 1×2 tie ins to an internal support frame? Ugh. Amateur hour",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6190315",
... | 1,760,373,708.032236 | ||
https://hackaday.com/2019/10/26/proprietary-fan-blows-gets-pwm-upgrade/ | Proprietary Fan Blows, Gets PWM Upgrade | Bryan Cockfield | [
"computer hacks",
"Parts"
] | [
"computer",
"cooling fan",
"cpu",
"dell",
"heat",
"proprietary",
"pwm",
"thermistor"
] | Proprietary components are the bane of anyone who dares to try and repair their own hardware. Nonstandard sizes, lack of labeling or documentation, and unavailable spare parts are all par for the course. [Jason] was unlucky enough to have an older Dell computer with a broken, and proprietary, cooling fan on it and had ... | 13 | 7 | [
{
"comment_id": "6190265",
"author": "Torsten Martinsen",
"timestamp": "2019-10-26T21:51:19",
"content": "You have that the wrong way around. He replaced a standard 4-wire fan with a properietary 3-wire fan, because he happened to have it lying around.",
"parent_id": null,
"depth": 1,
"r... | 1,760,373,708.133109 | ||
https://hackaday.com/2019/10/26/collapse-os-an-os-for-when-the-unthinkable-happens/ | Collapse OS, An OS For When The Unthinkable Happens | Jenny List | [
"Retrocomputing"
] | [
"disaster",
"os",
"post-apocalyptic",
"z80"
] | Decades of post-apocalyptic Hollywood movies have taught us that once all the trappings of our civilisation have been stripped away, it’s going to be kinda cool. We’re all going to wear slightly dusty looking 1980s motorcycling gear, and we’re going to drive
really
cool cars. Except of course
Mad Max
is fantasy, and th... | 180 | 36 | [
{
"comment_id": "6190182",
"author": "kahoover",
"timestamp": "2019-10-26T17:10:47",
"content": "Begging the question of how your new OS will assist you in raising potatoes.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6190240",
"author": "mathman"... | 1,760,373,708.504932 | ||
https://hackaday.com/2019/10/26/laser-toy-keeps-cats-entertained/ | Laser Toy Keeps Cats Entertained | Lewin Day | [
"Misc Hacks"
] | [
"cat",
"laser"
] | Cats are among the most popular domesticated creatures, and their penchant for chasing laser pointers is well known. With a pair of felines of his own to look after,
[Tobi] set about making a device to help keep them entertained.
The aim of the device is to automate the motion of a laser pointer to make playing with th... | 13 | 7 | [
{
"comment_id": "6190174",
"author": "Enrique Koll",
"timestamp": "2019-10-26T15:57:59",
"content": "Would a cat, or dog, be equilly happy if nurtured by a robot who does all the human things a pet desires? Maybe even more if the robot has no other occupation than the pet. Wouldn’t be too hard of an... | 1,760,373,708.182226 | ||
https://hackaday.com/2019/10/26/hand-made-drum-carder-gets-wool-ready-for-spinning/ | Hand-Made Drum Carder Gets Wool Ready For Spinning | Bryan Cockfield | [
"Tool Hacks"
] | [
"carder",
"carding",
"drum",
"fibers",
"processing",
"spinning",
"wool",
"yarn"
] | Making a natural fiber like wool into something useful like a sweater involves a lot of steps. We might be familiar with shearing the sheep, spinning the wool into yarn, or knitting and weaving, but between shearing and spinning there’s another unfamiliar process you’ll have to go through. Known as carding, it helps al... | 14 | 8 | [
{
"comment_id": "6190158",
"author": "Ren",
"timestamp": "2019-10-26T13:25:58",
"content": "(2nd video)Nice mix of old and new tools!What wood did he use for bearings?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6190171",
"author": "reg",
"timestam... | 1,760,373,708.294065 | ||
https://hackaday.com/2019/10/26/building-the-worlds-best-dml-speakers-for-under-115/ | Building The World’s Best DML Speakers For Under $115 | Sharon Lin | [
"News"
] | [] | Flat panel speakers are heavily reliant on the material they’re mounted on for the best acoustic quality. In particular, for DML (distributed mode loudspeaker) speakers, sound is produced through the distribution of vibration modes in the panel. You can easily spend far too much on special exciter foam or optimized mat... | 35 | 13 | [
{
"comment_id": "6190145",
"author": "Alan Hightower",
"timestamp": "2019-10-26T10:25:35",
"content": "It seems like active eq to counter the panel’s frequency response would be the best way to mitigate the non-uniform response. A cheap DSP like an ADAU1701 would be an ideal choice.. Sigma Studio e... | 1,760,373,708.674815 | ||
https://hackaday.com/2019/10/25/pelican-case-becomes-thumping-bluetooth-speaker/ | Pelican Case Becomes Thumping Bluetooth Speaker | Lewin Day | [
"classic hacks"
] | [
"bluetooth speaker",
"pelican case"
] | Pelican cases are great if you need a rugged enclosure to protect some sensitive gear. They’re also highly moddable,
and can make a great base for a Bluetooth speaker build
.
Like many modern builds, this is very much a case of wiring together a series of off-the-shelf modules into a larger whole. A Tinyshine Bluetooth... | 5 | 3 | [
{
"comment_id": "6190121",
"author": "arthurptj",
"timestamp": "2019-10-26T05:19:53",
"content": "That really doesn’t look like a waterproof power switch",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6190123",
"author": "Sooner Boomer",
"timestamp": "... | 1,760,373,708.230469 | ||
https://hackaday.com/2019/10/25/haptic-glove-controls-robot-hand-wirelessly/ | Haptic Glove Controls Robot Hand Wirelessly | Al Williams | [
"Arduino Hacks",
"Robots Hacks"
] | [
"arduino",
"glove",
"hand",
"nRF24L01+",
"robot hand",
"robotic hand",
"servo"
] | [Miller] wanted to practice a bit with some wireless modules and wound up creating a
robotic hand he could teleoperate with the help of a haptic glove
. It lookes highly reproducible, as you can see the video, below the break.
The glove uses an Arduino’s analog to digital converter to read some flex sensors. Commercial... | 0 | 0 | [] | 1,760,373,708.599574 | ||
https://hackaday.com/2019/10/25/beat-the-streets-with-this-text-spraying-robot/ | Beat The Streets With This Text Spraying Robot | Sharon Lin | [
"Arduino Hacks"
] | [
"Arduino Uno",
"pwm",
"servo motors",
"spray paint"
] | In the midst of striking for climate change awareness, you may need some extra hands. That’s what [Anred Zynch] thought when they built
Strettexter
, the text-spraying writing robot that sprays onto streets.
The machine is loaded with 8 spray cans placed into a wooden box (a stop line with a wooden ledge to prevent the... | 25 | 12 | [
{
"comment_id": "6190098",
"author": "smellsofbikes",
"timestamp": "2019-10-25T23:21:37",
"content": "One reason I lovedhttps://hackaday.com/2014/08/29/the-chalkjet-an-ink-jet-printer-for-the-streets/so much was precisely because since it’s chalk, it washes away.Project: now dangle this linear spray... | 1,760,373,708.565543 | ||
https://hackaday.com/2019/10/25/a-visual-infrared-thermometer-that-runs-off-your-laptop/ | A Visual Infrared Thermometer That Runs Off Your Laptop | Sharon Lin | [
"computer hacks",
"digital cameras hacks"
] | [
"diy infrared camera",
"thermal camera",
"usb"
] | A common measurement for circuits is heat dissipation inspection. While single point thermometers do the trick, they can be quite annoying to use. Meanwhile, a thermal imaging camera is often out of the budget for hobbyists. How about building your own
visual thermometer
for cheap? That’s what [Thomas Fischl] decided t... | 4 | 3 | [
{
"comment_id": "6189923",
"author": "Thinkerer",
"timestamp": "2019-10-25T11:35:22",
"content": "Although thermopile sensors like this suffer in resolution compared to the (heavily patent-protected) microbolometer sensors that FLIR et al use, we’ve found that you can actually get a bit more utility... | 1,760,373,708.973314 | ||
https://hackaday.com/2019/10/24/faux-cow-munches-faux-grass-on-a-faux-roomba/ | Faux Cow Munches Faux Grass On A Faux Roomba | Anool Mahidharia | [
"Art",
"Raspberry Pi"
] | [
"art",
"python",
"Raspbery PI",
"robot",
"roomba",
"rover"
] | Out in the countryside, having a cow or
to
two wouldn’t be a big deal. You can have a cattle shed full of them, and no one will bat an eyelid. But what if you’re living in the big city and have no need of pet dogs or cats, but a pet cow. It wouldn’t be easy getting it to ride in the elevator, and you’d have a high chan... | 13 | 5 | [
{
"comment_id": "6189913",
"author": "profumple",
"timestamp": "2019-10-25T10:18:03",
"content": "Udderly sad. Cheesy. Funny in a twisted soft serve sense but only partially a-moooo zing.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6190045",
"au... | 1,760,373,708.930002 | ||
https://hackaday.com/2019/10/24/reverse-engineering-xiaomi-iot-firmware/ | Reverse-Engineering Xiaomi IoT Firmware | Sharon Lin | [
"Tech Hacks",
"Wireless Hacks"
] | [
"defcon",
"defcon26",
"iot village",
"reverse engineering",
"xiaomi"
] | IoT devices rarely ever just do what they’re advertised. They’ll almost always take up more space than they need to – on top of that, their processor and memory alone should be enough to run a multitude of other tasks while not necessarily compromising the task they were built to do.
That’s partially the motivation for... | 13 | 4 | [
{
"comment_id": "6189872",
"author": "drenehtsral",
"timestamp": "2019-10-25T04:42:20",
"content": "This is why I diskile the whole IOT trend (and smaetphone apps for websites which pressure you to download the app by crippling the mobile site once they produce an app). It seems that not a day goes ... | 1,760,373,709.02868 | ||
https://hackaday.com/2019/10/24/wiping-your-windscreen-to-the-beat/ | Wiping Your Windscreen To The Beat | Danie Conradie | [
"Musical Hacks",
"Transportation Hacks"
] | [
"arduino",
"car stereo",
"machine learning",
"music",
"neural network",
"raspberry pi"
] | Nothing spoils your mood quite like your windscreen wipers not feeling it when the beat drops. Every major car manufacturer is focused on trying to build the electric self driving vehicle for the masses, yet ignoring this very real problem. Well [Ian Charnas] is taking charge, and has successfully
slaved his car’s wipe... | 32 | 13 | [
{
"comment_id": "6189828",
"author": "ted",
"timestamp": "2019-10-24T23:28:04",
"content": "LONG AGO WHEN i WAS INSTALLING CAR RADIOS it was typical to snoop around and find a hot lead that switched with the battery and use that for the supply to the small Motorola $29.95 radio. In some European car... | 1,760,373,709.161081 | ||
https://hackaday.com/2019/10/24/esp8266-unlocks-hidden-features-in-sound-bar/ | ESP8266 Unlocks Hidden Features In Sound Bar | Tom Nardi | [
"home entertainment hacks",
"Microcontrollers"
] | [
"AD83586B",
"amplifier",
"audio hack",
"LG",
"sound bar"
] | It’s no secret that the hardware devices we buy are often more capable than their manufacturer leads on. Features hidden behind firmware locks are a common trick, as it allows companies to sell the same piece of gear as a different model by turning off certain capabilities. Luckily for us, these types of arbitrary limi... | 22 | 10 | [
{
"comment_id": "6189798",
"author": "Luke",
"timestamp": "2019-10-24T21:03:19",
"content": "“The datasheet says there’s support for user-defined equalizer settings, but no examples are given for how to actually do it. If anyone’s got a particular affinity for these sort of amplifier chips, now coul... | 1,760,373,709.091608 | ||
https://hackaday.com/2019/10/24/light-emitting-logic-gates-built-from-scratch/ | Light Emitting Logic Gates Built From Scratch | Sharon Lin | [
"LED Hacks"
] | [
"2019 Hackaday Prize",
"Hackaday Prize",
"led",
"logic gates",
"photoresistor"
] | What’s the weirdest computer you can think of? This one’s weirder.
[Dr. Cockroach] figured out a way to create an inverting NOT gate from just one LED and two resistors (one being a photo-resistor). The Dr. has since built AND, NAND, OR, NOR, XOR and XNOR gates, as well as a buffer,
incorporating light
into every logic... | 44 | 11 | [
{
"comment_id": "6189763",
"author": "YGDES",
"timestamp": "2019-10-24T18:39:08",
"content": "GG !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6189769",
"author": "CRImier",
"timestamp": "2019-10-24T18:53:47",
"content": "Yay for Dr. Cockroach! ... | 1,760,373,710.67508 | ||
https://hackaday.com/2019/10/24/how-power-over-ethernet-poe-works/ | How Power Over Ethernet (PoE) Works | Sharon Lin | [
"Hackaday Columns",
"Tech Hacks",
"Tool Hacks"
] | [
"office",
"power",
"power over ethernet"
] | A remote Ethernet device needs two things: power and Ethernet. You might think that this also means two cables, a beefy one to carry the current needed to run the thing, and thin little twisted pairs for the data. But no!
Power over Ethernet (PoE) allows you to transmit power and data over to network devices. It does t... | 25 | 8 | [
{
"comment_id": "6189756",
"author": "Dissy",
"timestamp": "2019-10-24T17:49:38",
"content": "Along with centralized power delivery is the benefit of centralized UPS batteries for backup.One beefy UPS is often cheaper and easier to maintain than X number of smaller UPS units scattered around.This al... | 1,760,373,710.585489 | ||
https://hackaday.com/2019/10/24/hang-ten-with-help-from-the-surf-window/ | Hang Ten With Help From The Surf Window | Bryan Cockfield | [
"Arduino Hacks"
] | [
"3d",
"arduino",
"conditions",
"forecast",
"magicseaweed",
"mega +wifi r3",
"surf",
"weather",
"window"
] | Unless you live in a special, unique place like Hawaii or Costa Rica it’s unlikely you’ll be able to surf every day. It’s not easy to plan surf sessions or even surf trips to most locations because the weather conditions will need to be just right. Not only the wave height (swell) but also the wind speed and direction,... | 6 | 5 | [
{
"comment_id": "6189724",
"author": "Ren",
"timestamp": "2019-10-24T16:05:48",
"content": "Even if the box was non-functional, it is beautiful woodwork!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6189782",
"author": "Julian Silden Langlo",
... | 1,760,373,710.509876 | ||
https://hackaday.com/2019/10/24/the-blessings-and-destruction-wrought-by-lead-over-millennia/ | The Blessings And Destruction Wrought By Lead Over Millennia | Maya Posch | [
"chemistry hacks",
"Featured",
"Medical Hacks",
"Original Art",
"Science"
] | [
"galena",
"lead",
"lead poisoning",
"lead safety",
"safety"
] | Everyone one of us is likely aware of what lead — as in the metal — is. Having a somewhat dull, metallic gray appearance, it occupies atomic number 82 in the periodic table and is among the most dense materials known to humankind. Lead’s low melting point and malleability even when at room temperature has made it a pop... | 120 | 30 | [
{
"comment_id": "6189693",
"author": "Jerry",
"timestamp": "2019-10-24T14:11:15",
"content": "I was in Japan last October, and while in Kyoto, I asked the Geisha for the history of the white makeup.She indicated “Back in the day, with candles for lights, the low lighting on a stage made normal skin ... | 1,760,373,711.069358 | ||
https://hackaday.com/2019/10/24/student-built-rocket-engine-packs-a-punch/ | Student-Built Rocket Engine Packs A Punch | Bryan Cockfield | [
"Transportation Hacks"
] | [
"amateur rocketry",
"boston",
"burpg",
"engine",
"iron lotus",
"liquid fuel",
"rocket",
"test",
"thrust",
"university"
] | A group of students at Boston University recently made a successful test of a powerful rocket engine intended for 100km suborbital flights.
Known as the Iron Lotus
(although made out of mild steel rather than iron), this test allowed them to perfect the timing and perfect their engine design (
also posted to Reddit
) w... | 30 | 13 | [
{
"comment_id": "6189641",
"author": "MvK",
"timestamp": "2019-10-24T11:05:37",
"content": "What is a lb*ft, looks like a curse word ?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6189648",
"author": "cliff claven",
"timestamp": "2019-10-24... | 1,760,373,710.746053 | ||
https://hackaday.com/2019/10/24/retro-hardware-plots-again-thanks-to-grbl-and-esp32/ | Retro Hardware Plots Again Thanks To Grbl And ESP32 | Dan Maloney | [
"cnc hacks"
] | [
"Atari 1020",
"cnc",
"ESP32",
"grbl",
"Grbl_ESP32",
"pen",
"plotter",
"unipolar stepper"
] | When it comes to building a new CNC machine, you’ve got a wide world of controller boards to choose from. Whether you’re building a 3D-printer or a CNC plasma cutter, chances are good you’ll find a controller that fits your needs and your budget. Not so much, though, when you want to add CNC to a pen plotter from the e... | 11 | 7 | [
{
"comment_id": "6189614",
"author": "Chris",
"timestamp": "2019-10-24T08:16:41",
"content": "Oh, I have the Tandy version of that. I didn’t realize they all used the same guts.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6189759",
"author": "Paul... | 1,760,373,710.889547 | ||
https://hackaday.com/2019/10/23/led-skirt-is-stealth-by-day-party-by-night/ | LED Skirt Is Stealth By Day, Party By Night | Lewin Day | [
"Wearable Hacks"
] | [
"led",
"LED skirt",
"skirt"
] | Versatility is always a boon in any outfit. [Mikaela Holmes] wanted to create a skirt that could be unassuming by day, but be the life of the party when the lights go down.
Her Day-To-Night Light Skirt achieves just that!
The build is one that should be achievable by anyone with basic dressmaking skills. White and lave... | 6 | 5 | [
{
"comment_id": "6189608",
"author": "Kyle K",
"timestamp": "2019-10-24T07:34:47",
"content": "Those are side firing LEDs. Intriguing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6189621",
"author": "RoGeorge",
"timestamp": "2019-10-24T08:56:59",
... | 1,760,373,711.253964 | ||
https://hackaday.com/2019/10/23/top-off-a-dry-electrolytic/ | Top Off A Dry Electrolytic | Al Williams | [
"Repair Hacks"
] | [
"capacitor",
"electrolyte",
"electrolytic",
"electrolytic capacitor"
] | Making a capacitor is pretty easy. Just get two conductors close together. The bigger area you can get and the closer you can get them, the bigger the capacitor you can make. [BigClive] found some fake capacitors that were supposed to be very high value, but weren’t. Taking them apart revealed the capacitors didn’t hav... | 10 | 4 | [
{
"comment_id": "6189582",
"author": "CRImier",
"timestamp": "2019-10-24T02:23:47",
"content": "Al Williams, it seems that you embedded a video with a timestamp in the link – it starts at 13 minutes. If that wasn’t intentional, you might want to remove the timestamp from the video embed link.I hoped... | 1,760,373,711.116604 | ||
https://hackaday.com/2019/10/23/a-double-hybrid-mini-lathe-from-scratch/ | A Double-Hybrid Mini-Lathe, From Scratch | Dan Maloney | [
"Tool Hacks"
] | [
"bearing",
"ChucK",
"headstock",
"lathe",
"pillow block",
"pulley",
"tailstock",
"treadle"
] | It’s a treadle lathe! No, it’s a power lathe! It’s a wood lathe! No, it’s a metal lathe! Actually,
[Uri Tuchman]’s homebrew lathe
is all of the above, and it looks pretty snazzy too.
To say that [Uri]’s creations are quirky is a bit of an understatement – birds, crustaceans, hands, and feet all appear repeatedly as mot... | 4 | 2 | [
{
"comment_id": "6189559",
"author": "Doug",
"timestamp": "2019-10-23T23:48:50",
"content": "Very Nice and creative making of a hobby lathe. I thought you did an excellent job working out the details . I will say I was worried a little about the foot operation at first and liked that you did use ... | 1,760,373,710.794159 | ||
https://hackaday.com/2019/10/25/24-hours-of-temperature-data-at-a-glance/ | 24 Hours Of Temperature Data At A Glance | Tom Nardi | [
"LED Hacks",
"Wireless Hacks"
] | [
"3d scan",
"7 segment LED display",
"environmental monitoring",
"Photogrammetry",
"temperature logging",
"weather station"
] | In an era where we can see the current temperature with just a glance at our smartphones, the classic “Time and Temp” gadget sitting on the desk doesn’t have quite the same appeal. The modern weather fanatic demands more data, which is where this
gorgeous full-day temperature display from [Richard] comes in
.
The displ... | 7 | 2 | [
{
"comment_id": "6190101",
"author": "jonmayo",
"timestamp": "2019-10-25T23:24:00",
"content": "I kinda want to do this now that I see it. My inferior Fahrenheit system would need a lot of extra 1’s digits to be added to this build. Or we’d need to put an end to the multiple 100F+ days I see a year.... | 1,760,373,710.842465 | ||
https://hackaday.com/2019/10/25/build-your-own-plasma-ball/ | Build Your Own Plasma Ball | Sharon Lin | [
"how-to"
] | [
"2019 Hackaday Prize",
"Hackaday Prize",
"high voltage",
"plasma",
"science"
] | The simple plasma ball – it graces science museums and classrooms all around the world. It shares a place with the Van de Graaf generator, with the convenient addition of spectacular
plasma rays
that grace its spherical surface. High voltage, aesthetically pleasing, mad science tropes – what would make a better DIY pro... | 20 | 9 | [
{
"comment_id": "6190036",
"author": "Alexander Wikström",
"timestamp": "2019-10-25T18:51:12",
"content": "“The availability of free electronics allows plasma to conduct electricity”But what if I were to not get my plasma ball for free, doesn’t it work then?Though, a fairly elegantly executed projec... | 1,760,373,712.621142 | ||
https://hackaday.com/2019/10/25/giant-leds-ruby-lasers-hologram-displays-and-other-cool-stuff-seen-at-maker-faire-rome/ | Giant LEDs, Ruby Lasers, Hologram Displays, And Other Cool Stuff Seen At Maker Faire Rome | Mike Szczys | [
"cons",
"Featured"
] | [
"2019 Maker Faire Rome",
"DIYson",
"ecg",
"giant led",
"hologram",
"jpl",
"LED cube",
"meetup",
"MFR",
"mold making",
"nasa",
"OSCAR",
"resin casting",
"rome",
"ruby laser",
"thermal camera"
] | Hackers from all over Europe descended upon Rome last weekend for the Maker Faire that calls itself the “European Edition”. This three-day event is one of the largest Maker Faires in the world — they had 27,000 school students from all over Italy and Europe attend on Friday alone.
This was held at Fiera Roma, a giganti... | 16 | 11 | [
{
"comment_id": "6190015",
"author": "Mic Shy",
"timestamp": "2019-10-25T17:31:10",
"content": "I thought it was a microphone! At first glance, the way the girl in the picture (from the summary, not the article) is holding the giant LED I thought it was a microphone at first.So.. why isn’t it? That... | 1,760,373,712.559511 | ||
https://hackaday.com/2019/10/25/hackaday-podcast-041-the-how-not-to-episode-of-rebreathers-chain-sprockets-hovercraft-and-data-logging/ | Hackaday Podcast 041: The “How Not To” Episode Of Rebreathers, Chain Sprockets, Hovercraft, And Data Logging | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | Hackaday Editors Mike Szczys and Elliot Williams shed some light on a true week of hacks. It seems as though all kinds of projects are doing this the “wrong” way this week and its delightful to see what they learn along the way. Hovercraft
can
work using the Coandă effect which uses the blowers on the outside. You
can
... | 4 | 2 | [
{
"comment_id": "6190044",
"author": "Luke",
"timestamp": "2019-10-25T19:18:09",
"content": "Would be interesting to see someone do a mechanical rig for cutting involute gears.It’s basically formed by wrapping a string around a cylinder, so if you could constrain something like a dremel tool along t... | 1,760,373,712.397097 | ||
https://hackaday.com/2019/10/25/tiny-cube-hosts-a-hearty-tube/ | Tiny Cube Hosts A Hearty Tube | Kerry Scharfglass | [
"cons",
"hardware"
] | [
"add-on",
"badge",
"boost converter",
"high voltage",
"minibadge",
"nixie",
"nixie tube",
"switching power supply"
] | Tiny PCBAs and glowy VFD tubes are like catnip to a Hackaday writer, so when we saw [hamster]’s
TubeCube tube segment driver
we had to dig in to learn more. We won’t bury the lede here; let’s enjoy a video of glowing tubes before we go further:
https://hackaday.com/wp-content/uploads/2019/10/hamster-many.mp4
The TubeCu... | 17 | 2 | [
{
"comment_id": "6190010",
"author": "Arduino Enigma",
"timestamp": "2019-10-25T17:18:39",
"content": "You are burying the lede. The Saintcon badge is a pretty interesting looking Enigma Machine",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6190011",
... | 1,760,373,712.459462 | ||
https://hackaday.com/2019/10/25/this-week-in-security-the-robots-are-watching-insecure-vpns-graboids-and-biometric-fails/ | This Week In Security: The Robots Are Watching, Insecure VPNs, Graboids, And Biometric Fails | Jonathan Bennett | [
"Hackaday Columns",
"Security Hacks"
] | [
"android",
"Graboid",
"This Week in Security",
"vpn"
] | A Japanese hotel chain uses robots for nearly everything. Check in, room access, and most importantly, bedside service.
What could possibly go wrong
with putting embedded Android devices, complete with mics and cameras, right in every hotel room? While I could imagine bedside robots ending badly in many ways, today we’... | 10 | 5 | [
{
"comment_id": "6189979",
"author": "dave",
"timestamp": "2019-10-25T15:19:50",
"content": "How about face unlocking and biometrics are just not a really good idea for security ?And if and when they ever are, remember the scene from Demolition Man with the eyeball.It may not work, but still people ... | 1,760,373,712.985728 | ||
https://hackaday.com/2019/10/25/ti-99-4a-ksp-controller-has-a-handle-on-vintage-nasa-styling/ | TI-99/4A KSP Controller Has A Handle On Vintage NASA Styling | Kristina Panos | [
"Games"
] | [
"kerbal",
"kerbal space program",
"ksp",
"mame",
"TI-99/4A",
"toggle switch"
] | [MelkorsGreatestHits] had an extra USB MAME board burning a hole in his parts bin, so he turned it into fuel for
this far-out Kerbal Space Program controller
. Cool your jets — no fully-functioning TI-99/4As were harmed in the making of this baby. Besides, this is a KAL 9000 from Kexas Instruments. See the badges?
Afte... | 22 | 14 | [
{
"comment_id": "6189932",
"author": "mancausoft",
"timestamp": "2019-10-25T12:26:17",
"content": "How destroy a piece of art… :'(",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6189967",
"author": "DainBramage",
"timestamp": "2019-10-25T14:4... | 1,760,373,712.729015 | ||
https://hackaday.com/2019/10/23/build-this-handy-leak-detector-for-1-02/ | Build This Handy Leak Detector For $1.02 | Tom Nardi | [
"classic hacks",
"home hacks"
] | [
"alarm",
"dollar store",
"piezo",
"repurpose",
"water alarm"
] | You’ve probably noticed that modern life has become rather complicated, and the projects we cover here on Hackaday have not been immune to the march of progress. We certainly aren’t complaining, but we’ll admit to the occasional wistful daydream of returning to the days when the front page of Hackaday looked more
MacGy... | 23 | 13 | [
{
"comment_id": "6189505",
"author": "Dave",
"timestamp": "2019-10-23T20:07:28",
"content": "“…just make multiples and throw them out when the batteries die”Greta won’t like that.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6189640",
"author": "Ma... | 1,760,373,712.797041 | ||
https://hackaday.com/2019/10/23/daisy-chained-seven-segment-art-display/ | Daisy Chained Seven Segment Art Display | Sharon Lin | [
"Arduino Hacks"
] | [
"2019 Hackaday Prize",
"art",
"Hackaday Prize",
"led",
"seven segment"
] | This
seven segment art display
makes use of a 81 seven segment red common cathode LED displays. The LEDs are arranged onto 100x100mm boards that each contain an Arduino Nano and 9 seven segment displays, daisy chained through three-pin headers located on the sides of the boards. The pins (power, ground, and serial) pro... | 8 | 4 | [
{
"comment_id": "6189468",
"author": "Joel B",
"timestamp": "2019-10-23T18:38:57",
"content": "When I first saw the screenshot, I thought it was going to be some variation of Conway’s game of life, but done on a giant array of 7 segment displays. Still entertaining, from the art perspective.",
... | 1,760,373,712.672611 | ||
https://hackaday.com/2019/10/23/arm-allows-custom-instructions/ | Arm Allows Custom Instructions | Al Williams | [
"ARM",
"News",
"Rants"
] | [
"arm",
"ARMv8",
"Armv8-M",
"custom",
"instruction"
] | We’re surrounded by ARM processors, which enjoy a commanding foothold in the consumer market, especially with portable electronics. However, Arm Holdings has never focused its business model on manufacturing chips, instead licensing its CPUs to others who make the physical devices. There is a bit of a tightrope to walk... | 31 | 14 | [
{
"comment_id": "6189425",
"author": "Eugene Nine",
"timestamp": "2019-10-23T17:05:57",
"content": "/me adds ‘halt and catch fire’ instrunction",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6189535",
"author": "ERIC S CHAPIN",
"timestamp": "... | 1,760,373,712.873843 | ||
https://hackaday.com/2019/10/23/creating-a-bode-analyzer-from-a-microcontroller/ | Creating A Bode Analyzer From A Microcontroller | Sharon Lin | [
"Microcontrollers"
] | [
"bode plot",
"engineering",
"high pass filter",
"microcontroller"
] | Electrical engineers will recognize the Bode plot as a plot of the frequency response of a system. It displays the frequency on the x-axis and the phase (in degrees) or magnitude (in dB) on the y-axis, making it helpful for understanding a circuit or transfer function in frequency domain analysis.
[Debraj] was able to ... | 13 | 5 | [
{
"comment_id": "6189396",
"author": "jithinbp",
"timestamp": "2019-10-23T15:50:41",
"content": "https://hackaday.io/project/6490-a-versatile-labtool/log/22532-a-few-basic-electronics-experiments-with-guisSelf plug : using a PIC processor and some opamps .Gotta explore the use of a digital filter. S... | 1,760,373,712.935246 | ||
https://hackaday.com/2019/10/23/the-worst-greenhouse-gasses-you-havent-heard-of/ | The Worst Greenhouse Gasses You Haven’t Heard Of | Lewin Day | [
"Featured",
"Interest",
"Original Art",
"Slider"
] | [
"climate change",
"global warming",
"greenhouse gas",
"greenhouse gases",
"methane",
"nitrous oxide",
"sf6"
] | Carbon dioxide has long drawn the ire of an environmentally-conscious humanity. Released from combustion of fossil fuels,
levels of CO
2
in the atmosphere are higher now than at any point in the past 400,000 years.
With the warming effects this has on the global environment, bringing these numbers down is a primary goa... | 128 | 32 | [
{
"comment_id": "6189365",
"author": "David Pye",
"timestamp": "2019-10-23T14:12:08",
"content": "Let’s talk about the anaesthetic vapours I use at work, which are halogenated ethers.The 3 in fairly current practice are isoflurane, sevoflurane and desflurane…All routinely vented into the atmosphere.... | 1,760,373,714.656767 | ||
https://hackaday.com/2019/10/23/perler-printer-pushes-pixel-art-like-no-sprite-artist-could/ | Perler Printer Pushes Pixel-Art Like No Sprite Artist Could | Sonya Vasquez | [
"3d Printer hacks"
] | [
"perler beads"
] | There’s something oddly soothing about the practice of laying down Perler Beads on a casual weekend to make your favorite classic Nintendo characters. But seriously, why use our grubby hands like a caveman when we could leverage a machine to do the heavy-lifting for us? That’s exactly what [knezuld11] did! They’ve buil... | 12 | 8 | [
{
"comment_id": "6189328",
"author": "david moloney",
"timestamp": "2019-10-23T11:19:55",
"content": "Imagine a computer vision system as a front end for this to do perler prints on demand in a kiosk",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6189329",
... | 1,760,373,714.206655 | ||
https://hackaday.com/2019/10/23/big-beautiful-vintage-computers-and-where-to-find-them/ | Big Beautiful Vintage Computers, And Where To Find Them | Donald Papp | [
"Retrocomputing"
] | [
"cray",
"Large Scale Systems Museum",
"mainframe",
"microcomputer",
"minicomputer",
"museum",
"vintage"
] | An IBM 3380E disk storage system, 5 gigabyte capacity.
[Ken Shirriff] recently shared some pictures and a writeup from his visit to the
Large Scale Systems Museum
, a remarkable private collection of mainframes and other computers from the 1970s to the 1990s. Housed in a town outside Pittsburgh, it contains a huge vari... | 30 | 17 | [
{
"comment_id": "6189293",
"author": "ff0rt",
"timestamp": "2019-10-23T08:16:40",
"content": "I’m always fashinated by these ancient wonders. May I also signal the last working Olivetti mainframe in Italy?https://spectrum.ieee.org/tech-talk/tech-history/silicon-revolution/when-the-history-of-computi... | 1,760,373,714.375986 | ||
https://hackaday.com/2019/10/22/developing-guidelines-for-sustainable-spaceflight/ | Developing Guidelines For Sustainable Spaceflight | Tom Nardi | [
"Current Events",
"Featured",
"Original Art",
"Slider",
"Space"
] | [
"aerospace",
"collision avoidance",
"ESA",
"low earth orbit",
"satellite",
"space debris",
"space safety",
"SpaceX",
"Starlink"
] | In the early days of spaceflight, when only the governments of the United States and the Soviet Union had the ability to put an object into orbit, even the most fanciful of futurists would have had a hard time believing that commercial entities would one day be launching sixty satellites at a time. What once seemed lik... | 18 | 10 | [
{
"comment_id": "6189084",
"author": "Typo Cruter",
"timestamp": "2019-10-22T14:15:19",
"content": "“In other words, once the upper stage of the rocket has deposited your satellite into the intended orbit, it then must adjust its own course to either burn up in the atmosphere or continue on to deep ... | 1,760,373,714.276461 | ||
https://hackaday.com/2019/10/22/robot-joints-go-modular-with-this-actuator-project/ | Robot Joints Go Modular With This Actuator Project | Donald Papp | [
"Robots Hacks"
] | [
"3d printed",
"backlash",
"ESP32",
"flex spline",
"gears",
"modular",
"open source",
"planetary gears",
"touch sensor"
] | [John Lauer] has been hard at work re-thinking robot arms. His project to create
modular, open source actuators that can be connected to one another to form an arm
is inspiring, and boasts an impressively low parts cost as well. The actuators are each self-contained, with an ESP32 and a design that takes advantage of t... | 4 | 3 | [
{
"comment_id": "6189191",
"author": "Harvie.CZ",
"timestamp": "2019-10-22T19:55:42",
"content": "Impressive concept. Encoders for closed loop control would be a nice touch. I am really looking forward to see how this will evolve over time.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,714.702128 | ||
https://hackaday.com/2019/10/22/a-spectrum-analyzer-for-the-smart-response-xe/ | A Spectrum Analyzer For The Smart Response XE | Tom Nardi | [
"Arduino Hacks",
"Wireless Hacks"
] | [
"ATmega128RF",
"CC1101",
"im-me",
"POCSAG",
"SMART Response XE",
"spectrum analyzer"
] | Remember the Girl Tech IM-me? It was a hot-pink clearance rack toy that suddenly became one of the hottest commodities in the hacking world when it was discovered they could be used for all sorts of radio frequency shenanigans. Now they go for triple digits on eBay, if you can even find one. Well, we’re probably about ... | 27 | 14 | [
{
"comment_id": "6189063",
"author": "Not Pink",
"timestamp": "2019-10-22T13:00:35",
"content": "Really? The Girl Tech IM-me is up to tripple digits now? OMG!Guys.. this IS a cool hack but before you all drive this one up that far remember you can get an old cellphone or tablet and an RTL-SDR stick ... | 1,760,373,717.20234 | ||
https://hackaday.com/2019/10/21/vintage-transistor-radio-gets-internet-transplant/ | Vintage Transistor Radio Gets Internet Transplant | Lewin Day | [
"Raspberry Pi"
] | [
"internet radio",
"radio",
"raspberry pi"
] | The invention of the transistor revolutionized radio, allowing receivers to be made far more compact and portable than ever before. In the middle of the 20th century, the devices exploded in popularity, and pocket transistor radios took the market by storm. [MisterM] had fond memories of such times, and
when he found a... | 14 | 9 | [
{
"comment_id": "6188996",
"author": "MIKE",
"timestamp": "2019-10-22T07:02:34",
"content": "Yawn,another “take an old appliance and use the box to put electronics there” video.Even the original loudspeaker was thrown away and a way smaller speaker was used, and also the 3,5 mm jack was thrown out.... | 1,760,373,717.256312 | ||
https://hackaday.com/2019/10/21/an-algorithm-for-de-biasing-ai-systems/ | An Algorithm For De-Biasing AI Systems | Sharon Lin | [
"Software Hacks"
] | [
"algorithms",
"artificial intelligence",
"mit csail",
"research"
] | A fundamental truth about AI systems is that training the system with biased data creates biased results. This can be especially dangerous when the systems are being used to predict crime or select sentences for criminals, since they can hinge on unrelated traits such as race or gender to make determinations.
A group o... | 52 | 15 | [
{
"comment_id": "6188963",
"author": "qwert",
"timestamp": "2019-10-22T02:23:10",
"content": "How about we just don’t go down this road? Do we really need this tech? Do we really think it’s not going to turn into something miserable sometime in the near future?But I guess there’s no point, since the... | 1,760,373,717.542328 | ||
https://hackaday.com/2019/10/21/build-yourself-a-set-of-glowing-wings/ | Build Yourself A Set Of Glowing Wings | Lewin Day | [
"Wearable Hacks"
] | [
"fiber optic",
"fibre optic",
"wearable",
"wings"
] | Humans didn’t come with wings from the factory, and most efforts to fit them after the fact have been at least as far as flight is concerned, largely fruitless. That doesn’t mean you can’t cut a devastatingly sharp aesthetic though,
and [Natalina’s] fiber optic wings are a great way to do just that.
The wings are a lea... | 12 | 6 | [
{
"comment_id": "6188931",
"author": "Andy Pugh",
"timestamp": "2019-10-21T23:09:42",
"content": "Look great.Would look less great on me, a fat middle-aged bloke.I suspect my cosplay days are long past.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6188937"... | 1,760,373,717.317256 | ||
https://hackaday.com/2019/10/21/an-optocoupler-doorbell-notifier/ | An Optocoupler Doorbell Notifier | Tom Nardi | [
"home hacks",
"Parts"
] | [
"3D printed enclosure",
"doorbell",
"home automation",
"optocoupler",
"particle",
"xenon"
] | Over the years we’ve seen several attempts at adding Internet connectivity to the lowly wired doorbell. Generally, these projects aim to piggyback on the existing wiring, bells, and buttons rather than replace them entirely. Which invariably means at some point the AC wiring is going to need to interface with a DC micr... | 30 | 8 | [
{
"comment_id": "6188903",
"author": "akgooseman",
"timestamp": "2019-10-21T20:45:14",
"content": "Apart from the challenge, why make this difficult? Instead of using signalling over 24VAC to trigger the microcontroller, connect the doorbell button direct to the microcontroller, throw in some code t... | 1,760,373,717.391271 | ||
https://hackaday.com/2019/10/22/the-futures-so-bright-i-gotta-wear-lcds/ | The Future’s So Bright, I Gotta Wear LCDs | Tom Nardi | [
"Raspberry Pi",
"Wearable Hacks"
] | [
"Black Mirror",
"computer vision",
"lcd",
"shutter glasses",
"smart glasses"
] | Whether it was rays from the Sun that made a 150 million kilometer trip just to ruin your day or somebody’s unreasonably bright aftermarket headlights, at some point or another we’ve all experienced the discomfort of bright spots in our eyes. But short of wearing welder’s goggles all the time, what can we do? Luckily f... | 18 | 8 | [
{
"comment_id": "6189266",
"author": "Daren Schwenke",
"timestamp": "2019-10-23T05:08:55",
"content": "Selective peril sensitive sunglasses? :)https://hackaday.io/project/580-peril-sensitive-sunglasses",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6189267",
... | 1,760,373,717.451223 | ||
https://hackaday.com/2019/10/22/advertise-your-conference-schedule-via-ssid/ | Advertise Your Conference Schedule Via SSID | Tom Nardi | [
"Raspberry Pi",
"Wireless Hacks"
] | [
"broadcast",
"fake network",
"ntp",
"rtc",
"ssid",
"talk schedule"
] | Whether it’s been a Python script running on a Linux box or an ESP8266,
abusing
using WiFi SSIDs to convey messages is hardly a new trick. But for DerbyCon 2019, [vgrsec] wanted to do put together something a little unique. Dare we say, even useful. Rather than broadcast out SSID obscenities or memes, this
Raspberry Pi... | 11 | 4 | [
{
"comment_id": "6189301",
"author": "zoobab",
"timestamp": "2019-10-23T08:45:04",
"content": "A 2EUR ESP8266 wemos would be better. You can even get the original ESP01 (a pain to flash and to power) for 1EUR those days.And no need of an internet dependency to get the time, a static list is fine. At... | 1,760,373,717.596462 | ||
https://hackaday.com/2019/10/22/steering-by-touch-and-haptic-feedback/ | Steering By Touch And Haptic Feedback | Sharon Lin | [
"Arduino Hacks"
] | [
"arduino",
"driving",
"haptic feedback"
] | Scribble is a haptic interface lets you draw your way through traffic. In an environment where fully automated vehicles are becoming the expectation for the next step in transportation, Scribble provides a friendly alternative that allows you to guide your car around, while the automation makes decisions on how to actu... | 10 | 5 | [
{
"comment_id": "6189229",
"author": "Luke",
"timestamp": "2019-10-22T23:30:27",
"content": "So its like steering a horse.Now if only the car was as intelligent as a horse, then you could actually trust it to drive itself.",
"parent_id": null,
"depth": 1,
"replies": [
{
"co... | 1,760,373,717.644957 | ||
https://hackaday.com/2019/10/22/a-miniature-radio-telescope-in-every-backyard/ | A Miniature Radio Telescope In Every Backyard | Tom Nardi | [
"cons",
"Radio Hacks",
"Science"
] | [
"2019 Philadelphia Maker Faire",
"arduino",
"DirecTV",
"pan and tilt",
"Radio Telescope",
"RTL-SDR",
"stepper motor"
] | You probably wouldn’t expect to see somebody making astronomical observations during a cloudy day in the center of a dense urban area, but that’s exactly what was happening at the recent 2019 Philadelphia Mini Maker Faire. Professor James Aguirre of the University of Pennsylvania was there demonstrating the particularl... | 35 | 14 | [
{
"comment_id": "6189201",
"author": "Michael Black",
"timestamp": "2019-10-22T20:28:41",
"content": "But you can hear Jupiter on a shirtwave radio at 18MHz, you will need an antenna but nothing extensive.So the trick isn’t what you can assemble, but results. The field began as a byproduct of figur... | 1,760,373,717.731442 | ||
https://hackaday.com/2019/10/22/building-a-laser-head-with-high-speed-high-resolution/ | Building A Laser Head With High Speed, High Resolution | Lewin Day | [
"Laser Hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"laser"
] | A test exposure on cyanotype paper shows off the prototype’s resolution, around 100 microns.
Typically, when it comes to scanning a laser, it’s done with galvos or a rotating mirror assembly. However, these methods can be slow and cumbersome, or restricted due to existing patents. [Rick] aimed to find an alternative so... | 9 | 5 | [
{
"comment_id": "6189174",
"author": "shrad",
"timestamp": "2019-10-22T19:02:32",
"content": "Resolution is somewhat relative, it all depends on the way it is scannedA raster scanner like this one can have a great resolution in one axis but will always lack in the other, unless the second axis is ba... | 1,760,373,717.781807 | ||
https://hackaday.com/2019/10/22/grind-your-welds-with-pride-if-thats-the-way-you-do-it/ | Grind Your Welds With Pride, If That’s The Way You Do It | Jenny List | [
"Hackaday Columns",
"Interest",
"Skills",
"Slider"
] | [
"metalwork",
"skills",
"welding"
] | To grind or not to grind? What a question! It all depends on what you’re really trying to show, and in the case of welded joints, I often want to prove the integrity of the weld.
My ground-back piece of welded tube. Eagle-eyed readers will spot that the grinding reveals a weld that isn’t perfect.
Recently, I wrote a pi... | 84 | 31 | [
{
"comment_id": "6189135",
"author": "qwert",
"timestamp": "2019-10-22T17:20:54",
"content": "Ha. I think my welds are perhaps a touch better than yours, but not by much. I still have a lot to learn.Wasn’t there a retraction of the ten thousand hours statistic? I kind of remembering reading somewher... | 1,760,373,718.848541 | ||
https://hackaday.com/2019/10/22/creepy-halloween-doll-might-make-you-betsy-wetsy/ | Creepy Halloween Doll Might Make You Betsy Wetsy | Kristina Panos | [
"Holiday Hacks"
] | [
"blynk",
"creepy doll",
"doll",
"Halloween hacks",
"micro servos",
"wemos d1 mini"
] | If you want to terrify your neighborhood this Halloween, you might go for the old standbys like skeletons or zombies. But you don’t have to go gory to find glory. Consider the talking doll. Those things are creepy enough already, right? Well, [cabuu] says no,
the doll should be animated with servos and have remote cont... | 6 | 3 | [
{
"comment_id": "6189111",
"author": "Chris O",
"timestamp": "2019-10-22T15:58:09",
"content": "Bravo!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6189197",
"author": "Hirudinea",
"timestamp": "2019-10-22T20:16:37",
"content": "My only complain... | 1,760,373,718.262111 | ||
https://hackaday.com/2019/10/20/humanoid-robot-has-joints-that-inspire/ | Humanoid Robot Has Joints That Inspire | Danie Conradie | [
"Robots Hacks"
] | [
"actuator",
"cable mechanism",
"humanoid robot",
"Mechanisms",
"robotics",
"skynet"
] | One of the challenges with humanoid robots, besides keeping them upright, is finding compact combinations of actuators and joint mechanisms that allow for good range of smooth motion while still having good strength. To achieve that researchers from the IRIM Lab at Korea University of Technology and Education developed... | 8 | 7 | [
{
"comment_id": "6188470",
"author": "Mike Massen",
"timestamp": "2019-10-20T08:35:25",
"content": "Great idea and valued presentation, thought provoking, well done.Thanks for posting :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6188475",
"author": "... | 1,760,373,718.596675 | ||
https://hackaday.com/2019/10/19/mit-mini-cheetah-made-and-improved-in-china/ | MIT Mini Cheetah Made And Improved In China | Gerrit Coetzee | [
"Robots Hacks"
] | [
"AliExpress",
"china",
"clone",
"mini cheetah",
"mit"
] | We nearly passed over this tip from [xoxu] which was just a few
links
to
some
AliExpress
pages
. However, when we dug a bit into the pages we found something pretty surprising. Somewhere out there in the wild we…east of China there’s a company not only reverse engineering the Mini Cheetah, but improving it too.
We cove... | 21 | 11 | [
{
"comment_id": "6188443",
"author": "Tom Hargrave",
"timestamp": "2019-10-20T05:41:03",
"content": "The page states right up front that “Please note: This product is a custom-made product with no quality problems. Once sold, it will not be returned!”And you guys know well enough that any complex cu... | 1,760,373,718.468234 | ||
https://hackaday.com/2019/10/19/name-a-hacker-camp/ | Name A Hacker Camp | Jenny List | [
"cons",
"News"
] | [
"hacker camp",
"OHM2013",
"sha2017"
] | Many of us look forward to visiting a summer hacker camp, as an opportunity to immerse ourselves in some of the coolest and most stimulating stuff that comes out of our community. The names trip off the tongue, ToorCamp, CCCamp, EMFcamp, BornHack, and more.
There’s one major event that doesn’t trip off the tongue in th... | 31 | 18 | [
{
"comment_id": "6188438",
"author": "ellisgl",
"timestamp": "2019-10-20T03:14:40",
"content": "BOB… Break Old Barriers",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6188458",
"author": "Stumblingthunder",
"timestamp": "2019-10-20T07:23:00",
"cont... | 1,760,373,718.54184 | ||
https://hackaday.com/2019/10/19/storm-cloud-lamp-brings-the-weather-inside/ | Storm Cloud Lamp Brings The Weather Inside | Lewin Day | [
"LED Hacks"
] | [
"cloud lamp",
"lamp"
] | The humble lamp is a common build for a hacker looking to express themselves creatively. Often, nature can serve as an inspiration,
as was the case for [Michael Pick]’s Storm Cloud
. (Video, embedded below.)
Electronically, the build is straightforward, consisting of an Arduino Uno, an MP3 shield, and a string of WS280... | 4 | 3 | [
{
"comment_id": "6188444",
"author": "M H",
"timestamp": "2019-10-20T05:42:40",
"content": "How do you clean/dust it?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6188464",
"author": "Jan",
"timestamp": "2019-10-20T07:52:43",
"conte... | 1,760,373,718.306193 | ||
https://hackaday.com/2019/10/19/beam-me-up-to-the-pcb-space-ship/ | Beam Me Up To The PCB Space Ship | Sharon Lin | [
"Microcontrollers"
] | [
"2019 Hackaday Prize",
"Hackaday Prize",
"leds",
"microcontroller",
"pcb"
] | This project would fit in perfectly with #BadgeLife if someone could figure out a way to hang it from their neck. Inspired by Star Trek’s
Starship Enterprise
, [bobricius] decided to design and assemble a miniature space ship PCB model, complete with 40 blinking LEDs controlled by an ATtiny85.
While the design uses 060... | 15 | 9 | [
{
"comment_id": "6188398",
"author": "Karl",
"timestamp": "2019-10-19T20:09:06",
"content": "Finding a way to hang it around your neck didn’t stop the DEF CON 23 badge. 🤣",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6188399",
"author": "LordNothing",
... | 1,760,373,718.655204 | ||
https://hackaday.com/2019/10/19/customizing-xiaomi-arm-cortex-m-firmware/ | Customizing Xiaomi ARM Cortex-M Firmware | Sharon Lin | [
"Tech Hacks",
"Wireless Hacks"
] | [
"arm cortex-m",
"defcon",
"defcon26",
"iot village",
"xiaomi"
] | This hack was revealed a while ago at DEFCON26, but it’s still a fascinating look into vulnerabilities that affect some of the most widely used IoT devices.
[Dennis Giese] figured out a way to
modify
ARM Cortex-M based firmware for use in customizing the functionality of devices or removing access to the vendor. Obviou... | 2 | 2 | [
{
"comment_id": "6188469",
"author": "Steve Ballmer",
"timestamp": "2019-10-20T08:30:36",
"content": "Would have been nice to lunk to the tools mentioned. For example ‘there exist a python tool to convert binary to elf … Oh and which tool is that? Name, link would be nice for googlers stumping onto ... | 1,760,373,718.701598 | ||
https://hackaday.com/2019/10/19/theres-more-to-the-3d-print-than-the-eye-can-see/ | There’s More To The 3D Print Than The Eye Can See | Sharon Lin | [
"3d Printer hacks"
] | [
"3d printer",
"3d printing",
"hacks",
"slicer"
] | If you thought CADing designs for 3D printing was hard enough, wait until you hear about this
.stl
trick.
[Angus] of Maker’s Muse recently
demoed a method for creating hidden geometries
in
.stl
files that are only revealed during the slicing process before a 3D print. (Video, embedded below.) The process involves creat... | 11 | 5 | [
{
"comment_id": "6188352",
"author": "George Knowlton",
"timestamp": "2019-10-19T14:53:38",
"content": "“Recently”? Angus posted that video more than a year ago.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6188550",
"author": "tedderp",
"t... | 1,760,373,718.908396 | ||
https://hackaday.com/2019/10/20/finding-usb-bugs-the-hard-way/ | Finding USB Bugs The Hard Way | Sharon Lin | [
"Arduino Hacks"
] | [
"debugging",
"protocol analyzer",
"usb"
] | Sometimes debugging just doesn’t go the way you want it to. When
USB problems
arise, you can usually use a protocol analyzer to find the issue causing trouble. For [
Paul Stoffregen
], it was only the first step in a long process to find the culprit.
Procotol Analyzer
The complaint that came up was from a customer whos... | 17 | 10 | [
{
"comment_id": "6188631",
"author": "rasz_pl",
"timestamp": "2019-10-21T06:19:24",
"content": ">As it turns out, the issue was that the tokens weren’t being sent in the correct order.Did the article change after you posted this? Because this is not whats in the linked writeup.The issue was a bug in... | 1,760,373,718.978633 | ||
https://hackaday.com/2019/10/20/turn-your-old-school-crt-into-a-youtube-media-player/ | Turn Your Old-school CRT Into A YouTube Media Player | Sharon Lin | [
"Radio Hacks",
"Retrocomputing"
] | [
"cathode ray tube",
"chromecast",
"retro",
"rf signal",
"television"
] | Ever wish you could enjoy modern conveniences like YouTube in a retro world of CRTs and late 20th century graphics?
[Johannes Spreitzer] happened to find an old VIENNASTAR CRT (cathode-ray tube television) made by the Austrian brand Kapsh at a flea market. The CRT dates back to 1977 and uses just RF input, making it us... | 40 | 15 | [
{
"comment_id": "6188603",
"author": "Joe Giliberti",
"timestamp": "2019-10-21T02:31:09",
"content": "Once I get my CTC-5 running…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6188604",
"author": "gregg4",
"timestamp": "2019-10-21T02:41:49",
"con... | 1,760,373,719.222124 | ||
https://hackaday.com/2019/10/20/hackaday-links-october-20-2019/ | Hackaday Links: October 20, 2019 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"Chemistry",
"cobalt",
"coral",
"hackaday links",
"lithium ion",
"Nobel",
"pasta",
"Plutonium",
"RTG",
"shrinkage",
"spaghetti",
"tensor flow"
] | It’s Nobel season again, with announcements of the prizes in literature, economics, medicine, physics, and chemistry going to worthies the world over. The wording of the Nobel citations are usually a vast oversimplification of decades of research and end up being a scientific word salad. But
this year’s chemistry Nobel... | 13 | 6 | [
{
"comment_id": "6188583",
"author": "Shannon",
"timestamp": "2019-10-21T00:27:25",
"content": "My hack to avoid breaking spaghetti into three or more pieces is to not break spaghetti at all.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6188586",
"... | 1,760,373,719.286753 | ||
https://hackaday.com/2019/10/20/navigating-the-dark-side-controlling-robots-with-zero-radio-communication/ | Navigating The Dark Side: Controlling Robots With Zero Radio Communication | Sharon Lin | [
"Robots Hacks"
] | [
"2019 Hackaday Prize",
"education",
"Hackaday Prize",
"robotics"
] | While autonomous robots have been the subject of some projects in the past, this particular project takes a swing at building a robot that can teach children about controls and robotics.
The idea is to
mimic a space mission
on the dark side of the moon, where radio contact is nearly impossible. The students learn to pr... | 15 | 8 | [
{
"comment_id": "6188552",
"author": "robert m",
"timestamp": "2019-10-20T21:03:24",
"content": "Since when is JAVA a lower language?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6188633",
"author": "Sebastian",
"timestamp": "2019-10-21T06:... | 1,760,373,719.975812 | ||
https://hackaday.com/2019/10/20/pneumatic-zombie-will-blow-away-trick-or-treaters/ | Pneumatic Zombie Will Blow Away Trick-or-Treaters | Kristina Panos | [
"Holiday Hacks"
] | [
"animatronic zombie",
"halloween",
"zombie"
] | What are you doing for Halloween this year? Just gonna set the candy bowl out on the porch and call it good? That’s a risky one, ’cause if one group of mischievous preteens cleans you out, you might get TP’d by the next one. Best to keep Halloween a tad on the scary side and keep those ghouls in line. Candy is a privil... | 11 | 8 | [
{
"comment_id": "6188555",
"author": "RetepV",
"timestamp": "2019-10-20T21:12:03",
"content": "Whahahaha! Brilliant!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6188564",
"author": "thomastechguy",
"timestamp": "2019-10-20T22:33:58",
"content": ... | 1,760,373,719.498827 | ||
https://hackaday.com/2019/10/20/maker-spirit-alive-and-well-at-the-philly-maker-faire/ | Maker Spirit Alive And Well At The Philly Maker Faire | Tom Nardi | [
"cons",
"Hackaday Columns"
] | [
"2019 Philadelphia Maker Faire",
"events",
"maker faire",
"props",
"robotics"
] | For many of us, it’s difficult to imagine a world without Maker Faire. The flagship events in California and New York have served as a celebration of the creative spirit for a decade, giving hackers and makers a rare chance to show off their creations to a live audience numbering into the hundreds of thousands. It’s ha... | 12 | 9 | [
{
"comment_id": "6188506",
"author": "Pez",
"timestamp": "2019-10-20T15:01:30",
"content": "Great to see Brendan Schrader’s work live on in the Hive76 stuff, courtesy of Clyde and the suitcase speaker systems.http://192.168.1.200:31000/Also, the weird thing is, Hive76 had a giant operation game over... | 1,760,373,719.729728 | ||
https://hackaday.com/2019/10/20/making-a-robot-cleaner-even-smarter/ | Making A Robot Cleaner Even Smarter | Sharon Lin | [
"Robots Hacks"
] | [
"IR remote",
"RESTful",
"robot cleaner"
] | Some electric cleaners are effective and some hardly even seem to make a difference. The ILIFE V7s may be a robot cleaner, but even with its cleaning modes and anti-collision system, it still requires IR signals to complete any tasks. Tired of having to be physically in the same place as his robot cleaner, [pimuzzo] de... | 9 | 6 | [
{
"comment_id": "6188491",
"author": "RoGeorge",
"timestamp": "2019-10-20T12:44:34",
"content": "Making robots smarter is easy, making people smarter is hard. <- /me vewy, vewy prowd of saying that:o)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6188514",
... | 1,760,373,719.918469 | ||
https://hackaday.com/2019/10/21/a-diy-computer-programmed-in-pure-rust/ | A DIY Retrocomputer Programmed In Pure Rust | Sharon Lin | [
"computer hacks"
] | [
"2019 Hackaday Prize",
"diy computer",
"Hackaday Prize",
"rust"
] | Can you generate VGA and handle a PS/2 keyboard with a Cortex-M4 in Rust? That’s precisely what [theJPster] wanted to find out with
Monotron
, a 1980s style home computer programmed in pure Rust.
In order to run embedded Rust without a working operating system, some tools are necessary: an LLVM back-end for generating ... | 17 | 9 | [
{
"comment_id": "6188893",
"author": "N",
"timestamp": "2019-10-21T19:51:50",
"content": "Like most humans I am also equipped with error-correcting technology, I was able to derive the original content and I must say that this is super cool. I think the only thing I would do differently is to use a... | 1,760,373,719.571347 | ||
https://hackaday.com/2019/10/21/how-to-make-an-electric-scooter-chain-sprocket-with-nothing-but-hand-tools/ | How To Make An Electric Scooter Chain Sprocket With Nothing But Hand Tools | Lewin Day | [
"Hackaday Columns",
"Slider",
"Transportation Hacks"
] | [
"chain drive",
"chain sprocket",
"fabrication",
"machining",
"scooter",
"scooter hacking",
"sprocket",
"sprockets"
] | Sometimes, mechanical parts can be supremely expensive, or totally unavailable. In those cases, there’s just one option — make it yourself. It was this very situation in which I found myself. My electric scooter had been ever so slightly bested by a faster competitor, and I needed redemption. A gearing change would do ... | 33 | 12 | [
{
"comment_id": "6188829",
"author": "mime",
"timestamp": "2019-10-21T17:05:51",
"content": "gotta love the “after the apocalypse” engineering there.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6188851",
"author": "Antron Argaiv",
"timesta... | 1,760,373,719.661904 | ||
https://hackaday.com/2019/10/21/open-hardware-month-hack-chat/ | Open Hardware Month Hack Chat | Dan Maloney | [
"Hackaday Columns"
] | [
"open hardware",
"Open Hardware Month",
"open source",
"OSHWA",
"The Hack Chat"
] | Join us on Wednesday, October 23 at noon Pacific for the
Open Hardware Month Hack Chat
with
Michael Weinberg
!
It seems like everything and everyone has a special day set aside on the calendar. You know the drill – a headline declaring it National Grilled Cheese Day (sorry, you missed it – April 12) or National Bundt P... | 0 | 0 | [] | 1,760,373,720.078728 | ||
https://hackaday.com/2019/10/21/a-drone-sprouts-wings/ | A Drone Sprouts Wings | Bryan Cockfield | [
"drone hacks"
] | [
"air brakes",
"drone",
"hangtime",
"prototype",
"quadrotor",
"wings"
] | While there are some fixed-wing drones in the hobby world, most of us around here think of the quadcopter when this word is mentioned. There have been some fixed-wings around, and lots of multi-rotors, but not much of a mix of the two. [Paweł] wanted to see what would happen if he mixed these two together,
and created ... | 5 | 2 | [
{
"comment_id": "6188843",
"author": "Greg A",
"timestamp": "2019-10-21T17:36:13",
"content": "Seems like it could be lighter and more potent if it was fabric, like a parachute. Not sure how to rapidly actuate it though.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comm... | 1,760,373,720.027018 | ||
https://hackaday.com/2019/10/21/dns-over-https-is-the-wrong-partial-solution/ | DNS-over-HTTPS Is The Wrong Partial Solution | Maya Posch | [
"Current Events",
"Featured",
"Interest",
"Security Hacks",
"Slider"
] | [
"dns",
"dns over https",
"dns over tls",
"internet",
"tls"
] | Openness has been one of the defining characteristics of the Internet for as long as it has existed, with much of the traffic today still passed without any form of encryption. Most requests for HTML pages and associated content are in plain text, and the responses are returned in the same way, even though HTTPS has be... | 51 | 25 | [
{
"comment_id": "6188775",
"author": "Peter",
"timestamp": "2019-10-21T14:23:19",
"content": "At this point any thing Google throws out there needs to be critically examined.DoH is about taking away control and making user choices more difficult.",
"parent_id": null,
"depth": 1,
"replies... | 1,760,373,720.366982 | ||
https://hackaday.com/2019/10/21/the-arduino-ide-finally-grows-up/ | The Arduino IDE Finally Grows Up | Al Williams | [
"Arduino Hacks",
"News"
] | [
"arduino",
"Arduino Pro"
] | While the Arduino has a very vocal fan club, there are always a few people less than thrilled with the ubiquitous ecosystem. While fans may just dismiss it as sour grapes, there are a few legitimate complaints you can fairly level at the stock setup. To address at least some of those concerns, Arduino is rolling out th... | 105 | 25 | [
{
"comment_id": "6188706",
"author": "Daid",
"timestamp": "2019-10-21T11:07:36",
"content": "If it still hides compiler warnings by default, then it’s still the spawn of Satan.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6188737",
"author": "Massi... | 1,760,373,720.258659 | ||
https://hackaday.com/2019/10/21/how-a-secret-gaming-scene-emerged-in-communist-east-germany/ | How A Secret Gaming Scene Emerged In Communist East Germany | Sharon Lin | [
"Retrocomputing"
] | [
"berlin wall",
"commodore 64",
"east germany",
"gaming"
] | During the late 1980s, a
gaming scene
emerged in East Germany just before the fall of communism. Teenagers gathered in buildings like the “House of Young Talents” (HdjT), originally Palais Podewils, to watch and play Commodore 64 games. There were 20 similar clubs in Berlin alone, sometimes with more than 70 people cro... | 23 | 9 | [
{
"comment_id": "6188667",
"author": "BastetFurry",
"timestamp": "2019-10-21T08:22:15",
"content": "“it wouldn’t even be violating the saw”Saw? ;)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6188682",
"author": "salec",
"timestamp": "2019-... | 1,760,373,720.437858 | ||
https://hackaday.com/2019/10/19/converting-a-tesla-to-a-pickup-truck/ | Converting A Tesla To A Pickup Truck | Sharon Lin | [
"car hacks",
"hardware"
] | [
"car",
"car mod",
"simone giertz",
"tesla",
"truck"
] | The renowned inventor of useless robots [Simone Giertz] has outdone herself this time. She, along with a team of engineers featuring [Rich Rebuilds], [Laura Kampf], and [Marcos Ramirez], recently decided to
convert a Tesla into a pickup truck
, and make a video along the way, all while salvaging what remains they can o... | 38 | 16 | [
{
"comment_id": "6188321",
"author": "Jason Robinson",
"timestamp": "2019-10-19T12:21:11",
"content": "Truckla? No. El Teslamino? Yea",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6188334",
"author": "Ren",
"timestamp": "2019-10-19T13:36:56"... | 1,760,373,721.120944 | ||
https://hackaday.com/2019/10/19/file-compression-by-steganography/ | File Compression By Steganography | Sharon Lin | [
"Security Hacks",
"Software Development",
"Software Hacks"
] | [
"file compression",
"JPEG",
"steganography"
] | In a world with finite storage and an infinite need for more storage space, data compression becomes a very necessary problem. Several algorithms for data compression may be more familiar – Huffman coding, LZW compression – and some a bit more arcane.
[Labunsky] decided to put to use his knowledge of steganography to
c... | 29 | 11 | [
{
"comment_id": "6188293",
"author": "Luke",
"timestamp": "2019-10-19T09:19:39",
"content": "Re: the xkcd comic.Sometimes PNG is warranted. Most of the time people try to upload their holiday photos as 20 megabyte PNG files. Also, good JPEG compression is indistinguishable.",
"parent_id": null,
... | 1,760,373,721.300242 | ||
https://hackaday.com/2019/10/18/miss-nothing-with-a-hacked-360-degree-camera-trap/ | Miss Nothing With A Hacked 360 Degree Camera Trap | Danie Conradie | [
"digital cameras hacks"
] | [
"360 degree camera",
"conservation",
"outdoor",
"wildlife camera"
] | Camera traps are a very common tool in wildlife conservation and research, but placing and pointing them correctly can be a bit of a guessing game. Something very interesting could happen just out of frame and you’d be none the wiser. The [Andrew Quitmeyer] and [Danielle Hoogendijk] at DINALABS (Digital Naturalism Labo... | 4 | 3 | [
{
"comment_id": "6188308",
"author": "Harvey",
"timestamp": "2019-10-19T10:47:36",
"content": "Dang, that’s a huge rat, almost as big as a NYC sewer rat. 360 would be so much cooler without the fish-eye effect, and a better way to view. Pretty cool they hacked commercial 360 cameras for this, was ... | 1,760,373,721.04958 | ||
https://hackaday.com/2019/10/18/revisiting-the-blackhat-hack-how-a-security-conference-was-pwned/ | Revisiting The BlackHat Hack: How A Security Conference Was Pwned | Sharon Lin | [
"Security Hacks"
] | [
"blackhat",
"NFC",
"security"
] | Does anyone remember the Black Hat BCard hack in 2018? This hack has been documented extensively, most notoriously by [NinjaStyle] in his original blog post revealing the circumstances around discovering the vulnerability. The breach ended up revealing the names, email addresses, phone numbers, and personal details of ... | 1 | 1 | [
{
"comment_id": "6188267",
"author": "Lou Costin",
"timestamp": "2019-10-19T04:58:39",
"content": "Perhaps he could check the vulnerability of some of the new HR apps we get when we are employed by a new corporation. Because I run only Linux on my laptop I found when I logged on with my employer ... | 1,760,373,721.340077 | ||
https://hackaday.com/2019/10/18/a-low-power-solution-to-streamlining-sensor-data-for-iot/ | A Low-Power Solution To Streamlining Sensor Data For IoT | Sharon Lin | [
"Raspberry Pi"
] | [
"3D printed trash",
"can-bus",
"internet of things"
] | For home use IoT systems, getting sensor data from tons of physical locations centralized to a single Raspberry Pi can be a difficult job, especially when considering the power consumption that’s necessary for doing it all over WiFi. When you’re using an ESP8266, for instance, swapping out batteries and accounting for ... | 16 | 8 | [
{
"comment_id": "6188268",
"author": "Sam Peterson",
"timestamp": "2019-10-19T05:07:29",
"content": "who misses AXLink?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6188291",
"author": "afterhourscoding",
"timestamp": "2019-10-19T09:02:54",
"cont... | 1,760,373,721.175118 | ||
https://hackaday.com/2019/10/18/usb-power-delivery-for-all-the-things/ | USB Power Delivery For All The Things | Tom Nardi | [
"Parts",
"Peripherals Hacks"
] | [
"i2c",
"power supply",
"STUSB4500",
"USB C",
"USB-PD"
] | The promise of USB Power Delivery (USB-PD) is that we’ll eventually be able to power all our gadgets, at least the ones that draw less than 100 watts anyway, with just one adapter. Considering most of us are the proud owners of a box filled with assorted AC/DC adapters in all shapes and sizes, it’s certainly a very app... | 25 | 11 | [
{
"comment_id": "6188200",
"author": "Tony Tree",
"timestamp": "2019-10-18T20:35:24",
"content": "“it looks like we’re finally starting to see some real movement towards making USB-C the standard.”Not so fast! USB-C is great and all but it’s only a stop-gap!USB-C just can’t supply enough power for ... | 1,760,373,721.233978 | ||
https://hackaday.com/2019/10/18/replacing-the-3d-printer-and-router-a-tool-for-manufacturing-human-scale-forms/ | Replacing The 3D Printer And Router: A Tool For Manufacturing Human-Scale Forms | Sharon Lin | [
"3d Printer hacks"
] | [
"2019 Hackaday Prize",
"fabrication",
"Hackaday Prize",
"manufacturing"
] | The purpose of
Geometer
becomes apparent when you realize its simplicity: [David Troetschel]’s project is to create an easily understandable design tool that encourages goal-oriented design. The kit comes with physical components and digital counterparts that can be combined in a modular way. They each have a specific ... | 27 | 16 | [
{
"comment_id": "6188161",
"author": "aurizona",
"timestamp": "2019-10-18T18:38:36",
"content": "Looks as if it could be adapted to models and molecules and assorted protein structures with a number of added standard angles of intersection and even a part where you can choose the angle and print it... | 1,760,373,721.581416 | ||
https://hackaday.com/2019/10/18/speakers-taking-the-stage-at-supercon-plus-a-hint-of-the-hacking-to-come/ | Speakers Taking The Stage At Supercon Plus A Hint Of The Hacking To Come | Mike Szczys | [
"cons",
"Featured"
] | [
"2019 Hackaday Superconference",
"Supercon",
"talks"
] | Four weeks from today the
Hackaday Superconference
comes alive for the fifth year. From engineering in challenging environments to elevating the art form of electronics, here are nine more talks that will make this a year to remember.
In addition to the slate of speakers below
there
are
three
other
announcements
, plus... | 3 | 1 | [
{
"comment_id": "6188154",
"author": "Truth",
"timestamp": "2019-10-18T17:55:45",
"content": "You might want to change the above ( “Michael Ossmann >>>amd<<< Kate Temkin\" ) to \"and\" . And you can delete this comment.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comme... | 1,760,373,721.670396 | ||
https://hackaday.com/2019/10/18/hackaday-podcast-040-3d-printed-everything-strength-v-toughness-blades-of-fiber-and-what-cant-coffee-do/ | Hackaday Podcast 040: 3D Printed Everything, Strength V Toughness, Blades Of Fiber, And What Can’t Coffee Do? | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"3d prining",
"7-segment display",
"coffee",
"gear box",
"Hackaday Podcast",
"hoveboard",
"prusa",
"Prusa Mini",
"restoration",
"robot",
"tank",
"toggle switch",
"Wind turbine"
] | Hackaday Editors Mike Szczys and Elliot Williams opine on the coolest hacks we saw this week. This episode is heavy with 3D printing as Prusa released a new, smaller printer, printed gearboxes continue to impress us with their power and design, hoverboards are turned into tanks, and researchers suggest you pour used co... | 0 | 0 | [] | 1,760,373,721.622353 | ||
https://hackaday.com/2019/10/18/the-true-cost-of-multimeters/ | The True Cost Of Multimeters | Al Williams | [
"Tool Hacks"
] | [
"cheap",
"multimeter"
] | If you are building a home shop, it is common to try to get the cheapest gear you can possibly get. However, professionals often look at TCO or total cost of ownership. Buying a cheap car, for example, can cost more in the long run compared to buying an expensive car that requires less maintenance. Most consumers will ... | 70 | 30 | [
{
"comment_id": "6188103",
"author": "RetiredHobgoblin",
"timestamp": "2019-10-18T15:43:59",
"content": "TP9605BT eats batteries even when it turns off….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6188106",
"author": "Jonathan Bennett",
"timestamp"... | 1,760,373,721.784602 | ||
https://hackaday.com/2019/10/18/this-week-in-security-a-digital-cafe-americain-the-linux-bugs-that-werent-the-great-nation-and-more/ | This Week In Security: A Digital Café Américain, The Linux Bugs That Weren’t, The Great Nation, And More | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"Android Malware",
"This Week in Security"
] | A government is going after a human rights activists in Morocco
. It sounds familiar, but I don’t think Humphrey Bogart is running the gin joint this time around.
Questionable Casablanca references aside, Amnesty International has reported another attack against human rights workers. In this case, a pair of Moroccan ac... | 16 | 8 | [
{
"comment_id": "6188091",
"author": "gregg4",
"timestamp": "2019-10-18T14:45:41",
"content": "I wonder if that guy got back his money?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6188097",
"author": "Jonathan Bennett",
"timestamp": "2019-... | 1,760,373,721.845505 | ||
https://hackaday.com/2019/10/18/lessons-learned-building-a-diy-rebreather/ | Lessons Learned Building A DIY Rebreather | Tom Nardi | [
"chemistry hacks",
"Wearable Hacks"
] | [
"diving",
"rebreather",
"scuba",
"underwater"
] | While the
homebrew rebreather the [AyLo] describes on his blog
looks exceptionally well engineered and is documented to a level we don’t often see, he still makes it
very
clear that he’s not suggesting you actually build one yourself. He’s very upfront about the fact that he has no formal training, and notes that he’s ... | 41 | 10 | [
{
"comment_id": "6188042",
"author": "Saabman",
"timestamp": "2019-10-18T11:12:58",
"content": "neat Ive never looked at a scuba rebreather before but looks just like the way an anesthetic machine operates, just without the ventilator to drive the breathing.",
"parent_id": null,
"depth": 1,
... | 1,760,373,722.108831 | ||
https://hackaday.com/2019/10/18/next-level-spirit-level-is-on-the-level/ | Next Level Spirit Level Is On The Level | Kristina Panos | [
"classic hacks"
] | [
"borosilicate glass",
"level",
"optical contact binding",
"optics",
"spirit level"
] | Miss your shot and scratch on the eight ball? It’s natural to blame the table for not being level so you can save face, but in all likelihood, you’re probably right. [Huygens Optics]’s father never misses a billiards shot on his home table, until one day he did. [Huygens Optics] rushed to his aid and
built an extremely... | 10 | 6 | [
{
"comment_id": "6188015",
"author": "qwert",
"timestamp": "2019-10-18T08:12:48",
"content": "Super similar to how one grinds and finishes a telescope lens or mirror! Never would have thought to use it for this purpose but it’s perfect. Sorry if this was mentioned in the video, I don’t have sound a... | 1,760,373,721.892882 | ||
https://hackaday.com/2019/10/17/robot-allows-remote-colleagues-to-enjoy-office-shenanigans/ | Robot Allows Remote Colleagues To Enjoy Office Shenanigans | Anool Mahidharia | [
"Raspberry Pi",
"Robots Hacks"
] | [
"computer vision",
"IoT",
"machine learning",
"PoseNet",
"raspberry pi robot",
"Raspberry Pi Zero W",
"telepresence robot",
"UV4L",
"WebRTC"
] | [Esther Rietmann] and colleagues built a
Telepresence Robot
to allow work at home teammates to have a virtual, but physical presence in the office. A telepresence robot is like a tablet mounted on a Roomba, providing motion capability in addition to an audio/video connection. Built during a 48 hour hackathon, it is a b... | 3 | 1 | [
{
"comment_id": "6187994",
"author": "Foobacca",
"timestamp": "2019-10-18T05:27:04",
"content": "“sensor suite for collusion avoidance”… Clearly there to prevent SHENANIGANS during work hours XD",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6188022",
... | 1,760,373,721.974797 | ||
https://hackaday.com/2019/10/17/bluetooth-control-with-chrome/ | Bluetooth Control With Chrome | Al Williams | [
"Arduino Hacks",
"Wireless Hacks"
] | [
"bluetooth",
"chrome",
"processing"
] | All the cool projects now can connect to a computer or phone for control, right? But it is a pain to create an app to run on different platforms to talk to your project. [Kevin Darrah] says no and shows how you can use Google Chrome to do the dirty work. He takes a garden-variety Arduino and a cheap Bluetooth interface... | 4 | 3 | [
{
"comment_id": "6187976",
"author": "Finnius de la Lettuice",
"timestamp": "2019-10-18T02:39:37",
"content": "More and more of device features are becoming available through the browser. A number of entities are trying to elevate users to interacting with computers of any sort *only* through the br... | 1,760,373,721.935559 | ||
https://hackaday.com/2019/10/17/open-source-arm-puts-robotics-within-reach/ | Open-Source Arm Puts Robotics Within Reach | Kristina Panos | [
"Robots Hacks"
] | [
"6-DOF",
"arduino mega",
"closed loop",
"closed loop control",
"diy robot arm",
"six-axis robot",
"Teensy 3.5"
] | In November 2017, we showed you
[Chris Annin]’s open-source 6-DOF robot arm
. Since then he’s been improving the arm and making it more accessible for anyone who doesn’t get to play with industrial robots all day at work. The biggest improvement is that AR2 had a closed-loop control system, and AR3 is open-loop. If som... | 16 | 11 | [
{
"comment_id": "6187950",
"author": "Alan Kilian",
"timestamp": "2019-10-17T23:28:49",
"content": "OH! After watching the video it’s good to verify you mixed up “open-loop” and “closed-loop” in your article.Whew!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id"... | 1,760,373,722.029254 | ||
https://hackaday.com/2019/10/17/balance-box-game-requires-a-steady-hand/ | Balance Box Game Requires A Steady Hand | Lewin Day | [
"Arduino Hacks"
] | [
"balance",
"MEMS",
"mpu6050"
] | In the distant past, engineers used exotic devices to measure orientation, such as large mechanical gyros and mercury tilt switches. These are all still useful methods, but for many applications MEMS motions devices have become the gold standard.
When [g199] set out to build their Balance Box game, it was no exception.... | 3 | 2 | [
{
"comment_id": "6188026",
"author": "Jan",
"timestamp": "2019-10-18T09:13:31",
"content": "“inordinately more expensive only 10 to 20 years ago”funny… 10 or 20 years ago they had mercury and metal balls, these are affected to gravity and therefore can detect passing a certain “tilt” level just as e... | 1,760,373,722.183984 |
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