Split (1)

train · 54.6k rows

url stringlengths 37 208	title stringlengths 4 148	author stringclasses 173 values	categories listlengths 0 12	tags listlengths 0 27	featured_image stringlengths 0 272	content stringlengths 0 56.1k	comments_count int64 0 900	scraped_comments_count int64 0 50	comments listlengths 0 50	scraped_at float64 1.76B 1.76B
https://hackaday.com/2019/01/23/leo-repairs-a-midi-sequencer/	[Leo] Repairs A MIDI Sequencer	Al Williams	[ "Repair Hacks", "Teardown" ]	[ "hot air", "midi", "repair", "smd", "surface mount", "teardown" ]	https://hackaday.com/wp-…1/midi.png?w=800	We all have that friend who brings us their sad busted electronics. In [Leo’s] case, he had a MIDI sequencer from a musician friend . It had a dead display and the manufacturer advised that a driver IC was probably bad, even sending a replacement surface mount part. [Leo] wasn’t convinced though. He knew that people we...	7	1	[ { "comment_id": "5814230", "author": "Ostracus", "timestamp": "2019-01-24T05:55:13", "content": "“Check out the massive power supply repair, for example. Or the cleanup after a computer took a bath in battery guts.”Guess my phone’s salvageable after a dunking.", "parent_id": null, "depth": 1...	1,760,374,066.828603
https://hackaday.com/2019/01/23/amateur-astronomers-spot-meteorite-impact-during-lunar-eclipse/	Amateur Astronomers Spot Meteorite Impact During Lunar Eclipse	Brian Benchoff	[ "News", "Science" ]	[ "Cha", "meteor", "meteor impact", "moon", "The Moon" ]	https://hackaday.com/wp-…hemoon.jpg?w=800	According to ancient astronaut theorists, the lunar eclipse this weekend had an unexpected visitor. Right around the time of totality, a meteoroid crashed into the moon , and it was visible from Earth. Meteoroids crash into the Earth and Moon all the time, although this usually happens either over the ocean (70% of the...	39	10	[ { "comment_id": "5814150", "author": "NoseyNick", "timestamp": "2019-01-24T03:02:43", "content": "Some scientists crashed 2.2 tons into the moon at 2.5km/s…Why does this sound like the dastardly plot of a James Bond villain or something?", "parent_id": null, "depth": 1, "replies": [ ...	1,760,374,067.187823
https://hackaday.com/2019/01/23/motorizing-an-ikea-skarsta-table/	Motorizing An IKEA SKARSTA Table	Tom Nardi	[ "Arduino Hacks", "home hacks" ]	[ "desk", "gearmotor", "ikea", "motorized", "rotary encoder", "standing desk" ]	https://hackaday.com/wp-…a_feat.jpg?w=800	We’ve been told that standing at a desk is good for you, but unless you’re some kind of highly advanced automaton you’re going to have to sit down eventually no matter what all those lifestyle magazines say. That’s where desks like the IKEA SKARSTA come in; they use a crank on the front to raise and lower the desk to w...	38	16	[ { "comment_id": "5813916", "author": "Ø", "timestamp": "2019-01-23T21:06:41", "content": "If you ever need a low voltage & speed but high torque DC motor, then wiper motors from older cars work fine.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5814057", ...	1,760,374,067.309997
https://hackaday.com/2019/01/23/color-sensor-demystified/	Color Sensor Demystified	Al Williams	[ "Arduino Hacks" ]	[ "arduino", "color", "photodiode", "sensor" ]	https://hackaday.com/wp-…alls-1.png?w=800	When [millerman4487] bought a TCS230-based color sensor, he was expecting a bit more documentation. Since he didn’t get it, he did a little research and some experimentation and wrote it up to help the rest of us . The TCS3200 uses an 8×8 array of photodiodes. The 64 diodes come in four groups of 16. One group has a bl...	13	6	[ { "comment_id": "5813818", "author": "Luke", "timestamp": "2019-01-23T19:56:46", "content": "And unless you use a broad spectrum light source, you won’t get meaningful results.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5814036", "author": "macsi...	1,760,374,066.879578
https://hackaday.com/2019/01/23/howto-docker-databases-and-dashboards-to-deal-with-your-data/	Howto: Docker, Databases, And Dashboards To Deal With Your Data	Inderpreet Singh	[ "Raspberry Pi" ]	[ "analysis", "dashboard", "docker", "grafana", "IoT", "sensor" ]	https://hackaday.com/wp-…atured.jpg?w=800	So you just got something like an Arduino or Raspberry Pi kit with a few sensors. Setting up temperature or motion sensors is easy enough. But what are you going to do with all that data? It’s going to need storage, analysis, and summarization before it’s actually useful to anyone. You need a dashboard! But even before...	36	14	[ { "comment_id": "5813753", "author": "Ostracus", "timestamp": "2019-01-23T18:25:04", "content": "Say the title three times fast. :-)", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5813769", "author": "Kevin Kessler", "timestamp": "2019-01-23T18:56:49",...	1,760,374,066.961765
https://hackaday.com/2019/01/23/the-vectrex-projector-weve-been-waiting-for/	The Vectrex Projector We’ve Been Waiting For	Lewin Day	[ "News" ]	[ "vector", "vectrex" ]	https://hackaday.com/wp-…better.jpg?w=800	Unlike most old consoles, the Vectrex is unique for having a vector-based display. This gives it a very different look to most of its contemporaries, and necessitated a built-in display, as regular televisions aren’t built to take vector signals. Not one to be limited to the stock screen size, [Arcade Jason] decided th...	12	6	[ { "comment_id": "5813725", "author": "MK 2", "timestamp": "2019-01-23T17:21:57", "content": "drool… ive always wanted a Vectrex but my parents didnt agree", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5813759", "author": "Steven", "timestamp...	1,760,374,067.006908
https://hackaday.com/2019/01/23/the-short-and-tragic-story-of-life-on-the-moon/	The Short And Tragic Story Of Life On The Moon	Tom Nardi	[ "Current Events", "Featured", "Slider", "Space" ]	[ "biology", "china", "environmental monitoring", "greenhouse", "life", "moon", "nasa", "seeds" ]	https://hackaday.com/wp-…tured.jpeg?w=800	The Moon is a desolate rock, completely incapable of harboring life as we know it. Despite being our closest celestial neighbor, conditions on the surface couldn’t be more different from the warm and wet world we call home. Variations in surface temperature are so extreme, from a blistering 106 C (223 F) during the lun...	66	17	[ { "comment_id": "5813666", "author": "Blerik", "timestamp": "2019-01-23T15:12:58", "content": "A full Lunar day is 29.5 Earth days. So a Lunar night is only half of that.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5813681", "author": "Ren", ...	1,760,374,067.577541
https://hackaday.com/2019/01/23/adventures-in-photopolymers-with-ben-krasnow/	Adventures In Photopolymers With Ben Krasnow	Brian Benchoff	[ "Art", "Tool Hacks" ]	[ "photoemulsion", "screen printing", "Screenprinting" ]	https://hackaday.com/wp-…creen2.png?w=800	There is a technology that will allow you to add inks, resins, and paints to any flat surface. Screen printing has been around since forever, and although most of the tutorials and guides out there will tell you how to screen print onto t-shirts, [Ben Krasnow] had the idea of putting patterns of paint on acrylic, metal...	7	6	[ { "comment_id": "5813602", "author": "Peter A Neilson", "timestamp": "2019-01-23T12:36:32", "content": "“You will not get a good screen print if there is not direct contact between your photomask and your photoemulsion.”IIRC the offset shop that printed our local newspaper half a century ago used a ...	1,760,374,067.231798
https://hackaday.com/2019/01/23/crisp-clean-shortcuts/	Crisp Clean Shortcuts	Brian McEvoy	[ "Peripherals Hacks" ]	[ "encoder", "hid", "interface", "keyboard", "macro", "microsoft surface", "rotary", "shortcut", "surface", "Teensy" ]	https://hackaday.com/wp-…ortcut.jpg?w=800	People always tell us that their favorite part about using a computer is mashing out the exact same key sequences over and over, day in, day out. Then, there are people like [Benni] who would rather make a microcontroller do the repetitive work at the touch of a stylish USB peripheral . Those people who enjoy the extra...	23	13	[ { "comment_id": "5813504", "author": "jensma.de (@jensma_de)", "timestamp": "2019-01-23T09:22:33", "content": "sick hack", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5813510", "author": "dave", "timestamp": "2019-01-23T10:11:12", "content": "If o...	1,760,374,067.36749
https://hackaday.com/2019/01/22/the-xerox-star-on-a-desktop-near-you/	The Xerox Star On A Desktop Near You	Al Williams	[ "Retrocomputing" ]	[ "parc", "retrocomputing", "star", "Xerox", "xerox star" ]	https://hackaday.com/wp-…1/star.png?w=800	It is 1980-something and you see someone typing on a keyboard. The display is graphical, and they use a mouse to finish a document, send it over the network to another similar computer, where another user edits it a bit and prints it on a laser printer. Given the time-frame you might think the computer is a Mac, but yo...	51	17	[ { "comment_id": "5813440", "author": "Bruce Perens K6BP", "timestamp": "2019-01-23T06:41:42", "content": "The CPU was based on the AM2900 bit-slice chips, like most other CPUs of that day. DEC, Data General, HP, Tektronix, ATT, Feranti, Atari arcade machine. I wrote microcode for the Pixar Image Com...	1,760,374,067.471904
https://hackaday.com/2019/01/22/understanding-modulated-rf-with-w2aew/	Understanding Modulated RF With [W2AEW]	Al Williams	[ "Radio Hacks", "Tool Hacks" ]	[ "am", "amplitude modulation", "radio frequency", "RF", "rf modulation", "single-sideband", "ssb" ]	https://hackaday.com/wp-…/scope.png?w=800	There was a time — not long ago — when radio and even wired communications depended solely upon Morse code with OOK (on off keying). Modulating RF signals led to practical commercial radio stations and even modern cell phones. Although there are many ways to modulate an RF carrier with voice AM or amplitude modulation ...	10	5	[ { "comment_id": "5813382", "author": "W2AEW - Alan", "timestamp": "2019-01-23T04:11:50", "content": "Thank you for featuring my video!", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5813678", "author": "problemchild68", "timestamp": "2019-01-...	1,760,374,067.688034
https://hackaday.com/2019/01/22/build-a-seismometer-out-of-plumbing-parts/	Build A Seismometer Out Of Plumbing Parts	Lewin Day	[ "Science" ]	[ "earthquake", "earthquakes", "science", "seismometer" ]	https://hackaday.com/wp-…/450-4.png?w=800	For those outside the rocking and rolling of California’s tectonic plate, earthquakes probably don’t come up on a daily basis as a topic of conversation. Regardless, the instrument to measure them is called a seismometer, and it’s entirely possible to build one yourself. [Bob LeDoux] has shared his article on how to bu...	27	10	[ { "comment_id": "5813276", "author": "Paul", "timestamp": "2019-01-23T00:51:57", "content": "Interesting idea. I’m glad that report includes a bunch of references — it’s pretty thin on theory of operation and explanation of the circuit. They must have iterated on that orifice diameter quite a bit:...	1,760,374,067.641923
https://hackaday.com/2019/01/22/a-drum-set-in-your-pocket/	A Drum Set In Your Pocket	Brian McEvoy	[ "Musical Hacks" ]	[ "drum", "drum machine", "Fasma", "hat", "kick", "music", "op-amp", "opamp", "pcb", "snare", "Teensy", "tom" ]	https://hackaday.com/wp-…-set-1.jpg?w=800	Cargo pants can fit drumsticks in the pockets if you don’t mind them sticking out. They can also hold this drum set and still have enough room for a pair of headphones, some pens, and a small notebook. At least, guy’s cargo pants can fit all that. Now your pocket is decked out with enough music gear to compose and drum...	3	2	[ { "comment_id": "5813138", "author": "TGT", "timestamp": "2019-01-22T21:04:15", "content": "I certainly dig the Voyager pulsar map on there", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5813188", "author": "Grebs", "timestamp": "2019-01-22T2...	1,760,374,068.219621
https://hackaday.com/2019/01/22/raspberry-pi-jukebox-hits-all-the-right-notes/	Raspberry Pi Jukebox Hits All The Right Notes	Tom Nardi	[ "digital audio hacks", "Musical Hacks", "Raspberry Pi" ]	[ "jukebox", "raspberry pi", "stain", "varnish", "waveshare", "woodworking" ]	https://hackaday.com/wp-…e_feat.jpg?w=800	We (and by extension, you) have seen the Raspberry Pi crammed into nearly every piece of gear imaginable. Putting one inside a game console is so popular it’s bordering on a meme, and putting them into old stereos and other pieces of consumer electronics isn’t far behind. It’s always interesting to see how hackers graf...	2	2	[ { "comment_id": "5813212", "author": "Ryan Collins", "timestamp": "2019-01-22T22:41:34", "content": "Those are two eighth notes, not one. :-)", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5813482", "author": "Jan", "timestamp": "2019-01-23T08:06:48", ...	1,760,374,068.266269
https://hackaday.com/2019/01/22/the-1859-carrington-event/	The 1859 Carrington Event	Dan Maloney	[ "Biography", "Hackaday Columns", "Slider", "Space" ]	[ "coronal mass ejections", "Richard Carrington", "solar flare", "solar storm", "The Carrington Event" ]	https://hackaday.com/wp-…atured.jpg?w=800	Like many Victorian gentlemen of means, Richard Carrington did not need to sully himself with labor; instead, he turned his energies to the study of natural philosophy. It was the field of astronomy to which Carrington would apply himself, but unlike other gentlemen of similar inclination, he began his studies not as t...	59	14	[ { "comment_id": "5813072", "author": "Ren", "timestamp": "2019-01-22T18:17:09", "content": "Today, it would result in the end of civilization as we know it…Get out the candles, and bicycles, it is 1889 all over again!", "parent_id": null, "depth": 1, "replies": [ { "comment...	1,760,374,068.461311
https://hackaday.com/2019/01/22/open-sourced-carbon-fiber-rod-ends/	Open Sourced Carbon Fiber Rod Ends	Lewin Day	[ "classic hacks" ]	[ "carbon fiber", "carbon fiber rod" ]	https://hackaday.com/wp-…1/4450.jpg?w=800	Modellers and makers who have been around the block for a few decades generally have their preferred materials. Balsa wood, sheet metal, brass tube… these were all staples of the hobbyist workshop. Composites are very much the new kid on the block and are starting to gain more of a foothold in the hobby marketplace. [A...	18	9	[ { "comment_id": "5813022", "author": "Thomas Brusehaver", "timestamp": "2019-01-22T16:59:37", "content": "Aluminum and carbon fiber don’t mix:https://www.corrosionpedia.com/galvanic-corrosion-of-metals-connected-to-carbon-fiber-reinforced-polymers/2/1556Galvonic corrosion is common when CF is in con...	1,760,374,068.664459
https://hackaday.com/2019/01/22/crash-your-code-lessons-learned-from-debugging-things-that-should-never-happen/	Crash Your Code – Lessons Learned From Debugging Things That Should Never Happen™	Sven Gregori	[ "Featured", "Skills", "Slider", "Software Development" ]	[ "c programming", "clang", "code analysis", "debugging", "gcc", "programming", "software development", "software quality" ]	https://hackaday.com/wp-…atured.png?w=800	Let’s be honest, no one likes to see their program crash. It’s a clear sign that something is wrong with our code, and that’s a truth we don’t like to see. We try our best to avoid such a situation, and we’ve seen how compiler warnings and other static code analysis tools can help us to detect and prevent possible flaw...	58	24	[ { "comment_id": "5812980", "author": "BT", "timestamp": "2019-01-22T15:45:50", "content": "I remember back in the day…the original IBM PC 5150 had parity-checked RAM, and if a parity error occurred it cleared the screen, printed “PARITY ERROR” and hung. This used to happen occasionally and drove me ...	1,760,374,068.884305
https://hackaday.com/2019/01/22/new-part-day-small-cheap-and-good-lidar-modules/	New Part Day: Small, Cheap, And Good LIDAR Modules	Brian Benchoff	[ "Hackaday Columns", "hardware" ]	[ "lidar", "lidar module", "Livox", "New Part Day" ]	https://hackaday.com/wp-…/lidar.png?w=800	Fully autonomous cars might never pan out, but in the meantime we’re getting some really cool hardware designed for robotic taxicab prototypes. This is the Livox Mid-40 Lidar , a LIDAR module you can put on your car or drone. The best part? It only costs $600 USD. The Livox Mid-40 and Mid-100 are two modules released b...	40	16	[ { "comment_id": "5812882", "author": "Ostracus", "timestamp": "2019-01-22T12:22:26", "content": "High-precision mapping is how I see most using this. DIY autonomous cars might be second ala DARPA Grand Challenge.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "...	1,760,374,068.789718
https://hackaday.com/2019/01/22/screen-shake-in-vr-minus-the-throwing-up/	Screen Shake In VR, Minus The Throwing Up	Donald Papp	[ "Games", "Software Development", "Virtual Reality" ]	[ "concussion", "fps", "impact", "screen shake", "unity", "vr" ]	https://hackaday.com/wp-…atured.png?w=800	In first-person games, an effective way to heighten immersion is to give the player a sense of impact and force by figuratively shaking the camera. That’s a tried and true practice for FPS games played on a monitor, but to [Zulubo]’s knowledge, no one has implemented traditional screen shake in a VR title because it wo...	5	4	[ { "comment_id": "5812834", "author": "Ryoku", "timestamp": "2019-01-22T10:10:49", "content": "as someone invested in VR already I think this is a good investigation of an already well established concept. truth be told most subtle shake that users are aware of is just a distortion of the eyeball in ...	1,760,374,068.364056
https://hackaday.com/2019/01/21/buy-your-very-own-commercial-flight-simulator/	Buy Your Very Own Commercial Flight Simulator	Maya Posch	[ "Transportation Hacks" ]	[ "auctions", "bombardier", "crj200", "flight simulator" ]	https://hackaday.com/wp-…t_800x.jpg?w=800	If you happen to live near Phoenix, Arizona, have a spare US$10,000 or so kicking around, and have always fancied your own true-to-life commercial flight simulator, today is your lucky day. With just over a week to go on the auction , you can bid on a used flight simulator for a Bombardier CRJ200 regional jet airliner....	25	13	[ { "comment_id": "5812732", "author": "Robert Mateja", "timestamp": "2019-01-22T06:05:59", "content": "…or for $3500 make pilot licence in Czech Republic and for what’s left rent a plane for true fun.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5812923", ...	1,760,374,068.32293
https://hackaday.com/2019/01/21/printing-christmas-cards-the-hard-way/	Printing Christmas Cards The Hard Way	Ted Yapo	[ "Holiday Hacks", "Misc Hacks" ]	[ "letterpress", "Linotype", "MICR font", "printing" ]	https://hackaday.com/wp-…atured.jpg?w=800	Printing customized Christmas cards is a trivial matter today: choose a photo, apply a stock background or border, add the desired text, and click a few buttons. Your colorful cards arrive in a few days. It may be the easiest way, but it’s definitely no where near as cool as the process [linotype] used this season . (E...	5	4	[ { "comment_id": "5812691", "author": "Nate B", "timestamp": "2019-01-22T04:37:15", "content": "A modern kerspace can do SO MUCH with type and printing.Printing folks are boggled* by the absurdly expensive photopolymer plates that we now think of as a resin 3d print.Oh, and regular FDM makes neat p...	1,760,374,068.614582
https://hackaday.com/2019/01/21/to-make-reproduction-train-whistles-the-old-ways-are-best/	To Make Reproduction Train Whistles, The Old Ways Are Best	Donald Papp	[ "Art", "classic hacks", "Musical Hacks" ]	[ "art", "brass", "casting", "engineering", "lathe", "locomotive", "Newcastle", "steam", "train", "vintage", "whistle" ]	https://hackaday.com/wp-…130062.jpg?w=800	Late last year, artist [Steve Messam]’s project “Whistle” involved 16 steam engine whistles around Newcastle that would fire at different parts of the day over three months. The goal of the project was bring back the distinctive sound of the train whistles which used to be fixture of daily life, and to do so as authent...	9	5	[ { "comment_id": "5812596", "author": "koldCathode", "timestamp": "2019-01-22T00:44:04", "content": "Fascinating. Had no idea how tricky they were to machine. Clever to use it as an apprentice’s training.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5812685",...	1,760,374,068.715451
https://hackaday.com/2019/01/21/building-a-3d-printer-that-goes-where-you-do/	Building A 3D Printer That Goes Where You Do	Tom Nardi	[ "3d Printer hacks" ]	[ "battery power", "boost converter", "printrbot", "PrintrBot Play", "Sony NP-F" ]	https://hackaday.com/wp-…b_feat.jpg?w=800	Back when one of the best paths to desktop 3D printer ownership was building the thing yourself from laser cut wood with some string thrown in for good measure, just saying you had one at home would instantly boost your hacker street cred. It didn’t even need to work particularly well (which is good, since it probably ...	13	7	[ { "comment_id": "5812498", "author": "Spacedog", "timestamp": "2019-01-21T21:49:09", "content": "Sanladerer’s been knocking it out of the park this past year, He recently posted an interview with Adrian Bowyer – Undisputed inverter/discoverer of affordable home 3D printing via the reprap project. We...	1,760,374,068.978077
https://hackaday.com/2019/01/21/hackaday-superconference-3d-printing-for-electronics/	Hackaday Superconference: 3D Printing For Electronics	Brian Benchoff	[ "3d Printer hacks", "cons", "Hackaday Columns" ]	[ "2018 Hackaday Superconference", "3d modeling", "cosplay", "design" ]	https://hackaday.com/wp-…bright.png?w=800	For her day job, Amie D Dansby works as a software simulation developer, creating simulations for video games. In her free time, she’s implanting the key to her Tesla in her arm , building cordwood jewelry and cosplay swords , and seeking out other adventures in electronics and 3D printing. Amie has made a name for her...	12	4	[ { "comment_id": "5812454", "author": "Ostracus", "timestamp": "2019-01-21T20:24:37", "content": "“For her day job, Amie D Dansby works as a software simulation developer, creating simulations for video games. ”Sounds interesting too.", "parent_id": null, "depth": 1, "replies": [] }, ...	1,760,374,069.478298
https://hackaday.com/2019/01/21/anatomy-of-a-cloned-piece-of-hardware/	Anatomy Of A Cloned Piece Of Hardware	Jenny List	[ "Business", "Hackaday Columns", "hardware", "Retrocomputing" ]	[ "bootleg", "clone", "sinclair zx80", "zx80" ]	https://hackaday.com/wp-…atured.jpg?w=800	What would you think if you saw a bootleg of a product you design, manufacture, and sell pop up on eBay? For those of us who don’t make our livelihood this way, we might secretly hope our blinkenlight project ends up being so awesome that clones on AliExpress or TaoBao end up selling in the thousands . But of course an...	58	16	[ { "comment_id": "5812357", "author": "Ren", "timestamp": "2019-01-21T18:15:36", "content": "One of the electronic devices my employer sells has been cloned (poorly) and shows up on That Auction Site for less than what we sell ours for. When the clones break down, we get them sent in for repair, and...	1,760,374,069.677838
https://hackaday.com/2019/01/21/open-source-synthesizers-hack-chat/	Open Source Synthesizers Hack Chat	Dan Maloney	[ "Hackaday Columns" ]	[ "digital", "electronic music", "Hack Chat", "modular", "music", "polyphonic", "synthesizer" ]	https://hackaday.com/wp-…atured.jpg?w=800	Matt Bradshaw is a musician, maker, and programmer with a degree in physics and a love for making new musical instruments. You may remember his PolyMod modular digital synthesizer from the 2018 Hackaday Prize, where it made the semifinals of the Musical Instrument Challenge. PolyMod is a customizable, modular synthesiz...	2	1	[ { "comment_id": "5812584", "author": "Dan", "timestamp": "2019-01-22T00:29:56", "content": "Maybe I’m out of the loop, but have these been moved to Wednesdays recently? I remember them being Friday in the past.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "...	1,760,374,069.581828
https://hackaday.com/2019/01/21/human-augmentation-for-weight-loss/	Human Augmentation For Weight Loss	Brian McEvoy	[ "Medical Hacks", "News" ]	[ "cyborg", "hunger", "implant", "stomach", "weight loss" ]	https://hackaday.com/wp-…s-feat.jpg?w=800	If you read almost any article about powered human implants, you will encounter the same roadblock, “it could be so much better with more powerful batteries.” Our fleshy power systems are different from electrical systems, but we are full of moving parts, so [Xudong Wang] and fellow researchers have harnessed that powe...	17	8	[ { "comment_id": "5812209", "author": "Con Cerned", "timestamp": "2019-01-21T16:37:26", "content": "I don’t know about this. The truly obese people I have known seemed to have more of a psychological need to eat than a feeling that they are still hungry. Worse, if this goes wrong I can imagine a pers...	1,760,374,069.940897
https://hackaday.com/2019/01/21/alexa-remind-me-of-the-first-time-your-product-category-failed/	Alexa, Remind Me Of The First Time Your Product Category Failed	Brian Benchoff	[ "Hackaday Columns", "home hacks", "Rants", "Slider" ]	[ "alexa", "Audrey", "compaq", "Internet Appliance", "MSN TV" ]	https://hackaday.com/wp-…header.jpg?w=800	For the last few years, the Last Great Hope™ of the consumer electronics industry has been voice assistants. Alexas and Echos and Google Homes and Facebook Portals are all the rage. Over one hundred million Alexa devices have been sold , an impressive feat given that there are only about 120 Million households in the U...	94	32	[ { "comment_id": "5812024", "author": "Col. Panek", "timestamp": "2019-01-21T15:05:24", "content": "I’ll buy a Facebook Portal at their fire sale, if it’s hackable.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5812058", "author": "Canuckfire", ...	1,760,374,069.817182
https://hackaday.com/2019/01/21/front-door-camera-sends-automatic-alerts-by-text/	Front Door Camera Sends Automatic Alerts By Text	Lewin Day	[ "classic hacks" ]	[ "camera", "internet of things", "jevois", "jevois camera", "smart camera", "twilio" ]	https://hackaday.com/wp-…/450-2.png?w=800	In these turbulent times, journalists fearmonger and honest citizens fear for the safety of their homes and themselves. Adding some security features can allay these fears, and with the advent of cheap technology, front door cameras have become popular. There’s a wide array of options on the market, but short of watchi...	25	10	[ { "comment_id": "5811805", "author": "Adobe/Flash hater", "timestamp": "2019-01-21T13:02:26", "content": "Is anyone still building surveillance setups that are off line?Because of what is available to me, I’d have to use some older hardware (single core PCs) to just capture the video and, (if hardwa...	1,760,374,069.536386
https://hackaday.com/2019/01/21/the-greatest-computer-ever-now-gets-a-new-injection-molded-clear-case/	The Greatest Computer Ever Now Gets A New, Injection Molded Clear Case	Brian Benchoff	[ "News" ]	[ "68kMLA", "injection molding", "Macintosh SE/30", "retrocomputing", "SE/30" ]	https://hackaday.com/wp-…atured.jpg?w=800	The Macintosh SE/30 is the greatest computer ever made. It was a powerhouse when it was launched almost exactly thirty years ago today. You could stuff 128 Megabytes of RAM into it, an absolutely ludicrous amount of RAM for 1989. You could put Ethernet in it. You could turn the 1-bit black or white internal display int...	55	23	[ { "comment_id": "5811457", "author": "Gregg Eshelman", "timestamp": "2019-01-21T09:06:15", "content": "Some Atari Jaguar fans got white cases because the molds were sold then modified a bit to make fancy cases for intra-oral cameras for dental work. The company making those offered to run off a few ...	1,760,374,070.138436
https://hackaday.com/2019/01/20/sly-guy-nabs-pi-spy/	Sly Guy Nabs Pi Spy	Ted Yapo	[ "News", "Raspberry Pi" ]	[ "digital forensics", "raspberry pi" ]	https://hackaday.com/wp-…-spy-1.png?w=384	When one of [Christian Haschek’s] co-workers found this Raspberry Pi tucked into their network closet, he figured it was another employee’s experiment – you know how that goes. But, of course, they did the safe thing and unplugged it from the network right away. The ensuing investigation into what it was doing there is...	38	15	[ { "comment_id": "5811384", "author": "Ostracus", "timestamp": "2019-01-21T06:22:40", "content": "“But, how did this device get there in the first place? Checking DNS and Radius logs, [Christian] found evidence that an ex-employee with a key may have been in the building when the Pi was first seen on...	1,760,374,069.889374
https://hackaday.com/2019/01/20/building-and-controlling-19-leds-five-buttons-from-five-outputs/	Building And Controlling 19 LEDs & Five Buttons From Five Outputs	Richard Baguley	[ "LED Hacks", "News" ]	[ "charlieplexing", "led", "multiplexing", "Toki Pona" ]	https://hackaday.com/wp-…a-main.jpg?w=800	Numbers are hard enough in English, but [Sadale] decided to take things a step further by building a calculator that works in Toki Pona. The result is Ilo Nanpa , an awesome hardware calculator that works in this synthetic minimal language . This is a bit harder than you might think, because Toki Pona doesn’t have digi...	3	3	[ { "comment_id": "5811381", "author": "Ostracus", "timestamp": "2019-01-21T06:16:37", "content": "Looks like the meat of the language is contained in a $10-20 book or what can be pieced from a forum. As for the rest looks like a nice piece of work.", "parent_id": null, "depth": 1, "replie...	1,760,374,070.174614
https://hackaday.com/2019/01/20/hackaday-links-january-20-2019/	Hackaday Links: January 20, 2019	Brian Benchoff	[ "Hackaday Columns", "Hackaday links" ]	[ "Fortnite", "lego", "lidar", "relativity space", "rockets" ]	https://hackaday.com/wp-…banner.jpg?w=800	Let’s say you’re an infosec company, and you want some free press. How would you do that? The answer is Fortnite . Yes, this is how you hack Fortnite. This is how to hack Fortnite. The phrase ‘how to hack Fortnite’ is a very popular search term, and simply by including that phrase into the opening paragraph of this pos...	18	7	[ { "comment_id": "5810945", "author": "Alan", "timestamp": "2019-01-21T00:11:41", "content": "“Has anyone ever seen more than one Cruise or Waymo car in the same place at the same time?”Answer -> Yes, daily. Not one of them had been issued a white cane.", "parent_id": null, "depth": 1, "...	1,760,374,070.228669
https://hackaday.com/2019/01/20/lathes-tool-holder-holds-a-rotary-tool/	Lathe’s Tool Holder Holds A Rotary Tool	Brian McEvoy	[ "Tool Hacks" ]	[ "anodize", "dremel", "lathe", "machine", "mini lathe", "proxxon", "rotary tool", "upgrade" ]	https://hackaday.com/wp-…holder.jpg?w=800	What is better than a tool? Two. What is better than two? Two tools tooling together. [tintek33] wanted a rotary tool to become an attachment on his mini lathe , the video is also below the break. Fortunately, Dremels and Proxxons are built to receive accessories, or in this case, become one. Even if the exact measurem...	20	8	[ { "comment_id": "5810745", "author": "ekerin", "timestamp": "2019-01-20T21:34:54", "content": "I’ve been wanting to make one of these for my lathe as well. Nice for simple drilling in place, instead of doing a second setup on the mill for simple stuff. Not going to be doing any milling with it, b...	1,760,374,070.346533
https://hackaday.com/2019/01/20/radio-telescopes-horn-in-with-gnu-radio/	Radio Telescopes Horn In With GNU Radio	Al Williams	[ "Radio Hacks", "Space" ]	[ "Radio Telescope", "sdr", "software-defined radio" ]	https://hackaday.com/wp-…/rtele.png?w=800	Who doesn’t like to look up at the night sky? But if you are into radio, there’s a whole different way to look using radio telescopes. [John Makous] spoke at the GNU Radio Conference about how he’s worked to make a radio telescope (PDF) that is practical for even younger students to build and operate. The only real hig...	26	9	[ { "comment_id": "5810658", "author": "jack324", "timestamp": "2019-01-20T18:55:24", "content": "Could a horn be used in place of a dish for satellite reception or is a dish still better for reception?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5810675", ...	1,760,374,070.294015
https://hackaday.com/2019/01/20/cnc-mill-repairs-iphone-7/	CNC Mill Repairs IPhone 7	Lewin Day	[ "Phone Hacks" ]	[ "iphone", "phone repair", "reflow", "smartphone", "smartphone repair" ]	https://hackaday.com/wp-…450-10.jpg?w=800	Modern smartphones are highly integrated devices, bringing immense computing power into the palm of one’s hand. This portable computing power and connectivity has both changed society in innumerable ways, and also tends to lead to said powerful computers ending up dropped on the ground or into toilets. Repairs are ofte...	39	11	[ { "comment_id": "5810560", "author": "Mike Massen", "timestamp": "2019-01-20T15:28:16", "content": "Wouldn’t it be easier and less intrusive with less risk issues to just heat the CPU to the appropriate temperature so it will lift off the ball grid array solder pads – or is it affixed in a different...	1,760,374,070.42023
https://hackaday.com/2019/01/20/cloning-knobs-for-vintage-testing-equipment/	Cloning Knobs For Vintage Testing Equipment	Brian Benchoff	[ "Misc Hacks" ]	[ "casting", "cloning knobs", "knob", "Philco", "resin", "silicone" ]	https://hackaday.com/wp-…philco.png?w=800	Knobs! Shiny candy-colored knobs! The last stand of skeuomorphism is smart light switches! Everyone loves knobs, but when you’re dealing with vintage equipment with a missing knob, the odds of replacing it are slim to none. That’s what happened to [Wesley Treat] when he picked up a vintage Philco tube tester. The teste...	12	7	[ { "comment_id": "5810527", "author": "Monk", "timestamp": "2019-01-20T13:53:09", "content": "I love love love Wesley Treats. One of my favorite Makers on YouTube. So happy to see this on here. You gotta check out his channel.", "parent_id": null, "depth": 1, "replies": [] }, { "...	1,760,374,070.47297
https://hackaday.com/2019/01/20/epsom-salts-restores-lead-acid-battery/	Epsom Salts Restores Lead Acid Battery	Al Williams	[ "chemistry hacks" ]	[ "AvE", "battery", "epsom salt", "epsom salts", "lead acid battery" ]	https://hackaday.com/wp-…attery.png?w=800	Despite a lot of advances in battery technology, lead acid batteries are still used in many applications due to cost and their ability to provide a lot of surge current. But they don’t last forever. However, [AvE] shows that in some cases a failed battery can be restored with — of all things — epsom salts . If it makes...	21	13	[ { "comment_id": "5810413", "author": "JRSmile", "timestamp": "2019-01-20T09:29:26", "content": "Loved the PANIC part.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5810463", "author": "aztraph", "timestamp": "2019-01-20T11:39:14", "content": "That...	1,760,374,070.972804
https://hackaday.com/2019/01/19/strobe-for-wood-turning-makes-inspection-easy/	Strobe For Wood Turning Makes Inspection Easy	Lewin Day	[ "Tool Hacks" ]	[ "lathe", "strobe" ]	https://hackaday.com/wp-…1/4502.jpg?w=800	The lathe is a simple enough tool to understand, but requires much practice to truly master. During the turning process, it’s often necessary to inspect the workpiece. This generally necessitates stopping the lathe, waiting for everything to spin down, and then starting again. This can be a major time sink when added u...	44	14	[ { "comment_id": "5810305", "author": "drenehtsral", "timestamp": "2019-01-20T07:48:27", "content": "That sounds like an awesome tool but one which might lead to anyone prone to being a klutz or a spazz around mechanical things having a momentary brainfart and, falling for the illusion of a stationar...	1,760,374,071.179205
https://hackaday.com/2019/01/19/always-have-a-square-to-spare/	Always Have A Square To Spare	Bryan Cockfield	[ "home hacks" ]	[ "bathroom", "bearing", "dispenser", "home", "magnets", "resistance", "Roll", "toilet paper" ]	https://hackaday.com/wp-…main-5.jpg?w=800	Some aspects of humanity affect all of us at some point in our lives. Whether it’s getting caught in the rain without an umbrella, getting a flat tire on the way to work, or upgrading a Linux package which somehow breaks the entire installation, some experiences are truly universal. Among these is pulling a few squares...	24	13	[ { "comment_id": "5809859", "author": "Jeremy S Cook", "timestamp": "2019-01-20T03:03:38", "content": "Not having to pull off that weird cylinder in the middle would be helpful as well when it comes time to change it.Also good for those with kids!", "parent_id": null, "depth": 1, "replies...	1,760,374,071.099103
https://hackaday.com/2019/01/19/midi-association-announces-midi-2-0-prototyping/	MIDI Association Announces MIDI 2.0 Prototyping	Brian Benchoff	[ "Musical Hacks" ]	[ "midi", "MIDI Association" ]	https://hackaday.com/wp-…header.png?w=800	MIDI was introduced at the 1983 NAMM show as a means to connect various electronic instruments together. Since then, our favorite five-pin DIN has been stuffed into Radio Shack keyboards, MPCs, synths, eurorack modules, and DAWs. The standard basically hasn’t changed. Sure, we have MIDI SysEx messages to configure indi...	22	7	[ { "comment_id": "5809544", "author": "Lou", "timestamp": "2019-01-20T00:19:04", "content": "People still use MIDI ?? It’s been at least a decade since I touched a synthesizer, but I would assume everything is ethernet now no? It’s like 1 billion times faster ground loop isolated, can go the length o...	1,760,374,071.237033
https://hackaday.com/2019/01/19/somewhere-down-in-africa-toto-is-playing-on-loop/	Somewhere Down In Africa Toto Is Playing On Loop	Drew Littrell	[ "Art", "digital audio hacks" ]	[ "africa", "art", "music", "music player", "random" ]	https://hackaday.com/wp-…screen.jpg?w=800	Amidst the vast expanse of sand dunes in the Namib desert, there now exists a sound installation dedicated to pouring out the 1982 soft rock classic “Africa” by Toto . Six speakers connected to an MP3 player all powered by a few solar powered USB battery packs, and it is literally located somewhere down in Africa (see ...	26	12	[ { "comment_id": "5809299", "author": "steelman", "timestamp": "2019-01-19T21:15:42", "content": "Forever? No way! All these plastic parts will degrade quickly when exposed to large amount of UV. Or will be sanded down by the first sandstorm.", "parent_id": null, "depth": 1, "replies": [ ...	1,760,374,071.634884
https://hackaday.com/2019/01/19/automate-your-home-from-the-clearance-rack/	Automate Your Home From The Clearance Rack	Tom Nardi	[ "Holiday Hacks", "Raspberry Pi", "Wireless Hacks" ]	[ "capture", "home automation", "rpitx", "RTL-SDR", "smart plug" ]	https://hackaday.com/wp-…o_feat.jpg?w=800	The month or so after the holidays have always been a great time to pick up some interesting gadgets on steep clearance, but with decorations and lights becoming increasingly complex over the last few years, the “Christmas Clearance” rack is an absolute must see for enterprising hackers. You might just luck out like [M...	22	7	[ { "comment_id": "5809035", "author": "macegr", "timestamp": "2019-01-19T18:13:11", "content": "This is cool…and an interesting way of approaching the problem. But in the interest of getting other people to use these remote control modules, there is a much easier way. They all (depending on your coun...	1,760,374,071.034494
https://hackaday.com/2019/01/19/full-color-dot-matrix-is-the-art-we-need/	Full Color Dot Matrix Is The Art We Need	Brian Benchoff	[ "Art" ]	[ "art", "dot matrix", "ImageWriter", "ImageWriter II" ]	https://hackaday.com/wp-…544109.jpg?w=800	Fans of 80s-era computer printing technology are few and far between, but Apple’s ImageWriter II was a beast of a printer. This tractor feed dot-matrix printer is nigh-indestructible. The print quality was actually pretty great. It was loud as hell, which is a mark of quality electromechanical components. It could do c...	25	14	[ { "comment_id": "5808746", "author": "Ostracus", "timestamp": "2019-01-19T15:20:40", "content": "Ah Dot Matrix and the big enclosures we kept them in to keep from going deaf.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5808834", "author": "Jan", "ti...	1,760,374,071.517845
https://hackaday.com/2019/01/19/unobtanium-bezels-finally-modeled-for-3d-printing/	Unobtanium Bezels Finally Modeled For 3D Printing	Brian Benchoff	[ "3d Printer hacks", "Mac Hacks" ]	[ "3d printed", "bezels", "mac", "macintosh", "Quadra" ]	https://hackaday.com/wp-…header.jpg?w=800	In 1991, Apple released the Quadra line of computers, named after their utilization of the new Motorola 68040 CPU. The Quadra line initially consisted of two models, the Quadra 700 and the Quadra 900. These two models, and the Quadra 950, released as a slight upgrade to the 900, were the peak of performance. You could ...	26	5	[ { "comment_id": "5808504", "author": "Mr Name Required", "timestamp": "2019-01-19T13:46:25", "content": "Yes 3D printing really is the way to bring these old computer panels, bezels and brackets back from the dead and for very little cost. I’ve been doing some repops for the venerable PDP-11, here i...	1,760,374,071.356888
https://hackaday.com/2019/01/19/lime-sdr-and-pluto-too-sends-tv/	Lime SDR (and Pluto, Too) Sends TV	Al Williams	[ "Radio Hacks", "Video Hacks" ]	[ "amateur radio", "atv", "DATV Express", "DVB-S", "DVBS", "ham radio", "Lime SDR", "pluto sdr", "SDRAngel", "tv" ]	https://hackaday.com/wp-…01/atv.png?w=800	If you have experienced software defined radio (SDR) using the ubiquitous RTL SDR dongles, you are missing out on half of it. While those SDRs are inexpensive, they only receive. The next step is to transmit. [Corrosive] shows how he uses DATV Express along with a Lime SDR or a Pluto (the evaluation device from Analog ...	21	5	[ { "comment_id": "5808790", "author": "Shane", "timestamp": "2019-01-19T15:42:53", "content": "So very irresponsible to not even mention the fact transmitting without a license unless into a non radiating load is illegal in the US and most other developed countries.If you want to do cool shit like th...	1,760,374,071.295571
https://hackaday.com/2019/01/18/is-that-a-vintage-computer-in-your-pocket/	Is That A Vintage Computer In Your Pocket?	Al Williams	[ "Retrocomputing" ]	[ "edsac", "retrocomputing", "Teensy" ]	https://hackaday.com/wp-…/edsac.png?w=800	There’s a lot of debate over which of several contenders was the first modern computer. One of those first operating computers was the University of Cambridge’s EDSAC — the brainchild of Dr. Maurice Wilkes. The EDSAC scored a lot of firsts and used a serial data path along with mercury delay line memories. Over on Hack...	19	12	[ { "comment_id": "5807629", "author": "Ostracus", "timestamp": "2019-01-19T08:17:10", "content": "Imagine the EPA might have had an issue if mercury had been used. Maybe he could have simulated with some old bubble memory?", "parent_id": null, "depth": 1, "replies": [ { "com...	1,760,374,071.57279
https://hackaday.com/2019/01/18/talking-with-bubbles/	Talking With Bubbles	Al Williams	[ "3d Printer hacks", "Arduino Hacks" ]	[ "bubbles", "iris", "Teensy" ]	https://hackaday.com/wp-…bble-1.png?w=800	Despite the title, this isn’t a tale of conversing with Michael Jackson’s chimp. Rather, it is about [KyungYun]’s machine that transforms speech into whimsical bubbles . While the speech control is novel, we were more fascinated with how the mechanism uses a system of strings to blow bubbles, along with the workmanship...	3	3	[ { "comment_id": "5807058", "author": "Daren Schwenke", "timestamp": "2019-01-19T03:31:07", "content": "Literal speech bubbles.. Now just need a laser scanner to render the corresponding words. :)", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5807946", "...	1,760,374,071.671208
https://hackaday.com/2019/01/18/electrifying-a-honda-nc50-express/	Electrifying A Honda NC50 Express	Richard Baguley	[ "Engine Hacks" ]	[ "electric vehicle", "ev", "Honda" ]	https://hackaday.com/wp-…ectric.jpg?w=800	[Quasse] bought a 1978 Honda NC50 Express moped with the intention of fixing it up and riding it, only to find that the engine was beyond repair. So, they did what any self-respecting hacker would do: tear out the motor and replace it with an electric one . It’s still a work in progress, but they have got it up and run...	28	9	[ { "comment_id": "5806614", "author": "crazywriterof6", "timestamp": "2019-01-19T00:36:49", "content": "Sweet project!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5806723", "author": "Saabman", "timestamp": "2019-01-19T01:13:35", "content": "just...	1,760,374,071.896478
https://hackaday.com/2019/01/18/an-arduino-carbon-fiber-wrapping-machine/	An Arduino Carbon Fiber Wrapping Machine	Tom Nardi	[ "Arduino Hacks", "Parts" ]	[ "Arduino Uno", "carbon fiber", "carbon fiber wrapping", "PVC", "stepper motor" ]	https://hackaday.com/wp-…n_feat.jpg?w=800	Many of the projects we feature on Hackaday are motivated by pure greed. Not on the part of the hacker, mind you; but rather the company that’s charging such an outrageous price for a mass produced item that somebody decides they can do the same thing cheaper as a one-off project. Which is precisely how [Bryan Kevan] e...	23	8	[ { "comment_id": "5805896", "author": "e", "timestamp": "2019-01-18T21:08:18", "content": "That’s a tesla coil secondary winder trapped in a carbon fibre tube winder’s write up!", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5805907", "author": "Meek ...	1,760,374,071.965791
https://hackaday.com/2019/01/18/arduino-tachometer-clock-fires-on-all-cylinders/	Arduino Tachometer Clock Fires On All Cylinders	Tom Nardi	[ "Arduino Hacks", "clock hacks" ]	[ "arduino", "clock", "digital gauges", "ds1307", "rtc", "tachometer" ]	https://hackaday.com/wp-…k_feat.jpg?w=800	We’re certainly no strangers to unique timepieces around these parts. For whatever reason, hackers are obsessed with finding new and interesting ways of displaying the time. Not that we’re complaining, of course. We’re just as excited to see the things as they are to build them. With the assumption that you’re just as ...	10	6	[ { "comment_id": "5805957", "author": "Cray", "timestamp": "2019-01-18T21:20:55", "content": "What digital gauge has he used ?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5806213", "author": "Saabman", "timestamp": "2019-01-18T22:10:08", "content...	1,760,374,073.917879
https://hackaday.com/2019/01/18/inventors-chasing-their-dreams-what-its-like-to-quit-your-job-and-hack/	Inventors Chasing Their Dreams; What It’s Like To Quit Your Job And Hack	Tom Nardi	[ "cons", "Hackaday Columns" ]	[ "2018 Hackaday Superconference", "electric car", "Michael Rigsby", "robotics", "Supercon" ]	https://hackaday.com/wp-…feat-1.jpg?w=800	The phrase “Hindsight is 20/20” is one of those things that we all say from time to time, but rarely have a chance to truly appreciate to the fullest. Taken in the most literal context, it means that once you know the end result of a particular scenario, you can look back and clearly see the progression towards that no...	13	9	[ { "comment_id": "5805487", "author": "steve", "timestamp": "2019-01-18T18:02:14", "content": "Is that EV named Carman Electric?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5805522", "author": "msat", "timestamp": "2019-01-18T18:24:02", ...	1,760,374,073.732359
https://hackaday.com/2019/01/18/hackaday-podcast-ep2-curious-gadgets-and-the-fpga-brain-trust/	Hackaday Podcast 002: Curious Gadgets And The FPGA Brain Trust	Mike Szczys	[ "Hackaday Columns", "Podcasts" ]	[ "barn door tracker", "Circuit Sculpture", "cray-1", "fpga", "Hackaday Podcast", "icestorm", "mains electricity", "scramjet" ]	https://hackaday.com/wp-…ophone.jpg?w=800	In this week’s podcast, editors Elliot Williams and Mike Szczys look back on favorite hacks and articles from the week. Highlights include a deep dive in barn-door telescope trackers, listening in on mains power, the backstory of a supercomputer inventor, and crazy test practices with new jet engine designs. We discuss...	8	4	[ { "comment_id": "5805469", "author": "Joe Q.", "timestamp": "2019-01-18T17:53:35", "content": "Who knew that “Szczys” is pronounced “Stitch”?!?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5805587", "author": "Mike Szczys", "timestamp": "20...	1,760,374,073.864774
https://hackaday.com/2019/01/18/diy-clapper-is-1980s-style-with-raspberry-pi-twist/	DIY Clapper Is 1980s Style With Raspberry Pi Twist	Al Williams	[ "home hacks", "Raspberry Pi" ]	[ "clapper", "home automation", "pyaudio", "python", "raspberry pi" ]	https://hackaday.com/wp-…1/clap.png?w=800	Home automation isn’t all that new. It is just more evolved. Many years ago, a TV product appeared called the Clapper. If you haven’t heard of it, it was basically a sound-operated AC switch. You plug, say, a lamp into the device and the clapper into the wall and you can then turn the lamp on or off by clapping. If you...	7	6	[ { "comment_id": "5805317", "author": "Col. Panek", "timestamp": "2019-01-18T16:50:21", "content": "I’ve got one somewhere but have found no use for it. Same reason I don’t have a AmazonSpyBot.I do like to “clap off” candles. My wife can’t figure it out; you just have to practice and get a jet of air...	1,760,374,073.777115
https://hackaday.com/2019/01/18/oreo-construction-hiding-your-components-inside-the-pcb/	Oreo Construction: Hiding Your Components Inside The PCB	Brian Benchoff	[ "Engineering", "Featured", "Slider" ]	[ "embedded components", "fabrication", "guitar pedal", "oreo construction", "RangeBlaster", "Rangemaster", "stackup" ]	https://hackaday.com/wp-…header.jpg?w=800	In recent months, the ability to hide components inside a circuit board has become an item of interest. We could trace this to the burgeoning badgelife movement, where engineers create beautiful works of electronic art. We can also attribute this interest to Bloomberg’s Big Hack , where Jordan Robertson and Michael Ril...	73	32	[ { "comment_id": "5805033", "author": "Antron Argaiv", "timestamp": "2019-01-18T15:09:52", "content": "See: cordwood modules –https://archive.computerhistory.org/resources/physical-object/control_data_corporation_cdc/X402-84A.lg.jpg", "parent_id": null, "depth": 1, "replies": [ { ...	1,760,374,074.348099
https://hackaday.com/2019/01/18/ben-heck-can-program-the-smallest-microcontroller/	Ben Heck Can Program The Smallest Microcontroller	Brian Benchoff	[ "ATtiny Hacks", "Microcontrollers" ]	[ "attiny", "attiny10", "AVR", "programmer" ]	https://hackaday.com/wp-…header.png?w=800	Microcontrollers are small, no one is arguing that. On a silicon wafer the size of a grain of rice, you can connect a GPS tracker to the Internet. Put that in a package, and you can put the Internet of Things into something the size of a postage stamp. There’s one microcontroller that’s smaller than all the others. It’...	57	18	[ { "comment_id": "5804502", "author": "Ostracus", "timestamp": "2019-01-18T12:10:00", "content": "The antenna’s probably bigger than the controller.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5804569", "author": "Andy Pugh", "timestamp": "2019-01-18...	1,760,374,074.013461
https://hackaday.com/2019/01/18/hacking-hackaday-io-from-circuitpython/	Hacking Hackaday.io From CircuitPython	Ted Yapo	[ "Wireless Hacks" ]	[ "CircuitPython", "hackaday.io", "wifi" ]	https://hackaday.com/wp-…ounter.jpg?w=800	If you’ve ever engaged in social media, you’re familiar with the little thrill you receive when your post, tweet, or project gets a like. But, if logging in feels like too much overhead to obtain your dopamine reward, [pt’s] CircuitPython Hackaday portal may be just what you’re looking for. This project creates a stand...	4	2	[ { "comment_id": "5804836", "author": "salec", "timestamp": "2019-01-18T13:59:29", "content": "“While it sounds like something concocted purely to make old-school embedded-C programmers grumble, it’s actually …”… probably something which would make old-school embedded Forth programmers grumble XD .",...	1,760,374,073.821249
https://hackaday.com/2019/01/17/long-range-rfid-with-feedback/	Long-Range RFID With Feedback	Brian McEvoy	[ "Wireless Hacks" ]	[ "antenna", "long range", "rfid", "sparkfun", "uhf" ]	https://hackaday.com/wp-…s-feat.jpg?w=800	Not long ago, we published an article about researchers adding sensor data to passive RFID tags, and a comment from a reader turned our heads to a consumer/maker version which anyone can start using right away (PDF). If you’re catching up, passive RFID technology is behind the key fobs and stickers which don’t need pow...	24	11	[ { "comment_id": "5803724", "author": "Burak", "timestamp": "2019-01-18T06:29:24", "content": "The button solution is exactly what the RFID Buttons on the back of my phone are doing. I have been using them for 3 years now. They are called Dimple.io. RFID/NFC I don’t see the difference. Completely pas...	1,760,374,074.072535
https://hackaday.com/2019/01/17/designing-a-toilet-roll-holder/	Designing A Toilet Roll Holder	Lewin Day	[ "home hacks" ]	[ "design", "toilet", "toilet roll holder" ]	https://hackaday.com/wp-…/450-8.jpg?w=800	Everything needs to be designed, at one point or another. There are jobs for those who design kitchens, and stadiums, and interplanetary spacecraft. However, there are also jobs for those who design cutlery, hose fittings, and even toilet roll holders. [Eric Strebel] is here to share just such a story. [Eric] covers th...	22	10	[ { "comment_id": "5803280", "author": "LordNothing", "timestamp": "2019-01-18T03:43:57", "content": "now make it cat proof.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5803337", "author": "Ratfink", "timestamp": "2019-01-18T03:56:00", ...	1,760,374,074.409021
https://hackaday.com/2019/01/17/this-computer-mouse-houses-a-mouse-computer/	This Computer Mouse Houses A Mouse Computer	Dan Maloney	[ "Raspberry Pi" ]	[ "all-in-one", "bluetooth", "mouse", "Raspberry Pi Zero W" ]	https://hackaday.com/wp-…980248.png?w=800	Everyone has heard of a computer mouse before, but what about a mouse computer? Granted, [Electronic Grenade]’s all-in-one computer in an oversized mouse-shaped case is almost without practical value. But that’s hardly the point, which was just to do something cool. Inspiration came from keyboards stuffed with a Raspbe...	14	12	[ { "comment_id": "5802586", "author": "Saabman", "timestamp": "2019-01-18T00:24:58", "content": "if the keyboard slid out and rotated so it was in the correct plane would make it a bit more usable.Its good to see a project just fro the sake of it. the initial idea may not be useful but often spawns a...	1,760,374,074.119711
https://hackaday.com/2019/01/17/win-back-some-privacy-with-a-cone-of-silence-for-your-smart-speaker/	Win Back Some Privacy With A Cone Of Silence For Your Smart Speaker	Dan Maloney	[ "Raspberry Pi", "Security Hacks" ]	[ "alexa", "Amazon Echo", "google home", "Hey Google", "hot-word", "privacy", "security", "smart speaker", "white noise" ]	https://hackaday.com/wp-…786772.jpg?w=800	To quote the greatest philosopher of the 20th century: “The future ain’t what it used to be.” Take personal assistants such as Amazon Echo and Google Home. When first predicted by sci-fi writers, the idea of instant access to the sum total of human knowledge with a few utterances seemed like a no-brainer; who wouldn’t ...	81	22	[ { "comment_id": "5801825", "author": "Alan Hightower", "timestamp": "2019-01-17T21:05:42", "content": "A company has already commercialized the idea and launched it at CES last week:https://mysmartelife.com/products/muteplus", "parent_id": null, "depth": 1, "replies": [ { "...	1,760,374,074.577831
https://hackaday.com/2019/01/17/hackaday-superconference-estefannies-daft-punk-helmet/	Hackaday Superconference: Estefannie’s Daft Punk Helmet	Dan Maloney	[ "cons", "LED Hacks", "Wearable Hacks" ]	[ "2018 Hackaday Superconference", "daft punk", "DragonBoard", "fabrication", "helmet", "mold", "skills", "thermoforming", "vacuum forming", "Wearables" ]	https://hackaday.com/wp-…526503.jpg?w=799	There’s no single formula for success, but if we’ve learned anything over the years of covering cons, contests, and hackathons, it’s that, just like in geology, pressure can create diamonds. Give yourself an impossible deadline with high stakes, and chances are good that something interesting will result. That’s what E...	7	4	[ { "comment_id": "5801815", "author": "jaap", "timestamp": "2019-01-17T21:03:48", "content": "I watched dozens of you-tube video’s about vacuum forming but I fully expect my first try to go something like that (and the 2nd and 3rd too), it’s a tricky process where everything has to be timed in sync w...	1,760,374,074.456755
https://hackaday.com/2019/01/17/hack-your-gmail-a-quick-start-for-google-app-scripting/	Hack Your Gmail: A Quick Start For Google App Scripting	Al Williams	[ "Hackaday Columns", "internet hacks", "Skills", "Software Hacks" ]	[ "Gmail", "google", "google apps", "google apps script", "javascript" ]	https://hackaday.com/wp-…atured.jpg?w=800	For many people, Gmail is synonymous with e-mail. Some people like having cloud access to everything and some people hate having any personal data in the cloud. However you feel about it, one thing that was nice about having desktop software is that you could hack it relatively easily. If you didn’t like how your deskt...	18	7	[ { "comment_id": "5801411", "author": "Ostracus", "timestamp": "2019-01-17T18:21:57", "content": "Interesting, may try it sometimes. Although I believe one can still connect their desktop app using POP/IMAP and do all the magic there. Let Google deal with all the rest.", "parent_id": null, "d...	1,760,374,074.798744
https://hackaday.com/2019/01/17/youll-never-see-the-end-of-this-project/	You’ll Never See The End Of This Project	Ted Yapo	[ "hardware", "LED Hacks" ]	[ "led", "LFSR", "pseudo-random" ]	https://hackaday.com/wp-…r-lfsr.jpg?w=800	…theoretically, anyway. When [Quinn] lucked into a bunch of 5 mm red LEDs and a tube of 74LS164 shift registers, a project sprang to mind: “The Forever Number,” a pseudo-random number generator with a period longer than the age of the universe . Of course, the components used will fail long before the sequence repeats,...	26	9	[ { "comment_id": "5801222", "author": "Ren", "timestamp": "2019-01-17T16:35:02", "content": "I could have done it with a 555…oh, wait…B^)", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5801252", "author": "Lucas", "timestamp": "2019-01-17T16:56:54", ...	1,760,374,074.91611
https://hackaday.com/2019/01/17/sharpest-color-crt-display-is-monochrome-plus-a-trick/	Sharpest Color CRT Display Is Monochrome Plus A Trick	Ted Yapo	[ "Engineering", "Featured", "Slider", "Tool Hacks" ]	[ "crt", "display", "NuColor", "oscilloscope" ]	https://hackaday.com/wp-…atured.jpg?w=800	I recently came across the most peculiar way to make a color CRT monitor. More than a few oscilloscopes have found their way on to my bench over the years, but I was particularly struck with a find from eBay. A quick look at the display reveals something a little alien. The sharpness is fantastic: each pixel is a perfe...	68	24	[ { "comment_id": "5801139", "author": "koldCathode", "timestamp": "2019-01-17T15:42:49", "content": "God I love old CRTs. Did they ever make any TVs or monitors using this technology, or just oscilloscopes? Really impressive the kind of maturity they got out of those machines before they became obsol...	1,760,374,075.088221
https://hackaday.com/2019/01/17/readable-file-compiles-plays-a-compiler-in-plain-text-also-plays-musicmusic/	A Compiler In Plain Text Also Plays Music	Bryan Cockfield	[ "computer hacks" ]	[ "8086", "c++", "compiler", "computer", "computer science", "instruction", "intel", "puzzle", "readable" ]	https://hackaday.com/wp-…main-6.jpg?w=800	As a layperson reading about some branches of mathematics, it often seems like mathematicians are just people who really like to create and solve puzzles. And, knowing that computer science shares a lot of its fundamentals with mathematics, we can assume that most computer scientists are also puzzle-solvers as well. Th...	18	9	[ { "comment_id": "5800744", "author": "james riley", "timestamp": "2019-01-17T12:17:32", "content": "I’m a mathematician who took courses on mathematical logic and the philosophy of mathematics. You’re not wrong.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5...	1,760,374,074.736406
https://hackaday.com/2019/01/17/postmarketos-turns-600-days-old/	PostmarketOS Turns 600 Days Old	Eric Evenchick	[ "Cellphone Hacks" ]	[ "android", "junk bin", "librem", "linux", "Pine64", "postmarketos" ]	https://hackaday.com/wp-…nexus5.jpg?w=600	PostmarketOS began work on a real Linux distribution for Android phones just over 600 days ago. They recently blogged about the state of the project and ensured us that the project is definitely not dead. PostmarketOS’ overarching goal remains a 10 year life-cycle for smartphones. We previously covered the project on H...	18	5	[ { "comment_id": "5800658", "author": "Adam", "timestamp": "2019-01-17T11:40:58", "content": "Great to see it rises. I tried it some time ago on my SGS2 and there was only Wayland demo screen on this and no power management. I wish there will by some form of power management (sleep mode, powering dow...	1,760,374,074.967689
https://hackaday.com/2019/01/16/breakfast-bot-does-eggs-to-perfection/	Breakfast Bot Does Eggs To Perfection	Lewin Day	[ "cooking hacks" ]	[ "breakfast", "breakfast machine", "eggs" ]	https://hackaday.com/wp-…/800-4.jpg?w=800	Breakfast is a meal fraught with paradoxes. It’s important to start the day with a hearty meal full of energy and nutrition, but it’s also difficult to cook when you’re still bleary-eyed and half asleep. As with many problems in life, automation is the answer. [James Bruton] has the rig that will boil your egg and get ...	13	6	[ { "comment_id": "5799686", "author": "Micha", "timestamp": "2019-01-17T06:44:51", "content": "No scale included?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5799971", "author": "Saabman", "timestamp": "2019-01-17T08:12:19", "content": "damn I wa...	1,760,374,074.850417
https://hackaday.com/2019/01/16/rsa-encryption-cracked-easily-sometimes/	RSA Encryption Cracked Easily (Sometimes)	Al Williams	[ "Security Hacks" ]	[ "prime numbers", "public key encryption", "random numbers", "rsa" ]	https://hackaday.com/wp-…01/key.png?w=800	A large chunk of the global economy now rests on public key cryptography. We generally agree that with long enough keys, it is infeasible to crack things encoded that way. Until such time as it isn’t, that is. Researchers published a paper a few years ago where they cracked a large number of keys in a very short amount...	32	9	[ { "comment_id": "5799004", "author": "Dj Biohazard", "timestamp": "2019-01-17T03:21:44", "content": "“computersm”Is that the part when you whip the chips? :P", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5800273", "author": "tomás zerolo", "...	1,760,374,075.203018
https://hackaday.com/2019/01/16/the-embroidered-computer/	The Embroidered Computer	Bryan Cockfield	[ "Art" ]	[ "8 bit", "art", "circuit", "computer", "embroidery", "fabric", "gold", "pcb", "programmable", "relay" ]	https://hackaday.com/wp-…main-4.jpg?w=800	By now we’ve all seen ways to manufacture your own PCBs. There are board shops who will do small orders for one-off projects, or you can try something like the toner transfer method if you want to get really adventurous. One thing we haven’t seen is a circuit board that’s stitched together , but that’s exactly what a g...	5	4	[ { "comment_id": "5798451", "author": "MvK", "timestamp": "2019-01-17T00:49:10", "content": "“One thing we haven’t seen …”. Except maybe here on HaD:https://hackaday.com/2018/04/15/hackaday-links-april-15th-2018/;-)", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id"...	1,760,374,075.128361
https://hackaday.com/2019/01/16/this-monowheel-is-bright-orange-and-we-want-one/	This Monowheel Is Bright Orange, And We Want One	Lewin Day	[ "classic hacks" ]	[ "engine", "monowheel", "motorcycle" ]	https://hackaday.com/wp-…1/asdf.jpg?w=800	Monowheels are a singular form of transport. Like electric scooters and the Segway, they are remarkably impractical for getting from point A to point B, are expensive to build or buy, and make you look faintly silly as you ride them down the street. However, we’d be hard pressed to find a member of the Hackaday team th...	24	9	[ { "comment_id": "5797891", "author": "Hausjam", "timestamp": "2019-01-16T22:11:40", "content": "General Grievous not included.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5797900", "author": "seth johnson", "timestamp": "2019-01-16T22:13:41", "c...	1,760,374,075.438035
https://hackaday.com/2019/01/16/brush-with-the-power-of-3d-printing/	Brush With The Power Of 3D Printing	Brian Benchoff	[ "3d Printer hacks" ]	[ "3d print", "3d printed", "bouldering", "climbing" ]	https://hackaday.com/wp-…atured.jpg?w=800	When it comes to 3D printing, functional prints are still few and far between. Sure, you can print a mount for anything, a Raspberry Pi case, but there are few prints out there that are truly useful, and even fewer that are useful while taking advantage of the specific capabilities of a 3D printer. The Bouldering Brush...	23	7	[ { "comment_id": "5797307", "author": "mark watney", "timestamp": "2019-01-16T19:52:03", "content": "“While it’s not a gender neutral print”Is this a joke or…?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5797449", "author": "Padrote", "time...	1,760,374,075.261564
https://hackaday.com/2019/01/16/plastics-acrylic/	Plastics: Acrylic	Dan Maloney	[ "Hackaday Columns", "how-to", "Interest" ]	[ "acrylic", "Laser cutting", "plastic", "PMMA", "poly(methyl methacrylate)", "polymer", "Solvent", "welding" ]	https://hackaday.com/wp-…50-4c2.jpg?w=799	If anything ends up on the beds of hobbyist-grade laser cutters more often than birch plywood, it’s probably sheets of acrylic. There’s something strangely satisfying about watching a laser beam trace over a sheet of the crystal-clear stuff, vaporizing a hairs-breadth line while it goes, and (hopefully) leaving a flame...	32	8	[ { "comment_id": "5797164", "author": "Seattle Sipper", "timestamp": "2019-01-16T19:10:20", "content": "The common wisdom for GlowForge laser cutters is to use “cast” acrylic. However, other sources say that cast and extruded acrylic are safe with respect to vaporized components from the laser cutti...	1,760,374,075.521069
https://hackaday.com/2019/01/16/new-contest-3d-printed-gears-pulleys-and-cams/	New Contest: 3D Printed Gears, Pulleys, And Cams	Mike Szczys	[ "3d Printer hacks", "classic hacks", "contests", "Hackaday Columns", "Original Art", "Slider" ]	[ "3d printed", "automata", "cams", "gear box", "gears", "Mechanisms", "pulleys" ]	https://hackaday.com/wp-…ars_bg.jpg?w=800	One of the killer apps of 3D printers is the ability to make custom gears, transmissions, and mechanisms. But there’s a learning curve. If you haven’t 3D printed your own gearbox or automaton, here’s a great reason to take the plunge. This morning Hackaday launched the 3D Printed Gears, Pulleys, and Cams contest , a ch...	40	7	[ { "comment_id": "5796913", "author": "Joel B", "timestamp": "2019-01-16T17:45:41", "content": "Oh man. This reminds me that I need to design/print a new gear for my chainsaw. Worx branded 15 amp thing tore through a gear in less than two months of use. It’s an odd gear, though – the inside is spl...	1,760,374,075.6059
https://hackaday.com/2019/01/16/the-printed-solution-to-a-handful-of-resistors/	The Printed Solution To A Handful Of Resistors	Brian Benchoff	[ "3d Printer hacks" ]	[ "3d printed", "e series", "resistors", "through hole resistors" ]	https://hackaday.com/wp-…112304.jpg?w=800	Resistors are an odd bunch. Why would you have 1.0 Ω resistors, then a 1.1 Ω resistor, but there’s no resistors in between 4.7 Ω and 5.6 Ω? This is a question that has been asked for decades, but the answer is actually quite simple. Resistors are manufactured according to their tolerance, not their value. By putting tw...	44	19	[ { "comment_id": "5796702", "author": "joelfinkle", "timestamp": "2019-01-16T16:36:58", "content": "I’d have put holes in the front of the drawers to put one through-hole resistor on the outside. Sometimes the color coding and form factor will help you find the right one faster.", "parent_id": nu...	1,760,374,075.693822
https://hackaday.com/2019/01/16/scramjet-engines-on-the-long-road-to-mach-5/	Scramjet Engines On The Long Road To Mach 5	Tom Nardi	[ "Current Events", "Engineering", "Featured", "Slider", "Transportation Hacks" ]	[ "Chuck Yeager", "hypersonic", "ramjet", "scramjet", "SR-71", "SR-72", "X-43", "X-51" ]	https://hackaday.com/wp-…1_feat.jpg?w=800	When Charles “Chuck” Yeager reached a speed of Mach 1.06 while flying the Bell X-1 Glamorous Glennis in 1947, he became the first man to fly faster than the speed of sound in controlled level flight. Specifying that he reached supersonic speed “in controlled level flight” might seem superfluous, but it’s actually a ver...	58	15	[ { "comment_id": "5796445", "author": "Mark", "timestamp": "2019-01-16T15:05:07", "content": "May I mention Reaction Engines and Skylon?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5796684", "author": "Luke", "timestamp": "2019-01-16T16:33:...	1,760,374,075.794634
https://hackaday.com/2019/01/16/no-keyboard-needed-this-laptop-is-all-screens/	No Keyboard Needed, This Laptop Is All Screens	Jenny List	[ "computer hacks" ]	[ "dual screen", "portable computer", "touchscreen" ]	https://hackaday.com/wp-…atured.jpg?w=800	If you have an eye for obscure Microsoft products, you may be aware of the Microsoft PixelSense, a table-sized horizontal touchscreen designed as a collaborative workspace. It’s a multi-user computer with no traditional keyboard or mouse, instead multiple users work with documents and other files as though they were re...	38	14	[ { "comment_id": "5796024", "author": "Mylvain", "timestamp": "2019-01-16T12:25:18", "content": "Lenovo yoga book c930 e-ink and lcd", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5796161", "author": "Barry L Woods", "timestamp": "2019-01-16T1...	1,760,374,075.868127
https://hackaday.com/2019/01/16/new-part-day-smd-batteries/	New Part Day: SMD Batteries	Brian Benchoff	[ "Hackaday Columns" ]	[ "batteries", "capacitors", "FDK", "SMD batteries" ]	https://hackaday.com/wp-…bright.png?w=800	Here’s a tip for all you retrocomputing enthusiasts or even anyone with an old computer in the garage. Go remove the battery. Yes, that old mid-90s desktop has a battery inside for the real-time clock, and it’s a ticking time bomb. Batteries leak, and they’ll spew goo all over the circuit board, irreparably damaging yo...	60	22	[ { "comment_id": "5795331", "author": "Jefferson Allan", "timestamp": "2019-01-16T09:06:42", "content": "Very interesting! I’d never even thought about solid-state batteries.(Minor nitpick: are you sure you didn’t mean “Thanks to massive investments in battery research, batteries are getting more ene...	1,760,374,075.967035
https://hackaday.com/2019/01/14/make-your-cactus-bionic-with-bionic-cactus/	Make Your Cactus Bionic With Bionic Cactus	Richard Baguley	[ "green hacks" ]	[ "automatic gardening", "ESP8266", "gardening" ]	https://hackaday.com/wp-…ionic1.jpg?w=800	The closest some of us at Hackaday get to a green thumb comes when we are painting, so for us and other folks not gifted in the gardening department Bionic Cactus might help. It’s a neatly designed water and light control system, built around an ESP8266. You can control the system through a web interface, setting a sch...	6	3	[ { "comment_id": "5789629", "author": "Fly Hammer", "timestamp": "2019-01-14T22:42:47", "content": "I don’t know, doing it with a cactus almost seems like cheating. That’s only a step or two removed from taking care of a pet rock.", "parent_id": null, "depth": 1, "replies": [ { ...	1,760,374,076.009325
https://hackaday.com/2019/01/14/3d-printing-an-entire-rocket/	3D Printing An Entire Rocket	Brian Benchoff	[ "3d Printer hacks", "cons", "Hackaday Columns", "Space" ]	[ "2018 Hackaday Superconference", "3d printing", "rockets" ]	https://hackaday.com/wp-…header.png?w=800	If you’re ever flying into LAX and have the left side window seat, just a few minutes before landing, look out the window. You’ll see a small airport just below you and what appears at first glance to be a smokestack. That’s not a smokestack, though: that’s a rocket, and that’s where SpaceX is building all their rocket...	43	7	[ { "comment_id": "5788853", "author": "Eric Cherry", "timestamp": "2019-01-14T21:06:10", "content": "But what settings in Cura did they use?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5789105", "author": "Iam Noname", "timestamp": "2019-01...	1,760,374,076.169715
https://hackaday.com/2019/01/14/a-cloned-bluetooth-tracker-meets-its-maker/	A Cloned Bluetooth Tracker Meets Its Maker	Tom Nardi	[ "Hackaday Columns", "hardware", "Slider", "Teardown" ]	[ "bluetooth", "Bluetooth tracker", "cr2032", "manufacturing", "nRF51822" ]	https://hackaday.com/wp-…feat-1.jpg?w=800	The holidays bring us many things. Family and friends are a given, as is the grand meal in which we invariably overindulge. It’s a chance for decades old songs and movies to somehow manage to bubble back up to the surface, and occasionally a little goodwill even slips in here or there. But perhaps above all, the holida...	30	12	[ { "comment_id": "5788106", "author": "jrfl", "timestamp": "2019-01-14T18:06:10", "content": "Worth mentioning is that those are both clearly knockoff of the ’tile’ producthttps://www.thetileapp.com/from 2014", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "578...	1,760,374,076.084239
https://hackaday.com/2019/01/14/hold-that-cam-belt-pulley-in-place-with-this-neat-cnc-work/	Hold That Cam Belt Pulley In Place With This Neat CNC Work	Jenny List	[ "cnc hacks" ]	[ "cambelt", "cambelt alignment", "cambelt pulley", "cnc" ]	https://hackaday.com/wp-…atured.jpg?w=800	The modern overhead-cam internal combustion engine is a mechanical masterpiece of hundreds of parts in perfect synchronisation. In many cases it depends for that synchronisation upon a flexible toothed belt, and those of you who have replaced one of these belts will know the exacting requirements for keeping the variou...	73	13	[ { "comment_id": "5787848", "author": "yetihehe", "timestamp": "2019-01-14T16:38:28", "content": "It’s a standard method AFAIK. Such blocks can be purchased, but they typically cost over $30.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5798750", "a...	1,760,374,076.27714
https://hackaday.com/2019/01/14/upnp-vulnerability-as-a-feature-that-just-wont-die/	UPnP, Vulnerability As A Feature That Just Won’t Die	Jenny List	[ "Current Events", "Featured", "News", "Security Hacks" ]	[ "chromecast", "PewDiePie", "routers", "security", "T-series", "upnp", "youtube" ]	https://hackaday.com/wp-…atured.jpg?w=800	UPnP — in a perfect world it would have been the answer to many connectivity headaches as we add more devices to our home networks. But in practice it the cause of a lot of headaches when it comes to keeping those networks secure. It’s likely that many Hackaday readers provide some form of technical support to relative...	25	10	[ { "comment_id": "5787713", "author": "Steve", "timestamp": "2019-01-14T15:51:36", "content": "Since learning about this issue, I’ve been trying to find a way to disable UPnP and still use my Chromecast. Chromecast docs say that I must have UPnP enabled. Any way around this? Do I need to manually for...	1,760,374,076.56682
https://hackaday.com/2019/01/14/ulx3s-an-open-source-lattice-ecp5-fpga-pcb/	ULX3S: An Open-Source Lattice ECP5 FPGA PCB	Ted Yapo	[ "FPGA" ]	[ "fpga", "fpga board", "icestorm", "lattice ice", "open source", "ULX3S" ]	https://hackaday.com/wp-…p-view.png?w=800	The hackers over at Radiona.org, a Zagreb Makerspace, have been hard at work designing the ULX3S, an open-source development board for LATTICE ECP5 FPGAs . This board might help make 2019 the Year of the Hacker FPGA, whose occurrence has been predicted once again after not quite materializing in 2018. Even a quick look...	25	12	[ { "comment_id": "5787125", "author": "Alex", "timestamp": "2019-01-14T12:16:33", "content": "I have one! They are very nicely designed bits of kit. Being able to program them over wifi is very cool. The documentation and examples are getting there and I hope to do some very cool things with the b...	1,760,374,076.497163
https://hackaday.com/2019/01/14/project-shows-how-to-use-machine-learning-to-detect-pedestrians/	Project Shows How To Use Machine Learning To Detect Pedestrians	Donald Papp	[ "how-to", "Software Development" ]	[ "darknet", "machine learning", "neural network", "opencv", "overfitting", "pedestrian", "YOLO", "yolov3" ]	https://hackaday.com/wp-…atured.png?w=800	Most people are familiar with the idea that machine learning can be used to detect things like objects or people, but for anyone who’s not clear on how that process actually works should check out [Kurokesu]’s example project for detecting pedestrians . It goes into detail on exactly what software is used, how it is co...	18	6	[ { "comment_id": "5787007", "author": "Tegwyn☠Twmffat", "timestamp": "2019-01-14T11:24:42", "content": "If you don’t own a high end GPU and don’t want to spend hours of severe brain pain installing Yolo and it’s thousands of dependencies, as of December 2018 person tracking and more can now be done o...	1,760,374,077.117456
https://hackaday.com/2019/01/15/wireless-charging-without-so-many-chargers/	Wireless Charging Without So Many Chargers	Brian McEvoy	[ "Wireless Hacks" ]	[ "charging", "mobile", "Nikola Tesla", "power", "tesla", "wireless", "wireless phone charging", "wireless power transfer" ]	https://hackaday.com/wp-…r-feat.jpg?w=800	[Nikola Tesla] believed he could wirelessly supply power to the world, but his calculations were off. We can, in fact, supply power wirelessly and we are getting better but far from the dreams of the historical inventor. The mainstream version is the Qi chargers which are what phones use to charge when you lay them on ...	11	4	[ { "comment_id": "5792629", "author": "kramboz", "timestamp": "2019-01-15T18:46:31", "content": "I once tried to put two devices on a single Qi charging base. It caught fire. The smell was horrible.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5792658", ...	1,760,374,076.887042
https://hackaday.com/2019/01/15/web-development-whats-big-in-2019/	Web Development: What’s Big In 2019?	Ben James	[ "Featured", "Interest", "Slider", "Software Development" ]	[ "amp", "containers", "css grid", "docker", "pwa", "server-side rendering", "serverless", "spa", "ssr", "trends", "vue.js", "web development" ]	https://hackaday.com/wp-…l_feat.jpg?w=800	I try to keep up with web development trends but it’s hard to keep pace since it’s such a fast evolving field. Barely a week goes by without the release of a new JS framework, elaborate build tool or testing suite — all of them touted as the one to learn. Sorting the hype from the genuinely useful is no mean feat, so m...	60	34	[ { "comment_id": "5792296", "author": "J", "timestamp": "2019-01-15T15:18:03", "content": "I rarely log in just to say “great article”, but today I’m making an exception.Very good summary.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5792466", "auth...	1,760,374,077.218623
https://hackaday.com/2019/01/15/deep-discounts-yield-deep-reverse-engineering-of-biotech-hardware/	Deep Discounts Yield Deep Reverse Engineering Of Biotech Hardware	Kerry Scharfglass	[ "hardware", "Teardown" ]	[ "DNA sequencing", "fluidics", "gene sequencing", "microscope", "salvage" ]	https://hackaday.com/wp-…155208.jpg?w=800	Hitting the electronic surplus shop is probably old hat to most of our readership. Somewhere, everyone’s got that little festering pile of hardware they’re definitely going to use some day. An old fax is one thing, but how would your partner feel if you took home an entire pallet-sized gene sequencing rig? Our friend [...	21	10	[ { "comment_id": "5792399", "author": "Panikos", "timestamp": "2019-01-15T16:32:59", "content": "Great article and phenomenal work. Thanks for writing this up!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5792427", "author": "Chris", "timestamp": "201...	1,760,374,077.559671
https://hackaday.com/2019/01/15/arduino-hunts-and-sees-the-wumpus/	Arduino Hunts (and Sees) The Wumpus	Tom Nardi	[ "Arduino Hacks", "classic hacks" ]	[ "8x8", "hunt the wumpus", "led", "text game", "zork" ]	https://hackaday.com/wp-…p_feat.jpg?w=800	For anyone who’s been fiddling around with computers since the days before VGA, “ Hunt the Wumpus ” probably brings back fond memories. Developed in 1973, this text game has you move around a system of caves searching for the foul-smelling Wumpus, a vile creature which you must dispatch with your trusty bow and arrow. ...	13	7	[ { "comment_id": "5791877", "author": "Eric Chapin", "timestamp": "2019-01-15T11:37:01", "content": "There is Hunt the Wumpus for TI-99/4 computer that uses graphic rather than text. There was a in-progress version for Atari 2600 but I don’t know if author ever finished it.", "parent_id": null, ...	1,760,374,077.617006
https://hackaday.com/2019/01/14/3d-printing-at-the-speed-of-light/	3D Printing At The Speed Of Light	Will Sweatman	[ "3d Printer hacks" ]	[ "3d printer", "resin", "sla printing" ]	https://hackaday.com/wp-…inmain.jpg?w=800	3D printers now come in all shapes and sizes, and use a range of technologies to take a raw material and turn it into a solid object. We’re most familiar with Additive Manufacturing – where the object is created layer by layer. This approach is quite useful, but has a down side of being time consuming. Two professors a...	35	12	[ { "comment_id": "5791118", "author": "Steven Clark", "timestamp": "2019-01-15T06:15:32", "content": "Anyone else reminded of the “3d printer” skit from the Carbonaro Effect with it’s system of “one laser that heats the plastic up and another that cools it”?", "parent_id": null, "depth": 1, ...	1,760,374,077.753644
https://hackaday.com/2019/01/14/listening-to-mains-power-part-2/	Listening To Mains Power, Part 2	Bryan Cockfield	[ "computer hacks" ]	[ "analysis", "audio", "frequency", "mains", "mains power", "matlab", "sound" ]	https://hackaday.com/wp-…main-2.jpg?w=800	The electricity on the power grid wherever you live in the world will now universally come to you as AC. That is to say that it will oscillate between positive and negative polarity many times every second. The frequency of 50 or 60Hz just happens to be within the frequency range for human hearing. There’s a lot more t...	26	8	[ { "comment_id": "5790730", "author": "Col. Panek", "timestamp": "2019-01-15T03:32:09", "content": "Is this the Dirty Electricity that gives you autism?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5791412", "author": "jafinch78", "timestamp...	1,760,374,077.67882
https://hackaday.com/2019/01/14/cutting-wit-and-plastic/	Cutting Wit And Plastic	Brian McEvoy	[ "Teardown", "Tool Hacks" ]	[ "scalpel", "teardown", "tool", "ultrasonic", "ultrasonic cutter" ]	https://hackaday.com/wp-…r-feat.jpg?w=800	If you have ever used a scalpel to cut something tougher than an eraser, you can appreciate a hot knife or better yet, an ultrasonic cutter. Saws work too, but they have their own issues. [This Old Tony] uses a hobby store tool to cut some plastic and wood, then demos a commercial ultrasonic cutter to show how a blade ...	4	4	[ { "comment_id": "5790195", "author": "Nate B", "timestamp": "2019-01-15T00:21:40", "content": "I got mine for $299, same model he’s got there. I haven’t decided if it was worth the money for utility’s sake, but has an unmistakable cool factor….", "parent_id": null, "depth": 1, "replies":...	1,760,374,077.80132
https://hackaday.com/2019/01/15/do-other-things-besides-output-video/	Do Other Things Besides Output Video	Bryan Cockfield	[ "Microcontrollers" ]	[ "blue pill", "memory", "microcontroller", "stm", "STM32F103C8", "vga", "video" ]	https://hackaday.com/wp-…main-3.jpg?w=800	Small microcontrollers and tiny systems-on-chips are getting more and more popular these days as the price comes down and the ease of programming goes up. A Raspberry Pi is relatively inexpensive and can do pretty much everything you need, but not every chip out there can do something most of us take for granted like o...	18	6	[ { "comment_id": "5794623", "author": "Severe Tire Damage", "timestamp": "2019-01-16T06:24:05", "content": "Pretty darn amazing. I am a great lover of the blue pill boards. My hat is off to Dave, but ….As with all truly great Hackaday projects, it is fundamentally useless, abeit incredible.The pill...	1,760,374,077.930521
https://hackaday.com/2019/01/15/both-explanation-and-build-for-this-artwork-are-beautiful/	Both Explanation And Build For This Artwork Are Beautiful	Brian McEvoy	[ "Art" ]	[ "bauble", "beautiful", "electromagnets", "explanation", "levitation", "magnets", "oddity", "solar", "suspension" ]	https://hackaday.com/wp-…re-Two.png?w=800	Sometimes you encounter projects that defy description, as is the case with this one. So perhaps it’s best to start with what this project is NOT. It is not a sphere. It is not a perpetual energy device. It has neither a sloppy build nor a slapdash video. This IS a motorized rhombicuboctahedron that is a well-explained...	19	11	[ { "comment_id": "5793919", "author": "Jason Pyeron", "timestamp": "2019-01-16T03:28:06", "content": "I would buy one for my desk", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5794024", "author": "echodelta", "timestamp": "2019-01-16T04:23:04", "co...	1,760,374,077.856691
https://hackaday.com/2019/01/15/particle-paves-way-for-lte-selfies/	Particle Paves Way For LTE Selfies	Tom Nardi	[ "digital cameras hacks", "Microcontrollers" ]	[ "canon", "dslr", "internet of things", "LTE", "photon", "Photon Boron" ]	https://hackaday.com/wp-…m_feat.jpg?w=800	From cars to refrigerators, it seems as if every new piece of tech is connected to the Internet. For better or for worse, we’re deep into the “Internet of Things”. But what about your camera? No, not the camera in your smartphone; that one’s already connected to the Internet and selling your secrets to the highest bidd...	3	3	[ { "comment_id": "5796328", "author": "Nicolas Tremblay", "timestamp": "2019-01-16T14:21:44", "content": "Correction, the Boron (and other 2 mesh network particle boars) were annouced over a year ago, but only started shipping a few months back.", "parent_id": null, "depth": 1, "replies":...	1,760,374,078.037351
https://hackaday.com/2019/01/15/arduino-rc-transmitter-for-homebrew-projects/	Arduino RC Transmitter For Homebrew Projects	Lewin Day	[ "Arduino Hacks", "Radio Hacks" ]	[ "arduino", "nRF24L01+", "radio control" ]	https://hackaday.com/wp-…01/800.png?w=800	The field of radio control has benefited much from the onward march of technology. Where a basic 2-channel setup would once have cost hundreds of dollars, it’s now possible to get a high-end 2.4GHz 9-channel rig for well under $100, shipped to your door. However, the vast majority of these systems are closed-source and...	3	3	[ { "comment_id": "5793004", "author": "Daren Schwenke", "timestamp": "2019-01-15T21:26:02", "content": "Perfect timing.. I just pulled out my NRF modules to start programming something for my DIY mountain board. Stripping this down will be simpler. Thanks.", "parent_id": null, "depth": 1, ...	1,760,374,077.991388
https://hackaday.com/2019/01/15/cheap-muon-detectors-go-aloft-on-high-altitude-balloon-mission/	Cheap Muon Detectors Go Aloft On High-Altitude Balloon Mission	Dan Maloney	[ "Misc Hacks" ]	[ "coincidence", "flux", "gps", "HAB", "high-altitude ballooon", "muon", "particle detector", "photomultiplier", "scintillator" ]	https://hackaday.com/wp-…089671.png?w=799	There’s something compelling about high-altitude ballooning. For not very much money, you can release a helium-filled bag and let it carry a small payload aloft, and with any luck graze the edge of space. But once you retrieve your payload package – if you ever do – and look at the pretty pictures, you’ll probably be l...	15	6	[ { "comment_id": "5792905", "author": "BT", "timestamp": "2019-01-15T20:39:59", "content": "Just don’t do it near Gatwick airport…", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5793003", "author": "Ren", "timestamp": "2019-01-15T21:25:09", ...	1,760,374,078.085223
https://hackaday.com/2019/01/15/seymour-cray-father-of-the-supercomputer/	Seymour Cray, Father Of The Supercomputer	Dan Maloney	[ "Biography", "Hackaday Columns", "History", "Original Art" ]	[ "cray", "cray-1", "ERA", "supercomputer", "univac", "vector processing" ]	https://hackaday.com/wp-…urcray.jpg?w=800	Somewhere in the recesses of my memory there lives a small photograph, from one of the many magazines that fed my young interests in science and electronics – it was probably Popular Science. In my mind I see a man standing before a large machine. The man looks awkward; he clearly didn’t want to pose for the magazine p...	59	17	[ { "comment_id": "5792678", "author": "Ren", "timestamp": "2019-01-15T19:06:40", "content": "I heard that he had an algorithm for buying his car.1. Go to nearest dealer,2. Sit at nearest salesman’s desk3. Buy nearest car4. Go back to designing computers.", "parent_id": null, "depth": 1, "...	1,760,374,078.366786
https://hackaday.com/2019/01/15/twelve-circuit-sculptures-we-cant-stop-looking-at/	Twelve Circuit Sculptures We Can’t Stop Looking At	Mike Szczys	[ "contests", "Featured", "Slider" ]	[]	https://hackaday.com/wp-…atured.jpg?w=800	Circuits are beautiful in their own way, and a circuit sculpture takes that abstract beauty and makes it into a purposeful art form. Can you use the wires of the circuits themselves as the structure of a sculpture, and tell a story with the use and placement of every component? Anyone can exercise their inner artist us...	25	13	[ { "comment_id": "5792453", "author": "Hal Barbera", "timestamp": "2019-01-15T17:07:12", "content": "Great sculpture to gaze at!", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "5798616", "author": "TGT", "timestamp": "2019-01-17T01:29:07", ...	1,760,374,078.502423
https://hackaday.com/2019/01/12/cyberpunk-jacket-is-the-garment-of-choice-for-the-streets-of-2019/	Cyberpunk Jacket Is The Garment Of Choice For The Streets Of 2019	Lewin Day	[ "Wearable Hacks" ]	[ "cyberpunk", "el", "EL panel", "electroluminescence", "electroluminescent", "jacket", "wearable" ]	https://hackaday.com/wp-…/450-6.jpg?w=800	Fans of science fiction and related genres have always been disappointed by real life. The future holds so much promise on paper, yet millions were disappointed upon reaching 2015 to find that hoverboard technology still eluded us. It’s not all bad, though – [abetusk] has developed a cyberpunk jacket so you can live ou...	21	8	[ { "comment_id": "5776549", "author": "Oliver", "timestamp": "2019-01-12T14:33:11", "content": "Thats pretty cool, relatively simple but very effective", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "5776561", "author": "GameboyRMH", "timestamp": "2019-0...	1,760,374,078.426256

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