url stringlengths 37 208 | title stringlengths 4 148 | author stringclasses 173
values | publish_date stringclasses 1
value | 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/2017/11/06/how-pure-is-this-cup-of-joe-coffee-conspiracy-and-citizen-science/ | How Pure Is This Cup Of Joe? Coffee, Conspiracy, And Citizen Science | Sean Boyce | [
"chemistry hacks",
"Featured",
"Interest",
"Slider"
] | [
"artificial flavor",
"Chemistry",
"coffee",
"Ho Chi Minh City",
"purity",
"titration"
] | Have you ever thought about coffee purity? It’s more something you’d encounter with prescription or elicit drugs, but coffee is actually a rather valuable commodity. If a seller can make the actual grounds go a bit further by stretching the brew with alternative ingredients there becomes an incentive to cheat.
If this ... | 38 | 17 | [
{
"comment_id": "4185409",
"author": "Peter Neilson",
"timestamp": "2017-11-06T15:24:17",
"content": "I’m itching to run some of those samples through a GC. Unfortunately I don’t have one and do not plan to buy or build one. How about paper chromatography? Dark-colored components can be separated by... | 1,760,374,609.862739 | ||
https://hackaday.com/2017/11/06/reverse-engineering-the-nintendo-switch-joy-cons/ | Reverse Engineering The Nintendo Switch Joy-Cons | Lewin Day | [
"Nintendo Hacks"
] | [
"joy-con",
"joy-cons",
"joycon",
"joycons",
"nintendo",
"Nintendo Switch",
"reverse engineering",
"switch"
] | The Switch is Nintendo’s latest effort in the console world. One of its unique features is the Joy-Cons, a pair of controllers that can either attach directly to the console’s screen or be removed and used individually. But how do they work?
[dekuNukem] decided to find out
.
The reverse engineering efforts begin with d... | 26 | 6 | [
{
"comment_id": "4185260",
"author": "rasz_pl",
"timestamp": "2017-11-06T12:18:43",
"content": ">They used the keypad scanner built-in inside the BCM20734 with 128KHz clock for reading the buttons. That means it would be extremely hard to spoof button pressesextremely hard as in use $0.1 transistor?... | 1,760,374,609.921533 | ||
https://hackaday.com/2017/11/06/turn-medical-imaging-from-2d-into-3d-with-just-10/ | Turn Medical Imaging From 2D Into 3D With Just $10 | James Hobson | [
"Medical Hacks"
] | [
"gyroscopic",
"hospital",
"Imaging",
"ultrasound",
"wii"
] | One of the modern marvels in our medical toolkit is ultrasound imaging. One of its drawbacks, however, is that it displays 2D images. How expensive do you think it would be to retrofit an ultrasound machine to produce 3D images? Try a
$10 chip and pennies worth of plastic
.
While — of all things — playing the Wii with ... | 48 | 18 | [
{
"comment_id": "4185107",
"author": "Billy",
"timestamp": "2017-11-06T09:20:04",
"content": "Where is there a link to the $10.00 chip?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4185185",
"author": "Truth",
"timestamp": "2017-11-06T11:20... | 1,760,374,610.061847 | ||
https://hackaday.com/2017/11/05/twin-pis-for-remote-computer-management/ | Twin Pis For Remote Computer Management | Lewin Day | [
"Raspberry Pi"
] | [
"kvm",
"raspberry pi",
"remote control"
] | Sometimes you have a whole bunch of computers that you need to work with, and having a keyboard, monitor, and mouse for each one becomes too much to deal with. There are a multitude of solutions to this problem, but
[Fmstrat] went the hacker route, and built their own.
The build is a rather unique way of controlling PC... | 32 | 9 | [
{
"comment_id": "4184952",
"author": "eichin",
"timestamp": "2017-11-06T06:34:47",
"content": "Neat – I’m in the middle of a similar thing using a teensy for keyboard side and Elgato cam-link for the video, which is a bit pricier. After digging a little, though – why does this writeup repeatedly me... | 1,760,374,609.981531 | ||
https://hackaday.com/2017/11/05/programming-an-oscilloscope-breakout-game-in-pure-data/ | Programming An Oscilloscope Breakout Game In Pure Data | John Baichtal | [
"classic hacks",
"Tool Hacks"
] | [
"breakout",
"oscilloscope",
"oscilloscope game",
"pure data"
] | [S-ol] wrote in to share his sweet
breakout game played on an oscilloscope
. Built in a weekend as part of a game development jam, Plonat Atek is a polar breakout game where the player attacks the center and the ball bounces around the perimeter. You can play it either on an oscilloscope or using an online emulator. [S... | 3 | 3 | [
{
"comment_id": "4185179",
"author": "ganzuul",
"timestamp": "2017-11-06T11:10:46",
"content": "And more, at;https://www.reddit.com/r/oscilloscopemusic/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4185437",
"author": "Olsen",
"timestamp": "2017-11-0... | 1,760,374,609.782097 | ||
https://hackaday.com/2017/11/05/hackaday-links-remember-remember/ | Hackaday Links: Remember, Remember | Brian Benchoff | [
"Hackaday Columns",
"Hackaday links"
] | [
"2017 Hackaday Superconference",
"dumb products",
"Galvanic Isolation",
"iphone",
"mergers and acquisitions",
"PoC || GTFO",
"Visual Studio",
"Zinq",
"Zynq"
] | Buckle up, buttercup because this is the last weekly Hackaday Links post you’re getting for two weeks. Why?
We have a thing next weekend
. The Hackaday Superconference is November 11th and 12th (and also the 10th, because
there’s a pre-game party
), and it’s going to be the best hardware con you’ve ever seen. Don’t hav... | 16 | 7 | [
{
"comment_id": "4184749",
"author": "gregkennedy",
"timestamp": "2017-11-06T00:47:32",
"content": "Hum, that C64 repair looks familiar… hey, wait…https://hackaday.com/2017/07/02/hackaday-links-july-2-2017",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "41848... | 1,760,374,610.113838 | ||
https://hackaday.com/2017/11/04/freakishly-agile-crawler-rocks-all-lego-mechanum-wheels/ | Freakishly Agile Crawler Rocks All-LEGO Mechanum Wheels | John Baichtal | [
"Toy Hacks"
] | [
"LEGOm",
"mechanum wheel",
"mindstorms",
"Technic"
] | Mechanum wheels are great, but you have to have them perfectly alined or they come across a little clunky, giving your robot a herky-jerky movement. Robotics educator and supreme LEGO builder [Yoshihito Isogawa] built a
mechanum-wheeled rover
that has the angles right: each wheel consists of 12 smaller rubber tires ang... | 9 | 5 | [
{
"comment_id": "4183036",
"author": "RW ver 0.0.1",
"timestamp": "2017-11-04T23:09:32",
"content": "Does it still work on a grippy floor?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4183044",
"author": "p",
"timestamp": "2017-11-04T23:17:... | 1,760,374,610.204866 | ||
https://hackaday.com/2017/11/04/sable-machined-slingshot-is-a-composite-marvel/ | Sable-Machined Slingshot Is A Composite Marvel | Sonya Vasquez | [
"cnc hacks"
] | [
"Lunchbox CNC",
"Sable-2015",
"slingshot"
] | Armed with an overseas CNC machine retrofitted with custom electronics, [Eric] has taken to wowing us with his suite of home-fabricated slingshots. In a more recent stint, he’s just polished off his
Enzo Carbon Fiber Hydra Slingshot
, complete with a build log that’s loaded with step-by-step insights.
[Eric’s] build st... | 9 | 4 | [
{
"comment_id": "4182812",
"author": "Internet",
"timestamp": "2017-11-04T21:04:34",
"content": "$215 each. Sounds about right given the time and material costs. Milling carbon fiber is nasty work.What material aside from epoxy is in between the two carbon fiber layers? Was the epoxy degassed before... | 1,760,374,610.435741 | ||
https://hackaday.com/2017/11/04/circuit-challenge-two-transistor-3-3v-regulator/ | Circuit Challenge: Two Transistor 3.3V Regulator | Al Williams | [
"Misc Hacks"
] | [
"3.3v",
"3.3V regulator",
"regulator",
"transistor",
"zener diode"
] | [Kevin Darrah] wanted to make a
simple 3.3V regulator
without using an integrated circuit. He wound up using two common NPN transistors and 4 1K resistors. The circuit isn’t going to beat out a cheap linear regulator IC, but for the low component count, it is actually pretty good.
In all fairness, though, [Kevin] may h... | 26 | 6 | [
{
"comment_id": "4182384",
"author": "Ken N",
"timestamp": "2017-11-04T17:57:13",
"content": "The old ones look on and smile.We did have linear regulation before the IC.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4182595",
"author": "DainBramage"... | 1,760,374,610.393243 | ||
https://hackaday.com/2017/11/04/printed-parts-make-diy-electric-longboard-possible/ | Printed Parts Make DIY Electric Longboard Possible | James Hobson | [
"3d Printer hacks",
"Transportation Hacks"
] | [
"diy",
"electric",
"longboard",
"Propdrive",
"skateboard",
"speed controller",
"trucks"
] | Appalled by expensive electric longboards, [Conor Patrick] still wanted one, and wanted it now. So — naturally — he converted an existing board into a
sprightly electric version at a fraction of the cost
.
[Patrick] is using a capable 380KV Propdrive motor, capable of pushing him up to 30mp/h! A waterproof 120A speed c... | 13 | 7 | [
{
"comment_id": "4182082",
"author": "Jan",
"timestamp": "2017-11-04T14:36:40",
"content": "i like the way the motor connects to board and wheels, if for some reason it doesn’t work out the board isn’t ruined with small holes. The pistol grip RC controller is a nice touch.",
"parent_id": null,
... | 1,760,374,610.160356 | ||
https://hackaday.com/2017/11/04/fridge-alarm-speaks-and-saves-power-food/ | Fridge Alarm Speaks, And Saves Power & Food | Bryan Cockfield | [
"Microcontrollers"
] | [
"alarm",
"door",
"ESP",
"ESP8266",
"microcontroller",
"refrigerator",
"seal",
"wireless"
] | One of the most power-hungry devices in our homes, besides the air conditioner or heater, is our refrigerator and freezer. It’s especially so if the door doesn’t close all the way or the magnetic seal doesn’t seat properly. [Javier] took to solving a recurring problem with his personal fridge by
attaching an alarm to t... | 21 | 7 | [
{
"comment_id": "4181888",
"author": "demod",
"timestamp": "2017-11-04T11:15:22",
"content": "the wireless module looks more like a nrf24l01",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4185082",
"author": "Septillion",
"timestamp": "2017-1... | 1,760,374,610.846861 | ||
https://hackaday.com/2017/11/04/inductive-loop-vehicle-detector-gets-modernized/ | Inductive Loop Vehicle Detector Gets Modernized | Bryan Cockfield | [
"Transportation Hacks"
] | [
"car",
"induction",
"inductive loop",
"revision",
"vehicle"
] | Much like George Lucas and the original
Star Wars
films, many of us may find that our passion projects are never
quite
finished, especially when new technology comes around or we just want to make some improvements for their own sake. [Muris] was featured a while back for a vehicle detecting circuit, but is
back with s... | 41 | 8 | [
{
"comment_id": "4181757",
"author": "mikeo",
"timestamp": "2017-11-04T08:33:34",
"content": "seems kind of boring, with military surplus, and aftermarket Seismic intrusion detectors you can detect and identify anything that moves across the ground!http://www.prc68.com/I/PSR1.shtml",
"parent_id"... | 1,760,374,610.781505 | ||
https://hackaday.com/2017/11/03/386-too-much-try-a-186-in-an-fpga/ | 386 Too Much Horsepower? Try A 186, In An FPGA! | Lewin Day | [
"FPGA"
] | [
"186",
"80186",
"fpga",
"x86"
] | Typically when we hear the term “System-on-Chip” bandied around, our mind jumps straight to modern ARM-based processors that drive smartphones and embedded devices around us. Coming a little bit more out of left field is
[Jamie]’s 80186 core, that runs on Intel FPGAs.
[Jamie] ran the core through a few vintage PC bench... | 45 | 11 | [
{
"comment_id": "4181631",
"author": "Ostracus",
"timestamp": "2017-11-04T05:04:57",
"content": "“[Jamie] has implemented the entire set of 80186 instructions in Verilog, and included some of the undocumented instructions too.”Good way to see what happens when one intentionally breaks something.",
... | 1,760,374,610.699692 | ||
https://hackaday.com/2017/11/03/mini-millennium-falcon-is-envy-of-the-neighborhood/ | Mini Millennium Falcon Is Envy Of The Neighborhood | Tom Nardi | [
"Holiday Hacks",
"Toy Hacks"
] | [
"foam board",
"Halloween props",
"millenium falcon",
"radio flyer"
] | Here’s a tip for any readers who may be expecting a child in the near future: there’s about a two year period where you can basically use your child as a Halloween prop. They’re too young to express any serious interest in what they want to dress up as, and as an added bonus, they generally spend most of their time bei... | 19 | 10 | [
{
"comment_id": "4181524",
"author": "olderdan",
"timestamp": "2017-11-04T02:03:07",
"content": "You bastards, that sweet zone is something I have learned to miss now they are something teen!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4181525",
"author... | 1,760,374,610.609076 | ||
https://hackaday.com/2017/11/03/3d-printing-belts-for-vintage-hardware/ | 3D Printing Belts For Vintage Hardware | Tom Nardi | [
"classic hacks",
"hardware",
"Repair Hacks"
] | [
"belt",
"comodore",
"Ninjaflex",
"vintage compuer"
] | It may be hard for some of the younger readers to believe, but there was a time when hardware was full of little rubber belts. Tape decks, VCRs, even some computers: they all had rotating parts that needed to transfer power to other components, and belts were a cheap and quiet way to do it. Unfortunately, now decades l... | 35 | 16 | [
{
"comment_id": "4181416",
"author": "RW ver 0.0.1",
"timestamp": "2017-11-03T23:10:19",
"content": "“cleverly replicating the path the belt would need to take with string”I think string was rather the obvious choice here, cleverly replicating the path with chocolate pudding would have counted thoug... | 1,760,374,611.182021 | ||
https://hackaday.com/2017/11/03/hybrid-interface-brings-touchscreen-to-rigol-scope/ | Hybrid Interface Brings Touchscreen To Rigol Scope | Dan Maloney | [
"Tool Hacks"
] | [
"android",
"gesture",
"oscilloscope",
"rigol",
"scope",
"tablet",
"touchscreen"
] | With pervasive smartphones and tablets, the touch interface is assumed for small LCD screens, and we’ve likely all poked and pinched at some screen, only to find it immune to our gestures. Manufacturers have noticed this and begun adding touch interfaces to instruments like digital oscilloscopes, but touch interfaces t... | 7 | 5 | [
{
"comment_id": "4181155",
"author": "Ren",
"timestamp": "2017-11-03T20:02:58",
"content": "Excellent!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4181284",
"author": "tfyttihiuhufrd",
"timestamp": "2017-11-03T21:51:30",
"content": "Knob is a KI... | 1,760,374,611.02335 | ||
https://hackaday.com/2017/11/03/hackaday-prize-entry-microfluidics-control-system/ | Hackaday Prize Entry: Microfluidics Control System | John Baichtal | [
"The Hackaday Prize"
] | [
"2017 Hackaday Prize",
"DIY science",
"microfluidics",
"science"
] | Microfluidics is the fine art of moving tiny amounts of liquid around and is increasingly used in fields such as biology and chemistry. By miniaturizing experiments, it’s possible to run many experiments in parallel and have tighter control over experimental conditions. Unfortunately, the hardware to run these microflu... | 5 | 3 | [
{
"comment_id": "4181104",
"author": "Ed",
"timestamp": "2017-11-03T18:44:36",
"content": "Very cool. I’m an engineer at the Parker Hannifin division that makes those diaphragm pumps. Nice to see them actually being used in something.",
"parent_id": null,
"depth": 1,
"replies": [
{... | 1,760,374,610.980163 | ||
https://hackaday.com/2017/11/03/books-you-should-read-v-2-by-walter-dornberger/ | Books You Should Read: V-2 By Walter Dornberger | Tom Nardi | [
"Hackaday Columns",
"History",
"Original Art",
"Space"
] | [
"A-4",
"space",
"V-2",
"Walter Dornberger",
"Wernher von Braun",
"world war II"
] | In an era where we can watch rockets land on their tails
Buck Rogers
-style live on YouTube, it’s difficult to imagine a time when even the most basic concepts of rocketry were hotly debated. At the time, many argued that the very concept of a
liquid fueled rocket was impossible
, and that any work towards designing pr... | 63 | 22 | [
{
"comment_id": "4181044",
"author": "komradebob",
"timestamp": "2017-11-03T17:18:43",
"content": "One of the things that I was curious about as a youth was what in the world could they make the deflectors in the stream of rocket exhaust used to steer the rocket out of.The answer? Graphite. Big bloc... | 1,760,374,611.406459 | ||
https://hackaday.com/2017/11/03/googles-inception-thinks-this-turtle-is-a-gun/ | Google’s Inception Sees This Turtle As A Gun; Image Recognition Camouflage | Christian Trapp | [
"3d Printer hacks",
"News"
] | [
"ai",
"camouflage",
"computer vision",
"Google Inception",
"image recognition",
"inception",
"neural networks"
] | The good people at MIT’s Computer Science and Artificial Intelligence Laboratory [CSAIL] have found a way of
tricking Google’s InceptionV3 image classifier
into seeing a rifle where there actually is a turtle. This is achieved by presenting the classifier with what is called ‘adversary examples’.
Adversary examples are... | 52 | 18 | [
{
"comment_id": "4180947",
"author": "TacticalNinja",
"timestamp": "2017-11-03T15:40:40",
"content": "It’s probably a prototype weapon we didn’t know about.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4180983",
"author": "Alice",
"timestam... | 1,760,374,611.108754 | ||
https://hackaday.com/2017/11/03/yellowing-the-plastic-equivalent-of-a-sunburn/ | Yellowing: The Plastic Equivalent Of A Sunburn | Bob Baddeley | [
"chemistry hacks",
"classic hacks",
"Featured",
"Interest",
"Slider"
] | [
"Chemistry",
"hydrogen peroxide",
"plastic",
"restoration",
"retr0brite",
"retrobright",
"vintage",
"yellow plastic"
] | Your fancy white electronic brick of consumer electronics started off white, but after some time it yellowed and became brittle. This shouldn’t have happened; plastic is supposed to last forever. It turns out that plastic enclosures are vulnerable to the same things as skin, and the effects are similar. When they are s... | 62 | 25 | [
{
"comment_id": "4180836",
"author": "Asaf",
"timestamp": "2017-11-03T14:16:02",
"content": "The 8 Bit Guy over on Youtube has been retrobriting things for a while now, and he’s experimented with different techniques. Check him out:https://www.youtube.com/results?search_query=8+bit+guy+restoration&p... | 1,760,374,611.301618 | ||
https://hackaday.com/2017/11/03/esp8622-as-a-tape-drive/ | ESP8266 As A Tape Drive | Rich Hawkes | [
"classic hacks",
"computer hacks",
"Microcontrollers"
] | [
"attiny85",
"ESP8266",
"kim-1",
"MOS Technology 6502",
"tape recorder"
] | 1976 was the year the Apple I was released, one of several computers based on the MOS 6502 chip. MOS itself released the KIM-1 (Keyboard Input Monitor) initially to demonstrate the power of the chip. The single board computer had two connectors on it, one of which could be used for a tape recorder for long-term storage... | 25 | 8 | [
{
"comment_id": "4180566",
"author": "richfiles",
"timestamp": "2017-11-03T11:41:21",
"content": "Wish I had one of these make for **Insert vintage 1970s/80s computer here**.Man, that looks useful!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4180615",
... | 1,760,374,611.557915 | ||
https://hackaday.com/2017/11/03/meccano-piston-pump-made-with-a-syringe/ | Meccano Piston Pump Made With A Syringe | John Baichtal | [
"Tool Hacks"
] | [
"meccano",
"syringe",
"syringe pump"
] | [Mohamed Sami]
built a syringe pump out of Meccano building set parts
. It consists of a simple framework with a DC motor mounted on it that actuates the syringe when powered. A check valve harvested from an ordinary household spray bottle keeps the syringe from sucking back liquid that it has just pumped out, so it ca... | 8 | 4 | [
{
"comment_id": "4180093",
"author": "None",
"timestamp": "2017-11-03T08:18:20",
"content": "I justhackedmade a coffee with a coffee machine! No mechanical drawings, though.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4180762",
"author": "alfcoder... | 1,760,374,611.718111 | ||
https://hackaday.com/2017/11/02/building-a-monster-floodlight-out-of-scrap/ | Building A Monster Floodlight Out Of Scrap | John Baichtal | [
"LED Hacks"
] | [
"big honkin'"
] | When the apocalypse comes, we want [Justin] on our team! He made a
hefty 400 W work light
out of four 100 W LEDs mounted to a giant, aluminum slab-like heat sink he had lying around. He manufactured a diffuser for the LEDs by cutting down what appeared to be a old broken fluorescent light fixture’s cover, with side pla... | 29 | 7 | [
{
"comment_id": "4179600",
"author": "Galane",
"timestamp": "2017-11-03T05:28:44",
"content": "Gul Dukat: “How many lights are there?”Picard: “There are NO lights!”Gul Dukat: “No lights???”Picard: “YOU FRIED MY RETINAS YOU SCALY IDIOT!”",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,611.622775 | ||
https://hackaday.com/2017/11/02/creating-modular-storage-out-of-used-filament-spools/ | Creating Modular Storage Out Of Used Filament Spools | John Baichtal | [
"3d Printer hacks"
] | [
"3d printer filament",
"modular storage",
"spindle",
"storage"
] | [Alec Richter] had a good idea on how he could convert the leftover filament spindles from his 3D printer into
multi-compartment storage
. An empty spindle is fitted with several trays that rotate out from the circle for easy access. With multiple spools rotating on a central axle, you can really see how a bunch of par... | 20 | 9 | [
{
"comment_id": "4179200",
"author": "DainBramage",
"timestamp": "2017-11-03T02:15:17",
"content": "Seems a bit impractical to me. I’m all about modular storage, but by the time you pay for all the filament and spend all the time needed to make the prints that go to this project, you might as well h... | 1,760,374,611.675907 | ||
https://hackaday.com/2017/11/02/why-wait-just-plate-your-own-pcb-vias/ | Why Wait? Just Plate Your Own PCB Vias | Kristina Panos | [
"chemistry hacks",
"Misc Hacks"
] | [
"custom PCB",
"diy pcb",
"graphite paint",
"through hole"
] | [Jan Mrázek] is a pro when it comes to rolling his own PCBs. He can crank out a 6/6 mil double-sided PCB in 45 minutes flat.
As a challenge to his prowess, he decided to experiment with plating through-hole PCBs at home
, because sometimes you just can’t wait for China to deliver the goods.
The key here is to make a no... | 34 | 12 | [
{
"comment_id": "4178961",
"author": "RW ver 0.0.1",
"timestamp": "2017-11-02T23:11:34",
"content": "Test all your pencils, you’ll find some quite conductive ones, scribble round holes with those.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4179082",
... | 1,760,374,611.78463 | ||
https://hackaday.com/2017/11/02/eavesdropping-with-an-esp8266/ | Eavesdropping With An ESP8266 | James Hobson | [
"Microcontrollers",
"Security Hacks"
] | [
"eavesdropping",
"ESP8266",
"NodeMCU",
"PIC 18 MCU",
"samsung",
"spy"
] | In the old days, spies eavesdropped on each other using analog radio bugs. These days, everything’s in the cloud. [Sebastian] from [Hacking Beaver] wondered if he could make a WiFi bug that was small and cheap besides. Enter the ESP8266 and
some programming wizardry
.
[Sebastian] is using a NodeMCU but suggests that i... | 16 | 8 | [
{
"comment_id": "4178859",
"author": "joe",
"timestamp": "2017-11-02T20:42:14",
"content": "He could easily do adpcm to cut the bitrate in half with little processing overhead and probably entropy encode it from there. Probably can’t do anything with the complexity of mp3 encoding, though its powerf... | 1,760,374,612.02318 | ||
https://hackaday.com/2017/11/02/hackaday-prize-entry-open-bike-shoe/ | Hackaday Prize Entry: Open Bike Shoe | John Baichtal | [
"The Hackaday Prize"
] | [
"2017 Hackaday Prize",
"3d printing",
"fashion",
"fashion hacks. I'm not kidding.",
"open source",
"shoes"
] | Shoes are some of the most complex pieces of equipment you can buy. There’s multiple materials ranging from foam to weird polyesters in a simple sneaker, and if you dig into shoes for biking, you’ll find some carbon fiber. All these layers are glued together, stitched, and assembled into a functional piece of exercise ... | 24 | 6 | [
{
"comment_id": "4178770",
"author": "Greg A",
"timestamp": "2017-11-02T18:35:43",
"content": "not quite what i’m interested in, but i’m so excited that people are trying to figure out home made / open source shoes. as a someone with flat feet who puts on a lot of miles, i have long tried to figure... | 1,760,374,612.08154 | ||
https://hackaday.com/2017/11/01/the-internet-of-jack-o-lanterns/ | The Internet Of Jack-O’-Lanterns | James Hobson | [
"Holiday Hacks"
] | [
"D1 Mini",
"ESP8266",
"halloween",
"IoT",
"pumpkin",
"Wemos"
] | As the candy rush fades, the Halloween hacks continue pouring in. [Jeremy S Cook] has taken a few fundamental concepts and dressed them up inside the
smartest pumpkin on the block
.
This pumpkin has a WEMOS D1 Mini ESP8266 brain, LED eyes in place of a candle for illumination, and a small USB power bank for power.
The ... | 2 | 2 | [
{
"comment_id": "4178090",
"author": "echodelta",
"timestamp": "2017-11-02T02:34:03",
"content": "Most look menacing and have a mouth full of teeth. This one, says “duh?”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4178503",
"author": "Jeremy S Cook",
... | 1,760,374,611.973188 | ||
https://hackaday.com/2017/11/01/add-intuitiveness-to-openscad-with-encoders/ | Add Intuitiveness To OpenSCAD With Encoders | Brian McEvoy | [
"3d Printer hacks",
"Arduino Hacks"
] | [
"3d",
"arduino",
"completed",
"convenient",
"encoder",
"keyboard",
"modelng",
"open source",
"openscad",
"OpenSource",
"OpenVectorKB",
"rotary",
"turn",
"unity",
"vector"
] | The first time I saw 3D modeling and 3D printing used practically was at a hack day event. We printed simple plastic struts to hold a couple of spring-loaded wires apart. Nothing revolutionary as far as parts go but it was the moment I realized the value of a printer.
Since then, I have used OpenSCAD because that is wh... | 44 | 13 | [
{
"comment_id": "4177774",
"author": "Daren Schwenke",
"timestamp": "2017-11-01T20:14:38",
"content": "Your openscad source onhttp://24hourengineer.com/2017/10/2017-10-29-su-vector-editing-keyboard.htmlis a dead link.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment... | 1,760,374,611.938433 | ||
https://hackaday.com/2017/11/01/hackaday-prize-entry-volturnus-rov-rules-the-river/ | Hackaday Prize Entry: Volturnus ROV Rules The River | Kristina Panos | [
"The Hackaday Prize"
] | [
"2017 Hackaday Prize",
"OBA",
"pollution",
"rov",
"UV light",
"water pollution"
] | Water is kind of like information: both are a vital part of life and are found all around us. But not all water or information is healthy. Much of it may look harmless, but is actually polluted. A staggering number of people in the world have no access to fresh, clean water. ROVs can collect samples and detect pollutio... | 2 | 1 | [
{
"comment_id": "4178403",
"author": "Dodo",
"timestamp": "2017-11-02T09:56:53",
"content": "Interesting, although I find it a bit strange to put all the electronics shore-side. It is true you save some money on integration and waterproofing, but you easily loose that again in increased tether costs... | 1,760,374,612.122495 | ||
https://hackaday.com/2017/11/01/a-teardown-with-a-twist-1975-sinclair-scientific-calculator/ | Teardown With A Twist: 1975 Sinclair Scientific Calculator | Jenny List | [
"classic hacks",
"Engineering",
"Hackaday Columns",
"Slider",
"Teardown"
] | [
"70's calculators",
"calculator",
"calculators",
"sinclair",
"sinclair scientific"
] | When writing
a recent piece about Reverse Polish Notation
, or RPN, as a hook for my writing I retrieved my Sinclair Scientific calculator from storage. This was an important model in the genesis of the scientific calculator, not for being either a trailblazer or even for being especially good, but for the interesting ... | 78 | 25 | [
{
"comment_id": "4177361",
"author": "Ren",
"timestamp": "2017-11-01T17:11:31",
"content": "Are the Function keys 3-way rocker switches?(i.e. Why are there up/down arrows beside each?)The “+” is also used as the “Enter” key?",
"parent_id": null,
"depth": 1,
"replies": [
{
"... | 1,760,374,612.343383 | ||
https://hackaday.com/2017/11/01/friday-hack-chat-fundamentals-of-rf/ | Friday Hack Chat: Fundamentals Of RF | Brian Benchoff | [
"Hackaday Columns"
] | [
"Hack Chat",
"RF"
] | Designing a system for communication over RF is a dark art. It’s an obscure domain filled with photonmancy, wires going every which way, and imaginary numbers. RF is reserved entirely for wizards. The guy who simplified Maxwell’s equations into the form we now use
went literally insane
and replaced all the furniture in... | 10 | 8 | [
{
"comment_id": "4177320",
"author": "Mike Massen",
"timestamp": "2017-11-01T16:26:28",
"content": "Ah great a Friday Hack Chat which I am seeing on a Wednesday Evening/Thursday Morning @ GMT+8Is there another time zone I need to be apprised about perchance – is the USA on this planet – I do wonder ... | 1,760,374,612.452516 | ||
https://hackaday.com/2017/11/01/how-to-build-an-airplane-in-a-month-and-a-half/ | How To Build An Airplane In A Month And A Half | Brian Benchoff | [
"Transportation Hacks"
] | [
"airplane",
"homebuilt",
"peter sripol",
"rc",
"ultralight"
] | For the last few weeks, RC pilot extraordinaire [Peter Sripol] has been working on his biggest project to date. It’s effectively a manned RC plane, now legally a Part 103 ultralight. Now all that work is finally bearing fruit.
[Peter] is flying this plane on some short hops down a grass runway
. He’s flying it, and pro... | 49 | 16 | [
{
"comment_id": "4177251",
"author": "shaany",
"timestamp": "2017-11-01T15:07:59",
"content": "It’s a really nice build.Loved watching it come together in his build videos",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6262102",
"author": "Michael",
... | 1,760,374,612.538101 | ||
https://hackaday.com/2017/11/01/beyond-conway-cellular-automata-from-all-walks-of-life/ | Beyond Conway: Cellular Automata From All Walks Of Life | Christian Trapp | [
"Featured",
"Interest",
"Original Art"
] | [
"cellular automata",
"computing history",
"conway",
"von neumann",
"Wolfram"
] | There’s a time in every geek’s development when they learn of Conway’s
Game of Life
. This is usually followed by an afternoon spent on discovering that the standard rule set has been chosen because most of the others just don’t do interesting things, and that every idea you have has already been implemented. Often eno... | 23 | 12 | [
{
"comment_id": "4177215",
"author": "Ostracus",
"timestamp": "2017-11-01T14:43:07",
"content": "“The grid can have any number of dimensions, but with three dimensions the visual representation starts to get into the way, and above that most human brains stop working, so two-dimensional grids are th... | 1,760,374,612.407188 | ||
https://hackaday.com/2017/10/31/rita-levi-montalcini-had-nerves-of-steel/ | Rita Levi-Montalcini Had Nerves Of Steel | Kristina Panos | [
"Biography",
"Hackaday Columns",
"History",
"Original Art"
] | [
"central nervous system",
"nerve growth factor",
"nobel prize winners",
"Rita Levi-Montalcini",
"tumor"
] | When we think of role models, it’s easy to categorize them narrowly on the basis of their skill set. We might say that he’s a great mathematician, or that she is an excellent chemist. Some role models are admirable on a deeper, human level. These are the kinds of heroes who obliterate all the obstacles dropped in front... | 26 | 12 | [
{
"comment_id": "4176157",
"author": "Ostracus",
"timestamp": "2017-10-31T17:09:21",
"content": "” The discoveries that she made underlie much of modern research into neurologically degenerative diseases like Alzheimer’s and cancer, and NGF is used experimentally the treatment of both.”Spinal cord d... | 1,760,374,612.718453 | ||
https://hackaday.com/2017/10/31/mike-harrisons-reverse-engineering-workshop/ | Mike Harrison’s Reverse Engineering Workshop | Mike Szczys | [
"cons",
"Teardown"
] | [
"manufacturing",
"Mike Harrison",
"reverse engineer",
"teardown",
"workshop"
] | Hardware teardowns are awesome when guided by experts. One of our favorites over the years has been [Mike Harrison], who has conquered teardowns of some incredibly rare and exquisitely engineered gear, sharing the adventure
on his YouTube channel: mikeselectricstuff
. Now he’s putting on a workshop to walk through some... | 11 | 5 | [
{
"comment_id": "4176112",
"author": "Ostracus",
"timestamp": "2017-10-31T16:07:31",
"content": "Hopefully all that “incredibly rare and exquisitely engineered gear” is put back together and running, with no parts left over. ;-)",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,612.765148 | ||
https://hackaday.com/2017/10/31/pumpkin-piano-promises-a-gourd-time/ | Pumpkin Piano Promises A Gourd Time | Lewin Day | [
"Holiday Hacks"
] | [
"capacitive touch",
"halloween",
"piano",
"pumpkin",
"raspberry pi",
"touch sensitive"
] | Fall – it’s that time of year that brings falling leaves, Hallowe’en, and a pumpkin version of everything that you hold dear. In this case, it’s not a latte – it’s
[Robert Vorthman]’s Pumpkin Piano.
[Robert] took a straightforward approach to the build, pressing a Raspberry Pi into service as the backbone of the operat... | 9 | 6 | [
{
"comment_id": "4176073",
"author": "RW ver 0.0.1",
"timestamp": "2017-10-31T15:28:34",
"content": "A gourd time, ha ha he hurr hmmph ..http://www.reactiongifs.us/wp-content/uploads/2014/01/ba_dum_tss_pirates_band_of_misfits.gif",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,612.907813 | ||
https://hackaday.com/2017/10/31/review-iot-data-logging-services-with-mqtt/ | Review: IoT Data Logging Services With MQTT | Sean Boyce | [
"Featured",
"Reviews",
"Skills"
] | [
"Cayenne",
"DataLogging",
"internet of things",
"IoT",
"phant",
"sensors",
"sparkfun",
"thingsboard",
"thingspeak",
"Ubidots"
] | For the last few months, I had been using Sparkfun’s Phant server as a data logger for a small science project. Unfortunately, they’ve had some
serious technical issues
and have discontinued the service. Phant was good while it lasted: it was easy to use, free, and allowed me to download the data in a CSV format. It sh... | 11 | 9 | [
{
"comment_id": "4176042",
"author": "jwcrawley",
"timestamp": "2017-10-31T15:02:45",
"content": "Uhhhhhhhhhhhh… Or you can go get one of those el-cheapo VPS’es, throw linux on them, and install Mosquitto. I’ve seen them as low as $20/year, and can be used for a heck of a lot more than just MQTT. An... | 1,760,374,612.863823 | ||
https://hackaday.com/2017/10/31/10-year-old-bug-crushed-by-hacker-on-a-mission/ | 10 Year Old Bug Crushed By Hacker On A Mission | Christian Trapp | [
"Linux Hacks",
"Video Hacks"
] | [
"bug",
"graphics card",
"open source software",
"pci",
"virtual machine"
] | PCI pass through is the ability of a virtualized guest system to directly access PCI hardware. Pass through for dedicated GPUs has just recently been added to the Linux kernel-based virtual machine. Soon afterward, users began to find that switching on nested page tables (NPT), a technology intended to provide hardware... | 11 | 6 | [
{
"comment_id": "4175814",
"author": "reds",
"timestamp": "2017-10-31T11:07:39",
"content": "props to him, nicely done quickpatch",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4175904",
"author": "deshipu",
"timestamp": "2017-10-31T12:41:10",
"con... | 1,760,374,612.810332 | ||
https://hackaday.com/2017/10/31/hoverboard-reborn-for-electric-rollerblading/ | Hoverboard Reborn For Electric Rollerblading | Dan Maloney | [
"Transportation Hacks"
] | [
"18650",
"BLDC",
"booster",
"e-bike",
"esc",
"hoverboard",
"motor",
"pusher",
"roller blades"
] | Rollerblading is fun, but who needs all that pesky exercise? Wouldn’t strapping on the blades be so much more tempting if you had
an electric pusher motor
to propel you along your way?
We have to admit that we raised a wary eyebrow as we first watched [MakerMan]’s video below. We thought it was going to be just another... | 8 | 6 | [
{
"comment_id": "4175938",
"author": "Kyle",
"timestamp": "2017-10-31T13:20:38",
"content": "+1 for the aggressive skates.+2 for the hack.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4176585",
"author": "Chris",
"timestamp": "2017-11-01T01... | 1,760,374,612.953231 | ||
https://hackaday.com/2017/10/30/an-amstrad-pcw-for-the-21st-century/ | An Amstrad PCW For The 21st Century | Jenny List | [
"classic hacks"
] | [
"8 bit",
"Amstrad",
"amstrad PCW",
"cpm"
] | If you were a computer-mad teen in the late 1980s, you were probably in the process of graduating from an 8-bit machine to a 16-bit one, maybe an Amiga, or an Atari ST. For the first time though you might not have been the only computer owner in your house, because there was every chance your parents might have joined ... | 12 | 6 | [
{
"comment_id": "4175604",
"author": "Mungoj",
"timestamp": "2017-10-31T07:28:51",
"content": "Alan Sugar, our version of Steve Jobs or Bill Gates. Oh deary me.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6756842",
"author": "Jos",
"timest... | 1,760,374,613.000583 | ||
https://hackaday.com/2017/11/01/mercy-me-thanks-for-the-heals/ | Mercy Me, Thanks For The Heals | James Hobson | [
"3d Printer hacks",
"Weapons Hacks"
] | [
"game",
"heal",
"Mercy",
"Overwatch",
"prop",
"staff",
"video"
] | Sometimes, you have to call in the experts. [CorSec Props], builders of fine props, costumes and more, were commissioned to replicate Mercy’s healing staff from the game Overwatch. Sounds simple, but the customer — right as they always are — requested that it
spin and light up just like the original
.
To get a look at ... | 5 | 5 | [
{
"comment_id": "4177068",
"author": "agijoioj",
"timestamp": "2017-11-01T12:20:56",
"content": "TF2 is still a better expirience. It’s also free, like Tibia.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4177144",
"author": "boxinabot",
"timestamp": ... | 1,760,374,613.24626 | ||
https://hackaday.com/2017/11/01/bluetooth-bedroom-clock/ | Bluetooth Bedroom Clock! | James Hobson | [
"3d Printer hacks",
"ATtiny Hacks",
"clock hacks"
] | [
"bedroom",
"bluetooth",
"clock",
"ds1307"
] | When [decino]’s old bedroom clock finally bit the dust, he built himself a new one from scratch for
fun and functionality
.
Initially, he wanted to solder Adafruit NeoPixel lights onto four prototype boards, using a mini-USB for power and a DS1307 to keep the time. However, after soldering the board for the first digit... | 12 | 9 | [
{
"comment_id": "4176882",
"author": "srjphioj",
"timestamp": "2017-11-01T09:08:02",
"content": "But why? You’ve got an alarm clock in your phone.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4177395",
"author": "Dotard",
"timestamp": "2017... | 1,760,374,613.290487 | ||
https://hackaday.com/2017/10/31/graphene-biosensors-are-extra-quiet/ | Graphene Biosensors Are Extra Quiet | Al Williams | [
"Misc Hacks"
] | [
"1/f noise",
"graphene",
"hiv",
"ISFET",
"sensors"
] | Graphene has attracted enormous interest for electrically detecting chemical and biological materials. However, because the super material doesn’t act like a normal semiconductor, transistors require multiple layers of the material, and that’s bad for 1/f noise especially when the transistors operate at maximum transco... | 9 | 3 | [
{
"comment_id": "4176905",
"author": "Fireshard",
"timestamp": "2017-11-01T09:39:52",
"content": "Can someone point me to why several layers worsen 1/f noise?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4177027",
"author": "Markus",
"times... | 1,760,374,613.333017 | ||
https://hackaday.com/2017/10/31/ben-krasnow-hacks-e-paper-for-fastest-refresh-rate/ | [Ben Krasnow] Hacks E-Paper For Fastest Refresh Rate | Steven Dufresne | [
"Video Hacks"
] | [
"ben krasnow",
"e-ink",
"e-paper",
"eink",
"epaper"
] | [Ben Krasnow] is known for his clear explanations alongside awesome hardware, being one of only a few hackers who owns an electron microscope. This time he’s explaining
how E-paper works while modifying the firmware of a 4.2 inch E-paper module to get a higher refresh rate
. As for the awesome hardware, he also analyse... | 26 | 7 | [
{
"comment_id": "4176676",
"author": "James Analytic",
"timestamp": "2017-11-01T03:02:40",
"content": "Impressive!!! I’m not sure why he scratched the pixel traces? I was reading something else also while watching. Was that to determine their signal effect on the code? I’ll have to try to watch ... | 1,760,374,613.564794 | ||
https://hackaday.com/2017/10/31/making-braille-signs-out-of-pcbs/ | Making Braille Signs Out Of PCBs | John Baichtal | [
"Misc Hacks"
] | [
"braille",
"braille display",
"pcb",
"soldering"
] | [jg] recently passed some damaged Braille signs and
took on the challenge of repairing them
. Informed by his recent work on
PCB lapel pins
, [jg] immediately thought of using circuit boards for this project. He’d noticed that round solder pads made for uniform hills of solder, and this reminded him of the bumps in Bra... | 25 | 11 | [
{
"comment_id": "4176466",
"author": "ctag",
"timestamp": "2017-10-31T23:13:31",
"content": "That’s a really cool, novel idea.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4176486",
"author": "Saabman",
"timestamp": "2017-10-31T23:34:22",
"conten... | 1,760,374,613.499599 | ||
https://hackaday.com/2017/10/31/homebuilt-laser-engraver-using-salvaged-parts/ | Homebuilt Laser Engraver Using Salvaged Parts | Tom Nardi | [
"cnc hacks",
"Laser Hacks"
] | [
"cnc",
"laser engraver",
"Opt Lasers",
"PLH3D-6W-XF",
"scrap build"
] | Now that anyone can go online and get a fairly decent 3D printer for around $200, they’ve officially fallen out of the “Elite Hacker” arsenal and are now normal, if perhaps highly specialized, tools. That’s great for the 3D printing community as a whole, but what about those who want to be on the fringe of technology? ... | 25 | 4 | [
{
"comment_id": "4176331",
"author": "DKay (@Futuneral)",
"timestamp": "2017-10-31T20:07:51",
"content": "Why salvage parts if you can afford $550 laser module..",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4176334",
"author": "RW ver 0.0.1",
... | 1,760,374,613.667751 | ||
https://hackaday.com/2017/10/31/hackaday-prize-entry-radio-telescope-interferometer/ | Hackaday Prize Entry: Radio Telescope Interferometer | John Baichtal | [
"The Hackaday Prize"
] | [
"2017 Hackaday Prize",
"ESP32",
"Michelson interferometer",
"radio interferometry"
] | Radio telescopes are one of the dark arts of science. Not only do you have to deal with RF wizardry, the photons you’re detecting are so far out of the normal human experience that you really don’t know what you’re looking at. It’s hard, but that’s the point — there’s a lot to learn with a radio telescope.
[alfazoOm]’s... | 7 | 2 | [
{
"comment_id": "4176259",
"author": "James Analytic",
"timestamp": "2017-10-31T18:45:38",
"content": "Interesting, I’ll have to read into more detail. I was reading about the NASA Inspire and JOVE projects recently and their design. I haven’t read about a Michelson Interferometer radio telescope.... | 1,760,374,613.606852 | ||
https://hackaday.com/2017/10/30/quick-and-easy-solar-hot-air-balloon/ | Quick And Easy Solar Hot Air Balloon | Al Williams | [
"Solar Hacks"
] | [
"hot air balloon",
"solar",
"solar balloon",
"solar hot air balloon"
] | [Becky Stern] likes to harness the power of the Sun. Most of us will immediately think of solar cells and other exotic solar energy techniques. But [Becky] shows how to make
a hot air balloon
using nothing but tape and garbage bags.
The idea is quite simple. You form a large envelope from black trash bags and fill it w... | 63 | 15 | [
{
"comment_id": "4175385",
"author": "Ostracus",
"timestamp": "2017-10-31T02:13:59",
"content": "“Most of us will immediately think of solar cells and other exotic solar energy techniques.”Solar pond using brine.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id":... | 1,760,374,613.810614 | ||
https://hackaday.com/2017/10/30/scratchbuilt-cryptex-would-make-da-vinci-weep/ | Scratchbuilt Cryptex Would Make Da Vinci Weep | Tom Nardi | [
"Misc Hacks"
] | [
"cryptex",
"engagement ring",
"leonardo da vinci",
"woodworking"
] | Here’s a fun fact, the kind of thing that you might (but we definitely did not) find out when writing a blog post: Dan Brown actually made up the cryptex for his book,
The Da Vinci Code.
We therefore have Mr Brown, with a bit of help from the filmmakers over at Sony, to thank every time we see somebody make their own v... | 8 | 6 | [
{
"comment_id": "4175252",
"author": "Olsen",
"timestamp": "2017-10-31T00:30:44",
"content": "How romantic!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4175438",
"author": "RW ver 0.0.1",
"timestamp": "2017-10-31T03:09:20",
"content": "Just a th... | 1,760,374,613.712192 | ||
https://hackaday.com/2017/10/30/pull-passwords-out-of-silicon/ | Pull Passwords Out Of Silicon | Elliot Williams | [
"hardware"
] | [
"ctf",
"hardware hacking",
"pwn2win",
"silicon",
"vlsi"
] | [q3k] got tipped off to a very cool problem in the ongoing Pwn2Win capture-the-flag, and he blew it out of the water by
decoding the metal interconnect layers that encode a password in a VLSI IC
. And not one to rent someone else’s netlist extraction code, he did it by
writing his own
.
The problem in
the Pwn2Win CTF
c... | 15 | 5 | [
{
"comment_id": "4175067",
"author": "RW ver 0.0.1",
"timestamp": "2017-10-30T20:09:30",
"content": "Hardcoded password? That’s the kind of thing an idiot would have on his luggage.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4175072",
"author": "... | 1,760,374,615.582869 | ||
https://hackaday.com/2017/10/30/hackaday-prize-entry-arduino-video-display-shield/ | Hackaday Prize Entry: Arduino Video Display Shield | John Baichtal | [
"The Hackaday Prize"
] | [
"2017 Hackaday Prize",
"arduino",
"arduino shield",
"video",
"video display"
] | The Arduino is the standard for any introduction to microcontrollers. When it comes to displaying video, the bone stock Arduino Uno is severely lacking. There’s just not enough memory for a framebuffer, and it’s barely fast enough to race the beam. If you want video from an Arduino, it’s either going to be crappy, or y... | 18 | 5 | [
{
"comment_id": "4175003",
"author": "Edward",
"timestamp": "2017-10-30T18:40:52",
"content": "One should be able to get video out of an Arduino with extra circuitry. Breadboard/Prototype shield. I got video from a 1MHz 6800 following Don Lancasters idea seen in his “Son of Cheap Video Cookbook”. ... | 1,760,374,616.352489 | ||
https://hackaday.com/2017/10/30/coffee-conspiracy-and-citizen-science-an-introduction-to-iodometry/ | Coffee, Conspiracy, And Citizen Science: An Introduction To Iodometry | Sean Boyce | [
"chemistry hacks",
"Hackaday Columns",
"home hacks",
"Interest"
] | [
"analytical chemistry",
"coffee",
"health",
"iodometry"
] | I take coffee very seriously. It’s probably the most important meal of the day, and apparently the largest overall dietary source of antioxidants in the United States of America. Regardless of whether you believe antioxidants have a health effect (I’m skeptical), that’s interesting!
Unfortunately, industrially roasted ... | 40 | 17 | [
{
"comment_id": "4174958",
"author": "Jon",
"timestamp": "2017-10-30T17:41:57",
"content": "Is there not a need to control for false positives? I would think that in selecting fillers and non-coffee chemicals one would need a similar amount of acids to approximate the taste. Do those fillers and rep... | 1,760,374,615.664673 | ||
https://hackaday.com/2017/10/30/mechanical-marvel-trades-courage-for-chocolate/ | Mechanical Marvel Trades Courage For Chocolate | Steven Dufresne | [
"Toy Hacks"
] | [
"candy dispenser",
"halloween",
"lego",
"lego mindstorms",
"mindstorms",
"Mindstorms EV3"
] | When we see what [Jason Allemann] does with LEGO, we wonder why more one-offs aren’t made this way. This time he’s made
a Halloween mechanical marvel
that will surely scare more kids than anything else they’ll encounter on their rounds — so much so that many may even decline the chocolate it dispenses. Who wouldn’t whe... | 4 | 2 | [
{
"comment_id": "4174934",
"author": "CityZen",
"timestamp": "2017-10-30T17:09:44",
"content": "Nice! Just needs some sound and lighting effects to be over the top.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4175902",
"author": "[TheDarkTiger]",
... | 1,760,374,615.745968 | ||
https://hackaday.com/2017/10/30/surfboard-industry-wipes-out-innovation-soon-follows/ | Surfboard Industry Wipes Out, Innovation Soon Follows | Bryan Cockfield | [
"Featured",
"Interest",
"Original Art",
"Slider"
] | [
"competition",
"environment",
"industry",
"innovation",
"regulation",
"surfboards"
] | For decades, Gordon Clark and his company Clark Foam held an almost complete monopoly on the surfboard blank market. “Blanks” are pieces of foam with reinforcing wood strips (called “stringers”) in a rough surfboard shape that board manufacturers use to make a finished product, and Clark sold almost every single one of... | 84 | 14 | [
{
"comment_id": "4174489",
"author": "Alphatek",
"timestamp": "2017-10-30T14:08:19",
"content": "As we have explained to us “blanks”, “glassing” and “stringers”, why do we not also have explained what “airs” are (jumping)? The audience is primarily technical and probably already knew the first three... | 1,760,374,616.10813 | ||
https://hackaday.com/2017/10/29/hi-res-body-sized-pressure-sensor-mat/ | Hi-Res, Body-Sized Pressure Sensor Mat | Steven Dufresne | [
"Misc Hacks"
] | [
"force sensitive resistor",
"force sensor",
"shift registers",
"velostat"
] | Hackers often find uses for pressure sensitive materials, detecting footfalls during walking or keypresses in a synthesizer being two examples. [Marco Reps] decided he’d
make a hi-res, body-sized pressure sensitive mat
mainly for computer-guided physiotherapy, though he wouldn’t rule out using it for gaming (twister an... | 15 | 10 | [
{
"comment_id": "4172663",
"author": "gun4as",
"timestamp": "2017-10-29T15:18:34",
"content": "I’ve been actually following this guy for a while. Really good sense of humor and fun to watch.It’s worth checking some other stuff he has been doing.",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,374,616.161597 | ||
https://hackaday.com/2017/10/29/junkbox-freezer-alarm-keeps-steaks-safe/ | Junkbox Freezer Alarm Keeps Steaks Safe | Dan Maloney | [
"home hacks"
] | [
"555",
"alarm",
"comparator",
"current transformer",
"ferrite",
"freezer",
"fridge",
"GFCI",
"GFI",
"magnet wire",
"peak detector",
"refrrigerator"
] | A fully stocked freezer can be a blessing, but it’s also a disaster waiting to happen. Depending on your tastes, there could be hundreds of dollars worth of food in there, and the only thing between it and the landfill is an uninterrupted supply of electricity. Keep the freezer in an out-of-the-way spot and your food i... | 24 | 13 | [
{
"comment_id": "4172445",
"author": "Saabman",
"timestamp": "2017-10-29T11:19:10",
"content": "I like what he has come up with. It’s one of those situations that could be monitored in a number of different ways. The limitation I guess is what is in your junk box on a particular day.Another way coul... | 1,760,374,615.974903 | ||
https://hackaday.com/2017/10/29/analyzing-the-6502-with-python-and-cheap-dev-boards/ | Analyzing The 6502 With Python And Cheap Dev Boards | Brian Benchoff | [
"classic hacks",
"Tool Hacks"
] | [
"6502",
"logic analyser",
"protocol decoder",
"sigrok"
] | The Before Times were full of fancy logic analyzers. Connect the leads on these analyzers to a system, find that super special ROM cartridge, and you could look at the bus of a computer system in real time. We’ve come a long way since then. Now we have fast, cheap bits of hardware that can look at multiple inputs simul... | 10 | 8 | [
{
"comment_id": "4172281",
"author": "pelrun",
"timestamp": "2017-10-29T08:53:48",
"content": "And for those on the other team, there exists a protocol decoder that does the same thing for the Z80:https://sigrok.org/wiki/Protocol_decoder:Z80",
"parent_id": null,
"depth": 1,
"replies": []... | 1,760,374,615.709474 | ||
https://hackaday.com/2017/10/28/a-modern-upgraded-basic-stamp/ | A Modern, Upgraded BASIC Stamp | Brian Benchoff | [
"Crowd Funding"
] | [
"basic",
"basic stamp",
"LPC",
"nxp"
] | Back in the Before Times, when microcontroller development required ultraviolet light, building anything was a pain. You probably had to burn a ROM onto a chip with a parallel programmer, there was no in-circuit programming, and who knows what would happen if you needed a serial port.
This changed in the early 90s with... | 52 | 23 | [
{
"comment_id": "4172000",
"author": "drwho8 (@drwho8)",
"timestamp": "2017-10-29T05:05:57",
"content": "I beg your pardon! You mean Parallax. Microchip only makes the processors and probably the storage devices used on the Stamp. But how are you doing this with regards to the tribble invasion where... | 1,760,374,615.906626 | ||
https://hackaday.com/2017/10/28/automate-wire-prep-with-a-robot-wire-cutter/ | Automate Wire Prep With A Robot Wire Cutter | Dan Maloney | [
"Tool Hacks"
] | [
"automation",
"extruder",
"nano",
"production",
"servo",
"snippers",
"tooling",
"wire",
"wiring harness"
] | When you move from one-off builds to production scale, perhaps to meet that Kickstarter commitment or to keep your Tindie store stocked, you’re going to need to tool up. Jobs like building wiring harnesses can be tedious and time-consuming, so outsourcing them to
this robot wire cutter
might be a good idea.
The video b... | 21 | 12 | [
{
"comment_id": "4171891",
"author": "JB",
"timestamp": "2017-10-29T02:59:44",
"content": "Cool. Now I have a use for those cheap extruders that I have in my parts bin.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4171896",
"author": "Mart",
"timesta... | 1,760,374,615.806042 | ||
https://hackaday.com/2017/10/28/is-it-a-maglite-or-a-magnastat/ | Is It A MagLite Or A MagnaStat? | Jenny List | [
"Tool Hacks"
] | [
"cordless soldering iron",
"maglite",
"Magnastat",
"soldering",
"soldering iron",
"Weller"
] | [David Schneider]’s love affair with Weller temperature controlled soldering irons began many years ago, but when he came to the point of needing a cordless iron he had problems finding one that replicated his trusty mains-powered soldering station. His solution was simple, to build his own, and in a stroke of genius h... | 27 | 16 | [
{
"comment_id": "4171576",
"author": "Night",
"timestamp": "2017-10-28T23:23:19",
"content": "Neatly done, but do you really want to use soldering iron this heavy and bulky?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4171578",
"author": "RW ver 0... | 1,760,374,616.413029 | ||
https://hackaday.com/2017/10/28/this-mask-will-make-you-a-psycho/ | This Mask Will Make You A Psycho | James Hobson | [
"Misc Hacks"
] | [
"Borderlands",
"costume",
"game",
"halloween",
"mask",
"plaster",
"prop",
"video"
] | Videos games are a cornucopia of project ideas well-suited to the talents of makers and hackers, and Halloween is as good a time as any to show them off! Reddit user [Tavarin], a huge fan of the Boderlands video games, whipped up a plaster mask — replete with glowing eyes — of one of the game’s signature enemies:
the P... | 8 | 5 | [
{
"comment_id": "4171480",
"author": "arthurptj",
"timestamp": "2017-10-28T21:41:16",
"content": "not a hack :’-(",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4171493",
"author": "djsmiley2k",
"timestamp": "2017-10-28T21:52:11",
"co... | 1,760,374,616.486079 | ||
https://hackaday.com/2017/10/30/pcb-tesla-coil-is-perfect-desk-toy/ | PCB Tesla Coil Is Perfect Desk Toy | Tom Nardi | [
"classic hacks",
"hardware"
] | [
"elektor",
"pic",
"Singing Tesla coil",
"tesla coil",
"USB Power"
] | A Tesla coil easily makes it to the top spot on our list of “Mad Scientist” equipment we want for the lab, second only to
maybe
a Jacob’s Ladder. Even then, it’s kind of unfair advantage because you know people only want a Jacob’s Ladder for that awesome sound it makes. Sound effects not withstanding, it’s Tesla coil a... | 43 | 18 | [
{
"comment_id": "4174265",
"author": "Mike Massen",
"timestamp": "2017-10-30T11:08:58",
"content": "Brilliant, a great intro to the young re high voltage in conjunction withdesign achievement to an outcome. ie Great planning, execution & presentation :-)",
"parent_id": null,
"depth": 1,
... | 1,760,374,616.816543 | ||
https://hackaday.com/2017/10/30/this-drone-can-fly-swim-and-explode-wait-what/ | This Drone Can Fly, Swim, And Explode….. Wait, What? | James Hobson | [
"drone hacks",
"Robots Hacks"
] | [
"air",
"electrolysis",
"harvard",
"insect",
"micro",
"RoboBee",
"water",
"Wyss"
] | You’ve probably heard of micro-drones, perhaps even nano-drones, but there research institutions that shrink these machines down to the size of insects. Leading from the [Wiss Institute For Biologically Inspired Engineering] at Harvard University, a team of researchers have developed a miniscule robot that — after a qu... | 17 | 8 | [
{
"comment_id": "4174160",
"author": "Lord Nothing",
"timestamp": "2017-10-30T09:25:14",
"content": "cool, but will this scale up where you dont have to tether it to a controller?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4174307",
"author": "Re... | 1,760,374,616.538583 | ||
https://hackaday.com/2017/10/29/scratch-that-sdr/ | Scratch That SDR! | Jenny List | [
"Radio Hacks"
] | [
"LuaRadio",
"radio",
"scratch",
"sdr"
] | When you think of a software defined radio, what language might you consider reaching for to create the software part of the equation? C? C++, maybe?
How about Scratch?
“What, Scratch as in the visual programming language aimed at young people?”, we hear you cry incredulously. It’s not exactly the answer you’d expect f... | 16 | 4 | [
{
"comment_id": "4173990",
"author": "Ostracus",
"timestamp": "2017-10-30T06:40:51",
"content": "Be nice if GnuRadio did have a Scratch front-end.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4175030",
"author": "LOL",
"timestamp": "2017-10... | 1,760,374,616.869264 | ||
https://hackaday.com/2017/10/29/water-slide-ferris-wheel-slidewheel/ | Water Slide + Ferris Wheel = SlideWheel | Kristina Panos | [
"Misc Hacks",
"Slider"
] | [
"amusement park",
"ferris wheel",
"pendulum",
"structural engineering",
"water slide"
] | This might be German engineering at its funnest. [Wiegand Maelzer GmbH] have created
a new type of amusement park ride that combines the thrill of a water slide with the gentle revolutions of a Ferris wheel
.
Inspired by the wish of a young Swiss boy in 2012, the whimsical feat of engineering known as the SlideWheel wa... | 30 | 14 | [
{
"comment_id": "4173672",
"author": "Biomed",
"timestamp": "2017-10-30T02:36:44",
"content": "Adapt this to hamsters and rats and all the world round squeeks of pained dismay will curse and decry the inventor for turning 2 feet to the dish into 2 miles! But then again, they won’t be so fat anymore... | 1,760,374,617.326172 | ||
https://hackaday.com/2017/10/29/hackaday-links-%f0%9f%91%bb-%f0%9f%8e%83-spooky-edition-2017/ | Hackaday Links: ???? ???? Spooky Edition, 2017 | Brian Benchoff | [
"Hackaday Columns",
"Hackaday links"
] | [
"\"audiophiles\"",
"astronomy",
"astrophotography",
"fidget spinners",
"LED panel",
"telescope"
] | A few links posts ago, we wrote something about a company selling huge LED panels on eBay, ten panels for $50.
Those panels are gone now
, but a few lucky hackers got their hands on some cool hardware. Now there’s a project to reverse engineer these Barco NX-4 LED panels. Who’s going to be the first to figure out how t... | 23 | 11 | [
{
"comment_id": "4173365",
"author": "Nick Sayer (@nwsayer)",
"timestamp": "2017-10-29T23:29:07",
"content": "August is a smart lock that lets you grant access to delivery folks, dog walkers and the like. It’s an ACL for your premises, and as such, that concept itself is not necessarily insecure – i... | 1,760,374,617.037461 | ||
https://hackaday.com/2017/10/29/magnetic-tape-storage-may-not-be-retro/ | Magnetic Tape Storage May Not Be Retro | Brian McEvoy | [
"computer hacks",
"hardware"
] | [
"disk",
"magnetic tape",
"memory",
"portable",
"storage",
"tape",
"terabytes"
] | Magnetic storage is quickly becoming an antiquated technology but
IBM may have given it a few more years
. Currently, magnetic storage is still manufactured as hard disk drives (HDDs) but you won’t find a tape drive in a modern consumer computer. That’s not likely to change but IBM is pushing the envelope to make a tap... | 64 | 15 | [
{
"comment_id": "4173155",
"author": "RW ver 0.0.1",
"timestamp": "2017-10-29T20:05:08",
"content": "I’ll keep an eye out for that, in about 2040 when I build my “Ultimate 2017 vintage system” with an array made out of those 60TB SSDs I picked up at yard sales. Then at least I’ll be able to back it ... | 1,760,374,616.972535 | ||
https://hackaday.com/2017/10/29/immersive-vr-with-a-200-degree-stereoscopic-camera/ | Immersive VR With A 200-Degree Stereoscopic Camera | James Hobson | [
"FPGA",
"Virtual Reality"
] | [
"360 Photo",
"camera",
"photography",
"stereoscopic",
"vr"
] | VR is in vogue, but getting on board requires a steep upfront cost. Hackaday.io user [Colin Pate] felt that $800 was a bit much for even the cheapest commercial 360-degree 3D camera, so he thought: ‘why not make my
own for half that price
?’
[Pate] knew he’d need a lot of bandwidth and many GPIO ports for the camera ar... | 14 | 3 | [
{
"comment_id": "4172900",
"author": "Erik",
"timestamp": "2017-10-29T17:12:28",
"content": "“There are ways to capture stereoscopic images with only one camera, but it requires a little smoke and mirrors, or in this case, two cleverly mounted cameras with fish-eye lenses.”??????For certain exceptio... | 1,760,374,617.088896 | ||
https://hackaday.com/2017/10/28/instrument-packed-pedal-keeps-track-of-cyclists-power/ | Instrument Packed Pedal Keeps Track Of Cyclist’s Power | Dan Maloney | [
"Transportation Hacks"
] | [
"bicycle",
"bike",
"force",
"hx711",
"load cell",
"power",
"power meter",
"qi charger",
"strain gauge",
"Wemos"
] | Exactly how much work is required to pedal a bike? There are plenty of ways to measure the power generated by a cyclist, but a lot of them such as heavily instrumented bottom brackets and crank arms, can be far too expensive for casual use. But for $30 in parts you can build
this power-measuring bike pedal
. and find o... | 13 | 7 | [
{
"comment_id": "4171085",
"author": "3weadq3",
"timestamp": "2017-10-28T18:04:36",
"content": "Not bad! I’d be curious to see how these compare to a ‘real’ power meter in terms of accuracy. It’s not the easiest field; bicycles are pretty brutal environments.You do need two of them, though. One isn’... | 1,760,374,617.140687 | ||
https://hackaday.com/2017/10/28/why-only-use-one-controller-when-you-can-use-all-of-them/ | Why Only Use One Controller When You Can Use ALL Of Them? | James Hobson | [
"Arduino Hacks",
"Raspberry Pi"
] | [
"console",
"controller",
"game",
"multiplexer",
"registers",
"retro",
"retropie",
"video"
] | After booting up his RetroPie system, [jfrmilner] had the distinct feeling that something was off. Realizing that the modern Xbox 360 controller didn’t fit right when reliving the games of his youth, he rounded up all his
old controllers to make sure he always had the
right gamepad for the game
.
Wanting to keep the co... | 8 | 2 | [
{
"comment_id": "4170856",
"author": "RW ver 0.0.1",
"timestamp": "2017-10-28T14:18:24",
"content": "I’ll tell you why not, you’ll only have to be sitting there 30 mins before you’ve thoroughly braided all the cables together.. :-D",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,617.190138 | ||
https://hackaday.com/2017/10/28/haunting-a-smart-mirror-with-hue-and-alexa/ | Haunting A Smart Mirror With Hue And Alexa | Rich Hawkes | [
"Holiday Hacks"
] | [
"Amazon Alexa",
"AWS",
"halloween",
"Magic Mirror",
"philips hue",
"Raspberry Pi 3"
] | So, your smart mirror has been running for a while, but Halloween is coming up and you want to come up with some cool Halloween stuff to display on the mirror. If you’re looking for ideas, check out [Ben Eagan]’s cool
Haunted Smart Mirror
which connects the mirror via a Raspberry Pi with Amazon Alexa and Phillips Hue l... | 1 | 1 | [
{
"comment_id": "4178883",
"author": "Tobias Weis (@Tobias_M_Weis)",
"timestamp": "2017-11-02T21:05:25",
"content": "Nice idea, although I still don’t like the idea of Alexa. I built something similar a year ago for my smartmirror, called it the bloody-mary-protocol. It used CMU’s sphinx speech reco... | 1,760,374,617.224528 | ||
https://hackaday.com/2017/10/28/simplesumo-bots-teach-more-than-fighting/ | SimpleSumo Bots Teach More Than Fighting | Kristina Panos | [
"how-to",
"Robots Hacks"
] | [
"3d printed",
"arduino",
"custom",
"educational robot",
"mr. potato head",
"robot",
"sumo",
"sumo bot"
] | [MechEngineerMike] wrote in to share the enthusiasm over
SimpleSumo, a series of open source, customizable robots he designed for mini-sumo battling and much more
. For the unfamiliar, mini-sumo is a sport where two robots try to push each other out of a ring. [Mike]’s bots are simplified versions designed for educatio... | 2 | 2 | [
{
"comment_id": "4170800",
"author": "FW",
"timestamp": "2017-10-28T13:13:11",
"content": "Neat!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4170881",
"author": "RW ver 0.0.1",
"timestamp": "2017-10-28T14:46:53",
"content": "But can they protect... | 1,760,374,617.264337 | ||
https://hackaday.com/2017/10/27/neural-network-really-ties-the-room-together/ | Neural Network Really Ties The Room Together | Tom Nardi | [
"Arduino Hacks",
"LED Hacks"
] | [
"3d printed",
"machine learning",
"python",
"RGB LED",
"scikit-learn"
] | If there’s one thing that Hollywood knows about hackers, it’s that they absolutely love data visualizations. Sometimes it’s projected on a big wall (
Hackers, WarGames)
, other times it’s gibberish until the plot says otherwise (
Sneakers, The Matrix
). But no matter what, it has to look
cool
. No hacker worth his or h... | 21 | 5 | [
{
"comment_id": "4170404",
"author": "Redhatter (VK4MSL)",
"timestamp": "2017-10-28T07:11:17",
"content": "I really wish GIF89a hadn’t seen the light of day… animations amongst text is too distracting to read, so I have animations turned off most of the time as otherwise they just play automatically... | 1,760,374,617.39826 | ||
https://hackaday.com/2017/10/27/wireless-oscilloscope-review/ | Wireless Oscilloscope Review | Al Williams | [
"Tool Hacks"
] | [
"digital Oscilloscope",
"oscilloscope",
"wireless"
] | [Martin Rowe] over at EDN recently put
a $200 wireless oscilloscope
to the test. The Aeroscope 100A is a single channel scope in a probe body that communicates back to an Apple smartphone or tablet via Bluetooth LE. You can see the video from the post, below.
The original prototype of the device had a high bandwidth, b... | 20 | 7 | [
{
"comment_id": "4169999",
"author": "James",
"timestamp": "2017-10-28T02:16:22",
"content": "I wish some industrious chinese developer would take the innards of something fairly cheap and portable like the DSO203 (aka DSO Quad), and stick it in a full size tablet with a better interface.I don’t hav... | 1,760,374,617.790661 | ||
https://hackaday.com/2017/10/27/jeri-ellsworth-tours-a-radio-and-tech-museum/ | Jeri Ellsworth Tours A Radio And Tech Museum | Steven Dufresne | [
"News"
] | [
"castAR",
"jeri ellsworth"
] | [Jeri Ellsworth] has
done some YouTubing again
(yes, that’s a word, just like YouTuber) after a four-year hiatus. She’s recently uploaded a very enjoyable four-part series
touring the Museum of Radio and Technology in Huntington, West Virginia
.
Part one contains radios spanning the ages, starting with a spark gap tran... | 12 | 11 | [
{
"comment_id": "4169914",
"author": "starhawk",
"timestamp": "2017-10-28T00:43:53",
"content": "Just watched all four videos. Amazing stuff!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4169962",
"author": "ameyring",
"timestamp": "2017-10-28T01:40:... | 1,760,374,617.664319 | ||
https://hackaday.com/2017/10/27/youd-print-a-part-but-would-you-print-a-foot/ | You’d Print A Part, But Would You Print A Foot? | James Hobson | [
"3d Printer hacks",
"Medical Hacks"
] | [
"3d printed prosthetic",
"blender",
"cheetah",
"foot",
"prosthetic"
] | Born with just one foot, [Nerraw99] had to work around prosthetics all his life. Finally getting fed up with the various shortcomings of his leather and foam foot, he designed, tweaked, printed and tested
his own replacement
!
After using Structure Sensor to scan both his feet, [Nerraw99] began tooling around with the ... | 22 | 10 | [
{
"comment_id": "4169510",
"author": "Nimitzbrood",
"timestamp": "2017-10-27T20:17:30",
"content": "Having Diabetic Neuropathy, (being at risk of losing a foot), and a 3D printer, this gives me some hope that if it _does_ happen I won’t be forced to pay thousands of dollars in medical bills for some... | 1,760,374,617.732933 | ||
https://hackaday.com/2017/10/27/hackaday-prize-entry-global-positioning-clock/ | Hackaday Prize Entry: Global Positioning Clock | Brian Benchoff | [
"clock hacks",
"The Hackaday Prize"
] | [
"2017 Hackaday Prize",
"clock",
"gps"
] | How do you get the attention of thousands of Hackaday readers? Build a clock! There are just so many choices to agonize over. Do you go with a crystal as a clock source, a fancy oven controlled crystal oscillator, or just mains voltage? Should you even think about putting a GPS module in a clock? All these are very int... | 30 | 6 | [
{
"comment_id": "4169384",
"author": "naikrovek",
"timestamp": "2017-10-27T19:22:32",
"content": "Doesn’t that chipsets do 10Hz updates anyway?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4169496",
"author": "nsayer",
"timestamp": "2017-10... | 1,760,374,617.861495 | ||
https://hackaday.com/2017/10/27/catching-30-kilowatts-with-thors-hammer/ | Catching 30 Kilowatts With Thor’s Hammer | Mike Szczys | [
"Misc Hacks"
] | [
"Hacksmith",
"high voltage",
"Make it Real",
"mjolnir",
"tesla coil",
"Thor's Hammer"
] | Can you really catch lightning with Mjolnir, the mythical hammer of Thor? If you’re [James Hobson] you can get pretty darn close. He’s a long time writer at Hackaday who’s been building an epic following on his YouTube channel by making the digital effects of blockbuster movies into practical effects. Today he released... | 13 | 5 | [
{
"comment_id": "4169243",
"author": "Ostracus",
"timestamp": "2017-10-27T18:14:20",
"content": "Wonder how well it would do with REAL lightning?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4169286",
"author": "RW ver 0.0.1",
"timestamp": ... | 1,760,374,618.20911 | ||
https://hackaday.com/2017/10/27/fail-of-the-week-accidental-demagnetization/ | Fail Of The Week — Accidental Demagnetization | Bob Baddeley | [
"Engineering",
"Fail of the Week"
] | [
"f'n magnets",
"magnet",
"magnetism",
"threaded insert"
] | There’s a trick in the world of plastic enclosures. The threaded insert is a small cylinder of metal with threads on the inside and a rough edge on the outside. To make a plastic part with a hole for securely connecting bolts that can be repeatedly screwed without destroying the plastic, you take the threaded insert an... | 41 | 13 | [
{
"comment_id": "4169149",
"author": "Ren",
"timestamp": "2017-10-27T17:15:25",
"content": "High School shop class told me that heat and vibration are the biggest enemies of magnets.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4169157",
"author": ... | 1,760,374,618.291628 | ||
https://hackaday.com/2017/10/27/what-is-it-r2-have-something-to-share/ | What Is It, R2? Have Something To Share? | James Hobson | [
"Microcontrollers",
"Robots Hacks",
"Wearable Hacks"
] | [
"adafruit",
"audio fx",
"Command",
"EasyVR Shield",
"Fio V3",
"R2-D2",
"r2d2",
"recognition",
"star wars",
"voice",
"xbee"
] | Sometimes great projects keep evolving. [Bithead942] built himself an R2-D2 to accompany him when he goes a-trooping — but something didn’t feel quite right. Turns out, R2 was missing its signature beeping banter, so he made it more contextually responsive by
implementing a few voice commands
.
[Bithead942]’s main cost... | 5 | 3 | [
{
"comment_id": "4169007",
"author": "Jason Belec",
"timestamp": "2017-10-27T15:38:11",
"content": "Sweet. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4169048",
"author": "EGO",
"timestamp": "2017-10-27T15:59:29",
"content": "Nice!",
"par... | 1,760,374,618.330902 | ||
https://hackaday.com/2017/10/27/this-power-strip-is-a-fire-starter/ | This Power Strip Is A Fire Starter | Adam Fabio | [
"Curated",
"Featured",
"Original Art",
"Slider",
"Teardown"
] | [
"amazon",
"Belkin",
"burn",
"fire",
"strip",
"Surge suppressor"
] | A few weeks ago I needed a power strip in my home office. The outlet in question is located behind a filing cabinet so it would need a low profile plug. I jumped on Amazon to buy a surge suppressor strip.
That’s when I noticed strips with rotating plugs
. I’ve always had some apprehensions about plugs like that, though... | 113 | 30 | [
{
"comment_id": "4168855",
"author": "drwho8 (@drwho8)",
"timestamp": "2017-10-27T14:14:09",
"content": "Amazing. And I wonder how many of them are still sold on Amazon? Oh and how’d you write that with all of those tribbles running around eating the munchies and consuming the coffee, and making mor... | 1,760,374,620.545284 | ||
https://hackaday.com/2017/10/27/diy-barometer-its-for-your-health/ | DIY Barometer: It’s For Your Health! | James Hobson | [
"3d Printer hacks"
] | [
"atmosphere",
"barometer",
"jar",
"pressure",
"rubber",
"weather"
] | [T
aciuc Marius
] and his colleague noticed that days with low atmospheric pressure plus caffeine in their system meant a spike in blood pressure. Considering how this might impact his cardiovascular health, he decided to make a
relative pressure barometer out of a jar
to help him decide whether he should really have a... | 13 | 4 | [
{
"comment_id": "4168546",
"author": "Saabman",
"timestamp": "2017-10-27T11:26:08",
"content": "I wonder how you could compensate for temperature variation as well.I remember in some Usborn book from the 80’s had a barometer like that – it wasn’t quiet as fancy. Just a jar with a balloon stretched ... | 1,760,374,620.191461 | ||
https://hackaday.com/2017/11/02/what-is-entropy-and-how-do-i-get-more-of-it/ | What Is Entropy And How Do I Get More Of It? | Elliot Williams | [
"Hackaday Columns",
"Linux Hacks",
"Raspberry Pi",
"Slider"
] | [
"cryptography",
"entropy",
"hardware rng",
"hwrng",
"linux",
"prng",
"radomness",
"random",
"raspberry pi",
"rng",
"rng-tools",
"security"
] | Let’s start off with one of my favorite quotes from
John von Neumann
: “Any one who considers arithmetical methods of producing random digits is, of course, in a state of sin. For, as has been pointed out several times, there is no such thing as a random number — there are only methods to produce random numbers, and a ... | 55 | 18 | [
{
"comment_id": "4178732",
"author": "willbaden",
"timestamp": "2017-11-02T17:20:43",
"content": "Always enjoy your articles Elliot. Keep up the good work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4178734",
"author": "Ostracus",
"timestamp": "20... | 1,760,374,618.907585 | ||
https://hackaday.com/2017/11/02/diy-pyrography-power-supply/ | DIY Pyrography Power Supply | Kristina Panos | [
"ATtiny Hacks"
] | [
"attiny85",
"power supply",
"pwm",
"pyrography",
"wood burning"
] | Ever wanted to try your hand at wood burning? If you already threw away your first soldering iron—you know the one: plugged straight in to the wall, no temperature control, came with a thick piece of tin foil to rest it on—don’t despair. Pyrography pens don’t cost that much. The variable power supply they plug into, th... | 25 | 7 | [
{
"comment_id": "4178668",
"author": "Thinkerer",
"timestamp": "2017-11-02T15:43:20",
"content": "How about a wall-voltage soldering iron plus cheap dimmer control?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4178679",
"author": "RW ver 0.0.1",
... | 1,760,374,620.258246 | ||
https://hackaday.com/2017/11/02/silicon-valley-was-built-on-tubes-of-glass/ | Silicon Valley Was Built On Tubes Of Glass | Charles Alexanian | [
"Featured",
"History",
"Original Art",
"Slider"
] | [
"history",
"silicon valley",
"stanford",
"technology",
"vacuum tubes"
] | Lee de Forest
Bill Shockley brought the transistor to a pasture in Palo Alto, but he didn’t land there by chance. There was already a plot afoot which had nothing to do with silicon, and it had already been a happening place for some time by then.
Often overshadowed by Edison and Menlo Park or Western Electric and its ... | 53 | 20 | [
{
"comment_id": "4178633",
"author": "jacques1956",
"timestamp": "2017-11-02T14:51:05",
"content": "” At that time these companies were aggressively pursuing, mainly through patent litigation,…”Sound like today…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": ... | 1,760,374,620.865088 | ||
https://hackaday.com/2017/11/02/finally-a-big-screen-vectrex/ | Finally – A Big-Screen Vectrex | Lewin Day | [
"classic hacks"
] | [
"console",
"vector",
"vector display",
"vectrex"
] | The Vectrex is in no way the most popular console of all time, but it is one of the more unique. Eschewing typical raster-based rendering, it instead relies on a vector-based display. Since the average home television of the era would be completely unable to display such signals, the Vectrex had its screen built in. Th... | 26 | 6 | [
{
"comment_id": "4178512",
"author": "Redhatter (VK4MSL)",
"timestamp": "2017-11-02T11:53:04",
"content": "Anyone else cringe poking around lethal voltages like that? I was waiting for the ZAP!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4178572",
... | 1,760,374,619.378856 | ||
https://hackaday.com/2017/11/02/pi-handheld-with-a-mindblowing-enclosure/ | Pi Handheld With A Mindblowing Enclosure | Lewin Day | [
"Raspberry Pi"
] | [
"carbon fiber",
"Carbon Fibre",
"emulation",
"emulator",
"enclosure",
"enclosure design",
"game boy",
"raspberry pi",
"wood"
] | The Raspberry Pi is possibly the world’s most popular emulation platform these days. While it was never intended to serve this purpose, the fact remains that a small, compact computer with flexible I/O is ideally suited to it. We’ve featured a multitude of builds over the years using a Pi in a mobile form factor to tak... | 14 | 5 | [
{
"comment_id": "4178490",
"author": "Dave Davidson",
"timestamp": "2017-11-02T11:03:27",
"content": "“Kite’s SUPER All-In-One Board” has taken the hacker out of it, Still nice for arrangement some of the wiring jobs on these get a little to spaghetti for me",
"parent_id": null,
"depth": 1,
... | 1,760,374,619.439797 | ||
https://hackaday.com/2017/11/01/jeri-builds-a-magnetic-loop-antenna/ | [Jeri] Builds A Magnetic Loop Antenna | Dan Maloney | [
"Radio Hacks"
] | [
"amateur",
"antenna",
"dipole",
"DX",
"ham",
"HF",
"jeri ellsworth",
"loop",
"magnetic loop",
"propagation",
"skip"
] | Most new hams quickly learn that the high-frequency bands are where the action is, and getting on the air somewhere between 40- and 160-meters is the way to make those coveted globe-hopping contacts. Trouble is, the easiest antennas to build — horizontal center-fed dipoles — start to claim a lot of real estate at these... | 43 | 22 | [
{
"comment_id": "4178192",
"author": "Warren",
"timestamp": "2017-11-02T05:21:39",
"content": "Thanks [Jeri] — Looking forwards to the next episode!73, Warren, VK7WN",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4178198",
"author": "Chris",
"times... | 1,760,374,620.9429 | ||
https://hackaday.com/2017/11/01/listening-for-hand-gestures/ | Listening For Hand Gestures | Al Williams | [
"Arduino Hacks"
] | [
"arduino",
"gesture",
"python",
"ultrasonic"
] | [B. Aswinth Raj] wanted to control a VLC player with hand gestures. He turned to
two common ultrasonic sensors and Python to do the job
. There is also, of course, an Arduino. You can see a video of the results, below.
The Arduino code reads the distance from both sensors — one for the left hand and the other for the r... | 15 | 7 | [
{
"comment_id": "4178073",
"author": "Ken N",
"timestamp": "2017-11-02T02:12:03",
"content": "very cool.About two years ago, I helped create a proof-of-concept gesture controlled display using an optical distance/gesture sensor. Same general idea, different sensor principle.We used this sensor:https... | 1,760,374,620.389823 | ||
https://hackaday.com/2017/10/27/how-to-bend-pvc-the-nice-way/ | How To Bend PVC The Nice Way | Lewin Day | [
"Misc Hacks"
] | [
"bend",
"bending",
"pipe",
"pipe bending",
"PVC",
"pvc-pipe"
] | PVC pipe is a valuable material to the backyard hacker. It’s cheap, readily available, and comes in a range of different sizes. However, what do you do if you need to bend it? The typical approach would be to grab a heat gun or blowtorch, warm it up, and go from there. These methods can get messy however, with kinks an... | 32 | 17 | [
{
"comment_id": "4168140",
"author": "James Sleeman",
"timestamp": "2017-10-27T08:04:05",
"content": "The lady’s name is Linn, Darbin is her dog as I recall.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4168556",
"author": "Elliot Williams",
... | 1,760,374,621.840458 | ||
https://hackaday.com/2017/10/26/skynet-will-have-bobcats/ | Skynet Will Have Bobcats | Pedro Umbelino | [
"car hacks",
"Robots Hacks"
] | [
"autonomous car",
"bobcat",
"robot",
"tractor"
] | There are so many autonomous devices nowadays that can run Skynet Inside
(TM)
that it’s hard to keep track. But one was still missing: the versatile Bobcat. When we say “Bobcat”, we mean track loader — it’s just one of those things that the name and the brand stoke together so strongly that it’s hard to actually recall... | 40 | 13 | [
{
"comment_id": "4167867",
"author": "RoGeorge",
"timestamp": "2017-10-27T06:09:15",
"content": "The team who made that video did an impressing job. Very well done! Nice Bobcat, too.:o)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4168701",
"author... | 1,760,374,620.337557 | ||
https://hackaday.com/2017/10/26/hollow-state-memory/ | Hollow State Memory | Al Williams | [
"classic hacks"
] | [] | A lot of people like tubes either for their audio sound or their collectible value. [Uniservo] likes oddball tubes. His
recent video
(see below) shows a radechon — a computer memory tube. These were apparently widely used in RADAR sets until recently and has some similarity to a Williams tube.
The tube is essentially a... | 12 | 8 | [
{
"comment_id": "4167266",
"author": "Alex Rossie",
"timestamp": "2017-10-27T02:09:02",
"content": "I’m not sure how it’s possible that I’d never heard of these until I saw it on HaD something so far up my street I can taste it. So to speak. Wonderful video",
"parent_id": null,
"depth": 1,
... | 1,760,374,620.64953 | ||
https://hackaday.com/2017/10/26/thermite-creates-a-sword/ | Thermite Creates A Sword | Brian McEvoy | [
"chemistry hacks",
"Weapons Hacks"
] | [] | Thermite can cut cars in half but [TheBackyardScientist] relies on its ability to create rather than destroy. In fact, thermite was the key component when he
casts a solid metal sword
. The casting doesn’t require a furnace since the heat is produced by the thermite itself.
In case it wasn’t abundantly clear: this proc... | 26 | 9 | [
{
"comment_id": "4167188",
"author": "Olsen",
"timestamp": "2017-10-26T23:22:44",
"content": "WOW! Just WOW!What other (unintended) uses for thermite are there?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4167189",
"author": "Clara",
"time... | 1,760,374,620.605127 | ||
https://hackaday.com/2017/10/26/reconstructing-a-blurry-qr-code/ | Reconstructing A Blurry QR Code | Lewin Day | [
"classic hacks"
] | [
"bitcoin",
"cryptocurrency",
"python",
"qr code"
] | QR Codes are a two-dimensional type of matrix barcode that are used for a variety of uses. They’re one way of turning a long piece of string data into an easily machine-readable format. For this reason, they can be used to store private keys for encryption and crypto-currency purposes. [Roger Ver] attempted to use a QR... | 4 | 4 | [
{
"comment_id": "4167099",
"author": "codeasm",
"timestamp": "2017-10-26T20:40:22",
"content": "Now tv series and movies should take these posts as inspiration and keep it to this. “enhance”, “rotate” and “reflection” haha nice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,374,622.386805 | ||
https://hackaday.com/2017/10/26/hackaday-prize-entry-the-minimalist-z80-computer/ | Hackaday Prize Entry: The Minimalist Z80 Computer | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2017 Hackaday Prize",
"retrocomputer",
"retrocomputing",
"z80"
] | The best projects always seem to come from eBay. A few weeks ago, we found a few tiles meant for gigantic LED panel installations, and fifty bucks got you ten tiles. That eBay auction is now sold out. A while ago, [
Just4Fun
] realized he could build a Z80 microcomputer with $4 worth of parts from everyone’s favorite o... | 22 | 8 | [
{
"comment_id": "4166932",
"author": "Peter Jakobs",
"timestamp": "2017-10-26T18:07:29",
"content": "and of course, the “glue” Atmel is like 20 times more powerful than the Z80, but hey, we don’t have to tell anybody :DCool project!",
"parent_id": null,
"depth": 1,
"replies": []
},
{... | 1,760,374,622.336124 | ||
https://hackaday.com/2017/10/26/the-most-useless-tools-you-cant-seem-to-part-with/ | The Most Useless Tools You Can’t Seem To Part With | John Baichtal | [
"Hackaday Columns",
"Tool Hacks"
] | [
"tools",
"white elephant tools",
"workbench",
"workshop"
] | I’m a tool person. No matter how hard I try, I eventually end up with a bunch of tools that I just can’t bear to banish from my workshop. Why? I’m gonna keep it 100%: it’s the same emotion behind hoarding — fearing that you might need a thing later and not be able to have it.
The stuff costs money, and if you have to s... | 180 | 50 | [
{
"comment_id": "4166870",
"author": "Internet",
"timestamp": "2017-10-26T17:11:05",
"content": "As a tangentially related aside, it’s also relevant that designs carry with them some of the ways things used to be done despite the actual function or utility being largely useless. Also, what is the al... | 1,760,374,622.789969 | ||
https://hackaday.com/2017/10/26/raspberry-pi-media-streamer-is-combat-ready/ | Raspberry Pi Media Streamer Is Combat Ready | Tom Nardi | [
"digital audio hacks",
"Raspberry Pi"
] | [
"HiFiBerry",
"Kodi",
"Max2Play",
"raspberry pi",
"Squeezebox"
] | We are truly living in the golden age of media streaming. From the Roku to the Chromecast, there is no shortage of cheap devices to fling your audio and video anywhere you please. Some services and devices may try to get you locked in a bit more than we’d like (Amazon, we’re looking at you), but on the whole if you’ve ... | 21 | 10 | [
{
"comment_id": "4166843",
"author": "RW ver 0.0.1",
"timestamp": "2017-10-26T16:08:20",
"content": "Tacticool….but what happens if I poke the speaker cones with a not even very sharp stick? … ah I see, you send the predator out on a enemy combatant blunt stick denial mission first.",
"parent_id... | 1,760,374,622.450749 | ||
https://hackaday.com/2017/10/26/interactive-visual-programming-with-vvvv/ | Interactive Visual Programming With Vvvv | Christian Trapp | [
"Featured",
"Video Hacks"
] | [
"art",
"directX",
"gpu",
"graphical programming",
"visual programming"
] | Did you ever feel the urge to turn the power of
image processing and OCR
into music? Maybe you wanted to use motion capture to illustrate the
dynamic movement
of a kung-fu master in stunning images like the one above? Both projects were created with the same software.
vvvv
-pronounced ‘four vee’, ‘vee four’ and someti... | 11 | 8 | [
{
"comment_id": "4166777",
"author": "Ostracus",
"timestamp": "2017-10-26T14:38:13",
"content": "“Boygrouping”, “Girlpower”? Subliminal social messaging maybe?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4168369",
"author": "Elliot Williams",
... | 1,760,374,623.119944 | ||
https://hackaday.com/2017/10/26/restoring-a-tonka-truck-with-science/ | Restoring A Tonka Truck With Science | Tom Nardi | [
"chemistry hacks",
"classic hacks",
"Toy Hacks"
] | [
"electrolytic rust removal",
"restoration",
"Tonka",
"toy"
] | The yellow Tonka Truck. Instantly recognizable by any child of decades past, that big metal beast would always make you popular around the sandbox. There were no blinking lights to dazzle, no noises to be heard (unless you count the hard plastic wheels rolling on concrete), even the dumping action is completely manual.... | 36 | 13 | [
{
"comment_id": "4166549",
"author": "Galane",
"timestamp": "2017-10-26T11:11:33",
"content": "Makes me wish I had my old Tonkas from the 70’s, in the near pristine condition they were in – so I could sell them for big $. :)",
"parent_id": null,
"depth": 1,
"replies": [
{
"... | 1,760,374,622.552111 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.