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|---|---|---|---|---|---|---|---|---|---|---|---|
https://hackaday.com/2018/05/29/monitoring-air-quality-one-sleepy-meeting-at-a-time/ | Monitoring Air Quality, One Sleepy Meeting At A Time | Dan Maloney | [
"Misc Hacks"
] | [
"air quality",
"atmega328",
"bme280",
"carbon dioxide",
"CCS811",
"co2",
"sensor",
"VOC",
"volatile organic compounds"
] | To those of us in the corporate world, the conference room is where hope goes to die. Crammed into a space too small for the number of invitees, the room soon glows with radiated body heat and the aromas of humans as the time from their last shower gradually increases. To say it’s not a recipe for productivity is an un... | 10 | 5 | [
{
"comment_id": "4592378",
"author": "Ostracus",
"timestamp": "2018-05-29T23:02:51",
"content": "“Having suffered through too many of these soporific situations, [Charles Ouweland] took matters into his own hands and built this portable air quality meter for meetings. ”Call the EPA. Have your meetin... | 1,760,374,350.343351 | ||
https://hackaday.com/2018/05/29/put-the-3d-printer-to-sleep-so-you-can-rest-easy/ | Put The 3D Printer To Sleep So You Can Rest Easy | Tom Nardi | [
"3d Printer hacks",
"Microcontrollers"
] | [
"3D printer fire",
"automatic",
"endstop",
"pic",
"TRIAC"
] | At this point you’ve probably already heard the news: cheap Chinese 3D printers sometimes catch fire. Now we can’t say we’re shocked to find out that absolute bottom of the barrel gear wasn’t designed to the highest standards (gotta cut those corners someplace), but that doesn’t change the fact that there are thousands... | 34 | 17 | [
{
"comment_id": "4591883",
"author": "scott t",
"timestamp": "2018-05-29T20:02:29",
"content": "but then he needs to build another one to shut the first one down and so on",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4591923",
"author": "Adam Martin",
... | 1,760,374,350.578976 | ||
https://hackaday.com/2018/05/29/tiny-25-spectrometer-aims-to-identify-materials-with-ease/ | Tiny $25 Spectrometer Aims To Identify Materials With Ease | Donald Papp | [
"LED Hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"AMS",
"led",
"pcb",
"reflectance",
"sensor",
"spectrometer"
] | Reflectance spectrometers work on a simple principle: different things reflect different wavelengths in different amounts, and because similar materials do this similarly, the measurements can be used as a kind of fingerprint or signature. By measuring how much of which wavelengths get absorbed or reflected by a thing ... | 59 | 16 | [
{
"comment_id": "4591713",
"author": "Sir Spectre Alot",
"timestamp": "2018-05-29T19:03:01",
"content": "Could it be used with argyllcms to calibrate monitors and profile printers?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4591714",
"author": "Ostracu... | 1,760,374,350.769159 | ||
https://hackaday.com/2018/05/29/spanning-the-tree-dr-radia-perlman-untangling-networks/ | Spanning The Tree : Dr Radia Perlman & Untangling Networks | Richard Baguley | [
"Biography",
"Featured",
"Original Art",
"Slider"
] | [
"biography",
"geek poetry",
"graph",
"internet",
"protocol",
"radia perlman",
"spanning tree"
] | As computer networks get bigger, it becomes increasingly hard to keep track of the flow of data over this network. How do you route data, making sure that the data is spread to all parts of the network? You use an algorithm called the spanning tree protocol — just one of the contributions to computer science of a remar... | 33 | 14 | [
{
"comment_id": "4591406",
"author": "Pedantic",
"timestamp": "2018-05-29T17:25:02",
"content": "“…the switch (a router that includes the ability to switch data between multiple ports) …”In studying for my network+ and CCNA, it seems like switches are described as moving frames between hosts on a ne... | 1,760,374,350.419639 | ||
https://hackaday.com/2018/06/01/an-electromagnet-brings-harmony-to-this-waving-cat/ | An Electromagnet Brings Harmony To This Waving Cat | Kerry Scharfglass | [
"hardware",
"Misc Hacks",
"Teardown"
] | [
"cheap",
"electromagnet",
"lucky cat",
"teardown"
] | We’ve noticed waving cats in restaurants and stores for years, but even the happy bobbing of their arm didn’t really catch our attention. Maybe [Josh] had seen a couple more than we have when it occurred to him to
take one apart
to see how they work. They are designed to run indoors from unreliable light sources and se... | 9 | 5 | [
{
"comment_id": "4601898",
"author": "NiHaoMike",
"timestamp": "2018-06-01T23:50:50",
"content": "I once took apart one of those decorative pendulum widgets and they somehow managed to implement the motor with a single transistor and a tapped coil. It doesn’t start by itself, however.",
"parent_... | 1,760,374,350.299811 | ||
https://hackaday.com/2018/06/01/trashed-vector-game-console-revived-with-vintage-ibm-monitor/ | Trashed Vector Game Console Revived With Vintage IBM Monitor | Dan Maloney | [
"Video Hacks"
] | [
"arcade",
"console",
"crt",
"flyback",
"game",
"ibm",
"monitor",
"phosphor",
"vector",
"vectrex"
] | We’ve all had the heartbreak of ordering something online, only to have it arrive in less than mint condition. Such are the risks of plying the global marketplace, only more so for used gear, which seems to be a special target for the wrath of sadistic custom agents and package handlers all along the supply chain.
This... | 9 | 5 | [
{
"comment_id": "4601947",
"author": "zaprodk",
"timestamp": "2018-06-02T00:11:52",
"content": "Wow. That high-persistence phosphor makes it look amazing",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4602283",
"author": "Under Sampled",
"timestamp": "... | 1,760,374,350.501448 | ||
https://hackaday.com/2018/06/01/this-is-your-last-chance-to-design-the-greatest-robotics-modules/ | This Is Your Last Chance To Design The Greatest Robotics Modules | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"Robotics Module Challenge"
] | It’s Friday, and that means this is your last weekend to get your project together for the
Robotics Module Challenge
in this year’s Hackaday Prize. We’re looking for tools for robots that blow the doors off what is commercially available. If you have a project in mind that adds sensors or capabilities to our fine elect... | 2 | 2 | [
{
"comment_id": "4601908",
"author": "deverett01",
"timestamp": "2018-06-01T23:54:42",
"content": "I could not find a section for the Robotics Module Challenge. Was it cancelled?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4602761",
"author": "torcue",
... | 1,760,374,350.459116 | ||
https://hackaday.com/2018/06/01/raspberry-pis-power-over-ethernet-hardware-sparks-false-spying-hubub/ | Raspberry Pi’s Power Over Ethernet Hardware Sparks False Spying Hubbub | Jenny List | [
"Engineering",
"Featured",
"Parts",
"Raspberry Pi"
] | [
"ethernet",
"ethernet transformer",
"raspberry pi",
"Raspberry Pi 3 B+"
] | Have you ever torn open an Ethernet jack? We’d bet the vast majority of readers — even the ones elbow-deep into the hardware world — will answer no. So we applaud the effort in this one, but
the conclusion landed way off the mark
.
In the last few days, a Tweet showing a Raspberry Pi with its Ethernet socket broken ope... | 86 | 27 | [
{
"comment_id": "4600955",
"author": "Jay",
"timestamp": "2018-06-01T17:14:46",
"content": "> ignore the low frequency 48 VAC of the PoEPoE is DC, matching all of the 48VDC telecom equipment floating around.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "460... | 1,760,374,350.961662 | ||
https://hackaday.com/2018/06/01/a-wild-hackaday-belgrade-confirms-status-as-one-of-worlds-greatest-hardware-cons/ | A Wild Hackaday Belgrade Confirms Status As One Of World’s Greatest Hardware Cons | Mike Szczys | [
"cons",
"Hackaday Columns",
"Slider"
] | [
"badgelife",
"Hackaday Belgrade",
"Hackaday Belgrade 2018",
"Hacker Village"
] | Hackers, Designers, and Engineers flooded into Dom Omladine on Saturday for what can only be described as an epic celebration of hardware culture. This is the second time Hackaday has organized a huge conference in Belgrade, and lightning really did strike twice.
A Gathering of New Friends and Old
We got things started... | 15 | 9 | [
{
"comment_id": "4600796",
"author": "Deian",
"timestamp": "2018-06-01T15:53:53",
"content": "Thanks for organizing the second conference of this non-recurring event in Belgrade, it was as great as the first one. And the badge was so fun, I kinda missed the first two talks by paying more attention t... | 1,760,374,351.033763 | ||
https://hackaday.com/2018/06/01/linux-fu-counter-rotate-keys/ | Linux Fu: Counter Rotate Keys! | Al Williams | [
"Hackaday Columns",
"Linux Hacks"
] | [
"Linux Fu",
"pair",
"security",
"sudo"
] | If you’ve done anything with a modern Linux system — including most variants for the Raspberry Pi — you probably know about sudo. This typically allows an authorized user to elevate themselves to superuser status to do things.
However, there is a problem. If you have sudo access, you can do anything — at least, anythin... | 22 | 10 | [
{
"comment_id": "4600670",
"author": "p",
"timestamp": "2018-06-01T14:20:01",
"content": "A tool I would have really loved 25 years ago when I was teaching *nix administration. It would have saved me much time in rebuilding/reconfiguring systems.Today, not so much need for me since most all systems ... | 1,760,374,350.829405 | ||
https://hackaday.com/2018/06/01/dead-simple-ultrasonic-data-communication/ | Dead Simple Ultrasonic Data Communication | Tom Nardi | [
"Arduino Hacks",
"Wireless Hacks"
] | [
"arduino",
"HC-SR04",
"lm386",
"lm393",
"ultrasonic"
] | Some of the best hacks are the ones which seem perfectly obvious in hindsight; a solution to the problem that’s so elegant, you wonder how it never occurred to you before. Of course we also love the hacks that are so complex your eyes start to water, but it’s nice to have a balance. This one, sent in by [Eduardo Zola] ... | 17 | 11 | [
{
"comment_id": "4600512",
"author": "Clovis Fritzen",
"timestamp": "2018-06-01T12:30:27",
"content": "Cool!. Goes for a good science fair project, as well as eliminating wires on simple unidirectional comms. Thanks for the tip",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,351.267595 | ||
https://hackaday.com/2018/05/28/strike-a-chord-with-this-led-ukulele/ | Strike A Chord With This LED Ukulele | Sven Gregori | [
"Musical Hacks"
] | [
"arduino",
"educational",
"four chords",
"leds",
"musical instrument",
"ukulele"
] | You may laugh off the ukulele as a toy or joke instrument, and admittedly, their starting price tag and the quality that usually comes with such a price tag doesn’t help much to get a different opinion on that. But it also makes it the perfect instrument for your next project. After all, they’re easy to handle, portabl... | 10 | 7 | [
{
"comment_id": "4587120",
"author": "Ostracus",
"timestamp": "2018-05-28T20:08:11",
"content": "“You may laugh off the ukulele as a toy or joke instrument, and admittedly, their starting price tag and the quality that usually comes with such a price tag doesn’t help much to get a different opinion ... | 1,760,374,351.208086 | ||
https://hackaday.com/2018/05/28/talking-to-laptop-batteries-with-the-esp8266/ | Talking To Laptop Batteries With The ESP8266 | Tom Nardi | [
"laptops hacks",
"Microcontrollers"
] | [
"battery power",
"ESP8266",
"mqtt",
"SBS",
"SMBus"
] | It’s not something you often give a lot of thought to, but the modern consumer laptop battery is a pretty advanced piece of technology. Not only does it pack several dozen watt-hours of energy into a relatively small and lightweight package, but it features integrated diagnostic capability to make sure all those temper... | 21 | 5 | [
{
"comment_id": "4586309",
"author": "Mike Massen",
"timestamp": "2018-05-28T15:24:52",
"content": "Interesting post, would be interesting to compile a data-basewith cross-references of the most common battery packs anddata so coming with PPP Power Plug & Pray would be viablefor all sorts of interch... | 1,760,374,351.334774 | ||
https://hackaday.com/2018/05/28/stretching-my-skills-how-and-why-i-made-my-own-compression-sleeves/ | Stretching My Skills: How (and Why) I Made My Own Compression Sleeves | Kristina Panos | [
"Featured",
"Lifehacks",
"Slider",
"Wearable Hacks"
] | [
"compression",
"compression sleeve",
"cubital tunnel syndrome",
"elastic",
"elbow",
"sewing",
"spandex",
"stretchable fabric"
] | Have you ever noticed how “one size fits all” often means “one size poorly fits all”? This became especially clear to me when I started using a compression sleeve on my arm. Like any hacker, this seemed like something I could fix, so I gave it a shot. Boy, did I learn a lot in the process.
A little over a year ago, I s... | 71 | 27 | [
{
"comment_id": "4586135",
"author": "Jenny List",
"timestamp": "2018-05-28T14:22:03",
"content": "Excellent! I can’t help a sneaking liking for that garish leopard print. :)And yes, stretchy fabric is annoying stuff to work with, isn’t it.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,351.444267 | ||
https://hackaday.com/2018/05/28/muscle-your-way-into-music/ | Muscle Your Way Into Music | Al Williams | [
"Arduino Hacks",
"Medical Hacks"
] | [
"emg",
"muscle",
"music",
"MyoWare"
] | Inspired by an old Old Spice commercial, [Juliodb96] decided he too wanted to make music by flexing his muscles. An
Arduino and a MyoWare sensor did the trick
. However, he also tells you how to make your own sensors, if you are so inclined. You can see the instrument in action in the video below.
If you use the ready-... | 6 | 5 | [
{
"comment_id": "4585929",
"author": "TheRainHarvester on YouTube",
"timestamp": "2018-05-28T13:35:12",
"content": "Weeeooooweeeoooo. Reminds me of those forest mims light sensor circuits. I want to see more of these sensors being used. Cool!",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,374,351.48654 | ||
https://hackaday.com/2018/05/28/the-robots-were-coming-the-robots-were-coming/ | The Robots Were Coming! The Robots Were Coming! | Al Williams | [
"Retrocomputing"
] | [
"antique robot",
"gemini",
"hero",
"home robot",
"old robot",
"rb5x",
"robot"
] | The recent influx of home assistants proves that everything old is new again. If we told you about a life-sized robot that was self-charging, had a map of your home for navigation, and responded to voice commands, you’d assume we were going to point you to a Kickstarter or a new product release. Instead, we will point ... | 43 | 11 | [
{
"comment_id": "4585153",
"author": "Dan",
"timestamp": "2018-05-28T09:47:16",
"content": "Along with flying cars, I’ve been promised home robot helpers for as long as I can remember. But in both cases, it’s still not clear how I could practically use such a device in a day to day setting.For me pe... | 1,760,374,351.942497 | ||
https://hackaday.com/2018/05/27/rolling-old-school-with-copy-protection-from-the-1980s/ | Rolling Old School With Copy Protection From The 1980s | Dan Maloney | [
"classic hacks"
] | [
"agc",
"analog",
"blanking",
"copy protection",
"DCMA",
"drm",
"Macrovision",
"TiVo",
"video",
"videotape"
] | Oh, for the old days when sailing the seas of piracy was as simple as hooking a couple of VCRs together with a dubbing cable. Sure, the video quality degraded with each generation, but it was so bad to start out with that not paying $25 for a copy of “Ghostbusters” was a value proposition. But then came The Man with al... | 48 | 16 | [
{
"comment_id": "4584489",
"author": "RandyKC",
"timestamp": "2018-05-28T05:12:47",
"content": "I knew there was a reason I didn’t like TiVo.Frequently Macrovision tapes that were legal wouldn’t play after they had been played a few times. I blame Macrovision for my losing my legal copy of “Big Trou... | 1,760,374,351.682571 | ||
https://hackaday.com/2018/05/27/magic-mirror-tirelessly-indulges-childrens-curiousity/ | Magic Mirror Tirelessly Indulges Children’s Curiousity | Donald Papp | [
"Raspberry Pi"
] | [
"gesture sensor",
"interactive",
"lcd",
"Magic Mirror",
"mirror",
"nuance",
"one-way mirror",
"Papas Inventeurs",
"raspberry pi",
"smart mirror",
"speech to text",
"text to speech"
] | [pepelepoisson]’s
Miroir Magique
(“Magic Mirror”) is an interesting take on the smart mirror concept; it’s intended to be a playful, interactive learning tool for kids who are at an age where language and interactivity are deeply interesting to them, but whose ceaseless demands for examples of spelling and writing can ... | 6 | 6 | [
{
"comment_id": "4584682",
"author": "Nitpicker Smartyass",
"timestamp": "2018-05-28T06:44:13",
"content": "Nice build!As a kid I would have gotten bored after a few trials due to the delay. A “magic” mirror that needs several seconds to repeat a simple sentence would have sounded like a grown-up-to... | 1,760,374,351.599285 | ||
https://hackaday.com/2018/05/29/badge-bling-and-more-at-layerone-2018/ | Badge Bling And More At LayerOne 2018 | Roger Cheng | [
"cons",
"Hackaday Columns"
] | [
"badge hacking",
"conference",
"conference badge",
"conference badges",
"electronic conference badge",
"hebocon",
"layerone",
"lockpicking",
"tamper evident",
"tindie blinky badge"
] | The security conference
LayerOne 2018
took place this past weekend in Pasadena, California. A schedule conflict meant most of our crew was at
Hackaday Belgrade
but I went to LayerOne to check it out as a first-time attendee. It was a weekend full of deciphering an enigmatic badge, hands-on learning about physical secur... | 4 | 4 | [
{
"comment_id": "4591217",
"author": "Ren",
"timestamp": "2018-05-29T15:48:27",
"content": "Nice! Wish I could have attended.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4591300",
"author": "JonB",
"timestamp": "2018-05-29T16:27:51",
"content":... | 1,760,374,351.534931 | ||
https://hackaday.com/2018/05/29/smart-plugs-dont-save-you-energy-but-dont-consume-much-either/ | Smart Plugs Don’t Save You Energy, But Don’t Consume Much Either | Bob Baddeley | [
"Featured",
"green hacks",
"home hacks",
"Interest",
"Slider"
] | [
"iot power strip",
"outlet",
"power outlet",
"power strip",
"smart home",
"switched outlet",
"wall outlet",
"wireless outlet"
] | Amazon Alexa, Google Home, and just about every electronic device manufacturer are jumping on the bandwagon of connected devices. They promise us the ability to turn on our toaster from another room, unlock our doors just by shouting at them from outside, and change the channel on our TV through perfectly enunciating a... | 60 | 17 | [
{
"comment_id": "4590914",
"author": "Bill Sussman",
"timestamp": "2018-05-29T14:07:51",
"content": "Don’t forget to factor in the energy required to power & cool the many datacenters used",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4591001",
"aut... | 1,760,374,351.863133 | ||
https://hackaday.com/2018/05/29/hacking-a-fitness-tracker/ | Hacking A Fitness Tracker | Al Williams | [
"Microcontrollers",
"Slider"
] | [
"fitness band",
"fitness tracker",
"nordic",
"nrf5"
] | When [rbaron] started a new job, he got a goodie bag. The contents included a cheap fitness tracker bracelet that used Bluetooth LE. Since this is Hackaday, you can probably guess what happened next:
hacking ensued
.
For something cheap enough to give away, [rbaron] claims it cost $10, the device has quite a bit in it.... | 20 | 10 | [
{
"comment_id": "4590546",
"author": "yetihehe",
"timestamp": "2018-05-29T12:12:10",
"content": "SWD ports are almost always left in cheap devices because removing them requires changes to design and typically once those devices are good enough, they are pushed out to clients. Then after some client... | 1,760,374,351.994687 | ||
https://hackaday.com/2018/05/29/this-mostly-3d-printed-discone-antenna-is-ready-for-broadband-duty/ | This Mostly 3D-Printed Discone Antenna Is Ready For Broadband Duty | Dan Maloney | [
"Radio Hacks"
] | [
"antenna",
"broadband",
"dipole",
"discone",
"public service",
"receiver",
"scanner",
"yagi"
] | For hams and other radio enthusiasts, the best part of the hobby is often designing antennas. Part black magic, part hard science, and part engineering, antenna design is an art. And while the expression of that art often ends up boiling down to pieces of wire cut to the correct length, some antennas have a little more... | 16 | 7 | [
{
"comment_id": "4589936",
"author": "Cyk",
"timestamp": "2018-05-29T09:02:02",
"content": "I have mixed feelings about discone antennas. I’ve read a lot of comments about them, stating that they’re not better than a random length of wire.Does anybody have positive experiences?",
"parent_id": nu... | 1,760,374,352.049142 | ||
https://hackaday.com/2018/05/28/boozer-tells-the-internet-how-much-you-drink-if-you-want-it-to/ | Boozer Tells The Internet How Much You Drink (If You Want It To) | Rich Hawkes | [
"Beer Hacks"
] | [
"beer",
"keezer",
"kegerator",
"liquid flow sensor",
"mqtt",
"raspberry pi",
"slack",
"twitter"
] | Over the past few years, Reddit user [callingyougoulet] has
created Boozer
, a DIY beer dispenser that keeps track of how much of your brew you have left in your kegs. Installed in a Keezer (a freezer that contains beer kegs and faucets) [callingyougoulet]’s dispenser uses a Raspberry Pi to keep track of things. A seri... | 6 | 6 | [
{
"comment_id": "4590186",
"author": "Jii",
"timestamp": "2018-05-29T10:13:08",
"content": "“Happy little, happy little, happy little boozer”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4591140",
"author": "Ren",
"timestamp": "2018-05-29T15:20:26",
... | 1,760,374,352.095477 | ||
https://hackaday.com/2018/05/28/ham-radio-on-100-or-less/ | Ham Radio On $100 Or Less | Al Williams | [
"Radio Hacks"
] | [
"ham radio",
"qcx",
"SOTA"
] | There are a lot of reasons to get a ham radio license, and if you are one of those that think ham radio is dead you can probably skip this post. However, if you have been interested, but didn’t want to drop a lot of money on a station, [KE6MT] has got some
great advice
for you. He says you can have a rewarding time in ... | 63 | 21 | [
{
"comment_id": "4588388",
"author": "Lee Hart N8DUA",
"timestamp": "2018-05-29T02:27:20",
"content": "Of course, you don’t have to buy everything new. There is a TON of used ham gear available at very reasonable prices. Just go to any hamfest (a flea market for amateur radio operators) and you’ll h... | 1,760,374,352.202809 | ||
https://hackaday.com/2018/05/28/greatscott-tests-his-diy-battery-pack-on-his-e-bike/ | [GreatScott] Tests His DIY Battery Pack On His E-Bike | Steven Dufresne | [
"Transportation Hacks"
] | [
"e-bike",
"ebike",
"electric bike",
"Li-ion",
"lithium ion"
] | [GreatScott]
has now joined the ranks of Electric Bike users
. Or has he? We previously covered how
he made his own lithium-ion battery pack
to see if doing so would be cheaper than buying a commercially made one. But while it powered his E-bike conversion kit on his benchtop, turning the motor while the wheel was moun... | 19 | 13 | [
{
"comment_id": "4588287",
"author": "Scott",
"timestamp": "2018-05-29T01:51:22",
"content": "This is cool. I think I’ve found a project for this weekend.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4588485",
"author": "stevelabours428",
"timestamp"... | 1,760,374,352.254678 | ||
https://hackaday.com/2018/05/30/convert-a-curbside-crt-tv-into-an-arcade-monitor/ | Convert A Curbside CRT TV Into An Arcade Monitor | Tom Nardi | [
"classic hacks",
"Games"
] | [
"arcade",
"composite video",
"crt",
"monitor",
"rgb"
] | While an old CRT TV may work well enough on a MAME cabinet project, the real arcade purists are quick to point out that a proper arcade monitor and a TV aren’t the same thing. A real arcade board uses RGB to connect to the monitor, that is, direct control over the red, green, and blue signals. Conversely video over coa... | 29 | 10 | [
{
"comment_id": "4595755",
"author": "Dumber, smaller, Groot (@CodeReclaimers)",
"timestamp": "2018-05-30T20:05:23",
"content": "I was expecting a Kerbal reference somewhere…. ;)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4595823",
"author": "Ren... | 1,760,374,352.38873 | ||
https://hackaday.com/2018/05/30/supercapacitors-in-a-servo-the-forever-flashlight/ | Supercapacitors In A Servo: The “Forever” Flashlight | Ben James | [
"LED Hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"boost converter",
"flashlight",
"generator",
"led",
"servo",
"supercapacitor"
] | The principle is well understood: use a motor in reverse and you get a generator. Using this bit of knowledge back in 2001 is what kick-started [Ted Yapo]’s Hackaday Prize entry. At the time, [Ted] was searching for a small flashlight for astronomy, but didn’t like dealing with dead batteries. He quickly cobbled togeth... | 21 | 8 | [
{
"comment_id": "4595633",
"author": "Carl",
"timestamp": "2018-05-30T19:00:07",
"content": "If you power that LED with a couple alkaline cells, it will run for years of occasional use, if you turn it off when you’re done. I gather the problem was leaving it turned on in a toolbox.A battery-powered ... | 1,760,374,352.320154 | ||
https://hackaday.com/2018/05/30/vcf-east-2018-the-mail-order-app-store/ | VCF East 2018: The Mail Order App Store | Tom Nardi | [
"classic hacks",
"cons",
"Hackaday Columns",
"Retrocomputing",
"Slider",
"Software Hacks"
] | [
"app store",
"atari",
"distribution",
"VCF",
"VCF East",
"VCF East XIII"
] | Today we take the concept of a centralized software repository for granted. Whether it’s
apt
or the App Store, pretty much every device we use today has a way to pull applications in without the user manually having to search for them on the wilds of the Internet. Not only is this more convenient for the end user, but ... | 16 | 8 | [
{
"comment_id": "4595431",
"author": "Ostracus",
"timestamp": "2018-05-30T17:07:45",
"content": "“Some of the manuals had all the frivolity of a high school book report; something which was immediately noticeable at VCF East, where there was no shortage of contemporary software to compare against.”E... | 1,760,374,352.447855 | ||
https://hackaday.com/2018/05/30/friday-hack-chat-logic-noise/ | Friday Hack Chat: Logic Noise | Elliot Williams | [
"Hackaday Columns"
] | [
"4000 series logic",
"cmos",
"Friday Hack Chat",
"Hack Chat",
"logic noise"
] | If you like your synthesizers glitchy, squawky, or simply quick-and-dirty, you won’t want to miss
this week’s Hack Chat
with Hackaday’s own [Elliot Williams], because he’ll be brain-dumping everything he knows about making music with 4000-series CMOS logic chips. Break out your breadboards!
Coaxing sound out of chips i... | 2 | 2 | [
{
"comment_id": "4595637",
"author": "MK 2",
"timestamp": "2018-05-30T19:01:58",
"content": "Lovely stuff!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6179911",
"author": "Doc Oct",
"timestamp": "2019-09-16T18:55:33",
"content": "What ever happe... | 1,760,374,352.488717 | ||
https://hackaday.com/2018/05/30/laser-powered-flying-machine-weighs-milligrams/ | Laser-Powered Flying Machine Weighs Milligrams | Jenny List | [
"drone hacks"
] | [
"aircraft",
"flying machine",
"lightest aircraft",
"ornithopter"
] | We’ve become used to seeing some beautiful hand-made creations at the smaller end of the flying machine scale, tiny aircraft both fixed and rotary wing. An aircraft that weighs a few grams is entirely possible to build, such have been the incredible advances in component availability.
But how much smaller can a working... | 21 | 5 | [
{
"comment_id": "4595095",
"author": "deshipu",
"timestamp": "2018-05-30T15:02:13",
"content": "The lightest flying machines are balloons. They literally weight less than nothing.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4595103",
"author": "Da... | 1,760,374,352.827673 | ||
https://hackaday.com/2018/05/30/360-live-vr-teleportation-using-drones-neural-networks-and-perseverance/ | 360 Live VR Teleportation Uses Drones, Neural Networks, And Perseverance | Lauren Faris | [
"Featured",
"Interest",
"Science",
"Virtual Reality"
] | [
"360 video",
"cnn",
"deep learning",
"drones",
"hidden markov models",
"neural network",
"video streaming"
] | This past semester I added research to my already full schedule of math and engineering classes, as any masochistic student eagerly would. Packed schedule aside, how do you pass up the chance to work on implementing 360° virtual teleportation to anywhere in the world, in real-time. Yes, it is indeed the same concept as... | 6 | 5 | [
{
"comment_id": "4595029",
"author": "Ren",
"timestamp": "2018-05-30T14:18:57",
"content": "Are you new here Lauren?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4595030",
"author": "Ren",
"timestamp": "2018-05-30T14:19:56",
"conten... | 1,760,374,352.623017 | ||
https://hackaday.com/2018/05/30/cheap-stuff-to-hack-a-router-with-an-sdr-for-13/ | Cheap Stuff To Hack: A Router With An SDR For $13 | Brian Benchoff | [
"Misc Hacks"
] | [
"router",
"RTL-SDR"
] | The history of consumer electronics is littered with devices that are relatively uninteresting at first, but become spectacular platforms for hardware exploitation once a few select people figure out how everything ticks. The Linksys WRT54G was just a router until someone figured out how to put a complete Linux system ... | 41 | 14 | [
{
"comment_id": "4594678",
"author": "Night",
"timestamp": "2018-05-30T11:50:56",
"content": "Just installed PiAware system for ADS-B, but this thing would reduce the cost significantly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4594726",
"author": "T... | 1,760,374,352.696811 | ||
https://hackaday.com/2018/05/26/diy-submersible-aims-for-low-cost-ease-of-operation/ | DIY Submersible Aims For Low Cost, Ease Of Operation | Dan Maloney | [
"Robots Hacks"
] | [
"bilge pump",
"rov",
"submersible",
"Tether",
"thruster",
"underwater"
] | If you’re like us, a body of water is a source of wonder and awe. The wonder comes from imagining what lies hidden below the surface, and the awe is from the fear of trying to find out and becoming one of those submerged objects on a permanent basis. So if you want to explore the depths in relative comfort and safety,
... | 4 | 2 | [
{
"comment_id": "4581938",
"author": "Ostracus",
"timestamp": "2018-05-27T03:08:22",
"content": "“If you’re like us, a body of water is a source of wonder and awe.”https://i.pinimg.com/564x/55/4d/f5/554df5b5cb7ce60d96cf8902ffaae08f.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
... | 1,760,374,352.928774 | ||
https://hackaday.com/2018/05/26/a-oscilloscope-for-the-nuclear-age/ | An Oscilloscope For The Nuclear Age | Jenny List | [
"Tool Hacks"
] | [
"oscilloscope",
"scope",
"Tek",
"tektronix",
"tektronix 519"
] | Here at Hackaday, we’re suckers for vintage instruments. More than one of our staffers has a bench adorned with devices spanning many decades, and there’s nothing more we like reading about that excursions into the more interesting or unusual examples. So when a Tweet comes our way talking about a very special oscillos... | 30 | 8 | [
{
"comment_id": "4581579",
"author": "foxpup",
"timestamp": "2018-05-26T23:20:11",
"content": "There are grammar teachers doing 10000 RPM in their graves because of titles like this. Try “An Oscilloscope For The Nuclear Age”",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,352.993645 | ||
https://hackaday.com/2018/05/26/disaster-area-communications-with-cloud-gateways/ | Disaster Area Communications With Cloud Gateways | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"disaster",
"iridium"
] | 2017, in case you don’t remember, was a terrible year for the Caribbean and Gulf coast. Hurricane Maria tore Puerto Rico apart, Harvey flooded Houston, Irma destroyed the Florida Keys, and we still haven’t heard anything from Saint Martin. There is, obviously, a problem to be solved here, and that problem is communicat... | 24 | 14 | [
{
"comment_id": "4581438",
"author": "Truth",
"timestamp": "2018-05-26T21:38:42",
"content": "Solar panels + Hurricane/Cyclone/Typhoon = light flying stuff that kills.A safer solution would be an underground diesel generator and fuel tank(s). Although with long term storage microbial growth in the d... | 1,760,374,352.885163 | ||
https://hackaday.com/2018/05/26/a-custom-keypad-with-vision/ | A Custom Keypad With Vision | Tom Nardi | [
"computer hacks",
"Microcontrollers",
"Peripherals Hacks"
] | [
"3d printed",
"cherry mx",
"keypad",
"ST7735",
"stm32"
] | A combination of cheap USB HID capable microcontrollers, the ability to buy individual mechanical keys online, and 3D printing has opened up a whole new world of purpose-built input devices. Occasionally these take the form of full keyboards, but more often than not they are small boards with six or so keys that are de... | 7 | 2 | [
{
"comment_id": "4581176",
"author": "mdshaub",
"timestamp": "2018-05-26T18:50:40",
"content": "This is awesome! Is there an app or service running on the computer reporting to this what program is in the foreground? That would be great to shift the keys to ones customized to each application. Maybe... | 1,760,374,353.041109 | ||
https://hackaday.com/2018/05/26/watch-the-honeycomb-clock-gently-track-time/ | Watch The Honeycomb Clock Gently Track Time | Donald Papp | [
"clock hacks",
"LED Hacks"
] | [
"clock",
"diffuser",
"hex",
"hexagon",
"honey",
"laser cut",
"led",
"rgb"
] | We love clocks here at Hackaday, and so does [John Whittington]. Last year he created
this hexagonal honey clock
(or “Honock”) by combining some RGB LEDs with a laser-cut frame to create a smooth time display that uses color and placement to display time with a simple and attractive system.
The outer ring of twelve hex... | 19 | 12 | [
{
"comment_id": "4580585",
"author": "Bob Fleming",
"timestamp": "2018-05-26T14:37:28",
"content": "This is what it should really be used for:https://www.youtube.com/watch?v=6R-rQUNViV8",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4582346",
"author... | 1,760,374,353.096789 | ||
https://hackaday.com/2018/05/26/their-battery-is-full-of-air/ | Their Battery Is Full Of Air | Al Williams | [
"home hacks",
"Solar Hacks"
] | [
"alternate energy",
"caes",
"compressed air",
"energy storage",
"micro-caes"
] | Storing electrical energy is a huge problem. A lot of gear we use every day use some form of battery and despite a few false starts at fuel cells, that isn’t likely to change any time soon. However, batteries or other forms of storage are important in many alternate energy schemes. Solar cells don’t produce when it is ... | 46 | 22 | [
{
"comment_id": "4580340",
"author": "Lori",
"timestamp": "2018-05-26T11:24:11",
"content": "Another way to try and boost efficiency is to utilize a multi stage turbine system, with a low pressure turbine downstream of a high pressure turbine. But of course that brings back the issues of the high pr... | 1,760,374,353.178514 | ||
https://hackaday.com/2018/05/26/hackaday-belgrade-is-on-join-in/ | Hackaday Belgrade Is On: Join LiveStream And Chat! | Elliot Williams | [
"cons"
] | [
"Hackaday Belgrade",
"Hackaday Belgrade 2018",
"livestream",
"twitter"
] | Good morning Hackaday universe! Hackaday Belgrade 2018 has just started, and we’re knee-deep in sharing, explaining, and generally celebrating our craft. But just because you’re not here doesn’t mean that you shouldn’t take part.
Watch the talks along with us on
the livestream
.
Take part in
the conference chat
.
Follo... | 2 | 2 | [
{
"comment_id": "4580678",
"author": "Ostracus",
"timestamp": "2018-05-26T15:36:38",
"content": "“But just because you’re not here doesn’t mean that you shouldn’t take part.”I imagine there’s a dimension live brings to the event.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,374,353.220055 | ||
https://hackaday.com/2018/05/26/wireless-charger-gives-a-glimpse-into-industrial-design-process/ | Wireless Charger Gives A Glimpse Into Industrial Design Process | Dan Maloney | [
"Misc Hacks"
] | [
"design",
"drill press",
"fabrication",
"industrial design",
"lathe",
"urethane",
"wireless charger"
] | Almost every product on the market has been through the hands of an industrial designer at some point in its development. From the phone in your pocket to the car in your driveway or the vacuum in your closet, the way things look and work is the result of a careful design process. Taking a look inside that process, lik... | 15 | 5 | [
{
"comment_id": "4580560",
"author": "Sparkygsx",
"timestamp": "2018-05-26T14:08:43",
"content": "He has a 3D printer, since he says he printed the part that holds the PCB, so why didn’t he print the whole thing? That seems far easier, way less messy in the shop, and much cheaper because it’s less l... | 1,760,374,353.272257 | ||
https://hackaday.com/2018/05/25/this-robot-barfs-comics/ | This Robot Barfs Comics! | Rich Hawkes | [
"hardware"
] | [
"comic",
"Comic Strip",
"processing",
"python",
"raspberry pi",
"robot",
"thermal printer"
] | If there’s one thing that’s more fun than a comic, it’s a randomly generated comic. Well, perhaps that’s not true, but Reddit user [cadinb] wrote some software to
generate a random comic strip and then built a robot case for it
. Push a button on the robot and you’re presented with a randomly generated comic strip from... | 7 | 3 | [
{
"comment_id": "4580299",
"author": "Snide",
"timestamp": "2018-05-26T10:58:38",
"content": "I’m not sure in what sense this is a ‘robot’. Seems like a kiosk-style printer.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4580522",
"author": "gregkenn... | 1,760,374,353.31743 | ||
https://hackaday.com/2018/05/25/usb-reverse-engineering-a-universal-guide/ | USB Reverse Engineering: A Universal Guide | Ben James | [
"how-to",
"Peripherals Hacks"
] | [
"devalias",
"guide",
"link dump",
"reverse engineering",
"usb"
] | Every hacker knows what it is to venture down a rabbit hole. Whether it lasts an afternoon, a month, or decades, finding a new niche topic and exploring where it leads is a familiar experience for Hackaday readers.
[Glenn ‘devalias’ Grant] is a self-proclaimed regular rabbit hole diver and is conscious that, between fo... | 20 | 8 | [
{
"comment_id": "4579816",
"author": "processingdata",
"timestamp": "2018-05-26T02:37:40",
"content": "Looks like the site is offline. You can read the google cached version here:http://webcache.googleusercontent.com/search?q=cache%3Ahttps%3A%2F%2Fwww.linuxvoice.com%2Fdrive-it-yourself-usb-car-6%2F&... | 1,760,374,353.540849 | ||
https://hackaday.com/2018/05/25/linear-clock-is-a-different-way-to-look-at-time/ | Linear Clock Is A Different Way To Look At Time | Dan Maloney | [
"clock hacks"
] | [
"clock",
"ESP8266",
"linear",
"scale",
"screw",
"stepper",
"threaded rod",
"timepiece"
] | There are usually two broad user interfaces for clocks. On the one hand you’ve got the dial clock, the default display for centuries, with its numbered face and spinning hands. The other mode is some form of digital clock, where the current time is displayed directly as alphanumeric characters. They’re both useful repr... | 18 | 8 | [
{
"comment_id": "4579661",
"author": "jacobchrist",
"timestamp": "2018-05-25T23:07:32",
"content": "Does it come in metric units?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4580037",
"author": "Jan",
"timestamp": "2018-05-26T08:16:31",
... | 1,760,374,353.676628 | ||
https://hackaday.com/2018/05/25/dont-flake-on-your-fish-feed-them-automatically/ | Don’t Flake On Your Fish—Feed Them Automatically | Kristina Panos | [
"how-to",
"Microcontrollers"
] | [
"atmega328p",
"bluetooth",
"fish",
"fish feeder",
"rtc"
] | We get it. You love your fish, but they can’t bark or gently nip at your shin flesh to let you know they’re hungry. (And they always kind of look hungry, don’t they?) One day bleeds into the next, and you find yourself wondering if you’ve fed them yet today. Or are you thinking of yesterday? Fish deserve better than th... | 6 | 3 | [
{
"comment_id": "4579531",
"author": "reggy",
"timestamp": "2018-05-25T20:13:57",
"content": "give a fish a fish and you have two fish, but teach a fish to fish, and you have a sideshow attraction.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4579773",
... | 1,760,374,353.765848 | ||
https://hackaday.com/2018/05/25/an-ultrasound-driver-with-open-source-fpgas/ | An Ultrasound Driver With Open Source FPGAs | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"iCE40",
"ultrasound"
] | Ultrasound imaging has been around for decades, but Open Source ultrasound has not. While there are a ton of projects out there attempting to create open ultrasound devices, most of this is concentrated on the image-processing side of things, and not the exceptionally difficult problem of pinging a sensor at millions o... | 10 | 6 | [
{
"comment_id": "4579474",
"author": "David",
"timestamp": "2018-05-25T18:59:01",
"content": "Took an ultrasound class in EE grad school. It covered physics and math. But one day we did a lab where we had the chance to use an ultrasound machine like one used in a doctor’s office. We had a cylinder f... | 1,760,374,353.725502 | ||
https://hackaday.com/2018/05/25/biasing-that-transistor-the-emitter-follower/ | Biasing That Transistor: The Emitter Follower | Jenny List | [
"Hackaday Columns",
"how-to"
] | [
"amplifier",
"common collector",
"emitter follower",
"follower",
"transistor",
"transistor biasing"
] | We were musing upon the relative paucity of education with respect to the fundamentals of electronic circuitry with discrete semiconductors
, so we thought we’d do something about it. So far we’ve taken a look at the basics of transistor biasing through the
common emitter amplifier
, then introduced a less common confi... | 29 | 13 | [
{
"comment_id": "4579406",
"author": "jpa",
"timestamp": "2018-05-25T18:00:22",
"content": "Pacman was here and ate all the dots.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4579532",
"author": "cncfriend",
"timestamp": "2018-05-25T20:14:0... | 1,760,374,353.880513 | ||
https://hackaday.com/2018/05/25/hacking-for-learning-and-laughs-the-makers-of-oakwood-school/ | Hacking For Learning And Laughs: The Makers Of Oakwood School | Roger Cheng | [
"cons",
"Hackerspaces"
] | [
"bamf",
"Bay Area maker faire",
"bay area maker faire 2018",
"maker faire",
"Maker Faire Bay Area",
"STEAM eductation"
] | The tagline of Bay Area Maker Faire is “
Inspire the Future
” and there was plenty of inspiration for our future generation. We have exhibits encouraging children to get hands-on making projects to call their own, and we have many schools exhibiting their student projects telling stories of what they’ve done. Then we h... | 3 | 2 | [
{
"comment_id": "4579332",
"author": "Ren",
"timestamp": "2018-05-25T16:35:16",
"content": "So, the objective of building a “Gravity Racer”, is to have it descend the slowest?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4579336",
"author": "Ren",
... | 1,760,374,353.81139 | ||
https://hackaday.com/2018/05/25/hacking-when-it-counts-the-pioneer-missions/ | Hacking When It Counts: The Pioneer Missions | Dan Maloney | [
"Engineering",
"Featured",
"History",
"Original Art",
"Space"
] | [
"deep space",
"hacking when it counts",
"Jupiter",
"nasa",
"Pioneer",
"voyager"
] | If the heady early days of space exploration taught us anything, it was how much we just didn’t know. Failure after failure mounted, often dramatic and expensive and sometimes deadly. Launch vehicles exploded, satellites failed to deploy, or some widget decided to give up the ghost at a crucial time, blinding a multi-m... | 16 | 8 | [
{
"comment_id": "4579228",
"author": "Ostracus",
"timestamp": "2018-05-25T14:34:57",
"content": "“But everything the spacecraft would need to do would be commanded from the ground over the Deep Space Network (DSN), taking into account the 90 minute round trip when the machines were at Jupiter.”Sure ... | 1,760,374,353.94066 | ||
https://hackaday.com/2018/05/25/nasa-remotely-hacks-curiositys-rock-drill/ | NASA Remotely Hacks Curiosity’s Rock Drill | Al Williams | [
"News",
"Space"
] | [
"curisoity",
"drill",
"jpl",
"mars",
"nasa"
] | We have a lot of respect for the hackers at NASA’s Jet Propulsion Laboratory (JPL). When their stuff has a problem, it is often millions of miles away and yet they often find a way to fix it anyway. Case in point is the Curiosity Mars rover. Back in 2016, the probe’s rock drill broke. This is critical because one of th... | 64 | 9 | [
{
"comment_id": "4578987",
"author": "Nitpicker Smartyass",
"timestamp": "2018-05-25T11:14:47",
"content": "I know that there are people moaning and crying about all the money that is spent on another planet instead of fixing things here. BUT … I really, really like how those girls and guys figure o... | 1,760,374,354.177856 | ||
https://hackaday.com/2018/05/25/bringing-a-vic-20-back-from-an-oily-grave/ | Bringing A VIC-20 Back From An Oily Grave | Dan Maloney | [
"Retrocomputing"
] | [
"cleaning",
"commodore",
"filthy",
"oil",
"restoration",
"retro",
"VIC-20"
] | No matter which platform you’re into, retrocomputing is usually a labor of love. The obsolete, the unpopular, the downright weird – old computers of every stripe are found, restored to something like their former glory, and given a new lease on life. It’s heartwarming, in a way. But when a computer has obviously been a... | 17 | 9 | [
{
"comment_id": "4578722",
"author": "Das Ganon",
"timestamp": "2018-05-25T08:08:23",
"content": "Not surprising, I mean there’s also a C64 being used to balanced Drive Shafts in Poland still.https://i.imgur.com/86U0RHf.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"com... | 1,760,374,354.082859 | ||
https://hackaday.com/2018/05/24/reys-blaster-shoots-glow-in-the-dark-bullets/ | Rey’s Blaster Shoots Glow-in-the-Dark Bullets | Rich Hawkes | [
"Toy Hacks"
] | [
"glow in the dark",
"NN-14",
"replica",
"Rey",
"slingshot",
"star wars",
"weapon"
] | Youtuber and rubber band enthusiast [JoergSprave] is a big fan of Star Wars, and he loved the look of the blaster that Han Solo gave to Rey. He’d seen a few replicas of Rey NN-14 gun, but hadn’t seen any that actually fired anything, so
he set out to make one that did
.
The build itself is from plywood, with a paint jo... | 10 | 6 | [
{
"comment_id": "4578529",
"author": "crazywriterof6",
"timestamp": "2018-05-25T05:03:22",
"content": "Sweet!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4578572",
"author": "Saabman",
"timestamp": "2018-05-25T05:57:18",
"content": "I love his l... | 1,760,374,356.024498 | ||
https://hackaday.com/2018/05/24/ears-to-you-sensing-facial-expressions-with-an-ear-plug/ | Ears To You: Sensing Facial Expressions With An Ear Plug | Al Williams | [
"Wearable Hacks"
] | [
"earplug",
"facial expression",
"Wearables"
] | Electronics keep getting smaller, but human fingers don’t. This leads to a real challenge with highly-embedded wearable computers. Sure, voice command has come a long way, but it has its own challenges. You might not want to verbally command your Borg implants in some situations. Maybe you need to be quiet. Or perhaps ... | 8 | 3 | [
{
"comment_id": "4578407",
"author": "Robert Mateja",
"timestamp": "2018-05-25T02:15:49",
"content": "28bits of C resolution? I’m curious how many are actually usable.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4578422",
"author": "Robert Mateja"... | 1,760,374,355.907846 | ||
https://hackaday.com/2018/05/24/headlight-mod-for-audi-a3/ | Headlight Mod For An Audi A3 | Anool Mahidharia | [
"car hacks"
] | [
"Audi",
"car",
"headlight",
"headlights",
"ldr",
"light sensor",
"pic",
"PIC12F629",
"PIC12F675",
"sensor"
] | If you have a car that is getting on in years, it may be missing some of the latest frills and features that the latest models sport. [Muris] has a slightly dated Audi A3 8P which did not have an AUTO setting for the headlights. In the newer models, this feature turns on the headlights when the ambient light falls belo... | 24 | 8 | [
{
"comment_id": "4578271",
"author": "Internet",
"timestamp": "2018-05-24T23:34:49",
"content": "“If you have a car that is getting on in years, it may be missing some of the latest frills and features that the latest models sport.“[Muris] has a slightly dated Audi A3.”Slightly dated is a 2007 vehic... | 1,760,374,356.089113 | ||
https://hackaday.com/2018/05/24/animated-bluetooth-bike-turn-signals/ | Animated Bluetooth Bike Turn Signals | Tom Nardi | [
"Arduino Hacks",
"LED Hacks",
"Transportation Hacks"
] | [
"arduino nano",
"bicycle",
"hc-05",
"QI",
"turn signal",
"weatherproof"
] | Tired of risking his life every time he had to signal a turn using his hands while riding his bicycle in rainy Vancouver, [Simon Wong] decided he needed something a bit higher tech. But rather than buy something off the shelf,
he decided to make it into his first serious Arduino project
. Given the final results and th... | 40 | 9 | [
{
"comment_id": "4578087",
"author": "aeghiuo",
"timestamp": "2018-05-24T20:24:26",
"content": "There’s a reason why car turn signals are simple, orange blinking lights. Typical car driver won’t concentrate on some tiny, fancy arrows because there’s a lot of other things that might happen on the roa... | 1,760,374,356.380603 | ||
https://hackaday.com/2018/05/24/programmable-air-makes-robotics-a-breeze/ | Programmable Air Makes Robotics A Breeze | Kristina Panos | [
"Arduino Hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"air pressure",
"air pump",
"arduino nano",
"pick and place",
"pressure sensor",
"soft robotics",
"vacuum"
] | [Amitabh] was frustrated by the lack of options for controlling air pressure in soft robotics. The most promising initiative, Pneuduino, seemed to be
this
close to a Shenzhen production run, but the creators have gone radio silent. Faced with only expensive alternatives, he decided to take one for Team Hacker and creat... | 10 | 6 | [
{
"comment_id": "4577986",
"author": "Peter Neilson",
"timestamp": "2018-05-24T18:45:00",
"content": "Adafruit has a flow meter for about $10, or so I learned from some web board called Harkadry, no, no, HACKADAY, that’s it!https://hackaday.com/tag/adafruit-flow-meter/",
"parent_id": null,
"... | 1,760,374,356.244812 | ||
https://hackaday.com/2018/05/24/vcf-east-2018-the-desktop-eniac/ | VCF East 2018: The Desktop ENIAC | Tom Nardi | [
"classic hacks",
"cons",
"Hackaday Columns",
"Retrocomputing",
"Slider"
] | [
"computing history",
"emulation",
"eniac",
"VCF",
"VCF East",
"VCF East XIII"
] | The ENIAC, or Electronic Numerical Integrator and Computer, is essentially the Great Great Grandfather of whatever device you’re currently reading these words on. Developed during World War II for what would be about $7 million USD today, it was designed to calculate artillery firing tables. Once word got out about its... | 23 | 12 | [
{
"comment_id": "4577928",
"author": "James Williams",
"timestamp": "2018-05-24T17:33:46",
"content": "I spent a fair amount of time chatting with [Brian] about this project. I have an interest in the first generation computers and this was one of my favorite exhibits at VCF East.",
"parent_id":... | 1,760,374,355.976863 | ||
https://hackaday.com/2018/05/24/hackaday-belgrade-2018-is-sold-out-we-cant-wait-for-saturday/ | Hackaday Belgrade 2018 Is Sold Out: We Can’t Wait For Saturday | Elliot Williams | [
"cons",
"Hackaday Columns",
"Slider"
] | [
"Belgrade",
"Hackaday Belgrade",
"Hackaday Belgrade 2018"
] | Greetings from beautiful Belgrade! With the Hackaday crew arriving over the last couple of days, preparations are in full swing, and the excitement is building for Hackaday Belgrade 2018 on Saturday. Here’s all the news you need to know.
If you haven’t gotten tickets yet,
you can’t say we didn’t warn you
! We’ve sold o... | 6 | 4 | [
{
"comment_id": "4577859",
"author": "Ren",
"timestamp": "2018-05-24T16:20:24",
"content": "Is there a link to the TV interview?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4577877",
"author": "Aleksandar Bradic",
"timestamp": "2018-05-24T... | 1,760,374,356.138716 | ||
https://hackaday.com/2018/05/24/a-smarter-psu-converter-leaves-the-magic-smoke-inside/ | A Smarter PSU Converter Leaves The Magic Smoke Inside | Lewin Day | [
"classic hacks"
] | [
"AT",
"atx",
"pc",
"pc at",
"power supply",
"psu",
"retrocomputing",
"vintage hardware"
] | Over the years, computers have become faster, but at the same time, more power hungry as well. Way back around the 386 era, most PCs were using the AT standard for power supplies. Since then, the world moved on to the now ubiquitous ATX standard. Hobbyists working on older machines will typically use these readily avai... | 24 | 11 | [
{
"comment_id": "4577799",
"author": "Ren",
"timestamp": "2018-05-24T15:24:23",
"content": "His web pages shows the fuses in fuse holders.I must admit, I haven’t seen drop in fuses or holders that small before.https://x86.fr/wp-content/uploads/2018/05/IMG_0457-768×815.jpg",
"parent_id": null,
... | 1,760,374,356.19607 | ||
https://hackaday.com/2018/05/24/ask-hackaday-diy-top-octave-generator/ | Ask Hackaday: How Do You DIY A Top-Octave Generator? | Elliot Williams | [
"Hackaday Columns",
"Musical Hacks",
"Original Art",
"Slider"
] | [
"diy",
"microcontroller",
"music",
"organ",
"pitch",
"repair"
] | One of the great joys of Hackaday are the truly oddball requests that we sometimes get over the tip line. Case in point: [DC Darsen] wrote in with a busted 1970s organ in need of a new top-octave generator, and wondered if we could help. He had found a complicated but promising circuit online, and was wondering if ther... | 157 | 50 | [
{
"comment_id": "4577710",
"author": "Classic Photography UK",
"timestamp": "2018-05-24T14:07:32",
"content": "I would have thought that something like this would do the trickhttps://www.idt.com/products/clocks-timing/jitter-attenuators-frequency-translation/8t49n1012-femtoclock-ng-12-output-frequen... | 1,760,374,356.587252 | ||
https://hackaday.com/2018/05/24/how-hertha-aryton-enabled-the-titanic-to-call-sos/ | How Hertha Ayrton Enabled The Titanic To Call SOS | Al Williams | [
"Wireless Hacks"
] | [
"arc transmitter",
"Hertha Aryton",
"titanic"
] | [Kathy] recently posted an
interesting video
about the connection of an electronics pioneer named [Hertha Ayrton] to the arc transmitter. The story starts with the observation of the arc lamp — which we learned was a typo of arch lamp.
[Hertha] was born into poverty, but — very odd for the day — obtained a science educ... | 17 | 8 | [
{
"comment_id": "4577672",
"author": "Peter A Neilson",
"timestamp": "2018-05-24T13:24:26",
"content": "That’ll be Ayrton, not Aryton.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4577731",
"author": "Kevin Kessler",
"timestamp": "2018-05-24T14:23:33... | 1,760,374,356.296686 | ||
https://hackaday.com/2018/05/27/vintage-organ-donates-parts-for-two-new-instruments/ | Vintage Organ Donates Parts For Two New Instruments | Dan Maloney | [
"Musical Hacks"
] | [
"amplifier",
"beats",
"distortion",
"keyboard",
"midi",
"music",
"organ",
"pedals",
"Teensy",
"woodworking"
] | It’s often hard to know what to do with a classic bit of electronics that’s taking up far too much of the living room for its own good. But when the thing in question is an electronic organ from the 1970s, the answer couldn’t be clearer: dissect it for its good parts and create two new instruments with them.
Judging by... | 8 | 5 | [
{
"comment_id": "4583568",
"author": "Saabman",
"timestamp": "2018-05-27T23:09:38",
"content": "I guess that’s what I’ll call an organ donor!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4583799",
"author": "richfiles",
"timestamp": "2018-0... | 1,760,374,357.183552 | ||
https://hackaday.com/2018/05/27/rca-tv-gets-new-life-as-interactive-atltvhead/ | RCA TV Gets New Life As Interactive Atltvhead | Steven Dufresne | [
"LED Hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"ESP8266",
"LCD TV",
"tv",
"wearable",
"wearable display",
"ws2812"
] | TVs are usually something you sit and passively watch. Not so for [Nate Damen’s]
interactive, wearable TV head project, aka Atltvhead
. If you’re walking around Atlanta, Georgia and you see him walking around with a TV where his head should be, introduce yourself! Or
sign into Twitch chat and take control
of what’s bei... | 8 | 3 | [
{
"comment_id": "4583269",
"author": "Xeon",
"timestamp": "2018-05-27T20:21:04",
"content": "Suddenly though of a old anime “flcl”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4584299",
"author": "TERRA Operative",
"timestamp": "2018-05-28T... | 1,760,374,357.230702 | ||
https://hackaday.com/2018/05/27/a-nicely-crafted-pov-lightsaber/ | A Nicely Crafted POV Lightsaber | Dan Maloney | [
"Misc Hacks"
] | [
"ESP32",
"GY-521",
"gyro",
"lightsaber",
"movie prop",
"POV"
] | We need to have a talk. As tough a pill as it is to swallow, we have to face that fact that some of the technology promised to us by Hollywood writers and prop makers just isn’t going to come true. We’re never going to have a flux capacitor, actual hoverboards aren’t a real thing, and nobody is going to have sword figh... | 7 | 4 | [
{
"comment_id": "4583053",
"author": "jacobchrist",
"timestamp": "2018-05-27T17:25:38",
"content": "Amazing build, yay Blender! One thing, he forgot the kyber crystal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4583184",
"author": "Benik3",
"times... | 1,760,374,357.334684 | ||
https://hackaday.com/2018/05/27/watch-dogs-inspired-hacking-drone-takes-flight/ | “Watch Dogs” Inspired Hacking Drone Takes Flight | Tom Nardi | [
"drone hacks",
"Security Hacks"
] | [
"BEC",
"hak5",
"penetration testing",
"pineapple",
"quadcopter"
] | They say that life imitates art, which in modern parlance basically means if you see something cool in a video game, movie or TV show, you might be inclined to try and build your own version. Naturally, such things generally come in the form of simple props, perhaps with the occasional embedded LED or noise making circ... | 19 | 7 | [
{
"comment_id": "4582983",
"author": "babi",
"timestamp": "2018-05-27T16:32:13",
"content": "What does it do? It’s not clear if you don’t know the game!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4583226",
"author": "Leithoa",
"timestamp"... | 1,760,374,357.288438 | ||
https://hackaday.com/2018/05/27/a-li-ion-booster-pack-done-right/ | A Li-Ion Booster Pack, Done Right | Jenny List | [
"Cellphone Hacks",
"Parts"
] | [
"18650",
"battery",
"booster pack",
"Cellphone booster",
"Li-ion"
] | We’re all used to battery booster packs containing a Li-ion or Li-poly cell and a little inverter circuit, they are a standard part of 21st century daily survival for those moments when smartphone battery lives don’t perform as advertised. But how many of us have considered what goes into them, and further how many of ... | 12 | 5 | [
{
"comment_id": "4582658",
"author": "JLittle",
"timestamp": "2018-05-27T11:50:27",
"content": "Hey Jenny,shouldn’t that be “it has a high 2.9V cut-off voltage”? I seem to remember cut-off voltage is usually more agressive in cheap battery packs, around 2.1 – 2.4V and could ruin batteries in the lon... | 1,760,374,357.516362 | ||
https://hackaday.com/2018/05/27/a-classy-sdr-chip-decapped/ | A Classy SDR Chip, Decapped | Jenny List | [
"Parts"
] | [
"AD9361",
"Analog devices",
"chip decapping",
"decap",
"sdr"
] | If you are a regular searcher for exotic parts among the virtual pages of semiconductor supplies catalogs, you will have probably noticed that for a given function it is most often the part bearing the Analog Devices logo that is the most interesting. It may have more functionality, perhaps it will be of a higher speci... | 20 | 10 | [
{
"comment_id": "4582567",
"author": "robert",
"timestamp": "2018-05-27T10:20:29",
"content": "Analog Devices datasheets and documentation are a thing of educational beauty.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4582572",
"author": "Ostracus... | 1,760,374,357.394009 | ||
https://hackaday.com/2018/05/26/flash-your-libre-firmware-with-a-libre-programmer/ | Flash Your Libre Firmware With A Libre Programmer | Tom Nardi | [
"computer hacks",
"Tool Hacks"
] | [
"Chipflasher",
"foss",
"FSF",
"libreboot",
"Zerocat"
] | Whether or not you personally agree with all the ideals of the Free Software Foundation (FSF), you’ve got to give them credit: they don’t mess around. They started by laying the groundwork for a free and open source operating system, then once that dream was realized, started pushing the idea of replacing proprietary B... | 34 | 9 | [
{
"comment_id": "4582250",
"author": "kjhhuhk",
"timestamp": "2018-05-27T06:34:17",
"content": "Unfortunately FSF will kick the bucket along with Stallman",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4582285",
"author": "werecatf",
"timestamp": "2018... | 1,760,374,357.470763 | ||
https://hackaday.com/2018/05/24/modern-wizard-summons-familiar-spirit/ | Modern Wizard Summons Familiar Spirit | Roger Cheng | [
"google hacks",
"Raspberry Pi"
] | [
"AIY",
"arduino",
"artificial intelligence",
"artificial intelligence yourself",
"bamf",
"Bay Area maker faire",
"bay area maker faire 2018",
"google",
"Google AIY",
"maker faire",
"neural network",
"neural networks",
"tensorflow"
] | In European medieval folklore, a practitioner of magic may call for assistance from a familiar spirit who takes an animal form disguise. [Alex Glow] is our modern-day Merlin who invoked the magical incantations of 3D printing, Arduino, and Raspberry Pi to summon her familiar
Archimedes: The AI Robot Owl
.
The key attra... | 10 | 8 | [
{
"comment_id": "4577280",
"author": "Nitpicker Smartyass",
"timestamp": "2018-05-24T08:15:30",
"content": "Reminds me of …https://youtu.be/rzKhqt5IRnM?t=40only with a more plastic-appeal than Bubo.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4577419",
... | 1,760,374,357.571911 | ||
https://hackaday.com/2018/05/23/esp32-boards-with-displays-an-overview/ | ESP32 Boards With Displays: An Overview | Al Williams | [
"Microcontrollers",
"Wireless Hacks"
] | [
"e-paper display",
"ESP32",
"oled display"
] | The ESP8266 has become practically the 555 chip of WiFi connected microcontrollers. Traditionally, you’d buy one on a little breakout board with some pins and a few connectors, and then wire up anything else you need. The ESP8266’s big brother, the ESP32, hasn’t quite taken over from the ESP8266, but it has a lot more ... | 17 | 4 | [
{
"comment_id": "4577078",
"author": "cyk",
"timestamp": "2018-05-24T05:42:32",
"content": "Not a single word about the M5Stack?http://www.m5stack.com/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4577114",
"author": "Chris B",
"timestamp":... | 1,760,374,357.679122 | ||
https://hackaday.com/2018/05/23/using-tensorflow-to-recognize-your-own-objects/ | Using TensorFlow To Recognize Your Own Objects | Steven Dufresne | [
"Software Development",
"Software Hacks"
] | [
"Google Inception",
"inception",
"neural network",
"object recognition",
"tensorflow",
"training"
] | When the time comes to add an object recognizer to your hack, all you need do is choose from many of the available ones and retrain it for your particular objects of interest. To help with that, [Edje Electronics] has put together
a step-by-step guide to using TensorFlow to retrain Google’s Inception object recognizer
... | 9 | 5 | [
{
"comment_id": "4576931",
"author": "Gravis",
"timestamp": "2018-05-24T02:42:12",
"content": "Does it work offline or does it need to talk to google?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4577012",
"author": "Im_Int",
"timestamp": "... | 1,760,374,357.626968 | ||
https://hackaday.com/2018/05/23/retro-rebuild-recreates-sgi-workstation-demos-on-the-go/ | Retro Rebuild Recreates SGI Workstation Demos On The Go | Kerry Scharfglass | [
"FPGA",
"News",
"Retrocomputing"
] | [
"demo",
"fpga",
"gpu",
"graphics",
"sgi"
] | When [Lawrence] showed us the
Alice4
after Maker Faire Bay Area last weekend it wasn’t apparent how special the system was. The case is clean and white, adorned only with a big red button below a 7″ screen with a power switch around the back. When the switch is flicked the system boots to display a familiar animation a... | 21 | 11 | [
{
"comment_id": "4576734",
"author": "Oliver",
"timestamp": "2018-05-23T23:36:13",
"content": "Thats pretty cool, its a shame the cool factor will go straight over the heads of most young people.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4576755",
"au... | 1,760,374,358.50809 | ||
https://hackaday.com/2018/05/23/grawler-painless-cleaning-for-glass-roofs/ | Grawler: Painless Cleaning For Glass Roofs | Kristina Panos | [
"Arduino Hacks",
"Slider"
] | [
"aluminium",
"arduino pro micro",
"bluetooth",
"NEMA-17",
"PLA",
"tank treads",
"window cleaning"
] | Part of [Gelstronic]’s house has a glass roof. While he enjoys the natural light and warmth, he doesn’t like getting up on a ladder to clean it every time a bird makes a deposit or the rainwater stains build up. He’s tried to make a cleaning robot in the past, but the 25% slope of the roof complicates things a bit. Now... | 18 | 7 | [
{
"comment_id": "4576544",
"author": "captnmike",
"timestamp": "2018-05-23T20:14:37",
"content": "The World Trade Center had a mechanical window cleaning system, went up and down the building in tracks so no window washers had to hang on the side of the building",
"parent_id": null,
"depth":... | 1,760,374,358.44577 | ||
https://hackaday.com/2018/05/23/open-source-underwater-distributed-sensor-network/ | Open Source Underwater Distributed Sensor Network | Steven Dufresne | [
"green hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"clams",
"clamshell",
"sensor",
"underwater",
"water quality"
] | One way to design an underwater monitoring device is to take inspiration from nature and emulate an underwater creature. [Michael Barton-Sweeney] is
making devices in the shape of, and functioning somewhat like, clams
for his open source underwater distributed sensor network.
The clams contain the electronics, sensors,... | 32 | 10 | [
{
"comment_id": "4576467",
"author": "steve",
"timestamp": "2018-05-23T19:07:38",
"content": "Copper seems like a bad idea as it’s very toxic to reefs. I’ve heard stories where a kid puts a penny in a reef tank and kills most of it.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,358.580617 | ||
https://hackaday.com/2018/05/23/mechanisms-solenoids/ | Mechanisms: Solenoids | Dan Maloney | [
"Engineering",
"Hackaday Columns",
"Original Art",
"Slider"
] | [
"coil",
"drive",
"electromagnet",
"Mechanisms",
"plunger",
"rotary",
"shading",
"snubber",
"solenoid",
"spring"
] | Since humans first starting playing with electricity, we’ve proven ourselves pretty clever at finding ways to harness that power and turn it into motion. Electric motors of every type move the world, but they are far from the only way to put electricity into motion. When you want continuous rotation, a motor is the way... | 34 | 11 | [
{
"comment_id": "4576344",
"author": "Ren",
"timestamp": "2018-05-23T17:44:38",
"content": "“The solenoid sits atop the starter motor and is responsible for connecting and disconnecting the starter from the system. ”In the case of older Fords, the “solenoid” was an electromagnetic relay that engaged... | 1,760,374,358.754663 | ||
https://hackaday.com/2018/05/23/friday-hack-chat-making-programming-easier/ | Friday Hack Chat: Making Programming Easier | Brian Benchoff | [
"Hackaday Columns"
] | [
"Hack Chat",
"ide",
"programming",
"Visuino"
] | There is a long history of graphical programming languages. Some people don’t like to code, and for them, graphical programming languages replace semicolons and brackets with easy-to-understand boxes and wires.
This Friday, we’re going to be
talking about graphical programming languages
with [Boian Mitov]. He’s a softw... | 54 | 12 | [
{
"comment_id": "4576196",
"author": "Ren",
"timestamp": "2018-05-23T16:09:49",
"content": "Dagnabbit!Programming is supposed to be hard!That’s what makes programmers an elite caste!Y’all don’t want any riff-raff getting in on the sweet benefits of programmin’…",
"parent_id": null,
"depth": ... | 1,760,374,358.984466 | ||
https://hackaday.com/2018/05/23/plant-biology-is-a-gateway/ | Plant Biology Is A Gateway | Brian McEvoy | [
"how-to"
] | [
"biology",
"cells",
"microscopy",
"plant",
"sample",
"sectioning",
"stain"
] | Too many college students have been subject to teachers’ aids who think they are too clever to be stuck teaching mere underclassmen. For that reason, [The Thought Emporium] is important because he approaches learning with gusto and is always ready to learn something new himself and teach anyone who wants to learn. When... | 7 | 2 | [
{
"comment_id": "4576193",
"author": "Ren",
"timestamp": "2018-05-23T16:06:58",
"content": "Gateway?As in “gateway drug”?B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4576336",
"author": "Mike Massen",
"timestamp": "2018-05-23T17:39:20",... | 1,760,374,358.679935 | ||
https://hackaday.com/2018/05/23/spacexs-next-giant-leap-second-stage-recovery/ | SpaceX’s Next Giant Leap: Second Stage Recovery | Tom Nardi | [
"Featured",
"Space"
] | [
"ballute",
"Falcon 9",
"parafoil",
"recovery",
"SpaceX"
] | With the successful launch of the Bangabandhu-1 satellite on May 11th, the final version of the Falcon 9 rocket has finally become operational. Referred to as the “Block 5”, this version of the rocket is geared specifically towards reuse. The lessons learned from the recovery and reflight of earlier builds of the F9 ha... | 62 | 16 | [
{
"comment_id": "4576003",
"author": "Ren",
"timestamp": "2018-05-23T14:14:05",
"content": "In the movie “2010”, they used a ballute (more like several of them) to slow the Russian spacecraft to orbit Jupiter.Whether it is really feasible, will be seen, but it was a cool scene in the movie.",
"p... | 1,760,374,359.084087 | ||
https://hackaday.com/2018/05/23/blowing-rings-with-cannons-fogs-and-lasers/ | Blowing Rings With Cannons, Fogs, And Lasers | Sven Gregori | [
"Weapons Hacks"
] | [
"fog machine",
"lasers",
"PVC",
"PVC air cannon",
"vortex",
"vortex cannon"
] | In today’s healthy lifestyle oriented world, blowing smoke rings won’t impress too many people anymore. Unless of course you are [NightHawkInLight] and
blow them with a vortex cannon and add lasers for visual effects
. Although, his initial motivation was to build a device that could shoot lost frisbees out off the tre... | 11 | 7 | [
{
"comment_id": "4575825",
"author": "John",
"timestamp": "2018-05-23T12:07:49",
"content": "Cannons? What has this to do with snooker or billiards? I think you mean a plurality of cannon.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4575830",
"author": ... | 1,760,374,358.892291 | ||
https://hackaday.com/2018/05/23/automatic-i2c-address-allocation-for-daisy-chained-sensors/ | Automatic I2C Address Allocation For Daisy-Chained Sensors | Jenny List | [
"computer hacks",
"hardware"
] | [
"i2c",
"i2c addressing",
"i2c bus",
"i2c interface"
] | Many readers will be familiar with interfacing I2C peripherals. A serial line joins a string of individual I2C devices, and each of the devices has its own address on that line. In most cases when connecting a single device or multiple different ones there is no problem in ensuring that they have different addresses.
W... | 23 | 11 | [
{
"comment_id": "4575438",
"author": "deshipu",
"timestamp": "2018-05-23T08:20:21",
"content": "All is fun and games until one of them breaks or gets a bad connection — good luck debugging then.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4575507",
"aut... | 1,760,374,359.144026 | ||
https://hackaday.com/2018/05/22/this-computer-is-as-quiet-as-the-mouse/ | This Computer Is As Quiet As The Mouse | Anool Mahidharia | [
"computer hacks"
] | [
"fanless computer",
"itx",
"passive cooled",
"passive cooling",
"silent pc",
"streacom"
] | [Tim aka tp69] built a
completely silent desktop computer
. It can’t be heard – at all. The average desktop will have several fans whirring inside – cooling the CPU, GPU, SMPS, and probably one more for enclosure circulation – all of which end up making quite a racket, decibel wise. Liquid cooling might help make it qu... | 67 | 20 | [
{
"comment_id": "4575249",
"author": "jafinch78",
"timestamp": "2018-05-23T05:43:06",
"content": "Awesome and no extra wire shielding and/or acoustic foam! TEMPEST spec this baby!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4575323",
"author": "jpa",
... | 1,760,374,360.209763 | ||
https://hackaday.com/2018/05/22/machine-learning-crash-course-from-google/ | Machine Learning Crash Course From Google | Al Williams | [
"Software Development",
"Software Hacks"
] | [
"deep learning",
"machine learning",
"tensor flow"
] | We’ve been talking a lot about machine learning lately. People are using it for speech generation and recognition, computer vision, and even classifying radio signals. If you’ve yet to climb the learning curve, you might be interested in a
new free class from Google
using TensorFlow.
Of course, we’ve covered tutorials ... | 9 | 5 | [
{
"comment_id": "4574883",
"author": "Ostracus",
"timestamp": "2018-05-23T02:18:17",
"content": "“Google says you should be adept at intro level algebra and that higher math could be helpful, although not essential.”Might need if if you’re aiming for those million dollar jobs.https://www.nytimes.com... | 1,760,374,360.103123 | ||
https://hackaday.com/2018/05/22/spared-no-expense-cloning-the-jurassic-park-explorer/ | Spared No Expense: Cloning The Jurassic Park Explorer | Tom Nardi | [
"car hacks",
"classic hacks",
"Transportation Hacks"
] | [
"acrylic",
"bending acrylic",
"car hacking",
"Ford Explorer",
"jurassic park",
"movies"
] | While you’d be hard pressed to find any serious figures on such things, we’d wager there’s never been a vehicle from a TV show or movie that has been duplicated by fans more than the Staff Jeeps from
Jurassic Park
. Which is no great surprise: not only do they look cool, but it’s a relatively easy build. A decent paint... | 53 | 11 | [
{
"comment_id": "4574633",
"author": "Tom Hargrave",
"timestamp": "2018-05-22T23:23:37",
"content": "This looks like a great build but my favorite is still the three Mercedes M class SUVs used in the first movie.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id":... | 1,760,374,360.299236 | ||
https://hackaday.com/2018/05/22/restoring-a-1930s-oscilloscope-without-supplying-power/ | Restoring A 1930s Oscilloscope – Without Supplying Power | Ben James | [
"Repair Hacks",
"Teardown"
] | [
"1930s",
"crt",
"Mr Carlson",
"oscilloscope",
"radio",
"restoration"
] | We’ve all done it: after happening across a vintage piece of equipment and bounding to the test bench, eager to see if it works, it gets plugged in, the power switch flipped, but… nothing. [Mr Carlson] explains why this is such a bad idea, and accompanies it with more key knowledge for a successful restoration – this t... | 36 | 10 | [
{
"comment_id": "4574378",
"author": "Ren",
"timestamp": "2018-05-22T20:18:49",
"content": "Ugh! 45 minute video.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4574398",
"author": "Tasked",
"timestamp": "2018-05-22T20:41:11",
"conten... | 1,760,374,360.374028 | ||
https://hackaday.com/2018/05/22/smiling-robot-moves-without-wires/ | Smiling Robot Moves Without Wires | Brian McEvoy | [
"Robots Hacks"
] | [
"3-phase",
"linear",
"motor",
"movement",
"robot",
"three-phase",
"X-Y",
"xy table"
] | What could be cuter than a little robot that scuttles around its playpen and smiles all day? For the 2018 Hackaday prize [bobricius] is sharing his
2D Actuator for Micro Magnetic Robot
. The name is not so cute, but it boasts a bill of materials under ten USD, so it should be perfect for educational use, which is why i... | 11 | 3 | [
{
"comment_id": "4574260",
"author": "cnlohr",
"timestamp": "2018-05-22T18:36:31",
"content": "Some day I’m going to find a use for this mechanism of locomotion. It’s just so cool, and people keep refining it all the time. Keep up the good work, bobricius",
"parent_id": null,
"depth": 1,
... | 1,760,374,360.47583 | ||
https://hackaday.com/2018/05/22/robert-hall-and-the-solid-state-laser/ | Robert Hall And The Solid-State Laser | Dan Maloney | [
"Biography",
"Engineering",
"Hackaday Columns",
"Original Art"
] | [
"diode",
"general electric",
"germanium",
"laser",
"semiconductor",
"silicon",
"solid state"
] | The debt we all owe must be paid someday, and for inventor Robert N. Hall, that debt came due in 2016 at the ripe age of 96. Robert Hall’s passing went all but unnoticed by everyone but his family and a few close colleagues at General Electric’s Schenectady, New York research lab, where Hall spent his remarkable career... | 14 | 5 | [
{
"comment_id": "4574165",
"author": "AMA",
"timestamp": "2018-05-22T17:10:59",
"content": "I think most people would call the ruby laser solid state because the gain medium is solid state.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4574175",
"au... | 1,760,374,360.431499 | ||
https://hackaday.com/2018/05/22/hacking-a-cheap-laser-rangefinder/ | Hacking A Cheap Laser Rangefinder | Tom Nardi | [
"Laser Hacks",
"Tool Hacks"
] | [
"laser range finder",
"reverse engineering",
"st-link",
"STM32F100"
] | When a new piece of technology comes out, the price is generally so high that it keeps away everyone but the die hard early adopters. But with time the prices inch down enough that more people are willing to buy, which then drives the prices down even more, until eventually the economies of scale really kick in and the... | 33 | 12 | [
{
"comment_id": "4574053",
"author": "Ren",
"timestamp": "2018-05-22T15:34:53",
"content": "Wow! Quick, concise video! (Maybe a bit too quick for me B^)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4574055",
"author": "Ren",
"timestamp": "2018-05-22... | 1,760,374,360.842289 | ||
https://hackaday.com/2018/05/22/scratch-your-itch-to-fly/ | Hands-On: Flying Drones With Scratch | Al Williams | [
"drone hacks",
"Hackaday Columns",
"Software Development"
] | [
"DJI",
"drone",
"ryze technologies",
"scratch",
"tello",
"uav"
] | I’ll admit it. I have a lot of drones. Sitting at my desk I can count no fewer than ten in various states of flight readiness. There are probably another half dozen in the garage. Some of them cost almost nothing. Some cost the better part of a thousand bucks. But I recently bought a drone for $100 that is both technic... | 8 | 6 | [
{
"comment_id": "4574011",
"author": "Ren",
"timestamp": "2018-05-22T14:49:41",
"content": "You forgot to mention the “Detonate Payload” command.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4574060",
"author": "Ostracus",
"timestamp": "201... | 1,760,374,360.529763 | ||
https://hackaday.com/2018/05/22/raspberry-pi-keeps-cool/ | Raspberry Pi Keeps Cool | Al Williams | [
"Raspberry Pi"
] | [
"air cooling",
"raspberry pi"
] | In general, heat is the enemy of electronics. [Christopher Barnatt] is serious about defeating that enemy and did some
experiments with different cooling solutions for the Raspberry Pi 3
. You can see the results in the video below.
A simple test script generated seven temperature readings for each configuration. [Barn... | 39 | 11 | [
{
"comment_id": "4573856",
"author": "Luke",
"timestamp": "2018-05-22T11:50:21",
"content": "“The script executes quickly ”The video was sped up, not the script.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4573931",
"author": "Andrew",
"ti... | 1,760,374,360.602033 | ||
https://hackaday.com/2018/05/22/a-parallel-port-synthesiser-for-your-dos-pc/ | A Parallel Port Synthesiser For Your DOS PC | Jenny List | [
"classic hacks",
"Musical Hacks"
] | [
"dos",
"general midi",
"midi",
"sam2695"
] | It is a great shame that back in the days when a typical home computer had easy low-level hardware access that is absent from today’s machines, the cost of taking advantage of it was so high. Professional PCBs were way out of reach of a home constructor, and many of the integrated circuits that might have been used wer... | 12 | 6 | [
{
"comment_id": "4573981",
"author": "gregkennedy",
"timestamp": "2018-05-22T14:11:06",
"content": "Wow, never heard of that chip. Sounds amazing! Very cool to have a standalone MIDI player on a chip.There is also the older version, SAM2195. And VLSI has the VS1053b which is a general audio codec... | 1,760,374,360.76628 | ||
https://hackaday.com/2018/05/21/dual-sdr-receives-two-bands-at-once/ | Dual SDR Receives Two Bands At Once | Al Williams | [
"News",
"Radio Hacks"
] | [
"rspduo",
"sdr",
"sdrplay",
"software-defined radio"
] | There was a time when experimenting with software defined radio (SDR) was exotic. But thanks to cheap USB-based hardware, this technology is now accessible to anyone. While it is fun to play with the little $20 USB sticks, you’ll eventually want to move up to something better and there are a lot of great options. One o... | 15 | 8 | [
{
"comment_id": "4573140",
"author": "NiHaoMike",
"timestamp": "2018-05-22T05:22:38",
"content": "I’m surprised using it in dual channel modes cuts down the bandwidth that much. I would expect a halving if they normally run two ADCs interleaved like how many scopes do it.",
"parent_id": null,
... | 1,760,374,360.896556 | ||
https://hackaday.com/2018/05/21/online-logic-simulator-is-textual-no-graphical/ | Online Logic Simulator Is Textual — No, Graphical | Al Williams | [
"Tool Hacks"
] | [
"browser based tool",
"digital logic",
"logic simulator"
] | We have a bit of a love/hate relationship with tools in the web browser. For education or just a quick experiment, we love having circuit analysis and FPGA tools at our fingertips with no installation required. However, we get nervous about storing code or schematics we might like to keep private “in the cloud.” Howeve... | 6 | 4 | [
{
"comment_id": "4573058",
"author": "Ostracus",
"timestamp": "2018-05-22T04:15:07",
"content": "I can see a synthesis of graphical/textual in that one can bring to bear programming tools to the problem space.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "457... | 1,760,374,360.944032 | ||
https://hackaday.com/2018/05/21/fail-of-the-week-the-semiconductor-lapping-machine-that-cant-lap-straight/ | Fail Of The Week: The Semiconductor Lapping Machine That Can’t Lap Straight | Dan Maloney | [
"Fail of the Week",
"Misc Hacks"
] | [
"abrasive",
"decapping",
"diamond",
"die",
"hard drive",
"lapping",
"platter",
"silicon"
] | It seemed like a good idea to
build a semiconductor lapping machine from an old hard drive
. But there’s just something a little off about [electronupdate]’s build, and we think the Hackaday community might be able to pitch in to help.
For those not into the anatomy and physiology of semiconductors, getting a look at t... | 34 | 16 | [
{
"comment_id": "4572711",
"author": "Toby Sanchez",
"timestamp": "2018-05-21T23:25:16",
"content": "I used to do de-processing at Intel to verify schematics.There’s a special trick to mounting ICs and particular (simple) mechanical device to mount the chip.You should mount dice with this if no alre... | 1,760,374,361.125024 | ||
https://hackaday.com/2018/05/21/alexa-and-particle-modernize-coffee-machine-by-one-iota/ | Alexa And Particle Modernize Coffee Machine By One Iota | Kristina Panos | [
"Microcontrollers",
"Misc Hacks"
] | [
"alexa",
"coffee",
"delonghi",
"particle photon",
"state machine",
"voice control"
] | When [Steve Parker]’s girlfriend got a tea kettle that takes voice commands, he suddenly saw his fancy bean-to-cup coffee machine as a technological dinosaur. It may make good coffee, but getting the DeLonghi going is inconvenient, because it runs a self-cleaning cycle each time it’s turned on or off.
Thus began [Steve... | 7 | 4 | [
{
"comment_id": "4572341",
"author": "MacSimski",
"timestamp": "2018-05-21T20:14:07",
"content": "“coffe machine, turn of alexa!”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4573950",
"author": "Ren",
"timestamp": "2018-05-22T13:40:17",
... | 1,760,374,361.043956 | ||
https://hackaday.com/2018/05/21/investigating-the-tiny-salvaged-ups-from-a-lightbulb/ | Investigating The Tiny Salvaged UPS From A Lightbulb | Tom Nardi | [
"Hackaday Columns",
"hardware",
"LED Hacks"
] | [
"battery backup",
"load testing",
"microcontroller",
"ups",
"voltage regulator"
] | Recently I had the opportunity to do
a teardown of a battery-backed LED bulb
, and found some interesting details on how the device operated. Essentially, the bulb contained a low voltage DC uninterruptible power supply that would automatically switch between AC power and internal battery as needed. The implications of... | 34 | 8 | [
{
"comment_id": "4571956",
"author": "jrfl",
"timestamp": "2018-05-21T17:18:17",
"content": "Seems that a much easier/smarter plan would be to just wire your project to run off the battery directly. It wouldn’t turn off when the ‘light switch’ is off, but seeing as how it is an UPS I am pretty sure ... | 1,760,374,361.745754 | ||
https://hackaday.com/2018/05/21/wireless-headphone-hack-dangles-batteries-like-earrings/ | Wireless Headphone Hack Dangles Batteries Like Earrings | Tom Nardi | [
"classic hacks",
"digital audio hacks",
"Musical Hacks"
] | [
"bluetooth",
"earbuds",
"headphones",
"Koss Porta Pro"
] | Koss Porta Pro headphones are something of a rarity in the world of audio gear: they’re widely regarded as sounding great, but don’t cost an exorbitant amount of money. Since the line was introduced in 1984, they’ve been the go-to headphones for those who don’t subscribe to the idea that you should have to take out a l... | 10 | 3 | [
{
"comment_id": "4571854",
"author": "eletrax",
"timestamp": "2018-05-21T16:16:55",
"content": "Been through midrange Sennheiser HD205 and AKG K77’s before, as well as Koss Porta Pros, but when sound is the top priority, nothing came close to Grado SR60’s. About twice the price, but very durable and... | 1,760,374,361.42429 | ||
https://hackaday.com/2018/05/21/explaining-efail-and-why-it-isnt-the-end-of-email-privacy/ | Explaining Efail And Why It Isn’t The End Of Email Privacy | Pedro Umbelino | [
"Current Events",
"Featured",
"News",
"Original Art",
"Security Hacks",
"Slider"
] | [
"eFail",
"email client",
"encrypted email",
"html",
"PGP",
"vulnerabilities",
"vulnerability"
] | Last week the PGPocalipse was all over the news… Except that, well, it wasn’t an apocalypse.
A team of researchers published
a paper
(PDF) where they describe how to decrypt a PGP encrypted email via a targeted attack. The research itself is pretty well documented and, from a security researcher perspective, it’s a goo... | 25 | 15 | [
{
"comment_id": "4571677",
"author": "james_lan",
"timestamp": "2018-05-21T14:44:43",
"content": "I noted KMail wasn’t getting mentions in the early media coverage. Looking into it a little bit, and realized that was because it wasn’t really vulnerable without changing settings. There’s the unchecke... | 1,760,374,361.810491 | ||
https://hackaday.com/2018/05/21/ditch-the-tapes-put-an-android-in-your-deck/ | Ditch The Tapes, Put An Android In Your Deck | Tom Nardi | [
"Android Hacks",
"classic hacks",
"digital audio hacks"
] | [
"android",
"cassette",
"retro",
"VU meter"
] | While we here at Hackaday never question why an individual took on a particular project, it surely doesn’t stop our beloved readers from grabbing their pitchforks and demanding such answers in the comments. Perhaps no posts generate more of this sort of furore than the ones which feature old audio gear infused with mod... | 44 | 21 | [
{
"comment_id": "4571004",
"author": "Lee",
"timestamp": "2018-05-21T11:02:03",
"content": "This cries out for an HID device driven by the front controls rather than the phone screen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4571029",
"author": "Saab... | 1,760,374,361.671532 | ||
https://hackaday.com/2018/05/21/romelas-sideways-walking-robot-has-evolved-more-limbs/ | RoMeLa’s Sideways Walking Robot Has Evolved More Limbs | Steven Dufresne | [
"Robots Hacks"
] | [
"quadruped",
"robot",
"romela"
] | Despite the success shown in prototypes from groups like Boston Dynamics, bipedal walking is still really hard to implement. When the robot lifts one leg, it has to shift its center of gravity over the other leg to avoid falling sideways.
The Autonomous Legged Personal Helper Robot with Enhanced Dynamics (ALPHRED) is g... | 19 | 7 | [
{
"comment_id": "4570654",
"author": "Adam",
"timestamp": "2018-05-21T08:56:11",
"content": "Come on, at least make the body a big ball, so it can be a Walking Eye",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4571459",
"author": "Ren",
"tim... | 1,760,374,361.53224 | ||
https://hackaday.com/2018/05/20/slipcasting-resin-prototypes/ | Slipcasting Resin Prototypes | Brian McEvoy | [
"how-to",
"Parts"
] | [
"blow molding",
"blowmold",
"ceramic",
"making",
"plastic",
"poly",
"resin",
"slipcasting"
] | [Eric Strebel] doesn’t need an introduction anymore. If there is a picture of an elegantly designed part with a professional finish on our pages, there is a good chance he has a hand in it. This time he is sharing his method of
making a part which looks like it is blow-molded
but it is not. Blow-molded parts have a dis... | 11 | 6 | [
{
"comment_id": "4570571",
"author": "Gregg Eshelman",
"timestamp": "2018-05-21T08:04:29",
"content": "Ceramic slip casting works by the plaster mold absorbing water from the clay slip. The longer you let it set, the thicker the casting’s walls will be.The plaster needs to be special made for slip c... | 1,760,374,361.474478 | ||
https://hackaday.com/2018/05/20/card-reader-lockout-keeps-unauthorized-tool-users-at-bay/ | Card Reader Lockout Keeps Unauthorized Tool Users At Bay | Dan Maloney | [
"Hackerspaces",
"Tool Hacks"
] | [
"arduino",
"card reader",
"hackerpace",
"lockout",
"logging",
"Machine tool",
"magnetic strip",
"relay"
] | It’s a problem common to every hackerspace, university machine shop, or even the home shops of parents with serious control issues: how do you make sure that only trained personnel are running the machines? There are all kinds of ways to tackle the problem, but why not throw a little tech at it with something
like this... | 19 | 11 | [
{
"comment_id": "4570119",
"author": "Rybitski",
"timestamp": "2018-05-21T03:22:27",
"content": "The workday ends at 5:00PM and cleanup starts at 4:30PM plenty of time to ensure the projects have come to an end and no one is using the tools. This is installed in a scene shop (read- shop that builds ... | 1,760,374,361.589078 |
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