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https://hackaday.com/2019/04/14/hackaday-links-april-14-2019/ | Hackaday Links: April 14, 2019 | Brian Benchoff | [
"Hackaday Columns",
"Hackaday links"
] | [
"4/20",
"reel-to-reel",
"tape"
] | Look at this prototype Apple smartphone from 1993!
For a long time, Apple has been in the phone game, with many failed attempts to combine a laptop screen with a phone. The most noteworthy attempt would be the Snow White phone designed around 1982, but this didn’t go to market. Apple tried again in 1993 with the Walt p... | 10 | 7 | [
{
"comment_id": "6139901",
"author": "Hirudinea",
"timestamp": "2019-04-15T00:45:44",
"content": "$13k for a tape machine!? I’ll stick to downloading MP3s from YouTube thanks.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6139976",
"author": "Ostrac... | 1,760,373,966.468963 | ||
https://hackaday.com/2019/04/14/a-peek-inside-a-typical-british-residential-power-panel/ | A Peek Inside A Typical British Residential Power Panel | Dan Maloney | [
"Misc Hacks"
] | [
"british",
"circuit breakers",
"consumer unit",
"distribution",
"GFCI",
"grid",
"mains",
"power panel",
"RCD",
"uk"
] | No matter what field you’re in, it’s interesting and instructive to find out how others practice it. That’s especially true with electrical distribution systems, where standards and practices differ from country to country and even between regions.
This tour of a typical British residential electrical panel
is a great ... | 43 | 16 | [
{
"comment_id": "6139234",
"author": "Clovis Fritzen",
"timestamp": "2019-04-14T21:22:58",
"content": "Professional installations in Brazil serve from best of two worlds (Nema and DIN), so things down here look as beautiful and functional as in the video. Of course not every installer or customer is... | 1,760,373,967.138787 | ||
https://hackaday.com/2019/04/14/building-your-own-guitar-pickup-from-scrap/ | Building Your Own Guitar Pickup From Scrap | Lewin Day | [
"Musical Hacks"
] | [
"electric guitar",
"guitar pickup",
"pickup"
] | Pickups are a key part of an electric guitar’s sound. You can spend a king’s ransom on tracking down just the right Vintage American Original 1950s Whatevers (TM) to put in your Spudocaster, but it’s not the only way. [Keith Decent] decided to make a pickup from scratch,
using only materials found lying around the work... | 13 | 8 | [
{
"comment_id": "6139120",
"author": "echodelta",
"timestamp": "2019-04-14T20:53:19",
"content": "At minus 17 dB it was hard to hear (Audacity amplify) revealed a thin tone. There are usually lots of turns of fine wire, like the primary winding of the donor. As it stands it will be low impedance and... | 1,760,373,966.87833 | ||
https://hackaday.com/2019/04/14/bringing-a-childs-play-kitchen-to-life/ | Bringing A Child’s Play Kitchen To Life | Tom Nardi | [
"LED Hacks",
"Microcontrollers",
"Toy Hacks"
] | [
"ESP8266",
"kids oven",
"kitchen",
"neopixel ring",
"RGB LED",
"TM1637"
] | Given how many adults will go out of their way to avoid spending any extended amount of time in the kitchen, it’s pretty amazing how much children love playing in their miniature versions. Especially since they tend to be pretty simple: usually they’re little more than different sized boxes made out of MDF to represent... | 7 | 4 | [
{
"comment_id": "6137946",
"author": "Lightning Phil",
"timestamp": "2019-04-14T14:50:21",
"content": "Did something like this too. But more importantly, the first thing the daughter cooked in the disco microwave was a small robot.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,966.924321 | ||
https://hackaday.com/2019/04/14/clock-mod-brings-super-game-boy-to-competitive-arena/ | Clock Mod Brings Super Game Boy To Competitive Arena | Brian Benchoff | [
"classic hacks",
"Nintendo Game Boy Hacks"
] | [
"game boy",
"super game boy",
"Tindie"
] | For one time small window between 1994 and 1998, you could play Game Boy games in color with a Super Game Boy. This was a cartridge that plugged into a Super Nintendo, and using proprietary Lock-On™ technology, you could play Game Boy games on the big screen. Inside the Super Game Boy was the guts of a real Game Boy. T... | 14 | 9 | [
{
"comment_id": "6137435",
"author": "Erik Johnson",
"timestamp": "2019-04-14T11:46:52",
"content": "That’s a really slick install method",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6137498",
"author": "Jan",
"timestamp": "2019-04-14T12:17... | 1,760,373,966.402586 | ||
https://hackaday.com/2019/04/14/add-a-host-of-8-bit-processors-to-your-arduino/ | Add A Host Of 8-Bit Processors To Your Arduino | Jenny List | [
"Retrocomputing"
] | [
"6502",
"6809",
"arduino mega",
"z80"
] | Normally when we bring you news of a retrocomputing design, it will centre around a single processor. At its heart will be a 6502, a Z80, or perhaps a 6809. There will be a host of support chips, some memory as RAM or ROM, and a bunch of interfaces. [Erturk Kocalar]’s
RetroShield project for the Arduino Mega
breaks all... | 14 | 6 | [
{
"comment_id": "6137157",
"author": "Mahmoud Ahmed",
"timestamp": "2019-04-14T09:34:43",
"content": "very usefull topic",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6137409",
"author": "roelh",
"timestamp": "2019-04-14T11:36:51",
"content": "The... | 1,760,373,966.827163 | ||
https://hackaday.com/2019/04/13/mods-keep-the-wavebird-kicking-in-the-switch-era/ | Mods Keep The WaveBird Kicking In The Switch Era | Tom Nardi | [
"classic hacks",
"Nintendo Hacks"
] | [
"adapter",
"controller",
"gamecube",
"Nintendo Switch",
"WaveBird"
] | Nintendo made some questionable decisions during the early 2000’s, but developing the WaveBird certainly wasn’t one of them. Years before wireless controllers were the standard on home game consoles, the WaveBird gave GameCube owners a glimpse into the future. It managed to deliver lag-free gaming without resorting to ... | 11 | 4 | [
{
"comment_id": "6136667",
"author": "MRE",
"timestamp": "2019-04-14T06:19:48",
"content": "And cue a Nintendo lawsuit in 3.. 2.. 1..",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6138781",
"author": "Billiamson",
"timestamp": "2019-04-14T19... | 1,760,373,966.672321 | ||
https://hackaday.com/2019/04/13/this-bot-might-be-the-way-to-save-recycling/ | This Bot Might Be The Way To Save Recycling | Lewin Day | [
"green hacks",
"Robots Hacks"
] | [
"CSAIL",
"mit",
"recycle",
"recycling"
] | Recycling is on paper at least, a wonderful thing. Taking waste and converting it into new usable material is generally more efficient than digging up more raw materials. Unfortunately though, sorting this waste material is a labor-intensive process. With China implementing bans on waste imports, suddenly the world is ... | 24 | 9 | [
{
"comment_id": "6136275",
"author": "Ostracus",
"timestamp": "2019-04-14T03:19:27",
"content": "Show robots how to use tools.https://www.technologyreview.com/s/613304/a-robot-has-figured-out-how-to-use-tools/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6... | 1,760,373,966.996385 | ||
https://hackaday.com/2019/04/13/simon-game-is-a-story-of-rushed-deadlines-and-holiday-cheer/ | Simon Game Is A Story Of Rushed Deadlines And Holiday Cheer | Lewin Day | [
"classic hacks"
] | [
"ATTiny 85",
"simon",
"simon says"
] | Sometimes the Christmas season can feel like a holiday all about spending money to demonstrate your love for others. Many a maker has attempted to subvert these commercialistic overtones by giving handmade presents to friends and loved ones. [APA] is no exception,
and has shared their story of producing a simple Simon ... | 1 | 1 | [
{
"comment_id": "6135760",
"author": "G",
"timestamp": "2019-04-14T00:04:20",
"content": "This is awesome, well done!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,373,966.619794 | ||
https://hackaday.com/2019/04/13/these-wire-strippers-are-made-from-pcbs/ | These Wire Strippers Are Made From PCBs | Dan Maloney | [
"Tool Hacks"
] | [
"draftsight",
"dxf",
"eagle",
"gerber",
"pcb",
"stripper",
"stripping",
"wire wrap"
] | The rise in cheap PCB fabrication has made old-school prototyping methods such as wire wrapping somewhat passé, but it still has its place. And if you’re going to wire wrap, you’re going to want a quick and easy way to strip that fine Kynar-insulated wire. So why not use PCB material to make
this handy wire-wrapping wi... | 12 | 4 | [
{
"comment_id": "6135062",
"author": "andrewm",
"timestamp": "2019-04-13T20:13:46",
"content": "Radial != Rotary",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6135147",
"author": "Eric",
"timestamp": "2019-04-13T20:37:20",
"content":... | 1,760,373,967.053529 | ||
https://hackaday.com/2019/04/13/remanufacturing-a-rotary-airplane-engine/ | Remanufacturing A Rotary Airplane Engine | Jenny List | [
"Transportation Hacks"
] | [
"engine",
"gnome",
"rotary engine"
] | If someone tells you they have seen a rotary engine, the chances are that you will immediately think of a Wankel engine, as you might find in some of the more exotic Mazda sports cars. But there is another rotary engine that has a prior claim to the name, and it can be found as the power unit for many early-twentieth-c... | 66 | 27 | [
{
"comment_id": "6134563",
"author": "Miker",
"timestamp": "2019-04-13T17:22:50",
"content": "The wankel also uses its motor oil as lubricant for the rotor. Not total loss, but skip checking your oil or go too long a service or if the oil passage gets blocked you lose your motor!Best thing for old w... | 1,760,373,967.420935 | ||
https://hackaday.com/2019/04/13/its-almost-two-keytars-in-one/ | It’s (Almost) Two Keytars In One! | Jenny List | [
"Musical Hacks",
"Nintendo Game Boy Hacks",
"Nintendo Hacks"
] | [
"chiptune",
"game boy",
"keytar"
] | All the best retro-1980s chiptune acts should possess a keytar. It’s the Law, or something. [Theremin Hero] has reminded us of this with a new video we’ve shown below featuring an instrument he had a part in creating alongside [Sam Wray] and [Siddharth Vadgama] a few years ago.
The Blade
is a 3D-printed keytar featurin... | 4 | 2 | [
{
"comment_id": "6135617",
"author": "Hirudinea",
"timestamp": "2019-04-13T23:19:56",
"content": "An impressive build but everyone knows that almost two keytars, like any number of keytars, is too many.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6137166"... | 1,760,373,967.178502 | ||
https://hackaday.com/2019/04/13/rad-hard-arm-microcontrollers-because-ceramic-components-are-just-cooler/ | Rad-Hard ARM Microcontrollers, Because Ceramic Components Are Just Cooler | Brian Benchoff | [
"Microcontrollers"
] | [
"arm",
"ARM Cortex-M7",
"Atmel",
"microchip",
"rad hard"
] | If you’re building a cubesat, great, just grab a microcontroller off the shelf, you probably don’t need to worry about radiation hardening. If you’re building an experiment for the ISS, just use any old microcontroller. Deep space? That’s a little harder, and you might need to look into radiation tolerant and radiation... | 57 | 22 | [
{
"comment_id": "6133461",
"author": "YGDES",
"timestamp": "2019-04-13T11:14:54",
"content": "Microchip bought Microsemi, another swallower of companies that bought Actel, a maker of space-rated FPGA :-)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6134225... | 1,760,373,967.608923 | ||
https://hackaday.com/2019/04/13/pick-and-place-for-toys/ | Pick And Place For Toys | Lewin Day | [
"classic hacks"
] | [
"pick and place"
] | Toys are great for keeping the kids amused at play time, but oftentimes its difficult to get them to understand the importance of tidying up after themselves. It would naturally be ideal to have some manner of robot to help in this regard,
and [Paco Garcia] might just be leading the charge in this area.
[Paco]’s projec... | 6 | 2 | [
{
"comment_id": "6133576",
"author": "NQ",
"timestamp": "2019-04-13T11:47:30",
"content": "We just had a bed sheet and a tote. We could play with our toys on that sheet. When done, you grab the 4 corners and throw the entire batch in a tote. Have multiple sheets and totes depending on the categor... | 1,760,373,967.466242 | ||
https://hackaday.com/2019/04/12/electronics-on-ice/ | Electronics On Ice | Lewin Day | [
"Misc Hacks"
] | [
"art",
"Frozen",
"ice"
] | We see all manner of electronics enclosures pass through these hallowed pages. Lasercut wooden builds with fancy kerf bending, expertly prepared acrylic boxes, and even the occasional device cast in concrete. [Mike Kohn] decided that all of these were too permanent, however,
and chose a different material – ice.
[Mike]... | 6 | 4 | [
{
"comment_id": "6132195",
"author": "Richard Collins",
"timestamp": "2019-04-13T05:58:04",
"content": "Lewin Day,I am beginning to understand the true beauty of HackaDay. At first I thought these continual demonstrations of unusual skills applied to seemingly useless purposes were a waste of preci... | 1,760,373,967.508016 | ||
https://hackaday.com/2019/04/12/telephone-plays-the-songs-of-its-people/ | Telephone Plays The Songs Of Its People | Sven Gregori | [
"Arduino Hacks",
"Phone Hacks"
] | [
"adafruit",
"arduino",
"jukebox",
"mp3 player",
"music player",
"phone",
"telephone"
] | Music, food, and coding style have one thing in common: we all have our own preferences. On the other hand, there are arguably more people on this planet than there are varieties in any one of those categories, so we rarely fail to find like-minded folks sharing at least some of our taste. Well, in case your idea of a ... | 4 | 3 | [
{
"comment_id": "6131600",
"author": "drenehtsral",
"timestamp": "2019-04-13T03:04:46",
"content": "Come to that I bet it wouldn’t be too hard to make an Asterisk plug-in to look up callers by their caller ID and remember their hold music selection from the last time they called. (It could, whenever... | 1,760,373,967.701773 | ||
https://hackaday.com/2019/04/12/etch-a-snap-will-sketch-your-selfies/ | Etch-A-Snap Will Sketch Your Selfies | Lewin Day | [
"classic hacks"
] | [
"etch a sketch",
"etchasketch",
"pi zero",
"raspberry pi"
] | The Etch-a-Sketch was a hugely popular toy in the days before video games and the Internet became ubiquitous. These days, they’re a fun amusement, but can still be difficult to master. Rather than learn the necessary skills himself, [Martin Fitzpatrick] decided to build a machine to draw for him.
Enter the Etch-a-Snap.... | 9 | 5 | [
{
"comment_id": "6130954",
"author": "Hirudinea",
"timestamp": "2019-04-13T00:02:14",
"content": "Drawing on an etch-a-sketch, one more thing a machine can do better than me, still an impressive build though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "613... | 1,760,373,967.81441 | ||
https://hackaday.com/2019/04/12/building-an-rc-air-boat-from-garbage/ | Building An RC Air Boat From Garbage | Tom Nardi | [
"Arduino Hacks",
"Toy Hacks"
] | [
"air boat",
"boat",
"e-waste",
"remote control",
"upcycle"
] | What do you get when you combine an old optical drive, some empty soda bottles, and a microcontroller? Well…nothing, really. That’s still just a pile of rubbish. But if you add in a battery, an RC receiver, and some motors, you’re getting dangerously close to
a fun little toy to kick around the pond as [Antonio Rizzo] ... | 7 | 2 | [
{
"comment_id": "6130058",
"author": "deshipu",
"timestamp": "2019-04-12T20:04:45",
"content": "uChip is maybe not the greatest dev board out there, but it’s not nice to call it garbage/rubbish.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6130580",
"aut... | 1,760,373,967.657255 | ||
https://hackaday.com/2019/04/12/build-your-own-vacuum-chamber-for-degassing-and-more/ | Build Your Own Vacuum Chamber For Degassing And More | Lewin Day | [
"Tool Hacks"
] | [
"degassing",
"vacuum",
"vacuum chamber"
] | A vacuum chamber can be a useful thing to have around the shop. It can be used for all manner of purposes, from science experiments to degassing paints and epoxies. They’re not something you’d find in every workshop, but never fear –
you can always build one from scrap you’ve got lying around!
(YouTube video, embedded ... | 23 | 8 | [
{
"comment_id": "6130107",
"author": "SteveS",
"timestamp": "2019-04-12T20:20:15",
"content": "Helpful hint – don’t forget when you build these things that there’s a *lot* of air pressure trying to make this into something that looks more like a pizza box.For example, if you pull a modest 5psi vacuu... | 1,760,373,967.763566 | ||
https://hackaday.com/2019/04/12/ask-hackaday-experiences-with-capacitor-failure/ | Ask Hackaday: Experiences With Capacitor Failure | Brian Benchoff | [
"Ask Hackaday",
"Hackaday Columns",
"Slider"
] | [
"capacitor",
"capacitor plague"
] | Regular readers of Hackaday are intimately knowledgeable about old electronics, and whether it’s about that old oscilloscope sitting in the pile of other oscilloscopes, or the very rare vintage computer made in a Soviet bloc country, someone somewhere knows how to fix it. One of the biggest problems with these old elec... | 117 | 48 | [
{
"comment_id": "6129340",
"author": "midori oshii",
"timestamp": "2019-04-12T17:08:27",
"content": "So sad when a colleague got hold of an AppleLisa 1 only to find the capacitors blown on the boards. Still it looked great from the outside.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,968.124245 | ||
https://hackaday.com/2019/04/12/hackaday-podcast-014-keeping-raspberrys-sd-card-alive-we-love-mrrf-and-how-hot-are-flip-chips/ | Hackaday Podcast 014: Keeping Raspberry’s SD Card Alive, We Love MRRF, And How Hot Are Flip Chips? | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"555",
"Circuit Sculpture",
"flip-chip",
"guitar pedal",
"Hackaday Podcast",
"MRRF",
"Photogrammetry",
"Scotty Allen",
"sd card",
"Strange Parts"
] | Elliot Williams and Mike Szczys take a look at advances in photogrammetry (building 3D models out of many photographs from a regular camera), a delay pedal that’s both aesthetically and aurally pleasing, and the power of AI to identify garden slugs. Mike interviews Scotty Allen while walking the streets and stores of t... | 0 | 0 | [] | 1,760,373,967.955057 | ||
https://hackaday.com/2019/04/12/wifi-controlled-plane-is-cheap-flying-fun/ | WiFi Controlled Plane Is Cheap Flying Fun | Lewin Day | [
"classic hacks",
"Phone Hacks",
"Wireless Hacks"
] | [
"ESP8266",
"radio control",
"radio control plane",
"rc",
"wifi"
] | The world of radio controlled aircraft used to be an expensive and exclusive hobby, limited to those with the time and money to invest in difficult builds and pricey radio gear. More recently, the hobby has become more accessible, with cheap ready to fly planes available that can be flown in smaller spaces like suburba... | 17 | 10 | [
{
"comment_id": "6128955",
"author": "BillThePlatypus",
"timestamp": "2019-04-12T15:33:33",
"content": "This sort of thing is perfect for swarms.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6129227",
"author": "John Gallup",
"timestamp": "2019-04-12... | 1,760,373,968.172848 | ||
https://hackaday.com/2019/04/12/televox-the-pasts-robot-of-the-future/ | Televox: The Past’s Robot Of The Future | Al Williams | [
"Hackaday Columns",
"History",
"Robots Hacks",
"Slider"
] | [
"elektro",
"retrotechtactular",
"robot",
"smoking",
"sparko",
"televox",
"voice control"
] | When I read old books, I like to look for predictions of the future. Since we are living in that future, it is fun to see how they did. Case in point: I have a copy of “The New Wonder Book of Knowledge”, an anthology from 1941. This was the kind of book you wanted before there was a Wikipedia to read in your spare time... | 23 | 13 | [
{
"comment_id": "6128694",
"author": "Ostracus",
"timestamp": "2019-04-12T14:29:16",
"content": "“This was the kind of book you wanted before there was a Wikipedia to read in your spare time. There are articles about how coal is mined, how phonographs work, and the inner workings of a beehive. ”The ... | 1,760,373,968.374182 | ||
https://hackaday.com/2019/04/12/gardening-as-nature-intended-with-an-arduino/ | Gardening As Nature Intended, With An Arduino | Tom Nardi | [
"Arduino Hacks",
"green hacks"
] | [
"automatic gardening",
"gardening",
"germination",
"k-type thermocouple",
"max6675"
] | We’re not exactly what you’d call naturalists here at Hackaday, so to us, the idea that hot pepper seeds need to germinate in hot conditions sounds suspiciously like a joke. The sort of thing somebody might tell you right before they try to sell you an elevator pass, or cram you into a locker. But we don’t think
[Dean]... | 6 | 4 | [
{
"comment_id": "6128747",
"author": "Cory Potter",
"timestamp": "2019-04-12T14:41:33",
"content": "Nice work!I’ve been working on my grow system for nearly four years now. Check it out and maybe we can work together.https://hydromazing.com/about/",
"parent_id": null,
"depth": 1,
"repli... | 1,760,373,968.222583 | ||
https://hackaday.com/2019/04/12/cyphercon-badge-has-a-paper-tape-reader-built-in/ | Cyphercon Badge Has A Paper Tape Reader Built In | Mike Szczys | [
"cons"
] | [
"badge",
"badgelife",
"Cyphercon",
"tape reader"
] | Cyphercon 4.0
came to life in Milwaukee, Wisconsin on Thursday and the conference badge is a brilliant and engaging design. At first glance it looks like a fairly mundane rectangular badge. But a closer look reveals simplistic elegance wrapping around some clever mechanical design and the awesome interactive mechanism ... | 24 | 7 | [
{
"comment_id": "6127310",
"author": "Gregg Eshelman",
"timestamp": "2019-04-12T09:29:40",
"content": "Looks like it would be an ideal thing to mod to connect to an computer that’s missing a tape reader or has an unreliable or broken tape reader.",
"parent_id": null,
"depth": 1,
"replies... | 1,760,373,968.303513 | ||
https://hackaday.com/2019/04/11/a-simple-programmable-light-controller/ | A Simple Programmable Light Controller | Lewin Day | [
"home hacks"
] | [
"atmega8",
"IoT",
"light"
] | Everything’s internet connected these days, garage doors, baby monitors, and the kitchen sink are all hooked up. There are benefits to having everything online, but also several pitfalls. Maintaining security on a home network is an ongoing job, made more difficult by the number of devices that must be kept track of. S... | 5 | 2 | [
{
"comment_id": "6126328",
"author": "RÖB",
"timestamp": "2019-04-12T06:07:50",
"content": "I couldn’t see a LDR on the PCB or theschematicpictorial netlist.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6128287",
"author": "Shannon",
"times... | 1,760,373,968.414849 | ||
https://hackaday.com/2019/04/11/luxmeter-meets-linux/ | Luxmeter Meets Linux | Lewin Day | [
"classic hacks"
] | [
"light meter",
"lightmeter",
"luxmeter",
"python",
"serial"
] | Over the past 30 years the price of hardware has slowly but surely come down, and it’s now possible to buy all manner of widgets and gizmos online for less than the price of a fancy Italian dinner. By and large this is a good thing, but it’s not uncommon to find that your new tools are let down by the software side of ... | 1 | 1 | [
{
"comment_id": "6130869",
"author": "Kevin",
"timestamp": "2019-04-12T23:37:03",
"content": "Very kewl!Maybe a UV light meter would be possible.I know some Tin Type/wet plate collodion photographers could use one.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,373,968.717212 | ||
https://hackaday.com/2019/04/11/israels-moon-lander-crashed-and-thats-ok/ | Israel’s Moon Lander Crashed, And That’s OK | Tom Nardi | [
"News",
"Slider",
"Space"
] | [
"Beresheet",
"commercial space",
"crash",
"Israel",
"lunar lander",
"moon"
] | Some bittersweet news today as we get word that
Israel’s
Beresheet
spacecraft unfortunately crashed shortly before touchdown on the Moon
. According to telemetry received from the spacecraft right up until the final moments, the main engine failed to start during a critical braking burn which would have slowed the craf... | 108 | 26 | [
{
"comment_id": "6124337",
"author": "CRImier (Arsenijs)",
"timestamp": "2019-04-11T23:07:15",
"content": "Is there a link to the livestream recording somewhere?Sidenote – comments from WordPress are no longer possible?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comme... | 1,760,373,968.57203 | ||
https://hackaday.com/2019/04/11/esp32-alarm-clock-doesnt-skimp-on-the-features/ | ESP32 Alarm Clock Doesn’t Skimp On The Features | Tom Nardi | [
"clock hacks",
"Microcontrollers"
] | [
"alarm clock",
"BH150",
"clock",
"dht-11",
"ESP32",
"ILI9341",
"touch sensor"
] | The ESP family of microcontrollers is absolutely on fire right now, with a decent chunk of the projects that come our way now based on one of the impossibly cheap WiFi-enabled boards. In fact, they are so cheap and popular that we’ve started to see a somewhat unexpected trend; people have a tendency to use them as drop... | 11 | 7 | [
{
"comment_id": "6123589",
"author": "John Whitten",
"timestamp": "2019-04-11T20:27:18",
"content": ">> “despite the more modern boards being considerably more powerful than required”I think you could say that about a great deal of the projects these days ranging from Arduino’s and ESP’s to Raspberr... | 1,760,373,968.679309 | ||
https://hackaday.com/2019/04/11/this-bike-pump-now-sucks/ | This Bike Pump Now Sucks | Lewin Day | [
"Tool Hacks"
] | [
"vacuum",
"vacuum pump"
] | Pulling a vacuum is something every proud maker must do once in a while. Whether you’re degassing epoxy or vacuum forming parts, you’ll need a reliable pump to get the job done. [drcrash] has just the guide to help –
on how to convert a regular handpump to vacuum duty.
(Video embedded after the break.)
[drcrash] recomm... | 18 | 10 | [
{
"comment_id": "6123164",
"author": "kyle",
"timestamp": "2019-04-11T18:52:37",
"content": "as someone who works with turbo molecular pumps, please dont try to build one. the potential energy involved is hilariously dangerous. just think, the 1 inch thick steel walls are there for a reasonhttps://i... | 1,760,373,968.628099 | ||
https://hackaday.com/2019/04/11/the-50-ham-checking-out-the-local-repeater-scene/ | The $50 Ham: Checking Out The Local Repeater Scene | Dan Maloney | [
"Hackaday Columns",
"Original Art",
"Radio Hacks",
"Slider"
] | [
"amateur radio",
"duplexer",
"handy talkie",
"network",
"repeater",
"simplex",
"The $50 Ham",
"traffic"
] | So far in this series, we’ve covered the absolute basics of getting on the air as a radio amateur – getting licensed, and getting a transceiver. Both have been very low-cost exercises, at least in terms of wallet impact. Passing the test is only a matter of spending the time to study and perhaps shelling out a nominal ... | 24 | 12 | [
{
"comment_id": "6122757",
"author": "Chris",
"timestamp": "2019-04-11T17:15:40",
"content": "Read more from this series section needs updated with additional links. Each time I go to the first it says… ‘Last week…’ something, something.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,969.20073 | ||
https://hackaday.com/2019/04/11/implementing-qi-inductive-charging-yourself/ | Implementing Qi Inductive Charging Yourself | Jenny List | [
"hardware"
] | [
"attiny13",
"charger",
"inductive charger"
] | Inductive charging is a technology that has promised a lot, but hasn’t quite delivered on the promise of never needing to plug in your phone again. The technology behind it is surprisingly simple though, and [Vinod.S] takes us through it all with
an ATtiny13-based example
.
An inductive charger has to be clever in its ... | 21 | 11 | [
{
"comment_id": "6122589",
"author": "Pat Hartl",
"timestamp": "2019-04-11T16:28:52",
"content": "Something I’ve been curious about, would it be possible to have a Qi receiver coil etched onto a PCB? All of the DIY solutions I’ve seen use coils like the one in the video. I’m assuming it’s possible a... | 1,760,373,968.940976 | ||
https://hackaday.com/2019/04/11/flip-chips-and-sunken-ships-packaging-trick-for-faster-smaller-semiconductors/ | Flip Chips And Sunken Ships: Packaging Trick For Faster, Smaller Semiconductors | Ted Yapo | [
"Engineering",
"Featured",
"hardware",
"Slider"
] | [
"alpha particles",
"bga",
"flip-chip",
"ic",
"manufacturing",
"packaging",
"qfn",
"radioactive",
"radioactivity"
] | You may have heard the phrase “flip-chip” before: it’s a broad term referring to several integrated circuit packaging methods, the common thread being that the semiconductor die is flipped upside down so the active surface is closest to the PCB. As opposed to the more traditional method in which the IC is face-up and c... | 20 | 8 | [
{
"comment_id": "6122208",
"author": "some guy",
"timestamp": "2019-04-11T14:48:51",
"content": "This was an interesting read, i didn’t know that radioactivity was such a big problem for some packages.I have very mixed feelings about WLCSP and stuff like this. On the one hand you can make really sma... | 1,760,373,968.88747 | ||
https://hackaday.com/2019/04/11/a-bolt-on-i2c-navigation-key-for-your-next-project/ | A Bolt-On I2C Navigation Key For Your Next Project | Tom Nardi | [
"hardware",
"Parts"
] | [
"i2c",
"navigation",
"PIC16F18345",
"RGB LED",
"user interface"
] | We often talk about the advantages of modular hardware here at Hackaday; the ability to just order a few parts online, hook them up with some jumper wires, and move onto the software side of things is a monumental time saver when it comes to prototyping. So anytime we see a new module that’s going to save us time and a... | 10 | 7 | [
{
"comment_id": "6121172",
"author": "cookiez",
"timestamp": "2019-04-11T11:09:52",
"content": "“starting at 8$” are you confusing the shipping and product price?for 8$ id have bought 2 or 3, but getting one right now on tindie will set me back 26.50$ and thats over the “get one just to play with ev... | 1,760,373,969.130149 | ||
https://hackaday.com/2019/04/11/an-even-smaller-worlds-smallest-led-blinky/ | An Even Smaller World’s Smallest LED Blinky | Jenny List | [
"classic hacks"
] | [
"555",
"blinky",
"led"
] | Everything can be done with a 555. It’s a universal law, as all readers know. And a flashing light, you might think, will have been done before many times. But nobody has ever created a 555 flashing light as small as thie one created by [
TWires
], who has taken a TI LMC555 chip-scale packaged 555 and
dead-bugged a wor... | 14 | 8 | [
{
"comment_id": "6120770",
"author": "Gregg Eshelman",
"timestamp": "2019-04-11T09:57:45",
"content": "You want a real challenge? Build a 640×480 VGA full color LED display for cheap. At 1 cent per pixel that’s 3072 dollars. Even at 1/16th cent per pixel it’s still an annoyingly high price.",
"p... | 1,760,373,969.251307 | ||
https://hackaday.com/2019/04/10/custom-rotary-switch-takes-a-motor/ | Custom Rotary Switch Takes A Motor | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"magnet",
"reed switch",
"rotary switch"
] | There are certain challenges we all will have to face sooner or later. Changing a flat tire in the rain, trying to put on a shirt that doesn’t quite fit, or producing a 16 position rotary switch for a replica computer front panel. There was a time when something like this would be a major undertaking, but with the help... | 9 | 6 | [
{
"comment_id": "6119365",
"author": "Mike Massen",
"timestamp": "2019-04-11T05:15:39",
"content": "I really like the gentler haptic like feel of a motorised rotary switch so the little reed relay clicks would be nice too with just a little magnetic cogging too. Of course one could do most in softwa... | 1,760,373,969.298256 | ||
https://hackaday.com/2019/04/10/automated-tuning-of-linux-audio/ | Automated Tuning Of Linux Audio | Brian Benchoff | [
"Linux Hacks",
"Raspberry Pi"
] | [
"audio",
"linux",
"Linux audio",
"raspberry pi"
] | Audio systems in Linux are terrible. You’ve never known true pain until you’ve tried to set up a recording or broadcasting workstation running Linux. I did, twenty years ago, and nothing has changed since. This wasn’t really a problem when Linux was either used in server spaces or some nerd’s battle station, but now we... | 55 | 26 | [
{
"comment_id": "6118710",
"author": "kris",
"timestamp": "2019-04-11T02:48:25",
"content": "This…is really good news, thank you.I have a box here still running the last realtime kernel ubuntu studio, 9.04 I believe it is, have to look.Now if the drivers for my Delta44 were any good…",
"parent_i... | 1,760,373,969.390754 | ||
https://hackaday.com/2019/04/10/findybot3000-is-listening-and-ready-to-help/ | FindyBot3000 Is Listening And Ready To Help | Lewin Day | [
"classic hacks"
] | [
"parts storage",
"storage",
"voice control"
] | It’s a problem every maker faces at one time or other – how to organise the ever-growing mass of components in the workshop. Some give up and just live with box upon box of disordered parts.
That wasn’t good enough for [Inventor22], though – who created FindyBot3000 to tackle the job.
The first step is to source a set ... | 16 | 10 | [
{
"comment_id": "6118041",
"author": "Electra",
"timestamp": "2019-04-11T00:21:50",
"content": "Component drawers that /you/ may love.. I’ve gotten rid of all of mine and I’m happier for it.Take away containers for big and fishing style boxes for small.That being said, it’s a very interesting and cl... | 1,760,373,969.498143 | ||
https://hackaday.com/2019/04/09/graphene-is-so-yesterday-meet-borophene/ | Graphene Is So Yesterday — Meet Borophene | Al Williams | [
"Science"
] | [
"borophene",
"Chemistry",
"graphene"
] | It wasn’t long ago that graphene seemed to take the science and engineering communities by storm. You can make bits of it with a pencil and some sticky tape, yet it had all sorts of wonderful properties. The key, of course, is that it is a single layer of atoms. Now scientists have done the same trick with boron to for... | 39 | 13 | [
{
"comment_id": "6113513",
"author": "Nigel",
"timestamp": "2019-04-10T02:20:18",
"content": "Tangible uses?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6113515",
"author": "Vinalon",
"timestamp": "2019-04-10T02:20:38",
"content": "Please, oh pl... | 1,760,373,969.57709 | ||
https://hackaday.com/2019/04/09/making-a-birthday-party-magical-with-smart-wands/ | Making A Birthday Party Magical With Smart Wands | Tom Nardi | [
"hardware",
"Raspberry Pi",
"Toy Hacks"
] | [
"home automation",
"ir camera",
"magic wand",
"NoIR",
"open cv",
"Raspberry Pi Zero",
"reflector"
] | Visitors to the
Wizarding World of Harry Potter
at Universal Studios are able to cast “spells” by waving special interactive wands in the air. Hackers like us understand that there must be some unknown machinations happening behind the scenes to detect how the wands are moving, but for the kids wielding them, it might ... | 11 | 6 | [
{
"comment_id": "6112839",
"author": "Mike",
"timestamp": "2019-04-09T23:19:35",
"content": "Isolating IRThe old fashioned method of detecting IR and not visible light, is to put a piece of exposed film negative in front of the camera’s sensor.Would this be a worthwhile simplification by removing th... | 1,760,373,969.44782 | ||
https://hackaday.com/2019/04/09/the-display-for-when-you-want-nixies-without-all-the-hassle/ | The Display For When You Want Nixies Without All The Hassle | Brian Benchoff | [
"LED Hacks"
] | [
"edge lighting",
"edge-lit",
"Lixie",
"nixie"
] | If you want to display numbers, just go for Nixies. There’s no better way to do that job, simply because they look so cool. Unfortunately, Nixies require high voltages, controlling them is a tiny bit strange, and they suck down a lot of power. These facts have given us a few Nixie alternatives, and [Dave] is here with ... | 20 | 7 | [
{
"comment_id": "6112516",
"author": "Severe Tire Damage",
"timestamp": "2019-04-09T21:02:06",
"content": "Looking cool is just one of many metrics. Making “looking cool” your most important metric leads to all kinds of unfortunate decisions, especially in life when people become outrageous phonies... | 1,760,373,969.641046 | ||
https://hackaday.com/2019/04/09/flex-pcbs-make-force-mapping-pressure-sensor-for-amputee/ | Flex PCBs Make Force-Mapping Pressure Sensor For Amputee | Dan Maloney | [
"contests",
"Misc Hacks"
] | [
"amputee",
"flexible circuit board",
"matrix",
"multiplexer",
"pic",
"piezoresistive",
"prosthetic",
"sensor",
"shift register",
"transducer",
"velostat"
] | What prosthetic limbs can do these days is nothing short of miraculous, and can change the life of an amputee in so many ways. But no matter what advanced sensors and actuators are added to the prosthetic, it has to interface with the wearer’s body, and that can lead to problems.
Measuring and mapping the pressure on t... | 1 | 1 | [
{
"comment_id": "6118119",
"author": "positivecommentaday",
"timestamp": "2019-04-11T00:40:58",
"content": "I want to try this! Is this basically what the Sensel Morph (high resolution pressure sensitive tablet) uses?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,373,969.746276 | ||
https://hackaday.com/2019/04/09/transcending-the-stack-with-the-right-network-protocol/ | Transcending The Stack With The Right Network Protocol | Maya Posch | [
"Hackaday Columns",
"home hacks",
"Network Hacks",
"Wireless Hacks"
] | [
"home automation",
"mqtt",
"NodeMCU",
"security",
"tls"
] | The increase in network-connected devices the past years has been something of a dual-edged sword. While on one hand it’s really nice to have an easy and straight-forward method to have devices talk with each other, this also comes with a whole host of complications, mostly related to reliability and security.
With WiF... | 14 | 10 | [
{
"comment_id": "6111951",
"author": "Kevin Kessler",
"timestamp": "2019-04-09T17:27:04",
"content": "I recommend anyone looking to secure MQTT traffic on an ESP32 or 8266 look at PreShared Keys. They are more straightforward to implement, and are probably good enough for what we do. If you aren’t g... | 1,760,373,970.051456 | ||
https://hackaday.com/2019/04/09/nearly-entirely-3d-printed-rc-car-is-4wd-fun/ | Nearly Entirely 3D Printed RC Car Is 4WD Fun | Lewin Day | [
"3d Printer hacks"
] | [
"R/C car",
"radio control"
] | Remote control cars can be great fun, particularly if you’ve got a spare carpark or dirt lot to hoon them around. Any good hobby store will have shelves stocked with all manner of vehicles – buggies, touring cars, prototypes – but you don’t have to settle for what’s already available.
Why not 3D print the car of your d... | 16 | 9 | [
{
"comment_id": "6111808",
"author": "Greg A",
"timestamp": "2019-04-09T16:30:51",
"content": "huh i had an rc car project that turned out to be not very fun because i needed to gear the motors down…despite using some 3d printed parts, i didn’t try to 3d print a reduction gearbox because i assumed i... | 1,760,373,970.107084 | ||
https://hackaday.com/2019/04/09/humanity-creates-a-cloud-of-space-garbage-again/ | Humanity Creates A Cloud Of Space Garbage, Again | Tom Nardi | [
"Current Events",
"Featured",
"Original Art",
"Slider",
"Space"
] | [
"ASAT",
"ballistic missile",
"ICBM",
"ISRO",
"low earth orbit",
"nasa",
"satellite",
"space junk",
"star wars"
] | With the destruction of the Microsat-R reconnaissance satellite on March 27th, India became the fourth country in history to successfully hit an orbiting satellite with a surface-launched weapon. While Microsat-R was indeed a military satellite, there was no hostile intent; the spacecraft was one of India’s own, launch... | 75 | 17 | [
{
"comment_id": "6111471",
"author": "Miroslav",
"timestamp": "2019-04-09T14:25:53",
"content": "Destroying one satellite in predictable orbit and destroying hundreds of ICBMs and decoys on a short notice are completely different things.Let us hope that nobody is ever crazy enough to press the red b... | 1,760,373,971.019332 | ||
https://hackaday.com/2019/04/10/windows-3-1-in-my-bios-its-more-likely-than-you-think/ | Windows 3.1 In My BIOS? It’s More Likely Than You Think | Tom Nardi | [
"classic hacks",
"computer hacks"
] | [
"bios",
"coreboot",
"eeprom",
"firmware",
"libreboot",
"thinkpad",
"windows 3.1"
] | It might be difficult for modern audiences to believe, but at one point Microsoft Windows fit on floppy disks. This was a simpler time, with smaller hard drives, lower resolution displays, and no hacker blogs for you to leave pessimistic comments on. A nearly unrecognizable era, to be sure. But if you’re one of the peo... | 66 | 29 | [
{
"comment_id": "6116897",
"author": "Steven",
"timestamp": "2019-04-10T20:07:25",
"content": "Why not, Tandy put DOS and part of DeskMate in ROM on the 1000HX back in the ’90’s.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6117781",
"author": "Dai... | 1,760,373,970.908848 | ||
https://hackaday.com/2019/04/10/interactive-demo-shows-the-power-of-fourier-transforms/ | Interactive Demo Shows The Power Of Fourier Transforms | Dan Maloney | [
"internet hacks",
"News",
"Software Hacks"
] | [
"decomposition",
"encoding",
"epicycles",
"Fourier",
"fourier series",
"fourier transform",
"JPEG",
"MPEG",
"sine",
"svg"
] | When it comes to mathematics, the average person can probably get through most of life well enough with just basic algebra. Some simple statistical concepts would be helpful, and a little calculus couldn’t hurt. But that leaves out a lot of interesting mathematical concepts that really do have applications in everyday ... | 14 | 11 | [
{
"comment_id": "6117079",
"author": "JCope",
"timestamp": "2019-04-10T20:48:21",
"content": "Coolest visualization of the Fourier I have seen- kudos for open sourcing the site too",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6117935",
"author": "O... | 1,760,373,970.212486 | ||
https://hackaday.com/2019/04/10/blacksmithing-for-the-uninitiated-lets-talk-about-anvils/ | Blacksmithing For The Uninitiated: Let’s Talk About Anvils | Jenny List | [
"Hackaday Columns",
"how-to",
"Skills"
] | [
"anvil",
"blacksmith",
"blacksmithing",
"Blacksmithing for the Uninitiated",
"forge",
"forge work",
"metalwork"
] | When you grow up with something as the constant backdrop to your life, it’s easy to forget as an adult that not everyone else shares your instinctive knowledge of the subject. My dad is a blacksmith, he’s now retired, but as I was growing up his very active forge was in a workshop next to our house. This is the second ... | 29 | 9 | [
{
"comment_id": "6116588",
"author": "Ren",
"timestamp": "2019-04-10T17:38:48",
"content": "I’ve seen on rare occasion, a piece that fits in the Hardie hole, it has a sharp edge on top to aid cutting hot metal.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "... | 1,760,373,971.091273 | ||
https://hackaday.com/2019/04/10/quick-and-dirty-immobilizer-hack-lets-you-use-cheaper-dumb-keys/ | Quick And Dirty Immobilizer Hack Lets You Use Cheaper Dumb Keys | Lewin Day | [
"car hacks"
] | [
"car",
"car hack",
"immobilizer",
"key"
] | Car enthusiasts can find themselves in a pickle if they’re into cars from the 80s and 90s. These vehicles are much beloved by some, but one can find themselves having to fork out immense amounts of money for repairs and out-of-production parts. Once a car passes that 15 year milestone, suddenly manufacturer support can... | 34 | 11 | [
{
"comment_id": "6116211",
"author": "Luke",
"timestamp": "2019-04-10T15:50:34",
"content": "why not just tape the key inside the steering column?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6116286",
"author": "nsayer",
"timestamp": "2019... | 1,760,373,970.620731 | ||
https://hackaday.com/2019/04/10/see-whats-inside-night-vision-and-how-to-build-your-own/ | See What’s Inside Night Vision, And How To Build Your Own | Donald Papp | [
"how-to",
"Parts"
] | [
"image intensifier",
"night vision",
"NVG",
"parts kit",
"PVS-14"
] | [Nick Chen] shared some fascinating and useful details about
building a AN/PVS-14 monocular night vision device from parts
. It’s not cheap, but the build would be a simple one for most Hackaday readers, at least the ones who are residents of the USA. Since the PVS-14 is export controlled under the International Traffi... | 26 | 10 | [
{
"comment_id": "6115629",
"author": "quarterturn",
"timestamp": "2019-04-10T12:26:37",
"content": "There’s starlight-capable color sensors now:https://youtu.be/Mj-cyyuV0ck",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6116017",
"author": "Dodo",
... | 1,760,373,970.5515 | ||
https://hackaday.com/2019/04/10/this-is-the-delay-pedal-you-can-build-yourself/ | This Is The Delay Pedal You Can Build Yourself | Brian Benchoff | [
"Musical Hacks"
] | [
"guitar",
"guitar pedal",
"modular synth",
"pedal"
] | If you’re looking to make money in electronics, there’s no better market than guitar pedals and modular synths. The margins are high, and all the consumers are otakus who will spend outrageous amounts of money chasing the next big thing. The products are just one step above audiophile wank with zero oxygen cables, and ... | 33 | 9 | [
{
"comment_id": "6114914",
"author": "NFM",
"timestamp": "2019-04-10T08:52:09",
"content": "Should call it the TARDIS, wibbly-wobbly, timey-wimey and all that.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6118673",
"author": "tim taylor",
"... | 1,760,373,973.1537 | ||
https://hackaday.com/2019/04/09/interface-your-c64-with-arduinos-through-firmata/ | Interface Your C64 With Arduinos Through Firmata | Lewin Day | [
"Retrocomputing"
] | [
"arduino",
"c64",
"commodore 64",
"firmata"
] | Microcontrollers are cool, but sometimes the user interface options they can deliver are disappointing. The platform in question may not have the horsepower required to drive a decent screen, and often a web interface is undesirable for security or complexity reasons. Sometimes you just need a good software interface b... | 13 | 7 | [
{
"comment_id": "6114299",
"author": "Jan",
"timestamp": "2019-04-10T05:42:27",
"content": "Great project. Though for maximum safety a set of optocoupler could be of added in the serial line. I love the fact that the Arduino acts as a multipurpose io-co-processor. Fun project.",
"parent_id": nul... | 1,760,373,973.083733 | ||
https://hackaday.com/2019/04/09/portable-pi-power-pack-makes-for-petite-projects/ | Portable Pi Power Pack Makes For Petite Projects | Brian Benchoff | [
"Raspberry Pi"
] | [
"2019 Hackaday Prize",
"battery",
"battery pack",
"Pi",
"pi zero",
"raspberry pi",
"Raspberry Pi Zero"
] | Since the Pi Zero was released, there have been many attempts to add a power bank. Cell phone batteries are about the same size as a Pi Zero, after all, and adding a USB charging port and soldering a few wires to a Pi is easy.
The PiSugar
is perhaps the cutest battery pack we’ve seen for the Pi Zero, and it comes in a ... | 24 | 14 | [
{
"comment_id": "6111061",
"author": "Roland Mitterbauer (@AutrionInteract)",
"timestamp": "2019-04-09T11:42:42",
"content": "Are there any sources or a distributor?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6111199",
"author": "Louis-Philippe",
"... | 1,760,373,973.217119 | ||
https://hackaday.com/2019/04/09/arduino-drives-seventeen-stepper-motors-carefully/ | Arduino Drives Seventeen Stepper Motors, Carefully | Tom Nardi | [
"Arduino Hacks",
"Robots Hacks"
] | [
"28BYJ-48",
"arduino mega",
"motor driver",
"NEMA17",
"stepper motor"
] | It’s fair to say that building electronic gadgets is easier now than it ever has been in the past. With low-cost modular components, there’s often just a couple dozen lines of code and a few jumper wires standing between your idea and a functioning prototype. Driving stepper motors is a perfect example: you can grab a ... | 27 | 5 | [
{
"comment_id": "6110513",
"author": "Andy Pugh",
"timestamp": "2019-04-09T09:30:51",
"content": "Whilst no extra hardware at all is attractive, at £0.51 (60 cents?) per chip (£0.25 per motor) the ULN2803 will drive steppers at up to 50V / 500mA in Unipolar mode at very little cost. (and avoids the ... | 1,760,373,973.549662 | ||
https://hackaday.com/2019/04/08/wireless-controllers-for-retro-gaming/ | Wireless Controllers For Retro Gaming | Bryan Cockfield | [
"Retrocomputing"
] | [
"arduino",
"bluetooth",
"commodore 64",
"controller",
"retro",
"video game",
"wireless"
] | There’s no limit to the amount of nostalgia that can be minted through various classic platforms such as the NES classic. The old titles are still extremely popular, and putting them in a modern package makes them even more accessible. On the other hand, if you still have the original hardware things can start getting ... | 5 | 2 | [
{
"comment_id": "6108957",
"author": "HC",
"timestamp": "2019-04-09T05:21:06",
"content": "Adding bluetooth controller to C64: Neat!Rolling your own controller so you can use accelerometer controls instead of joysticks: Dumb, both because using motion controls on a C64 game is dumb and because eve... | 1,760,373,973.03295 | ||
https://hackaday.com/2019/04/08/a-laser-cutting-101/ | A Laser Cutting 101 | Al Williams | [
"cnc hacks"
] | [
"cnc",
"laser cutter",
"lasers"
] | If you’ve worked with a laser cutter before, you might not find much new in [Maker Design Lab’s] recent post about getting started. But if you haven’t, you’ll find
a lot of practical advice
and clean clear figures. The write up focuses on a tube-style laser cutter that uses a gas-filled tube and mirrors. Some cheap cut... | 22 | 9 | [
{
"comment_id": "6107693",
"author": "Tim Trzepacz",
"timestamp": "2019-04-09T02:22:17",
"content": "There is also this presentation I did as a “flash-talk” at a Hackaday meetup some months back…https://docs.google.com/presentation/d/1WCq4rAR3zPbw5R1GcrN8aslMZi9U1oOzDaCyLObHsKI/edit?usp=sharingWhen ... | 1,760,373,973.27209 | ||
https://hackaday.com/2019/04/08/reproducing-vintage-plastic-parts-in-top-notch-quality/ | Reproducing Vintage Plastic Parts In Top-Notch Quality | Lewin Day | [
"classic hacks"
] | [
"neve",
"repair",
"resin",
"resin casting",
"silicone",
"silicone mold"
] | Plastic is a highly useful material, but one that can also be a pain as it ages. Owners of vintage equipment the world over are suffering, as knobs break off, bezels get cracked and parts warp, discolor and fail. Oftentimes, the strategy has been to rob good parts from other broken hardware and cross your fingers that ... | 16 | 8 | [
{
"comment_id": "6107051",
"author": "Saabman",
"timestamp": "2019-04-09T00:46:40",
"content": "That’s something I’d like to find time to have a go at making molds and casting – I love the clear stuff that to me just looks magical.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,373,973.383258 | ||
https://hackaday.com/2019/04/08/duck-and-cover-with-this-wifi-geiger-counter/ | Duck And Cover With This WiFi “Geiger Counter” | Tom Nardi | [
"Microcontrollers",
"Wireless Hacks"
] | [
"buzzer",
"ESP8266",
"geiger counter",
"received signal strength indicator",
"RSSI"
] | There’s perhaps no sound more recognizable than the frantic clicking of a Geiger counter. Not because this is some post-apocalyptic world in which everyone is personally acquainted with the operation of said devices, but because it’s such a common effect used in many movies, TV shows, and video games. If somebody hears... | 10 | 6 | [
{
"comment_id": "6105546",
"author": "Ken (AC3DH)",
"timestamp": "2019-04-08T20:35:35",
"content": "Could be very useful finding unauthorized WiFi.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6111382",
"author": "UUDECODE",
"timestamp": "2... | 1,760,373,973.324524 | ||
https://hackaday.com/2019/04/08/metal-3d-printing-a-dose-of-reality/ | Metal 3D Printing — A Dose Of Reality | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"laser",
"metal",
"selective laser melting",
"sls"
] | We have no doubt that hundreds of times a day a hacker is watching a 3D printer spew hot plastic and fantasizes about being able to print directly using metal. While metal printers are more common than ever, they are still out of reach for most people printing as a hobby. But as Mr. Spock once observed: “…you may find ... | 19 | 8 | [
{
"comment_id": "6104831",
"author": "Nicolas Raynaud",
"timestamp": "2019-04-08T18:44:48",
"content": "I completely missed the boat here, why do you need support in a bed of powder?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6104956",
"author": ... | 1,760,373,973.482974 | ||
https://hackaday.com/2019/04/15/random-word-pairings-mark-the-time-on-this-unusual-clock/ | Random Word Pairings Mark The Time On This Unusual Clock | Dan Maloney | [
"clock hacks"
] | [
"led",
"PICAXE",
"prng",
"seven segment",
"word clock"
] | Gosh, the fun we had when digital calculators became affordable enough that mere grade school students could bring one to class. The discovery that the numbers could be construed as the letters of various dirty words when viewed upside down was the source of endless mirth. They were simpler times.
This four-letter-word... | 4 | 3 | [
{
"comment_id": "6142884",
"author": "Hirudinea",
"timestamp": "2019-04-16T01:30:58",
"content": "Well it makes absolutly no sense but it would make a great prop on a cheap sci-fi show.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6142927",
"author": "re... | 1,760,373,973.42611 | ||
https://hackaday.com/2019/04/15/flexible-pcb-contest-round-up/ | Flexible PCB Contest Round Up | Dan Maloney | [
"contests"
] | [
"actuator",
"coils",
"digikey",
"flex board",
"Flexible PCB Contest",
"Kapton",
"osh park",
"POV",
"sensor",
"wearable"
] | The 2019 Hackaday Prize, which was announced last week, is very much on everyone’s mind, so much so that we’ve already gotten a great response with a lot of really promising early entries. As much as we love that, the Prize isn’t the only show in town, and we’d be remiss to not call attention to our other ongoing conte... | 19 | 5 | [
{
"comment_id": "6142840",
"author": "YGDES",
"timestamp": "2019-04-15T20:09:52",
"content": "I have an old “idea”, in fact a large project that requires flex PCB.A lot.So much it’s not economically reasonable :-(",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id"... | 1,760,373,974.226219 | ||
https://hackaday.com/2019/04/15/undertale-pinball-machine-is-a-work-of-art/ | Undertale Pinball Machine Is A Work Of Art | Lewin Day | [
"classic hacks"
] | [
"pinball",
"undertale"
] | Undertale
came out in 2015 and took the world by storm. With a heartwrenching story, compelling characters and a soulful soundtrack, it won legions of fans and became an indie gaming legend.
Years later, [Gornkleschnitzer] decided to begin a pinball machine build, and it became a tribute of epic proportions.
No expens... | 5 | 4 | [
{
"comment_id": "6142820",
"author": "Gornkleschnitzer",
"timestamp": "2019-04-15T18:55:53",
"content": "It is so awesome to see this posted! I was actually going to drop you a tip on this myself, but apparently it went viral enough that I didn’t have to!Definitely check out that Pinside link if yo... | 1,760,373,974.066223 | ||
https://hackaday.com/2019/04/15/nanoparticles-make-mega-difference-for-unweldable-aluminum/ | Nanoparticles Make Mega Difference For “Unweldable” Aluminum | Kristina Panos | [
"chemistry hacks",
"Engineering",
"Featured"
] | [
"aluminium",
"arc welding",
"filler rod",
"nanoparticles",
"TIG welding",
"welding"
] | Though much of it is hidden from view, welding is a vital part of society. It’s the glue that holds together the framework of the cars we drive, the buildings we occupy, the appliances we use, and the heavy machinery that keeps us moving forward. Every year, the tireless search continues for stronger and lighter materi... | 62 | 20 | [
{
"comment_id": "6142787",
"author": "Nick",
"timestamp": "2019-04-15T17:34:13",
"content": "How are we defining “consumable” here? “TIG (tungsten inert gas) welding uses a non-consumable tungsten electrode situated inside a torch.”",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,974.934714 | ||
https://hackaday.com/2019/04/15/2019-hackaday-prize-hack-chat/ | 2019 Hackaday Prize Hack Chat | Dan Maloney | [
"Hackaday Columns",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"design for manufacturing",
"dfm",
"Hack Chat",
"prize",
"product",
"prototype"
] | Join us Wednesday, April 17 at noon Pacific time for
the 2019 Hackaday Prize Hack Chat
!
The
2019 Hackaday Prize was just announced
, and this year the theme is designing for manufacturing. The hacker community has come a long, long way in the last few years in terms of the quality of projects we turn out. Things that ... | 5 | 3 | [
{
"comment_id": "6142763",
"author": "CRImier",
"timestamp": "2019-04-15T16:13:25",
"content": "Yay, can’t wait to learn more about this year’s Prize!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6142974",
"author": "Airflyte",
"timestamp": "2019-04-... | 1,760,373,974.592032 | ||
https://hackaday.com/2019/04/15/home-brew-cnc-router-mills-a-wooden-mouse/ | Home-Brew CNC Router Mills A Wooden Mouse | Dan Maloney | [
"cnc hacks"
] | [
"cnc",
"mouse",
"oak",
"optical",
"scroll wheel",
"wood"
] | First off, we’ll admit that there no real practical reason for wanting
a wooden mouse
– unless of course the cellulose rodent in question is the one that kicked it all off in
“The Mother of All Demos”
fifty years ago. Simply putting a shell around the guts of a standard wireless optical mouse is just flexing, but we’re... | 19 | 9 | [
{
"comment_id": "6142707",
"author": "Ren",
"timestamp": "2019-04-15T15:43:43",
"content": "Nice work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6142765",
"author": "bob",
"timestamp": "2019-04-15T16:16:25",
"content": "The cheap bamboo mice t... | 1,760,373,974.826165 | ||
https://hackaday.com/2019/04/15/teardown-nihon-kenko-magnetic-wave-tester/ | Teardown: Nihon Kenko Magnetic Wave Tester | Tom Nardi | [
"Hackaday Columns",
"Teardown"
] | [
"electromagnetic waves",
"emf",
"emf meter",
"ghost hunting",
"paranormal",
"teardown"
] | You never know what kind of wonders you’ll find on eBay, especially when you have a bunch of alerts configured to go off when weird electronic devices pop up. You may even find yourself bidding on something despite not being entirely sure what it is. Perhaps you’re a collector of unusual gadgets, or maybe it’s because ... | 35 | 20 | [
{
"comment_id": "6142505",
"author": "RW ver 0.0.1",
"timestamp": "2019-04-15T14:15:23",
"content": "Is it maybe just an enigmatically named microwave oven leakage detector?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6142606",
"author": "MIKE",
... | 1,760,373,975.17673 | ||
https://hackaday.com/2019/04/08/the-3d-printing-dream-is-still-alive-at-2019s-midwest-reprap-festival/ | The 3D Printing Dream Is Still Alive At 2019’s Midwest RepRap Festival | Sonya Vasquez | [
"3d Printer hacks",
"cons",
"Hackaday Columns",
"News",
"Slider"
] | [
"3d printing",
"convention",
"innovation",
"MRRF 2019"
] | 3D Printers have been in the hands of hackers for well over ten years, but the dream is far from over and certainly not overslept. This year’s Midwest RepRap Festival is a testament to the still-growing excitement, and world where 3D printing is alive and kicking on the next level.
This past weekend, I took up my frien... | 8 | 6 | [
{
"comment_id": "6104310",
"author": "cncFriend",
"timestamp": "2019-04-08T17:23:36",
"content": "I love the printers brought in on artists palettes, though the ones brought in on a pallet are usually sturdier :)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id":... | 1,760,373,974.715179 | ||
https://hackaday.com/2019/04/08/autodesk-fusion-360-hack-chat/ | Autodesk Fusion 360 Hack Chat | Dan Maloney | [
"Hackaday Columns"
] | [
"autodesk",
"cad",
"cam",
"cnc",
"design",
"eagle",
"Fusion 360",
"Hack Chat",
"tinkercad"
] | Join us Wednesday at noon Pacific time for the
Autodesk Fusion 360 Hack Chat
!
Most of us have a collection of tools that we use for the various mechanical, electronic, and manufacturing tasks we face daily. But if you were asked to name one tool that stretches across all these spaces, Autodesk Fusion 360 would certain... | 20 | 4 | [
{
"comment_id": "6106141",
"author": "doug",
"timestamp": "2019-04-08T22:08:16",
"content": "How about Fusion 360 installing on Linux via WINE without having to decompose the install code, hack the python version and rebuild the installer besides the other hacks needed to get it working?And stop tel... | 1,760,373,974.655367 | ||
https://hackaday.com/2019/04/08/vintage-print-processor-fixed-with-3d-printing/ | Vintage Print Processor Fixed With 3D Printing | Tom Nardi | [
"Parts",
"Repair Hacks"
] | [
"3d modeling",
"darkroom",
"gear",
"modeling",
"photography",
"replacement parts"
] | If you don’t know what a print processor is, don’t feel bad. There’s precious few people out there still running home darkrooms, and the equipment used for DIY film development is about as niche as it gets today. For those looking to put together their own darkroom in 2019, buying second hand hardware and figuring out ... | 13 | 3 | [
{
"comment_id": "6103688",
"author": "Eric Adamson",
"timestamp": "2019-04-08T15:51:17",
"content": "I can appreciate that Cinema 4D would not be your first choice for animating, but suspect readers might better appreciate knowing what that first choice actually would be. Why so secretive?",
"pa... | 1,760,373,974.540658 | ||
https://hackaday.com/2019/04/08/brain-hacking-with-entrainment/ | Brain Hacking With Entrainment | Al Williams | [
"Featured",
"Interest",
"Medical Hacks",
"Original Art",
"Slider"
] | [
"brain",
"citizen science",
"eeg",
"entrainment",
"hackaday.io"
] | Can you electronically enhance your brain? I’m not talking about surgically turning into a Borg. But are there electronic methods that can improve various functions of your brain? Fans of brainwave entrainment say yes.
There was an old recruiting ad for electrical engineers that started with the headline: The best elec... | 16 | 10 | [
{
"comment_id": "6103309",
"author": "m1t0s1s",
"timestamp": "2019-04-08T14:56:14",
"content": "Fyi isochronic.io is the home for the best Android app for these kind of frequencies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6103942",
"author": "Sheldo... | 1,760,373,974.773855 | ||
https://hackaday.com/2019/04/08/give-your-raspberry-pi-sd-card-a-break-log-to-ram/ | Give Your Raspberry Pi SD Card A Break: Log To RAM | Dan Maloney | [
"Linux Hacks",
"Raspberry Pi"
] | [
"/var/log",
"cron",
"flash",
"linux",
"logging",
"mount",
"ram",
"raspberry pi",
"sd card",
"shell script",
"wear-leveling"
] | The fragility of SD cards is the weak link in the Raspberry Pi ecosystem. Most of us seem to have at least one Pi tucked away somewhere, running a Magic Mirror, driving security cameras, or even taking care of a media library. But chances are, that Pi is writing lots and lots of log files. Logging is good — it helps wh... | 82 | 36 | [
{
"comment_id": "6101693",
"author": "paul",
"timestamp": "2019-04-08T11:13:48",
"content": "SD cards are cheap.A partial solution is to clone the SD card, and put the cloned card to your credit card sized computer with a piece of tape. (I have BBB & Cubies, thinking about Hardkernel boards( which h... | 1,760,373,975.0498 | ||
https://hackaday.com/2019/04/08/fooling-fingerprint-scanners-with-a-resin-printer/ | Fooling Fingerprint Scanners With A Resin Printer | Lewin Day | [
"3d Printer hacks",
"Security Hacks"
] | [
"fingerprint",
"fingerprint faking",
"fingerprint sensor",
"Galaxy S10",
"resin printer",
"sla"
] | Biometrics have often been used as a form of access control. While this was initially limited to bank vaults in Hollywood movies, it’s now common to see such features on many laptops and smartphones. Despite the laundry list of reasons why this is a bad idea, the technology continues to grow in popularity. [darkshark] ... | 12 | 5 | [
{
"comment_id": "6100778",
"author": "Andy Pugh",
"timestamp": "2019-04-08T09:07:15",
"content": "It’s a good thing I have an Apple with FaceID. There is no way that anyone could take several photos of my face in a public place and use the photogrammetry techniques mentioned on Hackaday today to ma... | 1,760,373,975.102173 | ||
https://hackaday.com/2019/04/07/get-great-3d-scans-with-open-photogrammetry/ | Get Great 3D Scans With Open Photogrammetry | Elliot Williams | [
"3d Printer hacks"
] | [
"3d",
"3d printing",
"3d scanning",
"Photogrammetry"
] | Not long ago, photogrammetry — the process of stitching multiple photographs taken from different angles into a 3D whole — was hard stuff. Nowadays, it’s easy. [Mikolas Zuza] over at Prusa Printers, has a
guide showing off cutting edge open-source software
that’s not only more powerful, but also easier to use. They’ve ... | 24 | 9 | [
{
"comment_id": "6099706",
"author": "Vega 64",
"timestamp": "2019-04-08T06:41:21",
"content": "Open source…. Needs CUDA to work.Well that’s just tremendous.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6131158",
"author": "jack324",
"times... | 1,760,373,975.316313 | ||
https://hackaday.com/2019/04/06/make-your-own-midi-controller-with-an-arduino/ | Make Your Own MIDI Controller With An Arduino | Brian Benchoff | [
"Arduino Hacks",
"Musical Hacks"
] | [
"arduino",
"laser cutter",
"midi",
"pcb"
] | Engineers create something out of nothing, and no where is this more apparent than in the creation of customized computer hardware. To make a simple MIDI controller, you need knowledge of firmware design and computer architecture, you need knowledge of mechanical design, and you need to know electronic design. And then... | 10 | 6 | [
{
"comment_id": "6088074",
"author": "Daren Schwenke",
"timestamp": "2019-04-07T05:17:40",
"content": "I will have to politely disagree. This is not a midi controller in hardware or software.This is a nice build of a box and an explanation of the serial to midi software package he used:http://proje... | 1,760,373,975.676372 | ||
https://hackaday.com/2019/04/06/gliding-back-home-from-60000ft/ | Gliding Back Home From 60,000ft | Lewin Day | [
"drone hacks"
] | [
"ardupilot",
"flight",
"glider",
"plane"
] | If you want to play around with high altitudes, weather balloons are the way to go. With a bit of latex and some helium, it’s possible to scrape up against the edge of space without having to start your own rocketry program. [Blake] was interested in doing just this,
and decided to build a near space glider which could... | 21 | 10 | [
{
"comment_id": "6087222",
"author": "Kvg",
"timestamp": "2019-04-07T03:18:27",
"content": "Cool!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6087795",
"author": "Better Automations",
"timestamp": "2019-04-07T04:36:30",
"content": "Looks like th... | 1,760,373,975.446136 | ||
https://hackaday.com/2019/04/06/hexagons-the-crazy-new-breadboard/ | Hexagons – The Crazy New Breadboard | Bryan Cockfield | [
"Tool Hacks"
] | [
"breadboard",
"circuit",
"hexagon",
"prototyping",
"tessellation",
"tool"
] | A breadboard is a great prototyping tool for verifying the sanity of a circuit design before taking the painstaking effort of soldering it all together permanently. After all, a mistake in this stage can cost a lot of time and possibly material, so it’s important to get it right. [daverowntree] wasn’t fully satisfied w... | 11 | 6 | [
{
"comment_id": "6085605",
"author": "NoseyNick",
"timestamp": "2019-04-06T23:27:22",
"content": "Trying to work out if this is a late April Fool :-D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6085692",
"author": "Gravis",
"timestamp": "2019-04-0... | 1,760,373,975.724583 | ||
https://hackaday.com/2019/04/06/hacking-16gb-into-an-old-pc-that-doesnt-want-that-much/ | Hacking 16GB Into An Old PC That Doesn’t Want That Much | Al Williams | [
"computer hacks"
] | [
"acpi",
"e820",
"motherboard",
"ram"
] | From the title, you might think this post is going to be some lame story about someone plugging in some RAM and maybe updating a BIOS. That’s where you’d be wrong. [Downtown Doug Brown] has a much more interesting and instructive story.
[Doug] found his motherboard was rated for 8 GB maximum and decided
he’d make 16 GB... | 23 | 8 | [
{
"comment_id": "6084426",
"author": "Echo_Hotel (@Echo_Hotel)",
"timestamp": "2019-04-06T20:31:57",
"content": "So what you are trying to say in 5 paragraphs is “A guy built a memory hole remap into a grub patch”.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id... | 1,760,373,975.789887 | ||
https://hackaday.com/2019/04/06/a-vintage-sony-portable-tv-brought-up-to-date/ | A Vintage Sony Portable TV, Brought Up To Date | Jenny List | [
"classic hacks"
] | [
"Raspberry Pi Zero W",
"Sony Watchman",
"videophone"
] | In the time before smartphones for on-the-go visual entertainment, there were portable TVs. You might think of a portable TV as a luggable device, but the
really
cool ones were pocket-sized. Perhaps if you are familiar with pocket TVs you’ll be thinking of a Citizen or a Casio with a matchbox-sized LCD, but before thos... | 5 | 3 | [
{
"comment_id": "6086645",
"author": "Andrew",
"timestamp": "2019-04-07T01:58:32",
"content": "//hese were simply the coolest electronics that an ’80s kid could lust after, and [Nick Reynolds] is lucky enough to have one. // Correction. 8 I think he said. He bought eBay",
"parent_id": null,
... | 1,760,373,975.834507 | ||
https://hackaday.com/2019/04/06/this-week-cyphercon-4-0/ | This Week: Cyphercon 4.0 | Mike Szczys | [
"cons"
] | [
"Cyphercon"
] | Dust off your rainbow tables and grab a burner laptop, this Thursday, April 11,
Cyphercon 4.0
roars into Milwaukee, Wisconsin. It’s a security conference with all that entails, but there is a bit of emphasis on crypto. A founding principle of Cyphercon is to support a “free and open discussion on strong cryptography”... | 5 | 2 | [
{
"comment_id": "6082761",
"author": "The Mog",
"timestamp": "2019-04-06T15:47:28",
"content": "*polyglots",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6084789",
"author": "mrehorst",
"timestamp": "2019-04-06T21:18:59",
"content": "Be sure to sto... | 1,760,373,975.966554 | ||
https://hackaday.com/2019/04/06/tomography-through-an-infinite-grid-of-resistors/ | Tomography Through An Infinite Grid Of Resistors | Brian Benchoff | [
"Crowd Funding",
"Medical Hacks"
] | [
"EIT",
"medical imaging",
"spectra",
"Tomography"
] | One of the vast untapped potentials of medicine is the access to imaging equipment. A billion people have difficulty getting access to an x-ray, and that says nothing about access to MRIs or CAT scans. Over the past few years, [Jean Rintoul] has been working on a low-cost way to image the inside of a human body using n... | 47 | 12 | [
{
"comment_id": "6082417",
"author": "Col. Panek",
"timestamp": "2019-04-06T14:37:39",
"content": "The images are not so pretty. they need finer resolution. Think of what your computer monitor would look like if it had 32 columns on the screen. Just sayin’, I don’t have a solution.",
"parent_id"... | 1,760,373,975.92099 | ||
https://hackaday.com/2019/04/07/a-petite-pico-projector-for-portable-pi/ | A Petite Pico Projector For Portable Pi | Brian Benchoff | [
"Crowd Funding"
] | [
"crowdfunding",
"laser projector",
"MEMS",
"projector"
] | A few years ago, new, innovative pico projectors, influenced by one of the TI development kits, started appearing in Kickstarter projects and other various DIY endeavours. Those projects fizzled out, most likely due to the cost of the projectors, but we got a few laughs out of it: that wearable smartphone that projecte... | 26 | 9 | [
{
"comment_id": "6098026",
"author": "Digital Corpus",
"timestamp": "2019-04-08T03:43:16",
"content": "They don’t specify what the distance is for that lumen output. Double the distance, quarter the output too. I’m also trying to figure out how 30 ANSI lumens is equivalent to 150 ANSI lumens when us... | 1,760,373,976.077941 | ||
https://hackaday.com/2019/04/07/hackaday-links-april-7-2019/ | Hackaday Links: April 7, 2019 | Brian Benchoff | [
"Hackaday Columns",
"Hackaday links"
] | [
"3d printing",
"chap stick",
"defcon",
"gramophone",
"JLCPCB",
"pcb",
"Simple Add-On"
] | It’s April, which means all the people responsible for doubling the number of badges at DEF CON are hard at work getting their prototypes ready and trying to fund the entire thing. The first one out of the gate is Da Bomb, by [netik] and his crew. This is the same team that brought you the
Ides of DEF CON
badge, a blin... | 5 | 4 | [
{
"comment_id": "6096083",
"author": "nsayer",
"timestamp": "2019-04-07T23:47:52",
"content": "I’d like to also throw in a shameless plug for DRM-114. It was the first SAO to use the new pins for serial I/O. It’s in volume production as we speak, and there will be a special limited edition version f... | 1,760,373,976.01265 | ||
https://hackaday.com/2019/04/07/tracking-binary-changes-learn-the-diff-erent-ways-of-the-elf/ | Tracking Binary Changes: Learn The DIFF-erent Ways Of The ELF | Kerry Scharfglass | [
"ARM",
"Microcontrollers",
"Software Development"
] | [
"automatic builds",
"ci",
"continuous integration",
"gcc",
"Jenkins",
"linker",
"linker script",
"map file",
"mapfile",
"source control"
] | Source control is often the first step when starting a new project (or it should be, we’d hope!). Breaking changes down into smaller chunks and managing the changes between them makes it easier to share work between developers and to catch and revert mistakes after they happen. As project complexity increases it’s ofte... | 3 | 2 | [
{
"comment_id": "6099323",
"author": "ojiegjo",
"timestamp": "2019-04-08T05:53:36",
"content": "If you’re optimizing MCU code down to single memory bytes or instructions you’re doing it wrong.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6105038",
... | 1,760,373,976.118221 | ||
https://hackaday.com/2019/04/07/diy-air-conditioner-built-from-weird-donor-appliance/ | DIY Air Conditioner Built From Weird Donor Appliance | Al Williams | [
"home hacks",
"Misc Hacks"
] | [
"air conditioning",
"collant",
"compressor"
] | There are some parts of the world where living without air conditioning borders on unthinkable. But in more moderate climates, it isn’t all that unusual. [Josh’s] apartment doesn’t have central air conditioning — the kind that connects to a forced-air heating/cooling system. It does, though, have a water circuit for ai... | 64 | 34 | [
{
"comment_id": "6093409",
"author": "Luke",
"timestamp": "2019-04-07T17:34:28",
"content": "Use a bigger evaporator, or run the compressor less.I saw a construction in one showcase cooler where the evaporator ended in a long-ish copper coil that was placed inside a bucket. The condensing water woul... | 1,760,373,976.464065 | ||
https://hackaday.com/2019/04/07/restoring-an-hp-lcz-meter-from-the-1980s/ | Restoring An HP LCZ Meter From The 1980s | Jenny List | [
"Teardown",
"Tool Hacks"
] | [
"HP",
"LCZ meter",
"teardown",
"test equipment"
] | We are fantastically lucky not only in the parts that are easily available to us at reasonable cost, but also for the affordable test equipment that we can have on our benches. It was not always this way though, and [NFM] treats us to
an extensive teardown and upgrade
of a piece of test equipment from the days when a h... | 11 | 4 | [
{
"comment_id": "6094309",
"author": "mime",
"timestamp": "2019-04-07T19:48:30",
"content": "nice find, and also his other videos on the channel look interesting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6094608",
"author": "What is Anonymous, Alex?"... | 1,760,373,976.732177 | ||
https://hackaday.com/2019/04/07/shop-built-fixtures-reveal-the-magic-of-switchable-permanent-magnets/ | Shop-Built Fixtures Reveal The Magic Of Switchable Permanent Magnets | Dan Maloney | [
"Tool Hacks"
] | [
"fixture",
"magnet",
"magnetic switch",
"magswitch",
"neodymium"
] | Have you ever wondered how switchable magnets work? Not electromagnets, but those permanent magnet fixtures like the ones that hold dial indicators to machine tools, or the big, powerful chucks for surface grinders that can be mysteriously demagnetized at the flick of a lever. It seems like magic.
Thanks to [Andrew Kle... | 22 | 10 | [
{
"comment_id": "6090842",
"author": "Col. Panek",
"timestamp": "2019-04-07T11:48:56",
"content": "Here’s where a picture is worth a thousand words.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6093879",
"author": "Luke",
"timestamp": "2019... | 1,760,373,977.036672 | ||
https://hackaday.com/2019/04/07/a-contact-lens-launcher-that-knows-the-weather/ | A Contact Lens Launcher That Knows The Weather | Tom Nardi | [
"home hacks",
"Microcontrollers"
] | [
"dispenser",
"ESP8266",
"proximity sensor",
"weather display"
] | They say that necessity is the “Mother of Invention”, but over the years we’ve started to suspect that her cousin might be an underutilized microcontroller. How else can you explain projects like the latest from [MNMakerMan], which takes the relatively
simple concept of a contact lens holder and manages to turn it into... | 10 | 4 | [
{
"comment_id": "6091333",
"author": "Better Automations",
"timestamp": "2019-04-07T13:01:22",
"content": "I like it, but the font looks so tiny. You’d need corrective lenses to read it. Maybe that’s why it’s built into a contact lens launcher? Grin",
"parent_id": null,
"depth": 1,
"repl... | 1,760,373,976.87699 | ||
https://hackaday.com/2019/04/06/diy-piano-look-ma-no-moving-parts/ | DIY Piano: Look, Ma, No Moving Parts | Brian McEvoy | [
"Musical Hacks"
] | [
"DAW",
"digital audio workstation",
"midi",
"piano",
"sound",
"Teensy",
"touch"
] | [Michael Sobolak] has a penchant for pianos, concern for capacitive touch, and special sentiment for solid state. This alliterate recipe results in a
DIY PCB piano
that leaves out the levers and is barren of buttons unless you count the stock RESET button on the Teensy. A real stickler might point out that speakers hav... | 5 | 4 | [
{
"comment_id": "6082627",
"author": "Gravis",
"timestamp": "2019-04-06T15:19:28",
"content": "Well it sounds a lot better than what I was expecting!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6104127",
"author": "Ian Tester",
"timestamp"... | 1,760,373,976.771564 | ||
https://hackaday.com/2019/04/06/anodizing-aluminium-in-the-land-of-the-queen/ | Anodizing Aluminium In The Land Of The Queen | Lewin Day | [
"chemistry hacks"
] | [
"aluminium",
"anodising",
"anodizing",
"Chemistry"
] | Aluminium is a useful material, both for its light weight and resistance to corrosion. This resistance can be improved further with various treatments, one of the more popular being anodizing. This is the process behind the fancy colored metal bling on your cousin’s BMX bike. It’s possible to perform this in the home l... | 11 | 5 | [
{
"comment_id": "6080263",
"author": "ID",
"timestamp": "2019-04-06T08:34:37",
"content": "NIce! You might still find lead in roofing supplies.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6082853",
"author": "Piecutter",
"timestamp": "201... | 1,760,373,976.8238 | ||
https://hackaday.com/2019/04/05/building-a-vibration-tumbler-on-the-cheap/ | Building A Vibration Tumbler On The Cheap | Lewin Day | [
"Tool Hacks"
] | [
"parts tumbler",
"rock tumbler",
"tumbler",
"vibration tumbler"
] | There are few tasks quite as laborious as sanding and polishing. Any job that takes a lot of time and elbow grease is a prime candidate for mechanical help, and this one is no exception. At the suggestion of friends, [VegOilGuy] decided it was time to invest in a vibration tumbler. Naturally,
building it rather than bu... | 8 | 7 | [
{
"comment_id": "6079111",
"author": "John Jorsett",
"timestamp": "2019-04-06T05:31:59",
"content": "I like stainless steel shot for tumbling, but I don’t know if it would work in this application due to leaking. In my rubber tumbler I add water and a squirt of dish soap.",
"parent_id": null,
... | 1,760,373,976.919193 | ||
https://hackaday.com/2019/04/05/we-were-really-overdue-for-laser-jackets/ | We Were Really Overdue For Laser Jackets | Lewin Day | [
"Laser Hacks"
] | [
"cyberpunk",
"jacket",
"laser",
"laser jacket"
] | Depending on who you talk to, everything is either fine, or we’re living in an oppressive cyberpunk dystopia in which we forgot to drench everything in colored neon lighting. There’s little to be done about the digital surveillance panopticon that stalks our every move, but as far as the aesthetic goes, [abetusk] is br... | 18 | 12 | [
{
"comment_id": "6077997",
"author": "Doc Oct",
"timestamp": "2019-04-06T02:14:11",
"content": "My cats would love this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6078290",
"author": "Severe Tire Damage",
"timestamp": "2019-04-06T03:13:04",
"c... | 1,760,373,977.262517 | ||
https://hackaday.com/2019/04/05/fizzle-loop-synth-does-it-with-555-timers/ | Fizzle Loop Synth Does It With 555 Timers | Lewin Day | [
"Musical Hacks"
] | [
"555",
"groovebox",
"noisebox",
"synth"
] | For every project that uses an Arduino to make soup or an ESP8266 to hash bitcoin, there’s always someone out there uttering the same old refrain.
I could have done it with a 555.
More often than not, this is true, even if it is tangential to the discussion being had. In this case however, such a statement is moot.
[lo... | 9 | 6 | [
{
"comment_id": "6077372",
"author": "Leithoa",
"timestamp": "2019-04-06T00:00:07",
"content": "Could have done it with a 556 & 555.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6077689",
"author": "ROB",
"timestamp": "2019-04-06T01:15:52",... | 1,760,373,976.969528 | ||
https://hackaday.com/2019/04/05/recreating-classic-model-kits-with-modern-tech/ | Recreating Classic Model Kits With Modern Tech | Tom Nardi | [
"3d Printer hacks",
"Toy Hacks"
] | [
"3d printed",
"balsa",
"scale model",
"spitfire",
"Warbird",
"WW2"
] | It used to be that if you wanted to make a nice scale model of an airplane, you’d be building the frame out of thin balsa ribs and covering it all up with tissue paper. Which incidentally was more or less how they built most
real
airplanes prior to the 1930s, so it wasn’t completely unreasonable to do the same on a sma... | 17 | 10 | [
{
"comment_id": "6076738",
"author": "geocrasher",
"timestamp": "2019-04-05T20:14:19",
"content": "Very nice! I loved building those back in the day. I wonder if it could be flown at all? Might be too heavy? I dunno. The structure is beautiful though :)",
"parent_id": null,
"depth": 1,
"... | 1,760,373,977.195945 | ||
https://hackaday.com/2019/04/05/cnc-your-own-pcbs-with-a-3d-printed-mill/ | CNC Your Own PCBs With A 3D Printed Mill | Brian Benchoff | [
"3d Printer hacks",
"cnc hacks"
] | [
"3D printed mill",
"3d printer",
"cnc",
"milling",
"milling machine",
"proxxon"
] | Yes, you can whip up a design for a printed circuit board, send it out to one of the many fab houses, and receive a finished, completed board in a week or two. There are quick-turn assembly houses that will manufacture a circuit board and populate it for you. But sometimes you need a board now, and that’s when we get i... | 31 | 10 | [
{
"comment_id": "6076434",
"author": "Charlie Kilian",
"timestamp": "2019-04-05T18:44:48",
"content": "Why would I buy a Proxxon when I already have a Foredom? :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6077006",
"author": "Bob Fisher AA5KW",
"t... | 1,760,373,977.328575 | ||
https://hackaday.com/2019/04/04/hiding-messages-in-magnets/ | Hiding Messages In Magnets | Lewin Day | [
"Misc Hacks"
] | [
"Hidden text",
"magnet",
"magnets"
] | Magnets have always been fun, particularly since the super-powerful neodymium type became readily available. You can stack them up, pull them apart, or, if you really want, use them for something practical. Now [Adric] has shown us a new use for them entirely –
by writing hidden messages on them.
It’s a remarkably simp... | 12 | 4 | [
{
"comment_id": "6073104",
"author": "Anthony Pray",
"timestamp": "2019-04-05T02:29:53",
"content": "Wonder if this would work to create something like this?https://youtu.be/IANBoybVApQ?t=121",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6073484",
"... | 1,760,373,977.791635 | ||
https://hackaday.com/2019/04/04/arduino-shield-makes-driving-nixies-easy/ | Arduino Shield Makes Driving Nixies Easy | Lewin Day | [
"classic hacks"
] | [
"arduino",
"arduino shield",
"nixie",
"nixie clock",
"Nixie driver",
"nixie tube"
] | Nixie tubes are adored by hackers across the world for their warm glow that recalls an age of bitter nuclear standoffs and endless proxy wars. However, they’re not the easiest thing to drive, requiring high voltages that can scare microcontrollers senseless. Thankfully,
it’s possible to score an Arduino shield that doe... | 0 | 0 | [] | 1,760,373,978.441959 | ||
https://hackaday.com/2019/04/04/pocket-sized-deauther-could-definitely-get-you-in-trouble/ | Pocket-Sized Deauther Could Definitely Get You In Trouble | Lewin Day | [
"Wireless Hacks"
] | [
"deauth attack",
"Deauthentication",
"wifi"
] | Interfering with radio communications, whether through jamming, deauthing attacks, or other meddling, is generally considered a crime, and one that attracts significant penalties. However, studying such techniques should provide a useful edge in the electronic wars to come. In this vein,
[Giorgio Filardi] has recently ... | 43 | 10 | [
{
"comment_id": "6071972",
"author": "Doc Oct",
"timestamp": "2019-04-04T20:16:32",
"content": "Could just use something like the Odroid-Go and it would be a little less MacGyver’d together.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6072120",
"a... | 1,760,373,977.910469 | ||
https://hackaday.com/2019/04/04/solar-circuit-sculpture-pumms-the-night-away/ | Solar Circuit Sculpture Pumms The Night Away | Dan Maloney | [
"Art"
] | [
"74hc240",
"beam",
"brass",
"Circuit Sculpture",
"photovoltaic",
"pummer",
"pv",
"satellite",
"solar cell",
"supercapacitor"
] | A word of warning: Google for the definition of the word “pummer” at your own risk. Rest assured that
this beautiful solar-powered circuit sculpture
fits the only definition of pummer that we care to deal with.
For the unfamiliar, a pummer is a device from the BEAM style of robotics, a sort of cyborg plant that absorbs... | 17 | 10 | [
{
"comment_id": "6071797",
"author": "vincentmakes",
"timestamp": "2019-04-04T19:17:13",
"content": "love it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6071835",
"author": "joe",
"timestamp": "2019-04-04T19:29:37",
"content": "http://solarboti... | 1,760,373,977.965992 | ||
https://hackaday.com/2019/04/04/wopr-building-hardware-worth-sharing/ | WOPR: Building Hardware Worth Sharing | Tom Nardi | [
"cons",
"Hackaday Columns",
"hardware",
"Slider"
] | [
"3D printed enclosure",
"design",
"fabrication",
"hardware design",
"production",
"WOPR Summit"
] | It wouldn’t be much of a stretch to assume that anyone reading Hackaday regularly has at least progressed to the point where they can connect an LED to a microcontroller and get it to blink without setting anything on fire. We won’t even chastise you for not doing it with a 555 timer. It’s also not a stretch to say if ... | 12 | 5 | [
{
"comment_id": "6071434",
"author": "ArduinoEnigma",
"timestamp": "2019-04-04T17:23:25",
"content": "I like using the Arduino Nano as a solderable turnkey module on projects. Provides USB, power regulation, and microcontroller for about $2.50If the project point can absorb it, why not.On a separate... | 1,760,373,978.2451 | ||
https://hackaday.com/2019/04/04/print-your-own-large-format-camera/ | Print Your Own Large Format Camera | Brian Benchoff | [
"3d Printer hacks"
] | [
"camera",
"large format photography",
"photography"
] | Just like how vinyl records are seeing a resurgence in an era of digital streaming music, we’re also seeing a lot of people interested in another technology that is as obsolete as it is perfected.
The large format camera
is back as a kit, it makes huge images, and there’s an Open Source version if you want to print you... | 32 | 9 | [
{
"comment_id": "6071101",
"author": "sgraber",
"timestamp": "2019-04-04T15:34:12",
"content": "For those of you looking for the Open Source version, here’s the link:http://manual.standardcameras.com/0_a/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "60711... | 1,760,373,978.762419 |
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