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https://hackaday.com/2019/08/16/hackaday-podcast-031-holonomic-drives-badges-of-def-con-we-dont-do-on-chip-debugging-and-small-run-manufacturing-snafus/ | Hackaday Podcast 031: Holonomic Drives, Badges Of DEF CON, We Don’t Do On-Chip Debugging, And Small Run Manufacturing Snafus | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"badgelife",
"badges",
"DEF CON",
"defcon 27",
"embedded engineering",
"embedded systems",
"Hackaday Podcast"
] | Mike Szczys and Kerry Scharfglass recorded this week’s podcast live from DEF CON. Among the many topics of discussion, we explore some of the more interesting ways to move a robot. From BB-8 to Holonomic Drives, Kerry’s hoping to have a proof of concept in time for Supercon. Are you using On-Chip Debugging with your pr... | 2 | 2 | [
{
"comment_id": "6172776",
"author": "Ostracus",
"timestamp": "2019-08-16T16:57:39",
"content": "“Are you using On-Chip Debugging with your projects? Neither are we, but maybe we should.”Maybe a series on how cheap production has enabled more diagnostics in a device?",
"parent_id": null,
"de... | 1,760,373,803.147616 | ||
https://hackaday.com/2019/08/16/broken-hp-48-calculator-reborn-as-bluetooth-keyboard/ | Broken HP-48 Calculator Reborn As Bluetooth Keyboard | Sven Gregori | [
"Arduino Hacks",
"Peripherals Hacks",
"Wireless Hacks"
] | [
"Adafruit Feather",
"ble",
"bluetooth",
"bluetooth keyboard",
"calculator",
"graphing calculator"
] | Considering their hardware specification, graphing calculators surely feel like an anachronism in 2019. There are plenty of apps and other software available for that nowadays, and despite all preaching by our teachers, we actually do carry calculators with us every day. On the other hand, never underestimate the power... | 8 | 3 | [
{
"comment_id": "6172777",
"author": "Ostracus",
"timestamp": "2019-08-16T17:00:46",
"content": "I don’t know if “outshines” is the word to use. Now all I need to do is replace my screen non-destructively (remember no screws, just plastic pegs).",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,373,803.366444 | ||
https://hackaday.com/2019/08/16/this-week-in-security-black-hat-def-con-and-patch-tuesday/ | This Week In Security: Black Hat, DEF CON, And Patch Tuesday | Jonathan Bennett | [
"computer hacks",
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"blackhat",
"DEF CON",
"This Week in Security"
] | Blackhat and DEF CON both just wrapped, and Patch Tuesday was this week. We have a bunch of stories to cover today.
First
some light-hearted shenanigans
. Obviously inspired by
Little Bobby Tables
, Droogie applied for the vanity plate “NULL”. A year went by without any problems, but soon enough it was time to renew hi... | 11 | 6 | [
{
"comment_id": "6172745",
"author": "AKA the A",
"timestamp": "2019-08-16T14:26:06",
"content": "Kudos for the Airforce finally acknowledging that security through obscurity is a flawed mode of thinking and actually letting hackers loose on real hardware.as for the car plate – this has been around ... | 1,760,373,803.107122 | ||
https://hackaday.com/2019/08/16/electric-vehicles-on-ice/ | Electric Vehicles On Ice | Sharon Lin | [
"classic hacks",
"Transportation Hacks"
] | [
"electric vehicles",
"ice",
"ice skating",
"massachusetts",
"MITERS",
"racing"
] | This winter, a group of electric vehicle enthusiasts, including [Dane Kouttron], raced their homemade electric go-karts on the semi-frozen tundra nearby as part of their annual winter tradition.
These vehicles are appropriately named Atomic Thing and Doom Sled
, and need perfect weather conditions to really put them to... | 10 | 4 | [
{
"comment_id": "6172727",
"author": "Ewald",
"timestamp": "2019-08-16T12:31:49",
"content": "nICE !",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6172729",
"author": "emil",
"timestamp": "2019-08-16T12:42:17",
"content": "Cool comme... | 1,760,373,803.52767 | ||
https://hackaday.com/2019/08/16/turning-a-sony-into-a-leica-through-extreme-camera-modding/ | Turning A Sony Into A Leica Through Extreme Camera Modding | Jenny List | [
"classic hacks",
"digital cameras hacks"
] | [
"digital camera",
"fake",
"leica",
"sony"
] | The quality of a photograph is a subjective measure depending upon a multitude of factors of which the calibre of the camera is only one. Yet a high quality camera remains an object of desire for many photographers as it says something about you and not just about the photos you take. [Neutral Gray] didn’t have a Leica... | 12 | 4 | [
{
"comment_id": "6172698",
"author": "ThisGuy",
"timestamp": "2019-08-16T09:07:14",
"content": "While it’s VERY impressive workmanship I just can’t shake the one, constant thought: “Why? Why go through all this trouble?”“Because I can” is an answer to that, but usually there’s more to it than that."... | 1,760,373,803.473003 | ||
https://hackaday.com/2019/08/15/fire-breathing-n64-puts-blast-processing-in-the-shade/ | Fire Breathing N64 Puts Blast Processing In The Shade | Lewin Day | [
"Nintendo Hacks"
] | [] | Consoles over the years have innovated, bringing new features and experiences with each subsequent generation. Rumble, motion controls and more recently VR have all come to the fore as companies vie for supremacy in the marketplace. Nobody’s really had the guts to tackle fire, though.
Until now.
The case and spinning l... | 10 | 10 | [
{
"comment_id": "6172668",
"author": "deralchemist",
"timestamp": "2019-08-16T05:26:05",
"content": "Awesome build! I love the details and the rotating Nintendo N.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6172673",
"author": "Vije Miller",
"times... | 1,760,373,803.420947 | ||
https://hackaday.com/2019/08/15/diy-pc-test-bench-puts-hardware-troubleshooting-out-in-the-open/ | DIY PC Test Bench Puts Hardware Troubleshooting Out In The Open | Adam Fabio | [
"hardware",
"Tool Hacks"
] | [
"hardware",
"pc",
"Test bed",
"test bench"
] | If you’ve built a few PCs, you know how frustrating troubleshooting can be. Finding a faulty component inside the cramped confines of a case can be painful — whether its literal when sharp edges draw blood, or just figurative when you have to open that cramped case multiple times to make adjustments.
[Colonel Camp] dec... | 20 | 10 | [
{
"comment_id": "6172469",
"author": "scott.tx",
"timestamp": "2019-08-15T11:07:50",
"content": "uhhh. wow?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6172477",
"author": "djsmiley2k",
"timestamp": "2019-08-15T11:41:22",
"content"... | 1,760,373,803.58261 | ||
https://hackaday.com/2019/08/15/millenium-falcon-as-hid-get-unity-to-talk-to-teensy/ | Millenium Falcon HID: Get Unity To Talk To Teensy | Inderpreet Singh | [
"Microcontrollers",
"Peripherals Hacks"
] | [
"IMU",
"millenium falcon",
"mpu6050",
"Teensy",
"Teensy 3.2",
"unity",
"usb",
"USB CDC",
"USB RAW HID"
] | Here’s one that proves a hardware project can go beyond blinking LEDs and dumping massive chunks of data onto a serial console. Those practices are fine for some, but [dimtass] has found a more elegant hack for a more civilized age. His
3D Millennium Falcon model gets
orientation data from his IMU as an an HID device.
... | 11 | 5 | [
{
"comment_id": "6172448",
"author": "Daid",
"timestamp": "2019-08-15T08:23:41",
"content": "Uhm. If you are doing USB HID, why not do USB HID joystick, pretty sure that you could access that from unity. No shared memory needed, no platform specific code…",
"parent_id": null,
"depth": 1,
... | 1,760,373,803.627721 | ||
https://hackaday.com/2019/08/14/overclocking-in-an-snes-emulator/ | Overclocking In An SNES Emulator | Jonathan Bennett | [
"computer hacks",
"Nintendo Hacks"
] | [
"emulation",
"overclocking",
"snes"
] | The bsnes emulator has
a new overclocking mode
to eliminate slowdowns in SNES games while keeping the gameplay speed accurate. We’re emulating old SNES hardware on modern machines that are vastly more powerful. Eliminating slowdowns should be trivial, right? For an emulator such as bsnes, which is written to achieve es... | 12 | 6 | [
{
"comment_id": "6172434",
"author": "Hack Jack",
"timestamp": "2019-08-15T06:13:27",
"content": "Basically, there is a way to output non-interlaced video on traditional CRT? Wow, I have no idea! How is the 240p decided then? I think I have seen different game consoles of the same generation having ... | 1,760,373,803.277643 | ||
https://hackaday.com/2019/08/14/jessica-is-soft-on-robot-grippers/ | [Jessica] Is Soft On Robot Grippers | Al Williams | [
"3d Printer hacks",
"Robots Hacks"
] | [
"ecoflex",
"gripper",
"robot",
"robot arm",
"robot hand",
"soft robotics"
] | It is an old movie trope: a robot grips something and accidentally crushes it with its super robot strength. A little feedback goes a long way, of course, but futuristic robots may also want to employ soft grippers. [Jessica] shows how to build
soft grippers made of several cast fingers.
The fingers are cast from Ecofl... | 11 | 9 | [
{
"comment_id": "6172405",
"author": "Ostracus",
"timestamp": "2019-08-15T02:08:14",
"content": "“It is an old movie trope: a robot grips something and accidentally crushes it with its super robot strength. ”Sounds like the beginnings of a horror movie. Or a comedy: “ha ha you crush everything”.",
... | 1,760,373,803.32142 | ||
https://hackaday.com/2019/08/14/keezer-controller-keeps-the-kegs-pouring/ | Keezer Controller Keeps The Kegs Pouring | Lewin Day | [
"Beer Hacks"
] | [
"beer",
"keezer",
"keg",
"kegerator"
] | It’s always a good idea to keep a few brews in the fridge ready to go, but being able to offer your guests a fresh-poured draught beer is another step above. It’s not trivial, but with a few kegs, a freezer and the right CO2 parts, it’s achievable for the average hacker. [Ben Brooks] had a keezer (keg freezer) setup th... | 6 | 2 | [
{
"comment_id": "6172410",
"author": "echodelta",
"timestamp": "2019-08-15T02:33:42",
"content": "How does frozen beer come out of a tap?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6172530",
"author": "Ben Brooks",
"timestamp": "2019-08-1... | 1,760,373,803.810164 | ||
https://hackaday.com/2019/08/14/control-the-suck-with-this-manual-vacuum-pick-and-place-tool/ | Control The Suck With This Manual Vacuum Pick-And-Place Tool | Dan Maloney | [
"Tool Hacks"
] | [
"pcb",
"PIC18F13K22",
"pick-and-plce",
"pnp",
"smd",
"smt",
"surface mount",
"tweezers",
"vacuum"
] | The tapes that surface-mount devices come in may be optimized for automated pick and place, but woe betide those who try to dig components out manually. No matter what size package, the well on the tape seems to be just a wee bit too small to allow tweezers to grip it, so you end up picking the thing up edgewise or wor... | 10 | 2 | [
{
"comment_id": "6172329",
"author": "Andy Pugh",
"timestamp": "2019-08-14T20:07:55",
"content": "Top Tip! Don’t buy one of the “Vacuum SMD Pump Suction Vacuum Tweezer Pick Up Silver White G2C2” devices from eBay. They do not work. Not at all. Not even a little bit. Ever.The only possible use might... | 1,760,373,804.06577 | ||
https://hackaday.com/2019/08/14/new-life-for-old-nintendo-handhelds-with-esp32/ | New Life For Old Nintendo Handhelds With ESP32 | Erin Pinheiro | [
"handhelds hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"emulators",
"ESP32",
"game boy",
"Game Boy pocket",
"handheld console",
"retro gaming"
] | The Game Boy Pocket was Nintendo’s 1996 redesign of the classic 1989 handheld, giving it a smaller form factor, better screen and less power consumption. While it didn’t become as iconic as its predecessor, it still had enough popularity for modders such as [Eugene] to create new hardware for it. His Retro ESP32 board ... | 17 | 8 | [
{
"comment_id": "6172314",
"author": "davedarko",
"timestamp": "2019-08-14T18:50:35",
"content": "my favorite handheld, nice! there are DMG colored pocket shells out there :3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6172316",
"author": "Doc Oct",
... | 1,760,373,804.350829 | ||
https://hackaday.com/2019/08/15/led-driver-board-could-be-your-ticket-to-fpga-development/ | LED Driver Board Could Be Your Ticket To FPGA Development | Lewin Day | [
"FPGA"
] | [
"fpga",
"led",
"LED display"
] | Microcontrollers are a great way to learn about developing for embedded systems. However, once you outgrow their capabilities, FPGAs bring muscle that’s hard for even the fastest-clocked micros to match. If you’re doing anything with high-speed signals, loads of RAM, or something that requires lots of parallel calculat... | 19 | 10 | [
{
"comment_id": "6172654",
"author": "MacAttack",
"timestamp": "2019-08-16T02:51:45",
"content": "Aren’t Spartan 6 boards, albeit without the Ethernet and perhaps less RAM, available for under $20 ? What else am I missing ?",
"parent_id": null,
"depth": 1,
"replies": [
{
"... | 1,760,373,804.222693 | ||
https://hackaday.com/2019/08/15/bike-mounted-synthetic-aperture-radar-makes-detailed-images/ | Bike-Mounted Synthetic-Aperture Radar Makes Detailed Images | Dan Maloney | [
"Misc Hacks",
"Radio Hacks"
] | [
"fft",
"fmcw",
"fpga",
"frequency modulated continuous wave",
"gpu",
"microwave",
"mixer",
"radar",
"sar",
"Synthetic aperture radar",
"tensor flow"
] | Synthetic-aperture radar, in which a moving radar is used to simulate a very large antenna and obtain high-resolution images, is typically not the stuff of hobbyists. Nobody told that to [Henrik Forstén], though, and so we’ve got
this bicycle-mounted synthetic-aperture radar project
to marvel over as a result.
Neither ... | 20 | 6 | [
{
"comment_id": "6172634",
"author": "Hirudinea",
"timestamp": "2019-08-15T23:22:01",
"content": "I have no idea how much this weighs but I’d love to see it mounted on a drone!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6172646",
"author": "Maave... | 1,760,373,804.123248 | ||
https://hackaday.com/2019/08/15/home-automation-at-a-glance-using-ai-glasses/ | Home Automation At A Glance Using AI Glasses | Tom Nardi | [
"home hacks",
"Software Development"
] | [
"computer vision",
"convolutional neural network",
"home automation",
"image recognition",
"Nvidia Jetson Nano"
] | There was a time when you had to get up from the couch to change the channel on your TV. But then came the remote control, which saved us from having to move our legs. Later still we got electronic assistants from the likes of Amazon and Google which allowed us to command our home electronics with nothing more than our... | 3 | 3 | [
{
"comment_id": "6172603",
"author": "qwert",
"timestamp": "2019-08-15T20:47:16",
"content": "We’re almost there. The ultimate conclusion of all human endeavor–the final state of technology.http://4.bp.blogspot.com/-A3F9IzFJ-mg/UT0zFRMpiiI/AAAAAAAAAV0/8dnDpQGTcdc/s1600/07.jpg",
"parent_id": null... | 1,760,373,804.171541 | ||
https://hackaday.com/2019/08/15/spains-first-open-source-satellite/ | Spain’s First Open Source Satellite | Sharon Lin | [
"Microcontrollers",
"Wireless Hacks"
] | [
"2019 Hackaday Prize",
"cubesat",
"satellite",
"space"
] | [Fossa Systems], a non-profit youth association based out of Madrid, is
developing an open-source satellite set to launch in October 2019
. The FossaSat-1 is sized at 5x5x5 cm, weighs 250g, and will provide free IoT connectivity by communicating LoRa RTTY signals through low-power RF-based LoRa modules. The satellite i... | 27 | 8 | [
{
"comment_id": "6172567",
"author": "chester moore",
"timestamp": "2019-08-15T18:41:10",
"content": "Hmmm…I need to look at the footprint on this thing. I have a series of remote research project that need exactly this sort of a gateway.",
"parent_id": null,
"depth": 1,
"replies": []
... | 1,760,373,804.291866 | ||
https://hackaday.com/2019/08/15/fail-of-the-week-supercapacitor-spot-welder/ | Fail Of The Week: Supercapacitor Spot Welder | Al Williams | [
"Fail of the Week",
"Tool Hacks"
] | [
"fail",
"spot welder",
"supercap",
"supercapacitor",
"weld",
"welding"
] | [Julian] needed to weld a bit of nickel to some steel and decided to use a spot welding technique. Of course he didn’t have a spot welder sitting around. Since these are fairly simple machines so [Julian] set out to
build a spot welder using a charged supercapacitor
. The fundamentals all seem to be there — the superca... | 33 | 15 | [
{
"comment_id": "6172548",
"author": "gopeaj",
"timestamp": "2019-08-15T17:07:52",
"content": "He could’ve TIG welded it @ about 2-3 amps.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6172692",
"author": "LightningPhil",
"timestamp": "2019-... | 1,760,373,804.423695 | ||
https://hackaday.com/2019/08/15/uncovering-the-echo-dots-hidden-usb-port/ | Uncovering The Echo Dot’s Hidden USB Port | Tom Nardi | [
"hardware",
"home hacks",
"Slider"
] | [
"amazon",
"breakout",
"debug",
"echo",
"echo dot",
"usb"
] | If you upgraded to Amazon’s latest Echo Dot, you might have been surprised to find that the diminutive voice assistant had shed its USB port. Earlier models of the Dot used a garden variety micro USB port for power, which hackers eventually figured out also provided a helpful way to snoop around inside the device’s fir... | 62 | 13 | [
{
"comment_id": "6172531",
"author": "macsimski",
"timestamp": "2019-08-15T16:01:39",
"content": "after throwing away the *th micro usb cable this month because it would not charge my phone anymore, i completely understand the switch to barrel jack. Man, i hate that connector even more than the old ... | 1,760,373,804.600594 | ||
https://hackaday.com/2019/08/15/safety-systems-for-stopping-an-uncontrolled-drone-crash/ | Safety Systems For Stopping An Uncontrolled Drone Crash | Jenny List | [
"Current Events",
"drone hacks",
"Featured"
] | [
"algorithm",
"drone",
"ETH Zurich",
"failsafe",
"Matternet",
"multirotor",
"parachute",
"Swiss Post",
"Verity Studios"
] | We spend a lot of time here at Hackaday talking about drone incidents and today we’re looking into the hazard of operating in areas where people are present. Accidents happen, and a whether it’s a catastrophic failure or just a dead battery pack, the chance of a multi-rotor aircraft crashing down onto people below is a... | 33 | 10 | [
{
"comment_id": "6172504",
"author": "jcwren",
"timestamp": "2019-08-15T14:12:47",
"content": "It is not a “flying weapon”. Nothing is a weapon until it is used with intent to harm. Are you using a weapon to pound a nail in? No, it’s a hammer. If you use it to pound someone’s head in, THEN it’s a we... | 1,760,373,804.669577 | ||
https://hackaday.com/2019/08/14/india-launched-a-moon-orbiter-lander-and-rover-all-in-one-shot-with-chandrayaan-2/ | India Launched A Moon Orbiter, Lander, And Rover All In One Shot With Chandrayaan-2 | Tom Nardi | [
"Current Events",
"Hackaday Columns",
"Slider",
"Space"
] | [
"apollo",
"india",
"ISRO",
"lander",
"lunar lander",
"lunar orbiter",
"moon",
"orbit"
] | On July 22nd, India launched an ambitious mission to simultaneously deliver an orbiter, lander, and rover to the Moon. Launched from the Satish Dhawan Space Centre on a domestically-built GSLV Mk III rocket, Chandrayaan-2 is expected to enter lunar orbit on August 20th. If everything goes well, the mission’s lander mod... | 62 | 31 | [
{
"comment_id": "6172323",
"author": "KVG",
"timestamp": "2019-08-14T19:31:27",
"content": "I think there’s a kingkiller joke in here somewhere. Don’t Kvothe me on that, though.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6172416",
"author": "KVG"... | 1,760,373,804.773785 | ||
https://hackaday.com/2019/08/14/data-mining-home-water-usage-your-water-meter-knows-you-a-bit-too-well/ | Data Mining Home Water Usage; Your Water Meter Knows You A Bit Too Well | Tom Nardi | [
"green hacks",
"home hacks"
] | [
"data analysis",
"data mining",
"machine learning",
"privacy",
"water use"
] | The average person has become depressingly comfortable with the surveillance dystopia we live in. For better or for worse, they’ve come to accept the fact that data about their lives is constantly being collected and analyzed. We’re at the point where a sizable chunk of people believe their smartphone is listening in o... | 70 | 18 | [
{
"comment_id": "6172253",
"author": "mkomarinski",
"timestamp": "2019-08-14T15:42:49",
"content": "Polling by second can tell a lot of information. When our town polls for billing purposes I think it’s more like once an hour or even once a day which now blends all of that usage together and makes ... | 1,760,373,805.05825 | ||
https://hackaday.com/2019/08/14/cheap-electric-scooter-gets-a-big-brake-upgrade-unlocks-proper-drift-mode/ | Cheap Electric Scooter Gets A Big Brake Upgrade; Unlocks Proper Drift Mode | Lewin Day | [
"Featured",
"Skills",
"Slider",
"Transportation Hacks"
] | [
"band brake",
"brake",
"brakes",
"disc brake",
"disc brakes",
"electric scooter",
"razor scooter",
"scooter"
] | The last few years have seen a huge rise in the prominence of electric scooters. Brushless motors, lithium batteries, and scooter sharing companies have brought them to the mainstream. However, electric scooters of a variety of designs have been around for a long time, spawning a dedicated subculture of hackers intent ... | 7 | 5 | [
{
"comment_id": "6172370",
"author": "Dan",
"timestamp": "2019-08-14T22:28:56",
"content": "Nice work. The brake on my (non-electric) scooter is also the worst part. Worrying that there’s a trend there!But slightly worried about the photo of you using a grinder single-handed, holding the wheel you’r... | 1,760,373,804.897885 | ||
https://hackaday.com/2019/08/14/remote-ads-b-install-listens-in-on-all-the-aircraft-transmissions-with-rtl-sdr-trio-phones-home-on-cellular/ | Remote ADS-B Install Listens In On All The Aircraft Transmissions With RTL-SDR Trio, Phones Home On Cellular | Dan Maloney | [
"Misc Hacks",
"Wireless Hacks"
] | [
"ACARS",
"ads-b",
"co-linear",
"coaxial",
"dongle",
"FlightAware",
"Raspberry Pi 3",
"RTL-SDR"
] | When installing almost any kind of radio gear, the three factors that matter most are the same as in real estate: location, location, location. An unobstructed location at the highest possible elevation gives the antenna the furthest radio horizon as well as the biggest bang for the installation buck. But remote instal... | 19 | 7 | [
{
"comment_id": "6172206",
"author": "mike",
"timestamp": "2019-08-14T11:36:44",
"content": "Why so many people use a Raspberry Pi. for outdoor applications I’ll never know as it does not have a industrial temp range. So expect it to fail when it gets to hot or cold.",
"parent_id": null,
"d... | 1,760,373,805.296029 | ||
https://hackaday.com/2019/08/14/print-your-own-heat-shrink-labels-for-factory-chic-wire-naming/ | Print Your Own Heat Shrink Labels For Factory-Chic Wire Naming | Al Williams | [
"Tool Hacks"
] | [
"heat shrink",
"heatshrink",
"label",
"label printer"
] | Heat shrink tubing is great for insulating wires. Labeling wires in a bundle is always useful, too. [Voltlog] has a cheap Brother label printer and discovered he can buy knock off label cassettes for a lot less from China. However, he also found something else: cassettes with heat shrink tubing in them made for the sam... | 67 | 28 | [
{
"comment_id": "6172172",
"author": "onebiozz",
"timestamp": "2019-08-14T08:10:11",
"content": "I worked in a place with a heat shrink printer, i was told the label maker cost $600 (grain of salt) would be really neat if you could just do it at home with a cheap printer.but i will say my experience... | 1,760,373,805.231973 | ||
https://hackaday.com/2019/08/13/simple-bluetooth-car-audio-from-a-pi-zero/ | Simple Bluetooth Car Audio From A Pi Zero | Richard Baguley | [
"Raspberry Pi"
] | [
"audio",
"bluetooth",
"Yocto"
] | When [Sami Pietikäinen] realized that the Bluetooth built into his car didn’t support audio, he didn’t junk it and buy a Tesla. Instead, he decided to remedy the problem by building a
small Bluetooth device that plugged into the Aux socket
. To do this, he used a Raspberry Pi Zero with a
pHAT DAC
(Digital to Audio Conv... | 24 | 9 | [
{
"comment_id": "6172149",
"author": "Deneteus",
"timestamp": "2019-08-14T05:21:50",
"content": "Install Crankshaft on RPI 3B. Ditch the Zero and make an Android interface. :) Then you have Bluetooth and WIFI.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6... | 1,760,373,805.120335 | ||
https://hackaday.com/2019/08/13/1940s-portable-radio-is-a-suitcase/ | 1940s Portable Radio Is A Suitcase | Al Williams | [
"Teardown",
"Wireless Hacks"
] | [
"am radio",
"radio",
"vintage radio",
"zenith"
] | The meaning of the word portable has changed a bit over the years. These days something has to be pretty tiny to be considered truly portable, but in the 1940s, anything with a handle on it that you could lift with one hand might be counted as portable electronics. Zenith made a line of portable radios that were simila... | 12 | 8 | [
{
"comment_id": "6172128",
"author": "Ren",
"timestamp": "2019-08-14T02:42:56",
"content": "My aunt gave me a portable tube radio to fix.This was in the early 1970’s. The radio was much older than that.I never did get it going, It had a huge battery that supply the B+ as well as another voltage (pr... | 1,760,373,804.951444 | ||
https://hackaday.com/2019/08/13/itty-bitty-midi-piano-sings-with-solenoids/ | Itty Bitty MIDI Piano Sings With Solenoids | Kristina Panos | [
"Arduino Hacks"
] | [
"arduino",
"midi",
"solenoid",
"Toy Piano"
] | Toy pianos are fun to plink around on for a minute, but their small keyboards and even smaller sound make them musically uninteresting pretty quickly. [Måns Jonasson] found a way to jazz up a two-octave toy piano almost beyond recognition.
All it took was thirty solenoids, a few Arduinos, a MIDI shield, and a lot of ti... | 9 | 7 | [
{
"comment_id": "6172103",
"author": "WilliamDeRieux",
"timestamp": "2019-08-13T23:21:40",
"content": "I’d probably place a thin amount of foam insulation around the part that the actuators strike to muffle the extra “clicky” or “tinny” sound that is inherent to metal on metal contact.",
"parent... | 1,760,373,805.347159 | ||
https://hackaday.com/2019/08/13/mix-and-match-parts-to-build-a-better-mountain-bike-derailleur/ | Mix And Match Parts To Build A Better Mountain Bike Derailleur | Lewin Day | [
"Misc Hacks"
] | [
"bike",
"clutch derailleur",
"derailleur",
"shimano"
] | Mountain bikers take their sport seriously, and put their bikes through all manner of punishment in the course of a ride. This has given rise to a wide range of specialist equipment, such as suspension, disc brakes and even clutch derailleurs, which help reduce chain slap when riding over rough terrain. However, these ... | 4 | 3 | [
{
"comment_id": "6172085",
"author": "Marcin",
"timestamp": "2019-08-13T21:12:55",
"content": "Different approach:http://www.jtekengineering.com/shiftmate/.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6172148",
"author": "echodelta",
"timestamp": "2... | 1,760,373,805.386361 | ||
https://hackaday.com/2019/08/13/bolt-on-stepper-motor-driver-for-the-raspberry-pi/ | Bolt-On Stepper Motor Driver For The Raspberry Pi | Tom Nardi | [
"3d Printer hacks",
"Raspberry Pi",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"3D Printer Controller",
"CNC shield",
"stepper driver",
"Trinamic"
] | For his entry into the 2019 Hackaday Prize, [Tobius Daichi] is working on
adding some motion control capabilities to everyone’s favorite Linux SBC
. His 3+Pi board attaches to the Raspberry Pi’s GPIO header and gives you a convenient way to control four individual stepper motors. Perfect for a 3D printer, laser cutter,... | 9 | 4 | [
{
"comment_id": "6172049",
"author": "Severe Tire Damage",
"timestamp": "2019-08-13T18:52:22",
"content": "Not unlike what I did with a Beagblebone Black where I had the PRU unit handle the steppers.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6172060",
... | 1,760,373,805.440296 | ||
https://hackaday.com/2019/08/13/retrotechtacular-predictions-that-just-missed-it/ | Retrotechtacular: Predictions That Just Missed It | Al Williams | [
"History",
"Medical Hacks",
"Retrotechtacular"
] | [
"future",
"gernsback",
"predictions",
"retrotechtacular",
"telemedicine",
"waldos"
] | Few occupations are more fraught with peril than predicting the future. If you are a science fiction author, it might not matter, but if you are trying to design the next game-changing piece of hardware, the stakes are higher.
It seems like, for the most part, even if you manage to get some of the ideas right, the form... | 40 | 16 | [
{
"comment_id": "6172023",
"author": "Ostracus",
"timestamp": "2019-08-13T17:33:27",
"content": "“In a footnote, Gernsback notes that you can’t send a 525-line TV signal on current phone lines, but a 250-350 line picture was possible and that would be sufficient.”We’ve been spoiled. 4K or nothing.“... | 1,760,373,805.652711 | ||
https://hackaday.com/2019/08/13/electric-dump-truck-tricycle-is-no-toy/ | Electric Dump Truck Tricycle Is No Toy | Bryan Cockfield | [
"Transportation Hacks"
] | [
"axle",
"bicycle",
"dump",
"electric",
"farm",
"homestead",
"motorcycle",
"mule",
"tractor",
"trailer",
"tricycle"
] | There are some utility bicycles on the market, some with electric motors to help carry a good bit of cargo. If you really need to haul more weight than a typical grocery-getter like this, you’ll want to look into a tricycle for higher capacity loads. Nothing you’ll find will match this monstrous electric tricycle hand-... | 31 | 13 | [
{
"comment_id": "6171993",
"author": "Radical Brad",
"timestamp": "2019-08-13T16:12:14",
"content": "Thanks for posting my DIY Tractor!It has really made life around here much easier, especially when collecting firewood.Cheers!Radical Brad",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,805.802988 | ||
https://hackaday.com/2019/08/13/automate-the-freight-platooning/ | Automate The Freight: Platooning | Dan Maloney | [
"Current Events",
"Featured",
"Transportation Hacks"
] | [
"Automate the Freight",
"autonomous",
"drafting",
"following",
"platooning",
"self-driving",
"semi",
"tractor trailer",
"trucking"
] | On yet another one of those long, pointless road trips that seemed to punctuate my life starting when I got my license, I was plying the roads somewhere in eastern Pennsylvania with a friend. He told me that on long trips he’d often relieve the boredom by finding another car from the same state as his destination, and ... | 34 | 12 | [
{
"comment_id": "6171972",
"author": "Ostracus",
"timestamp": "2019-08-13T15:24:29",
"content": "So basically concrete railroads.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6171989",
"author": "Dan Maloney",
"timestamp": "2019-08-13T15:51... | 1,760,373,805.732377 | ||
https://hackaday.com/2019/08/13/spin-me-right-round-baby-generator-building-experiments-for-mere-mortals/ | Spin Me Right Round, Baby: Generator Building Experiments For Mere Mortals | Brian McEvoy | [
"how-to"
] | [
"3-phase",
"alternating current",
"alternative fuel",
"alternative power",
"current",
"dynamo",
"educational",
"generation",
"generator",
"magnet",
"motor",
"power",
"three-phase",
"turbine",
"wind"
] | How many of you plan to build a wind-powered generator in the next year? Okay, both of you can put your hands down. Even if you don’t want to wind your coils manually, learning about the
principles in an electric generator
might spark your interest. There is a lot of math to engineering a commercial model, but if we ap... | 38 | 13 | [
{
"comment_id": "6171920",
"author": "Moryc",
"timestamp": "2019-08-13T11:35:00",
"content": "Traditional DIY wind turbine generator, at least in my country, starts its life as one or three electric motors from old washing machines. Both stators and rotors are stripped. With more than one motor, the... | 1,760,373,805.926457 | ||
https://hackaday.com/2019/08/12/homemade-integrated-circuits-hack-chat/ | Homemade Integrated Circuits Hack Chat | Dan Maloney | [
"Hackaday Columns"
] | [
"deposition",
"differential amplifier",
"etching",
"fabrication",
"ic",
"photolithography",
"Sam Zeloof",
"silicon",
"The Hack Chat"
] | Join us on Wednesday, August 14th at noon Pacific for the
Homemade Integrated Circuits Hack Chat
with
Sam Zeloof
!
While most of us are content to buy the chips we need to build our projects, there’s a small group of hackers more interested in making the chips themselves. What it takes the big guys a billion-dollar fab... | 6 | 3 | [
{
"comment_id": "6171833",
"author": "Ren",
"timestamp": "2019-08-13T00:30:53",
"content": "I just can’t understand how I confused him with a wood craftsman!http://sammaloofwoodworker.com/B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6171848",
"... | 1,760,373,806.017744 | ||
https://hackaday.com/2019/08/12/locating-targets-with-charm-courtesy-of-a-life-size-portal-turret/ | Locating Targets With Charm Courtesy Of A Life Size Portal Turret | Maya Posch | [
"Misc Hacks",
"News",
"Robots Hacks",
"Weapons Hacks"
] | [
"nerf gun",
"portal turret",
"turret"
] | What better way to count down the last 7 weeks to a big hacker camp like SHA2017 than by embarking on a last-minute, frantic build? That was [Yvo]’s thought when he decided to make a life-sized version of the adorably lethal turrets from the Valve’s Portal video games. Since that build made it to the finish line back t... | 6 | 5 | [
{
"comment_id": "6171751",
"author": "DainBramage",
"timestamp": "2019-08-12T18:07:13",
"content": "Okay, now that is a cool build!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6171834",
"author": "Ren",
"timestamp": "2019-08-13T00:35:48",
"conte... | 1,760,373,805.967613 | ||
https://hackaday.com/2019/08/12/what-happens-to-tesla-when-the-sleeping-auto-giants-awake/ | What Happens To Tesla When The Sleeping Auto Giants Awake? | Jenny List | [
"car hacks",
"Current Events",
"Hackaday Columns",
"Transportation Hacks"
] | [
"electric cars",
"ford",
"jaguar",
"mini",
"tesla",
"vw"
] | The history of automotive production is littered with the fallen badges of car companies that shone brightly but fell by the wayside in the face of competition from the industry’s giants. Whether you pine for an AMC, a Studebaker, or a Saab, it’s a Ford or a Honda you’ll be driving in 2019.
In the world of electric car... | 158 | 36 | [
{
"comment_id": "6171665",
"author": "Earl Colby Pottinger",
"timestamp": "2019-08-12T14:05:50",
"content": "What does have to do with making home electronic projects?I thought this was a website about projects.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": ... | 1,760,373,806.386518 | ||
https://hackaday.com/2019/08/12/latex-bellows-from-scratch/ | Latex Bellows From Scratch | Brian McEvoy | [
"Musical Hacks"
] | [
"bellowphone",
"bellows",
"LaTeX",
"wind instrument"
] | You would be forgiven for thinking that the semi-spherical bulb [Len], from the Bellowphone channel, is holding is a toilet bowl float. It is a
bellows of his design
that is similar to the squeezable part of a bike horn but is more substantial and less irritating at six in the morning. These rubber squeeze balls are ol... | 17 | 7 | [
{
"comment_id": "6171642",
"author": "Damian Paradis",
"timestamp": "2019-08-12T11:38:45",
"content": "No school like old school. Old fashion printmaking techniques found their way into chip design (Lithography). Millennials discovered small scale printing presses a decade or so ago. Innovation is a... | 1,760,373,806.151152 | ||
https://hackaday.com/2019/08/12/an-msx-with-a-nintendo-controller/ | An MSX With A Nintendo Controller | Jenny List | [
"Retrocomputing"
] | [
"arduino nano",
"msx",
"n64",
"retrocomputing",
"retrogaming"
] | Console owners inhabit their own individual tribes depending upon their manufacturer of choice, and so often never the twain shall meet. But sometimes there are those what-if moments, could Mario have saved the princess more quickly through PlayStation buttons, or how would Sonic the Hedgehog have been with a Nintendo ... | 5 | 2 | [
{
"comment_id": "6171617",
"author": "anszom",
"timestamp": "2019-08-12T08:48:16",
"content": "so, where is the write-up?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6171626",
"author": "ZeroQI",
"timestamp": "2019-08-12T09:31:08",
... | 1,760,373,806.090936 | ||
https://hackaday.com/2019/08/11/fitness-trackers-dont-have-to-be-proprietary/ | Fitness Trackers Don’t Have To Be Proprietary | Jenny List | [
"Medical Hacks"
] | [
"fitness tracker",
"open source",
"simblee"
] | Fitness trackers have become a popular piece of consumer electronic equipment, with a range of models from a variety of manufacturers. Many of these commercial offerings, however, leave the consumer with the prospect of their data being drawn off to a cloud server and sold to the highest bidder, trading convenience for... | 6 | 4 | [
{
"comment_id": "6171618",
"author": "Aaron Christophel",
"timestamp": "2019-08-12T08:58:12",
"content": "Nice to see more Open Source Projects on fitness tracker devices, as mentioned in the article i already published a custom firmware for the I6HRC Fitness tracker, since then things have changed,... | 1,760,373,806.193425 | ||
https://hackaday.com/2019/08/11/bearing-reinforced-stepper-tackles-hefty-axial-loads/ | Bearing-reinforced Stepper Tackles Hefty Axial Loads | Sonya Vasquez | [
"3d Printer hacks",
"Misc Hacks"
] | [
"axial load",
"machine design",
"stepper motor",
"thrust bearing"
] | These days, it’s common among us hackers to load a stepper motor with forces in-line with their shaft–especially when we couple them to leadscrews or worm gears. Unfortunately, steppers aren’t really intended for this sort of loading, and doing so with high forces can destroy the motor. Fear not, though. If you find yo... | 32 | 11 | [
{
"comment_id": "6171581",
"author": "modmanpaul",
"timestamp": "2019-08-12T03:05:02",
"content": "Yes a few years ago I built an i3 variant printer called the i2 Samuel. It’s design had thrust bearings on the z to eliminate stress on the stepper",
"parent_id": null,
"depth": 1,
"replies... | 1,760,373,806.456974 | ||
https://hackaday.com/2019/08/13/shop-made-tools-turn-cheap-steel-into-telescoping-tubes/ | Shop-Made Tools Turn Cheap Steel Into Telescoping Tubes | Dan Maloney | [
"Tool Hacks"
] | [
"high speed steel",
"HSS",
"metalwork",
"seamed",
"seamless",
"Shaper",
"tubing",
"weld"
] | Beginning metalworkers are often surprised at just how cheap steel can be. It’s a commodity made by the gigaton, and there are always plenty of extra pieces and scraps left over from big projects that are available for pennies a pound. But what you’ve got is often not what you need, especially when it’s steel tubing wi... | 24 | 5 | [
{
"comment_id": "6171905",
"author": "Joel",
"timestamp": "2019-08-13T09:10:46",
"content": "For mild steel, I’d be tempted to try a worn/out-of-spec carbide annular-cutter with a guided alignment-bushing on a drive axle.I too would avoid risking a large spiral fluted reamer on raw weld chowderThere... | 1,760,373,806.559159 | ||
https://hackaday.com/2019/08/12/giving-the-amstrad-cpc-a-voice-and-a-drum-kit/ | Giving The Amstrad CPC A Voice And A Drum Kit | Erin Pinheiro | [
"Retrocomputing"
] | [
"amstrad cpc",
"chiptune",
"DECtalk",
"drum machine",
"midi controller",
"MIDI instrument",
"retro",
"sampler",
"speech synthesis"
] | Back in the ’80s, home computers weren’t capable of much in terms of audio or multimedia as a whole. Arguably, it wasn’t until the advent of 16-bit computers such as the Amiga that musicians could make soundtrack-quality music without having to plug actual studio gear up to their machines. [Michael Wessel] is trying to... | 7 | 3 | [
{
"comment_id": "6172084",
"author": "chaosbc",
"timestamp": "2019-08-13T21:09:21",
"content": "Very very cool project! I spent years of my youth on this computer. Good to see some talented people still rocking the beat out of it :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{... | 1,760,373,806.498962 | ||
https://hackaday.com/2019/08/12/kvm-foot-switch-in-a-few-steps/ | KVM Foot Switch In A Few Steps | Kristina Panos | [
"Lifehacks",
"Peripherals Hacks"
] | [
"4PDT",
"foot switch",
"footswitch",
"keyboard",
"kvm",
"usb"
] | [Radishmouse], despite the handle, is not a mouse guy. Give him a keyboard and he will get around just fine in any OS or program. As it is, he’s got a handful of ThinkPads, each running a different OS. He wanted to be able to switch his nice mechanical keyboard between two laptops without the hassle of unplugging and r... | 6 | 3 | [
{
"comment_id": "6171847",
"author": "Jim",
"timestamp": "2019-08-13T02:27:09",
"content": "This is what I’d use for the foot trigger on a 3D printed copy of a 40 mm Bofors automatic cannon. Yup, that’s what I’d use and the selector switch would be a piece of cake. Boston Dynamics could do the gun... | 1,760,373,806.727503 | ||
https://hackaday.com/2019/08/12/el-wire-makes-for-a-great-faux-neon-sign/ | EL Wire Makes For A Great Faux-Neon Sign | Lewin Day | [
"3d Printer hacks"
] | [
"el wire",
"neon sign",
"sign"
] | Neon signs are attractive, but require specialised tools and skills for their manufacture. If you don’t have time to learn glass blowing and source the right gasses, you’re pretty much out of luck. However, EL wire can give a similar aesthetic, and with an off-the-shelf power supply it is easy to hook up and get workin... | 11 | 6 | [
{
"comment_id": "6171840",
"author": "Ostracus",
"timestamp": "2019-08-13T01:31:27",
"content": "Kind of surprised I don’t see stuff like this in people’s battlestation* builds. There’s so much RGB this, and that.*Pics of new computer builds.",
"parent_id": null,
"depth": 1,
"replies": [... | 1,760,373,806.835123 | ||
https://hackaday.com/2019/08/12/that-e-cig-battery-probably-fits-into-sunglasses/ | That E-Cig Battery Probably Fits Into Sunglasses | Donald Papp | [
"how-to"
] | [
"battery",
"e-cigarette",
"li-po",
"Li-Poly",
"rechargeable",
"sunglasses"
] | This particular e-cigarette is a little bigger than a typical cigarette, with a matching battery.
E-cigarettes use electrical power to rapidly heat and vaporize a base liquid such as propylene glycol, and that power comes from a battery. These devices are functionally straightforward but it can be a messy process on th... | 20 | 8 | [
{
"comment_id": "6171776",
"author": "Ostracus",
"timestamp": "2019-08-12T20:05:02",
"content": "Just don’t drink lots of cinnamon whisky.https://www.healthline.com/nutrition/propylene-glycol#section3",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6171820",
... | 1,760,373,806.786114 | ||
https://hackaday.com/2019/08/12/paperledger-an-e-ink-cryptocurrency-ticker/ | PaperLedger: An E-Ink Cryptocurrency Ticker | Tom Nardi | [
"Microcontrollers",
"The Hackaday Prize",
"Wireless Hacks"
] | [
"2019 Hackaday Prize",
"cryptocurrency",
"display",
"e-ink",
"e-paper",
"ESP32",
"TTGO"
] | For a long time it seemed like e-ink displays were outside the reach of us lowly hackers, as beyond the handful of repurposed Kindles that graced these pages, we saw precious few projects utilizing this relatively exotic display. But that’s changed over the last couple of years, and we’re thrilled to start seeing hacke... | 6 | 4 | [
{
"comment_id": "6171761",
"author": "DurandA",
"timestamp": "2019-08-12T19:05:45",
"content": "Here is my take on it based on the Pi Zero:https://github.com/DurandA/inky-cryptochartThe above software pulls chart data from a web service and draws a black/red candlestick chart on a E-Ink display.",
... | 1,760,373,806.878995 | ||
https://hackaday.com/2019/08/12/the-death-of-a-weather-satellite-as-seen-by-sdr/ | The Death Of A Weather Satellite As Seen By SDR | Dan Maloney | [
"Featured",
"Interest",
"Radio Hacks",
"Slider",
"Space"
] | [
"dipole",
"nasa",
"noaa",
"QFH",
"RTL-SDR",
"satellite",
"sdr",
"weather",
"WXtoIMG"
] | What is this world coming to when a weather satellite that was designed for a two-year mission starts to fail 21 years after launch? I mean, really — where’s the pride these days?
All kidding aside, it seems like
NOAA-15
, a satellite launched in 1998 to monitor surface temperatures and other meteorologic and climatolo... | 26 | 12 | [
{
"comment_id": "6171753",
"author": "Darko Kulic",
"timestamp": "2019-08-12T18:10:30",
"content": "Too bad for NOAA-15.Are NOAA-16 and NOAA-17, mentioned in the article, alive? Is any other, similar, accessible for easy receive of data? :)",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,806.946569 | ||
https://hackaday.com/2019/08/10/bots-that-snag-the-hottest-fashion-while-breaking-social-trust-in-commerce/ | Bots That Snag The Hottest Fashion While Breaking Social Trust In Commerce | Mike Szczys | [
"cons"
] | [
"bot",
"botnet",
"bots",
"DEF CON",
"defcon 27",
"hype",
"reseller"
] | Scarcity on the Internet is the siren song of bot writers. Maybe you’ve lost an eBay bid in the last milliseconds, or missed out on a hacker con when tickets sold out in under a minute — your corporeal self has been outperformed by a bot. But maybe you didn’t know bots are on a buying frenzy in the hyped-up world of fa... | 17 | 8 | [
{
"comment_id": "6171437",
"author": "Ren",
"timestamp": "2019-08-11T02:33:19",
"content": "Bots that buy up the stuff the millisecond it becomes available, so the bot owners can resell at a YUGE markup.That sucks…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id":... | 1,760,373,807.006667 | ||
https://hackaday.com/2019/08/10/from-an-eye-to-an-eye-human-muscles-as-a-joystick/ | From An Eye To An Eye: Human Muscles As A Joystick | Inderpreet Singh | [
"Medical Hacks"
] | [
"HMI",
"lenses",
"softinterfaces"
] | The interface between humans and machines has been a constantly evolving field. Sure the computer mouse was a game-changer, but time moves on. We are now looking at integrating machines via soft HMIs for personal applications. A research team led by the University of California, San Diego has presented a
paper interfac... | 2 | 1 | [
{
"comment_id": "6171414",
"author": "Ren",
"timestamp": "2019-08-11T00:36:49",
"content": "Going from whirring robots to squishy robots…Sounds like another advance for sexbots.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6171415",
"author": "Ren"... | 1,760,373,807.045346 | ||
https://hackaday.com/2019/08/10/stepper-controlled-chop-saw-automates-a-tedious-job/ | Stepper-Controlled Chop Saw Automates A Tedious Job | Dan Maloney | [
"Tool Hacks"
] | [
"aluminum",
"arduino",
"cam",
"chop saw",
"cutoff",
"h-bridge",
"Isolation",
"stepper"
] | We’re not going to question why [Absorber Of Light] needs to cut a bazillion little fragments of aluminum stock. We assume his reasoning is sound, so all we’re interested in is
the automated chop saw
he built to make the job less tedious, and potentially less finger-choppy.
There are probably many ways to go about this... | 23 | 12 | [
{
"comment_id": "6171382",
"author": "lurch",
"timestamp": "2019-08-10T20:12:17",
"content": "So the offset cams are powering a higher power actuator instead of figuring out opto-isolation he just programmed the stepper to run the elevation of the blade",
"parent_id": null,
"depth": 1,
"... | 1,760,373,809.016692 | ||
https://hackaday.com/2019/08/10/those-elevator-emergency-call-buttons-are-actually-pretty-janky/ | Those Elevator Emergency Call Buttons Are Actually Pretty Janky | Mike Szczys | [
"cons"
] | [
"DEF CON",
"defcon 27",
"elevator",
"elevator hacking",
"phone phreaking"
] | We’ve all stared at that button in the elevator with the phone icon on it, supremely confident that if the cab came to a screeching halt while rocketing up to the 42nd floor, a simple button press would be your salvation. To be fair, that’s probably true. But the entire system is not nearly as robust as most people thi... | 26 | 9 | [
{
"comment_id": "6171369",
"author": "DarwinSurvivor",
"timestamp": "2019-08-10T19:00:49",
"content": "As with most pen-tester talks, the real point of discussing these problems is to shed light on them in the hopes that the industry takes notice and starts fixing them.",
"parent_id": null,
... | 1,760,373,809.081767 | ||
https://hackaday.com/2019/08/10/660-fps-raspberry-pi-video-captures-the-moment-in-extreme-slo-mo/ | 660 FPS Raspberry Pi Video Captures The Moment In Extreme Slo-Mo | Sven Gregori | [
"digital cameras hacks",
"Raspberry Pi"
] | [
"camera",
"high speed video",
"raspberry pi",
"Raspberry pi camera",
"slow motion"
] | Filming in slow-motion has long become a standard feature on the higher end of the smartphone spectrum, and can turn the most trivial physical activity into a majestic action shot to share on social media. It also unveils some little wonders of nature that are otherwise hidden to our eyes: the formation of a lightning ... | 18 | 8 | [
{
"comment_id": "6171324",
"author": "NiHaoMike",
"timestamp": "2019-08-10T14:08:59",
"content": "Would the Pi 4, with its DDR4 memory, work better?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6171329",
"author": "AKA the A",
"timestamp": ... | 1,760,373,809.206082 | ||
https://hackaday.com/2019/08/10/a-keyboard-interface-for-your-sinclair-zx/ | A Keyboard Interface For Your SInclair ZX | Jenny List | [
"Retrocomputing"
] | [
"keyboard",
"sinclair",
"ZX"
] | The SInclair ZX 8-bit computers of the early 1980s were masterpieces of economy, getting the most out of minimal hardware. The cassette tape interface was a one-bit port, the video was (on the first two models anyway) created by the processor itself rather than a CRT controller, and the keyboard? No fancy keyboard cont... | 11 | 4 | [
{
"comment_id": "6171348",
"author": "Mark S.",
"timestamp": "2019-08-10T16:46:56",
"content": "Very interesting project because the keyboard is the weakest link in all ZX computers and very prone to fail over time. Even the third-party keyboards from the era were not very good.",
"parent_id": n... | 1,760,373,808.949391 | ||
https://hackaday.com/2019/08/10/acoustic-lenses-show-sound-can-be-focused-like-light/ | Acoustic Lenses Show Sound Can Be Focused Like Light | Donald Papp | [
"3d Printer hacks",
"Musical Hacks"
] | [
"3d printed",
"acoustic",
"acoustic lens",
"lens",
"research",
"sonic"
] | Acoustic lenses are remarkable devices that just got cooler. A recent presentation at SIGGRAPH 2019 showed that with the help of 3D printing,
it is possible to build the acoustic equivalent of optical devices
. That is to say, configurations that redirect or focus sound waves. One fascinating demonstration worked like ... | 30 | 12 | [
{
"comment_id": "6171311",
"author": "Luke",
"timestamp": "2019-08-10T10:08:59",
"content": "Refraction requires a change in the impedance of the medium, and it’s frequency dependent. In order to get a wider bandwidth, they need to change the impedance much more abruptly, but that leads to reflectio... | 1,760,373,809.150099 | ||
https://hackaday.com/2019/08/11/hackaday-links-august-11-2019/ | Hackaday Links: August 11, 2019 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"Amazon Prime Air",
"badgelife",
"BVLOS",
"cybersecurity",
"DEF CON",
"Dilbert",
"drone",
"hackers",
"hoodies",
"hoverboard",
"uav"
] | By the time this goes to press, DEFCON 27 will pretty much be history. But badgelife continues, and it’d be nice to have a way of keeping track of all the badges offered. Martin Lebel stepped up to the challenge with
a DEF CON 27 badgelife tracker
. He’s been tracking the scene since March, and there are currently more... | 13 | 7 | [
{
"comment_id": "6171561",
"author": "Str Alorman",
"timestamp": "2019-08-11T23:19:48",
"content": "http://www.joshmillard.com/markov/calvin/is very similar to the Hackaday Dilbert Mashup. Josh goes into a fair amount of detail as to how he’s making it work.",
"parent_id": null,
"depth": 1,
... | 1,760,373,809.262 | ||
https://hackaday.com/2019/08/11/esp8266-controls-tivo-over-the-network/ | ESP8266 Controls TiVo Over The Network | Tom Nardi | [
"classic hacks",
"home entertainment hacks",
"Software Development"
] | [
"Arduino Library",
"dvr",
"remote network control",
"telnet",
"TiVo"
] | Remember the TiVo? The set-top DVR that was once so popular of a hacking target that Hackaday had a dedicated subdomain for it has today largely faded into obscurity as time-shifted viewing has given way to Internet streaming services like Netflix and Hulu. But make no mistake, while the TiVo may no longer be the cente... | 13 | 8 | [
{
"comment_id": "6171556",
"author": "John H Resch",
"timestamp": "2019-08-11T22:20:09",
"content": "Today’s modern TiVo has the streaming services built into it and can record multiple channels simultaneously. When connected to a network your programs can be viewed remotely anywhere in the world, a... | 1,760,373,809.313153 | ||
https://hackaday.com/2019/08/11/nanovna-is-a-50-vector-network-analyzer/ | NanoVNA Is A $50 Vector Network Analyzer | Al Williams | [
"Tool Hacks"
] | [
"antenna",
"Signals",
"vector network analyzer",
"vna"
] | There was a time when oscilloscopes were big and expensive. Now you can get scopes of various sizes and capabilities on nearly any budget. Vector network analyzers — VNAs — haven’t had quite the same proliferation, but
NanoVNA
may change that. [IMSAI Guy] bought one for about $50 and made a series of videos about it. S... | 45 | 16 | [
{
"comment_id": "6171525",
"author": "Luxonis-Brandon",
"timestamp": "2019-08-11T17:44:38",
"content": "I love this so!!! Going to look into if there are plans for higher-frequency models.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6269362",
"au... | 1,760,373,809.392002 | ||
https://hackaday.com/2019/08/11/switching-over-to-smps-for-efficiency/ | Switching Over To SMPS For Efficiency | Bryan Cockfield | [
"hardware"
] | [
"adjustable",
"lm2576",
"lm2576-adj",
"LM317",
"potentiometer",
"power supply",
"smps",
"switch mode"
] | [Hesam Moshiri] has built a variable
switch-mode power supply over on hackaday.io
. When prototyping a new circuit, often the goal is to get a proof-of-concept working as soon as possible to iron out all of the bugs it might have. The power supply can easily be an afterthought, and for smaller projects we might just re... | 30 | 8 | [
{
"comment_id": "6171492",
"author": "cyberteque",
"timestamp": "2019-08-11T14:18:26",
"content": "has anyone seen a schematic and/or built a dual rail supply with the LM2576?I’ve found a few schematics for inverting supplies, but not dual railit can’t be as simple as just using two LM2576s, can it?... | 1,760,373,809.589657 | ||
https://hackaday.com/2019/08/11/in-the-fast-moving-world-of-cnc-this-restored-router-is-an-antique/ | In The Fast Moving World Of CNC, This Restored Router Is An Antique | Jenny List | [
"cnc hacks"
] | [
"cnc",
"router",
"shopbot"
] | Large machine tools are often built to last a very long time, so it is not uncommon to find a lathe made in the 19th century still providing faithful service. The fundamental job of a lathe has not changed significantly in the intervening years, even though a modern lathe will have more features than its hundred-year-o... | 10 | 6 | [
{
"comment_id": "6171485",
"author": "Andy Pugh",
"timestamp": "2019-08-11T12:06:32",
"content": "If anyone else is faced with the same problem of needing anything other than step-dir then it might help to know that LinuxCNC can output a variety of step patterns. Either quadtrature, up/dwn or for ex... | 1,760,373,809.527615 | ||
https://hackaday.com/2019/08/11/diy-personal-assistant-robot-hears-and-sees-all/ | DIY Personal Assistant Robot Hears And Sees All | Adam Fabio | [
"Robots Hacks"
] | [
"machine learning",
"Mobile robot",
"raspberry pi",
"robot",
"rover",
"tensorflow",
"webcam"
] | Who wouldn’t want a robot that can fetch them a glass of water? [Saral Tayal] didn’t just think that, he jumped right in and built his own
personal assistant robot
. This isn’t just some remote-controlled rover though. The robot actually listens to his voice and recognizes his face.
The body of the robot is the common ... | 2 | 2 | [
{
"comment_id": "6171484",
"author": "CodeReclaimers",
"timestamp": "2019-08-11T12:00:03",
"content": "Kudos to Saral for the great video overview and thorough documentation, and thank you Adam for posting it here.On a totally unrelated note, I feel like I should invest more time into documenting my... | 1,760,373,809.727716 | ||
https://hackaday.com/2019/08/10/new-bluetooth-5-channel-hopping-reverse-engineered-for-jamming-and-hijacking/ | New Bluetooth 5 Channel Hopping Reverse Engineered For Jamming And Hijacking | Mike Szczys | [
"cons",
"Security Hacks",
"Wireless Hacks"
] | [
"ble",
"bluetooth",
"bluetooth low energy",
"BtleJack",
"channel hopping",
"CSA #2",
"DEF CON",
"defcon 27"
] | Bluetooth Low Energy (BLE) 5 has been around since 2016 with the most recent version 5.2 published just this year. There’s not much hardware out there that’s using the new hotness. That didn’t stop [
Damien Cauquil
] from picking apart BLE 5’s new frequency hopping techniques and updating his BtleJack tool to allow sni... | 9 | 2 | [
{
"comment_id": "6171466",
"author": "Gregg Eshelman",
"timestamp": "2019-08-11T07:47:09",
"content": "So it’s using a one time pad while leaving it possible to figure out which one of a fixed number of OTP possibilities both ends of the connection decide to use.Far more secure would be to make a co... | 1,760,373,809.789818 | ||
https://hackaday.com/2019/08/09/individual-neopixels-make-up-this-lightsabers-blade/ | Individual Neopixels Make Up This Lightsaber’s Blade | Rich Hawkes | [
"LED Hacks"
] | [
"lightsaber",
"Neopixels",
"proffieboard",
"star wars"
] | The lightsaber is an iconic weapon from the Star Wars franchise, designed in all sorts of shapes and colors. Several fan-made versions have been built as well, quite a few of which use the almost ubiquitous neopixel. [Tirenoth] decided to build his first lightsaber
using a series of neopixels
, but decided on a unique ... | 7 | 6 | [
{
"comment_id": "6171279",
"author": "gregg4",
"timestamp": "2019-08-10T05:13:04",
"content": "Huh! A Jedi he is not.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6171288",
"author": "LambdaMikel",
"timestamp": "2019-08-10T06:30:00",
"content": "... | 1,760,373,809.831576 | ||
https://hackaday.com/2019/08/09/a-new-way-to-remote-terminal/ | A New Way To Remote Terminal | Bryan Cockfield | [
"Network Hacks"
] | [
"https",
"network",
"raspberry pi",
"remote",
"share",
"terminal",
"tls",
"tty-share",
"url"
] | Thanks to the wonders of the internet, collaborating with others across great distances has become pretty simple. It’s easy now to share computer desktops over a network connection, and even take control of another person’s computer if the need arises. But these graphical tools are often overkill, especially if all we ... | 14 | 9 | [
{
"comment_id": "6171265",
"author": "JusKiddin",
"timestamp": "2019-08-10T02:28:32",
"content": "is Chrome broswer",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6171266",
"author": "Andrew Innes",
"timestamp": "2019-08-10T02:37:36",
"content": "W... | 1,760,373,809.885197 | ||
https://hackaday.com/2019/08/09/def-con-27-the-badge-talk-or-that-one-time-joe-grand-sourced-30000-gemstones/ | DEF CON 27: The Badge Talk; Or That One Time Joe Grand Sourced 30,000 Gemstones | Mike Szczys | [
"cons"
] | [
"badgelife",
"DEF CON",
"defcon 27",
"gems",
"hardware badge",
"joe grand",
"quartz crystal"
] | Yesterday we published
a first look at the hardware found on the DEF CON 27 badge
. Sporting a magnetically coupled wireless communications scheme rather than an RF-based one, and an interesting way to attach the lanyard both caught my attention right away. But the gemstone faceplate and LED diffuser has its own incred... | 12 | 9 | [
{
"comment_id": "6171251",
"author": "Dj Biohazard",
"timestamp": "2019-08-09T23:08:54",
"content": "“I’m glad that Joe Gran spent time in his talk”What was that son? Can you give me my dentures?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6171255",
"au... | 1,760,373,810.053423 | ||
https://hackaday.com/2019/08/09/3d-printing-makes-modular-payload-for-model-rocket/ | 3D Printing Makes Modular Payload For Model Rocket | Donald Papp | [
"3d Printer hacks",
"Microcontrollers"
] | [
"3d printed",
"gps",
"model rocket",
"payload",
"rocketry",
"rockets"
] | Putting payloads into model rockets can be more complex than simply shoving stuff into an open spot, so [concretedog] put some work into
making a modular payload tube
for his current rocket. The nose cone for his rocket is quite large, so he opted to give it a secure payload area that doesn’t compromise or interfere wi... | 2 | 2 | [
{
"comment_id": "6171453",
"author": "Micha",
"timestamp": "2019-08-11T04:53:55",
"content": "I‘m sorry, but it looks like an unisex sextoy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6171782",
"author": "Jon Grimes",
"timestamp": "2019-08-12T20:15... | 1,760,373,810.176424 | ||
https://hackaday.com/2019/08/09/a-macro-keyboard-in-a-micro-package/ | A Macro Keyboard In A Micro Package | Erin Pinheiro | [
"Peripherals Hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"arduino",
"Arduino Leonardo",
"atmega",
"cherry switches",
"diy keyboard",
"keyboard",
"knob",
"mechanical keyboard"
] | Remember back in the early-to-mid 2000s when pretty much every cheap USB keyboard you could find started including an abundance of media keys in its layout? Nowadays, especially if you have a customized or reduced-sized mechanical keyboard, those are nowhere to be seen. Whenever our modern selves need those extra keys,... | 9 | 2 | [
{
"comment_id": "6171231",
"author": "Alex Rossie",
"timestamp": "2019-08-09T19:35:18",
"content": "What we really need is foot pedals for Ctrl and Meta.It might not be faster but it’ll be much more ergonomic.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6... | 1,760,373,810.227752 | ||
https://hackaday.com/2019/08/09/eric-weinhoffer-covers-enclosure-design-and-manufacturing-tech-during-hackaday-prize-mentor-session/ | Eric Weinhoffer Covers Enclosure Design And Manufacturing Tech During Hackaday Prize Mentor Session | Lewin Day | [
"Hackaday Columns",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"bolt",
"Mentor Sessions"
] | Eric Weinhoffer has had plenty of experience in the product design arena, and
this hard-earned knowledge is readily apparent in his mentor session
for The Hackaday Prize. These serve to link up Prize entrants with industry experts in order to help them take their projects into production. You still have time to get in ... | 1 | 1 | [
{
"comment_id": "6171378",
"author": "Matt Thistle",
"timestamp": "2019-08-10T19:34:38",
"content": "FYI Makerbot was not open source! Maybe for the first year. Not a great example of open source success. Want a good example….Adafruit!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,373,810.318573 | ||
https://hackaday.com/2019/08/09/hackaday-podcast-030-seven-years-of-rtl-sdr-3d-printing-optimized-for-the-eye-sega-audiophile-swimming-in-brighteners/ | Hackaday Podcast 030: Seven Years Of RTL-SDR, 3D Printing Optimized For The Eye, Sega Audiophile, Swimming In Brighteners | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"biquinary",
"Hackaday Podcast",
"pid",
"RTL-SDR",
"sega",
"topology optimization",
"uv laser"
] | Hackaday Editors Mike Szczys and Elliot Williams curate the awesome hacks from the past week. On this episode, we marvel about the legacy RTL-SDR has had on the software-defined radio scene, turn a critical ear to 16-bit console audio hardware, watch generative algorithms make 3D prints beautiful, and discover why prin... | 3 | 1 | [
{
"comment_id": "6171487",
"author": "Pete",
"timestamp": "2019-08-11T12:28:42",
"content": "Any reason why the podcast no longer appears on acast?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6171535",
"author": "Elliot Williams",
"timesta... | 1,760,373,810.270933 | ||
https://hackaday.com/2019/08/08/first-look-at-def-con-27-official-badge-kingpin-is-back/ | First Look At DEF CON 27 Official Badge; Kingpin Is Back! | Mike Szczys | [
"cons",
"Featured",
"Slider"
] | [
"badge life",
"DEF CON",
"defcon 27",
"hardware badge",
"joe grand",
"official badge"
] | The first big surprise Vegas had in store for everyone is that the DEF CON badge is an electronic badge this year. It’s traditionally been the DC practice to alternate years between electronic and non-electronic badges.
Last year we had a fantastic electronic badge designed by the ToyMakers
, so I had expected somethin... | 15 | 7 | [
{
"comment_id": "6170983",
"author": "rclark",
"timestamp": "2019-08-08T21:34:53",
"content": "Neat. I never ran into communications using “near field magnetic induction (NFMI)” before. Never even occurred to me. Obviously it is for near point to point comm, but there might be some interesting ... | 1,760,373,811.309777 | ||
https://hackaday.com/2019/08/08/cnc-machine-rolls-up-an-axis-to-machine-pvc-pipe/ | CNC Machine Rolls Up An Axis To Machine PVC Pipe | Dan Maloney | [
"cnc hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"cnc",
"cylinder",
"milling",
"plastic",
"PVC",
"rotary",
"router",
"sewer pipe"
] | Whether it’s wood, metal, plastic, or otherwise, when it comes to obtaining materials for your builds, you have two choices: buy new stock, or scrounge what you can. Fresh virgin materials are often easier to work with, but it’s satisfying to get useful stock from unexpected sources.
This CNC router for PVC pipe
is a g... | 31 | 15 | [
{
"comment_id": "6170924",
"author": "Arthur Wolf",
"timestamp": "2019-08-08T18:41:33",
"content": "Well I’ve been saying this a lot recently, lots of cool CNC projects here lately, but : Creator of his awesome machine, if you want a free Smoothieboard board, it is yours, just ask and you will obtai... | 1,760,373,810.549284 | ||
https://hackaday.com/2019/08/08/the-geniac-lives-again/ | The GENIAC Lives Again | Tom Nardi | [
"classic hacks",
"Toy Hacks"
] | [
"early computer",
"educational toy",
"interactive narrative",
"logic toy",
"replica"
] | [Mike Gardi] credits his professional successes in the world of software development on the fact that he had access to logic-based educational games of a sort that simply don’t exist anymore. Back in the 1960s, kids who were interested in electronics or the burgeoning world of computers couldn’t just pick up a microcon... | 31 | 10 | [
{
"comment_id": "6170909",
"author": "Adam",
"timestamp": "2019-08-08T17:52:57",
"content": "I saw a book on how to build one of those “computers” Not this one specifically, I think. It was around 1997.The local collage had a thin blue volume on a kid’s “almost automatic” computer. It was organized... | 1,760,373,811.492892 | ||
https://hackaday.com/2019/08/08/cash-register-hotkey-board-is-on-the-money/ | Cash Register Hotkey Board Is On The Money | Kristina Panos | [
"Peripherals Hacks"
] | [] | When presented with a pile of free electronics, sometimes you grab things for their ‘someday’ potential. Other times, you know exactly what you’re after. [Bryce] got a big old cash register for free from school because they’ve moved on to using Square or something. He scored two VFDs and a solenoid as a side effect, bu... | 8 | 5 | [
{
"comment_id": "6170989",
"author": "Bryce Dombrowski",
"timestamp": "2019-08-08T22:05:58",
"content": "Thanks for the writeup Kristina!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6171021",
"author": "Casual Observer",
"timestamp": "2019-08-08T23:... | 1,760,373,810.595496 | ||
https://hackaday.com/2019/08/08/putting-carbs-on-a-miata-because-its-awesome/ | Putting Carbs On A Miata, Because It’s Awesome | Lewin Day | [
"car hacks",
"Engine Hacks",
"Featured",
"Slider"
] | [
"car",
"car hacks",
"carburettor",
"carby",
"mazda miata",
"mazda MX-5",
"mazda mx5",
"miata",
"mx-5",
"mx5"
] | Carburettors versus electronic fuel injection (EFI); automotive fans above a certain age will be well versed in the differences. While early EFI systems had their failings, the technology brought with it a new standard of reliability and control. By the early 1990s, the vast majority of vehicles were sold with EFI, and... | 101 | 34 | [
{
"comment_id": "6170859",
"author": "Alex",
"timestamp": "2019-08-08T14:20:34",
"content": "That’s awesome! Dual webbers always look nice too.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6171284",
"author": "Hank R. Hill",
"timestamp": "... | 1,760,373,811.193881 | ||
https://hackaday.com/2019/08/08/this-wifi-spoofing-syringe-is-for-external-use-only/ | This WiFi Spoofing Syringe Is For External Use Only | Tom Nardi | [
"LED Hacks",
"Microcontrollers",
"Wireless Hacks"
] | [
"beacon",
"ESP8266",
"fake network",
"huzzah",
"pressure sensor",
"RGB LED",
"wifi"
] | A browse through his collected works will tell you that [El Kentaro] loves to build electronics into interesting enclosures, so when he realized there’s enough room inside a 150 ml plastic syringe to mount an ESP8266, a battery, and a copious amount of RGB LEDs,
the “Packet Injector” was the inescapable result
.
Grante... | 6 | 6 | [
{
"comment_id": "6170822",
"author": "Saabman",
"timestamp": "2019-08-08T11:40:41",
"content": "Love itJust what I need to give the IT Guys at work ( health care facility)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6170861",
"author": "kdev",
"time... | 1,760,373,810.766794 | ||
https://hackaday.com/2019/08/08/kitty-litter-and-broken-light-bulbs-power-this-homebrew-gas-chromatogram/ | Kitty Litter And Broken Light Bulbs Power This Homebrew Gas Chromatograph | Dan Maloney | [
"chemistry hacks",
"Misc Hacks"
] | [
"bentonite",
"gas chromatography",
"GC",
"helium",
"kitty litter",
"sample",
"sparge",
"volatile"
] | We’re always on the lookout for unexpected budget builds here at Hackaday, and stumbling across a low-cost, DIY version of an instrument that sells for tens of thousands of dollars is always a treat. And so when we saw a tip for
a homebrew gas chromatograph
in the tips line this morning, we jumped on it. (Video embedde... | 29 | 16 | [
{
"comment_id": "6170784",
"author": "tomás zerolo",
"timestamp": "2019-08-08T08:19:15",
"content": "Chromatograph.I’ve the hunch that what you’re describing there is called “Chromatograph”. Chromatograms are its products. It’s a meta-chromatogram, or in OO parlance a chromatograph factory :-)",
... | 1,760,373,810.835913 | ||
https://hackaday.com/2019/08/09/laser-trip-wire-hides-what-youre-not-working-on/ | Laser Trip Wire Hides What You’re (Not) Working On | Tom Nardi | [
"computer hacks",
"Laser Hacks",
"Peripherals Hacks"
] | [
"laser",
"privacy",
"Time of Flight Sensor",
"tripwire",
"usb hid"
] | We assume your office policy allows for reading Hackaday during work hours. But what about cruising reddit, or playing Universal Paperclips? There’s a special kind of stress experienced when attempting to keep one eye on your display and the other on the doorway; all the while convinced the boss is about to waltz into ... | 15 | 9 | [
{
"comment_id": "6171187",
"author": "djsmiley2k",
"timestamp": "2019-08-09T15:37:19",
"content": "I’ve not fully read/watched yet, but GreatScott! did one of these two, just a little while ago:https://www.youtube.com/watch?v=0fDPBtbsUgc",
"parent_id": null,
"depth": 1,
"replies": []
}... | 1,760,373,810.895698 | ||
https://hackaday.com/2019/08/09/this-week-in-security-swapgs-malicious-shaders-more-ios-woes-and-wpa3/ | This Week In Security: SWAPGS, Malicious Shaders, More IOS Woes, And WPA3 | Jonathan Bennett | [
"computer hacks",
"Hackaday Columns",
"Security Hacks"
] | [
"ios",
"Spectre",
"SWAPGS",
"This Week in Computer Security"
] | I’m sure you’ve heard of
Spectre
, which was the first of many speculative execution vulnerabilities found in modern processors. A new one just popped up this week. At Blackhat on Tuesday, CVE-2019-1125 was announced by Bitdefender as
SWAPGS
.
SWAPGS is an x86_64 instruction that is intended for use in context switchin... | 19 | 10 | [
{
"comment_id": "6171169",
"author": "gudenau",
"timestamp": "2019-08-09T14:13:32",
"content": "One of the first xBox 360 vulnerabilities was exploited to load a custom shader that then exploited further systems to take over the console.I’m sure there are even earlier examples of shader exploits.",
... | 1,760,373,810.955335 | ||
https://hackaday.com/2019/08/09/pop-up-outlet-helps-make-the-most-of-a-tiny-shop/ | Pop-Up Outlet Helps Make The Most Of A Tiny Shop | Dan Maloney | [
"Tool Hacks"
] | [
"bench",
"optimization",
"outlet strip",
"pneumatic spring",
"power",
"shop",
"small",
"tiny"
] | You’ve got to admire the steps some people take to squeeze a shop into a small space. Finding ways to pack in ever more tools and to work on bigger and bigger projects become ends to themselves for some, and the neat little tricks they find to do so can be really instructive.
Take
this workbench pop-up outlet strip
for... | 8 | 6 | [
{
"comment_id": "6171142",
"author": "dave",
"timestamp": "2019-08-09T11:52:08",
"content": "Coincidence I watched it yesterday.It’s a nice idea but it’s a lot of effort with a lot of drawbacks as per the comments in the video.He could have put lots of outlets on each side of the bench. He could hav... | 1,760,373,811.242258 | ||
https://hackaday.com/2019/08/09/3d-printed-extension-for-extreme-macro-photography-includes-lens-electronic-control/ | 3D-Printed Extension For Extreme Macro Photography Includes Lens Electronic Control | Jenny List | [
"3d Printer hacks",
"digital cameras hacks"
] | [
"lens",
"lens extension",
"macro"
] | Macro photography — the art of taking pictures of tiny things — can be an expensive pastime. Good lenses aren’t cheap, and greater magnification inflates the price even further. One way to release a bit more performance from your optics comes in the form of an extension tube, which mounts your lens further from the cam... | 24 | 6 | [
{
"comment_id": "6171107",
"author": "denis",
"timestamp": "2019-08-09T08:30:30",
"content": "Im glad the macro photo of the contacts is nice and sharp",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6171135",
"author": "Jay",
"timestamp": "2019-08-09T1... | 1,760,373,811.554699 | ||
https://hackaday.com/2019/08/08/designing-an-advanced-autonomous-robot-goose/ | Designing An Advanced Autonomous Robot: Goose | Pat Whetman | [
"Raspberry Pi",
"Robots Hacks",
"Software Hacks"
] | [
"autonomous robot",
"goose",
"ros"
] | Robotics is hard, maybe not quite as difficult as astrophysics or understanding human relationships, but designing a
competition winning bot
from scratch was never going to be easy. Ok, so [Paul Bupe, Jr’s] robot, named ‘Goose’, did not quite win the competition, but we’re very interested to learn what golden eggs it m... | 9 | 4 | [
{
"comment_id": "6171067",
"author": "Mike Massen",
"timestamp": "2019-08-09T05:11:02",
"content": "Hmm, nice one lots of good technical effort, well done. Thanks for post.When I saw odometry followed by unscented Kalman in the block diagram I got impression for a second or two the robot was designe... | 1,760,373,811.362373 | ||
https://hackaday.com/2019/08/08/field-expedient-soldering-iron-will-do-in-a-pinch/ | Field Expedient Soldering Iron Will Do In A Pinch | Al Williams | [
"Tool Hacks"
] | [
"lighter",
"soldering",
"soldering iron"
] | If you think [Dubious Engineering]’s moniker is just a name, have a look at the pretty terrible
soldering iron hacked out of a lighter
in the video below. No one is suggesting this is a good idea but in an emergency, maybe it would come in handy. We liked the use of a chopstick and the formation of a heat exchanger wit... | 16 | 11 | [
{
"comment_id": "6171043",
"author": "Saabman",
"timestamp": "2019-08-09T02:13:22",
"content": "Got desperate one day my wife was out and the soldering iron was in the car and I NEEDED to solder up a db25 connector for a serial link.Screwdriver heated up in the flame of the gas stove. It was terribl... | 1,760,373,811.611257 | ||
https://hackaday.com/2019/08/08/3d-printing-glass/ | 3D Printing Glass | Al Williams | [
"3d Printer hacks",
"Slider"
] | [
"3d printing",
"glass",
"glass casting",
"kiln",
"microwave kiln",
"refractory"
] | For most of us, 3D printing means printing in plastic of some sort — either filament or photo resin. However, we have all wanted to print in other materials — especially more substantial materials. Metal printers exist but they aren’t cheap. However, it is possible to print molds and cast metal parts using them. [Amos ... | 26 | 10 | [
{
"comment_id": "6171023",
"author": "Nick",
"timestamp": "2019-08-08T23:45:36",
"content": "Reminds me of another Article I saw once about 3d printing with glass.https://hackaday.com/2011/06/25/selective-solar-sintering-with-sand/",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,811.692826 | ||
https://hackaday.com/2019/08/07/a-post-mortem-for-an-electric-car-charger/ | A Post-Mortem For An Electric Car Charger | Tom Nardi | [
"car hacks",
"green hacks"
] | [
"charger",
"electric vehicle",
"failure analysis",
"overheat",
"thermal issues"
] | [Mastro Gippo] recently purchased a wall mounted charger for his electric car that looked great and had all the bells and whistles he wanted. There was only one problem: the thing burned up on him. Looking to find out how this seemingly high-end piece of hardware gave up the ghost so easily,
he took it apart and tried ... | 46 | 17 | [
{
"comment_id": "6170742",
"author": "RandyKC",
"timestamp": "2019-08-08T05:12:20",
"content": "Relying on the manufacturer to get the certification usually leads to shortcuts.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6170900",
"author": "Klaus... | 1,760,373,811.817296 | ||
https://hackaday.com/2019/08/07/blue-pill-makes-cheap-but-powerful-morse-tutor/ | Blue Pill Makes Cheap But Powerful Morse Tutor | Al Williams | [
"Arduino Hacks",
"ARM"
] | [
"arduino",
"blue pill",
"bluepill",
"cw",
"github",
"morse",
"morse code",
"stm32"
] | [W8BH] attended a talk by another ham, [W8TEE] that showed a microcontroller sending and receiving Morse code. He decided to build his own, and documented his results in
an 8 part tutorial
. He’s using the Blue Pill board and the resulting device sends code with paddles, sends canned text, provides an LCD with a rotary... | 2 | 2 | [
{
"comment_id": "6171065",
"author": "2ftg",
"timestamp": "2019-08-09T04:40:54",
"content": "Oh nice, this is quite close to what I was looking for.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6171184",
"author": "Ken KM4NFQ",
"timestamp": "2019-08-... | 1,760,373,811.729776 | ||
https://hackaday.com/2019/08/07/a-better-embroidery-machine-with-3d-printing-and-common-parts/ | A Better Embroidery Machine, With 3D Printing And Common Parts | Donald Papp | [
"3d Printer hacks",
"cnc hacks"
] | [
"3d printed",
"android",
"arduino",
"bluetooth",
"cnc",
"diy",
"embroidery",
"embroidery machine",
"openbuilds"
] | In concept, an everyday sewing machine could make embroidery a snap: the operator would move the fabric around in any direction they wish while the sewing machine would take care of slapping down stitches of colored thread to create designs and filled areas. In practice though, getting good results in this way is quite... | 31 | 10 | [
{
"comment_id": "6170691",
"author": "Arthur Wolf",
"timestamp": "2019-08-07T23:12:35",
"content": "Hey creator of this machine, if you see this, and want a Smoothieboard for the next version of your machine, hit me up atwolf.arthur@gmail.comI’ll give you one for free, as well as any help you might ... | 1,760,373,811.957423 | ||
https://hackaday.com/2019/08/07/arduino-traffic-light-sings-the-song-of-its-people/ | Arduino Traffic Light Sings The Song Of Its People | Tom Nardi | [
"Arduino Hacks",
"classic hacks"
] | [
"piezo speaker",
"spectrum analyzer",
"tones",
"traffic light"
] | Getting an old traffic light and wiring it up to do its thing inside your house isn’t exactly a new trick; it’s so common that it wouldn’t normally pass muster for these hallowed pages. Even using one up to show the real-time status of your build or system resource utilization would be pushing it at this point. To get ... | 29 | 11 | [
{
"comment_id": "6170643",
"author": "Nate B",
"timestamp": "2019-08-07T20:12:17",
"content": "Traffic lights make noise?!?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6170649",
"author": "sjm4306",
"timestamp": "2019-08-07T20:23:44",
... | 1,760,373,811.884445 | ||
https://hackaday.com/2019/08/07/workbench-fume-extractor-sucks-but-has-a-charming-personality/ | Workbench Fume Extractor Sucks, But Has A Charming Personality | Erin Pinheiro | [
"The Hackaday Prize",
"Tool Hacks"
] | [
"2019 Hackaday Prize",
"ARM Cortex-M4",
"CircuitPython",
"fume extractor",
"ir camera",
"ItsyBitsy",
"sampled audio",
"solder fume extractor",
"soldering",
"soldering fumes"
] | Shop safety is important regardless of what kind of work you do. For those of us soldering, that means extracting the noxious fumes released by heating up the solder flux used in our projects. [yesnoio] brings to us
his own spin on the idea of a fume extractor
, and it pulls out all stops with bells and whistles to spa... | 10 | 4 | [
{
"comment_id": "6170619",
"author": "Kevin Kessler",
"timestamp": "2019-08-07T18:34:02",
"content": "Doesn’t this get in the way of actually seeing what you are trying to solder?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6171418",
"author": "Wo... | 1,760,373,812.012323 | ||
https://hackaday.com/2019/08/07/holey-moley-fixing-the-mars-insight-mole/ | Holey Moley: Fixing The Mars InSight Mole | Dan Maloney | [
"Featured",
"Interest",
"Original Art",
"Slider",
"Space"
] | [
"duricrust",
"mars",
"nasa",
"The Mole"
] | In the early 1990s, NASA experienced a sea change in the way it approached space exploration. Gone were the days when all their programs would be massive projects with audacious goals. The bulk of NASA’s projects would fall under the Discovery Project and hew to the mantra “faster, better, cheaper,” with narrowly focus... | 23 | 10 | [
{
"comment_id": "6170661",
"author": "Carl Vehse",
"timestamp": "2019-08-07T21:07:49",
"content": "“faster, better, cheaper” …. pick any two.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6171604",
"author": "wolfy02",
"timestamp": "2019-08... | 1,760,373,812.209408 | ||
https://hackaday.com/2019/08/07/punch-those-hole-drilling-blues-away-with-a-homebrew-punching-tool/ | Punch Those Hole-Drilling Blues Away With A Homebrew Punching Tool | Dan Maloney | [
"Tool Hacks"
] | [
"aluminum",
"die",
"drill",
"hole",
"led",
"metalwork",
"punch",
"punching",
"steel",
"tig",
"video wall"
] | Four times the holes, four times the trouble. With the fate of repetitive motion injury looming due to the need to drill 1,200 holes, [bitluni] took matters into his own hands and built
this nifty DIY hole punch
for light-gauge sheet metal.
A little backstory will probably help understand why [bitluni] needs so many ho... | 6 | 5 | [
{
"comment_id": "6170591",
"author": "Dave",
"timestamp": "2019-08-07T17:13:14",
"content": "Very nicely done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6170610",
"author": "ogpak",
"timestamp": "2019-08-07T18:07:34",
"content": "You could’ve ... | 1,760,373,812.05528 | ||
https://hackaday.com/2019/08/07/new-teensy-4-0-blows-away-benchmarks-implements-self-recovery-returns-to-smaller-form/ | New Teensy 4.0 Blows Away Benchmarks, Implements Self-Recovery, Returns To Smaller Form | Ted Yapo | [
"Featured",
"Microcontrollers",
"News",
"Reviews",
"Slider"
] | [
"arduino",
"Cortex M7",
"development board",
"Teensy 4.0",
"teensyduino"
] | Paul Stoffregen did it again:
the Teensy 4.0 has been released
. The latest in the Teensy microcontroller development board line, the 4.0 returns to the smaller form-factor last seen with the 3.2, as opposed to the larger 3.5 and 3.6 boards.
Don’t let the smaller size fool you; the 4.0 is based on an ARM Cortex M7 runn... | 177 | 44 | [
{
"comment_id": "6170545",
"author": "Mike Massen",
"timestamp": "2019-08-07T15:09:22",
"content": "Hmm, nice write up, wide and interesting selection of peripherals for the size etc, thanks for post :-)Interested in others experience, might dabble with this for teaching, cheers",
"parent_id": n... | 1,760,373,812.444573 | ||
https://hackaday.com/2019/08/07/xpedit-is-a-mood-ring-for-mother-nature/ | Xpedit Is A Mood Ring For Mother Nature | Kristina Panos | [
"Lifehacks",
"Tool Hacks"
] | [
"adventuring",
"altitude",
"atmega328p",
"bme280",
"hiking",
"humidity",
"temperature"
] | Whether you’re in the woods or way up a mountain, basic knowledge of your environment can yield a lot of power. The more you know about the temperature, humidity, barometric pressure, and your altitude, the easier it is to predict future weather and stick to your height limits. Sure, you could buy some pre-fab doohicke... | 4 | 3 | [
{
"comment_id": "6170539",
"author": "sjw",
"timestamp": "2019-08-07T14:54:58",
"content": "The rotary control is an….. interesting choice. Doesn’t help with portability, does it?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6172970",
"author": "su... | 1,760,373,812.484825 | ||
https://hackaday.com/2019/08/07/fail-of-the-week-spinning-the-pripyat-ferris-wheel/ | Fail Of The Week: Spinning The Pripyat Ferris Wheel | Tom Nardi | [
"Misc Hacks"
] | [
"Chernobyl",
"Exclusion Zone",
"Pripyat",
"radiation",
"urban exploration"
] | This multifaceted fail comes to us straight from the Chernobyl Exclusion Zone, where a group of friends apparently decided that a fun weekend project would be trying to turn over the iconic ferris wheel in the Pripyat Amusement Park. The [Kreosan] crew documented their admittedly very creative attempt at suicide
in the... | 67 | 21 | [
{
"comment_id": "6170449",
"author": "macsimski",
"timestamp": "2019-08-07T08:42:59",
"content": "Missing tag: darwin award.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6170450",
"author": "Hugatry",
"timestamp": "2019-08-07T08:44:06",
"content"... | 1,760,373,812.642001 | ||
https://hackaday.com/2019/08/06/recreating-space-cameras/ | Recreating Space Cameras | Al Williams | [
"Space"
] | [
"apollo",
"camera",
"Hasselblad",
"mercury",
"nasa",
"photography"
] | [Cole Price] describes himself as a photographer and a space nerd. We’ll give that to him since his web site clearly shows a love of cameras and a love of the NASA programs from the 1960s. [Cole] has painstakingly made
replicas of cameras used in the space program
including a Hasselblad 500C used on a Mercury flight an... | 17 | 4 | [
{
"comment_id": "6170434",
"author": "steves",
"timestamp": "2019-08-07T07:32:16",
"content": "“The Mercury capsule was tiny, so the camera got an external viewfinder. The leather covering had to go too, since it could outgas in a vacuum. Fearing shiny reflections in the capsule window, the camera a... | 1,760,373,812.537823 | ||
https://hackaday.com/2019/08/06/preserved-lemons-on-a-hackers-budget/ | Preserved Lemons On A Hacker’s Budget | Brian McEvoy | [
"cooking hacks",
"how-to"
] | [
"container",
"cooking",
"cutting board",
"how-to",
"kitchen",
"knife",
"on the cheap",
"preserved lemons",
"preserving"
] | “If you wish to make an apple pie from scratch, you must first invent the universe.” [Carl Sagan]. If you wish to make
preserved lemons
the same way as [Uri Tuchman], you have to start with that mentality. Video also below. The recipe for [Uri]’s preserved lemons involves two ingredients
see
sea salt, and sliced lemons... | 15 | 9 | [
{
"comment_id": "6170401",
"author": "Saabman",
"timestamp": "2019-08-07T02:52:18",
"content": "I’m disappointed he didn’t make the pan to cook the fish",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6170404",
"author": "Garth Bock",
"timesta... | 1,760,373,812.690622 | ||
https://hackaday.com/2019/08/06/expensive-sony-lens-repair-reveals-shims-shifts/ | Expensive Sony Lens Repair Reveals Shims & Shifts | Richard Baguley | [
"digital cameras hacks",
"Repair Hacks"
] | [
"digital camera",
"lens",
"SLR"
] | The photographic hire company Lensrentals had a $2k Sony FE 135mm f1.8 GM camera lens returned with a problem: it was having issues focusing. So, they decided to do the obvious thing and
take it apart
. It’s a fascinating insight into some of the engineering that goes into a high-end camera lens.
That is perhaps a rath... | 5 | 4 | [
{
"comment_id": "6170384",
"author": "iraqigeek",
"timestamp": "2019-08-07T00:57:27",
"content": "There wasn’t much left to disassemble. The aperture mechanism is more or less the same in all lenses (save for the number of blades it drives), and the rear focusing group uses the same type of voice co... | 1,760,373,812.740921 | ||
https://hackaday.com/2019/08/06/forming-fipples-and-accompanying-accoutrements/ | Forming Fipples And Accompanying Accoutrements | Brian McEvoy | [
"Musical Hacks"
] | [
"bellowphone",
"bottle",
"fipple",
"instrument",
"PVC",
"whistle"
] | [Dr. Suess] created memorable books with minimal words and bright artwork. He inspired children and adults alike, and one of them, [Len], grew up to create wind instruments for the Bellowphone channel on YouTube. Behind the whimsy of his creations is significant engineering, and this time, we get to see the
constructio... | 7 | 5 | [
{
"comment_id": "6170345",
"author": "Larry",
"timestamp": "2019-08-06T20:50:50",
"content": "just a bunch of hot air!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6170355",
"author": "Comedicles",
"timestamp": "2019-08-06T21:10:37",
"content": "... | 1,760,373,812.782368 | ||
https://hackaday.com/2019/08/05/cb-radio-arduino-6-meter-ham-band/ | CB Radio + Arduino = 6 Meter Ham Band | Al Williams | [
"Arduino Hacks",
"Wireless Hacks"
] | [
"am",
"arduino",
"cb radio",
"dds",
"ham radio",
"ssb",
"synthesis"
] | Somehow [hvde] wound up with a CB radio that does AM and SSB on the 11 meter band. The problem was that the radio isn’t legal where he lives. So he decided to
change the radio over
to work on the 6 meter band, instead.
We were a little surprised to hear this at first. Most radio circuits are tuned to pretty close toler... | 13 | 8 | [
{
"comment_id": "6170070",
"author": "Saabman",
"timestamp": "2019-08-06T02:19:59",
"content": "The advantage of this over sdr is you get TX with a bit of power and no need to have a computer.These larger cbs are great to work on as well – large components and plenty of space.The mods required to do... | 1,760,373,812.832927 | ||
https://hackaday.com/2019/08/05/a-supercap-ups/ | A SuperCap UPS | Brian McEvoy | [
"Arduino Hacks",
"Raspberry Pi"
] | [
"arduino",
"on the cheap",
"quick-and-dirty",
"Raspi",
"Uninterruptible Power Supply",
"ups",
"usb"
] | If you treat your Pi as a wearable or a tablet, you will already have a battery. If you treat your Pi as a desktop you will already have a plug-in power supply, but how about if you live where mains power is unreliable? Like [jwhart1], you may consider building an
uninterruptible power supply into a USB cable
. UPSs be... | 61 | 14 | [
{
"comment_id": "6170027",
"author": "Hiro Protagonist",
"timestamp": "2019-08-05T23:19:51",
"content": "“Cheap batteries develop a memory if they’re drained often”This is an urban myth.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6170029",
"autho... | 1,760,373,813.58177 | ||
https://hackaday.com/2019/08/05/cat-feeder-adds-metrics-to-meow-mix/ | Cat Feeder Adds Metrics To Meow Mix | Kristina Panos | [
"classic hacks",
"Microcontrollers"
] | [
"AWS",
"cat feeder",
"cat scale",
"ESP32"
] | If there’s one thing any cat will work for, it’s food. Usually, this just consists of meowing and/or standing on your chest until you give up the goods. [DynamicallyInvokable] has a beautiful cat, Emma, who meows loudly for food at obscene hours of the morning. As she ages, it’s getting harder and more important to con... | 16 | 9 | [
{
"comment_id": "6169971",
"author": "drenehtsral",
"timestamp": "2019-08-05T20:21:49",
"content": "Now to add a scale to the litter box as well… (Seriously, though, you could then develop a fairly accurate idea of what was “in flight” in the food–>poop pipeline at any gi sn time).Not that most peop... | 1,760,373,812.887456 |
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