This CT Scan Of A PCB Is The Accidental ASMR We Didn’t Know We Needed
https://hackaday.com/2019/09/09/this-ct-scan-of-a-pcb-is-the-accidental-asmr-we-didnt-know-we-needed/
At risk of getting any ASMR buffs who might be reading cranky because there’s no audio, [Chris], or [@no1089] on Twitter, has gifted us with this visually stunning scan of his Maxim MAX86160 in-ear heart monitor mounted on a rigidflex PCB. You can take a look, in the video below …read more (https://hackaday.com/2019/09/09/this-ct-scan-of-a-pcb-is-the-accidental-asmr-we-didnt-know-we-needed/)
https://hackaday.com/2019/09/09/this-ct-scan-of-a-pcb-is-the-accidental-asmr-we-didnt-know-we-needed/
At risk of getting any ASMR buffs who might be reading cranky because there’s no audio, [Chris], or [@no1089] on Twitter, has gifted us with this visually stunning scan of his Maxim MAX86160 in-ear heart monitor mounted on a rigidflex PCB. You can take a look, in the video below …read more (https://hackaday.com/2019/09/09/this-ct-scan-of-a-pcb-is-the-accidental-asmr-we-didnt-know-we-needed/)
Core Rope Memory Makes One Of The Oddest LED Flashers We’ve Ever Seen
https://hackaday.com/2019/09/10/core-rope-memory-makes-one-of-the-oddest-led-flashers-weve-ever-seen/
If you’ve heard of core rope memory, it will probably be in the context of vintage computing equipment such as Apollo-era NASA hardware. A string of magnetic cores and sense wires form a simple ROM arrangement, which though long-ago-superceded by semiconductor memory remains possible to recreate by the experimenter. It’s …read more (https://hackaday.com/2019/09/10/core-rope-memory-makes-one-of-the-oddest-led-flashers-weve-ever-seen/)
https://hackaday.com/2019/09/10/core-rope-memory-makes-one-of-the-oddest-led-flashers-weve-ever-seen/
If you’ve heard of core rope memory, it will probably be in the context of vintage computing equipment such as Apollo-era NASA hardware. A string of magnetic cores and sense wires form a simple ROM arrangement, which though long-ago-superceded by semiconductor memory remains possible to recreate by the experimenter. It’s …read more (https://hackaday.com/2019/09/10/core-rope-memory-makes-one-of-the-oddest-led-flashers-weve-ever-seen/)
Detecting Cars with an ESP8266 Magnetometer
https://hackaday.com/2019/09/10/detecting-cars-with-an-esp8266-magnetometer/
Having a motorized gate on your driveway is great, but only if there’s an easy way to trigger it. [Andrew] says the gate at his parent’s place could only be controlled by manually pushing a button on the panel or with a dinky remote that didn’t have nearly the range …read more (https://hackaday.com/2019/09/10/detecting-cars-with-an-esp8266-magnetometer/)
https://hackaday.com/2019/09/10/detecting-cars-with-an-esp8266-magnetometer/
Having a motorized gate on your driveway is great, but only if there’s an easy way to trigger it. [Andrew] says the gate at his parent’s place could only be controlled by manually pushing a button on the panel or with a dinky remote that didn’t have nearly the range …read more (https://hackaday.com/2019/09/10/detecting-cars-with-an-esp8266-magnetometer/)
Norovirus Smartphone: Using Megapixels and Microfluidics to Fight the Other Kind of Virus Infection
https://hackaday.com/2019/09/10/norovirus-smartphone-using-megapixels-and-microfluidics-to-fight-the-other-kind-of-virus-infection/
Chances are pretty good that at some time in your life, you’ve crossed paths with a norovirus. And chances are that you remember the encounter vividly, or at least its aftermath. I recall a run-in with the bug one Christmas, when my parents brought over more than just toys for …read more (https://hackaday.com/2019/09/10/norovirus-smartphone-using-megapixels-and-microfluidics-to-fight-the-other-kind-of-virus-infection/)
https://hackaday.com/2019/09/10/norovirus-smartphone-using-megapixels-and-microfluidics-to-fight-the-other-kind-of-virus-infection/
Chances are pretty good that at some time in your life, you’ve crossed paths with a norovirus. And chances are that you remember the encounter vividly, or at least its aftermath. I recall a run-in with the bug one Christmas, when my parents brought over more than just toys for …read more (https://hackaday.com/2019/09/10/norovirus-smartphone-using-megapixels-and-microfluidics-to-fight-the-other-kind-of-virus-infection/)
Because Conventional Laser Harps Aren’t Dangerous Enough
https://hackaday.com/2019/09/10/because-conventional-laser-harps-arent-dangerous-enough/
In the late 1980s, the French musician [Jean-Michel Jarre] famously toured with a laser harp. The word among teenage fans was that he had to wear special gloves to stop his hands getting burned, because 1980s teens were both impressionable and didn’t know much about lasers. In fact we’re told …read more (https://hackaday.com/2019/09/10/because-conventional-laser-harps-arent-dangerous-enough/)
https://hackaday.com/2019/09/10/because-conventional-laser-harps-arent-dangerous-enough/
In the late 1980s, the French musician [Jean-Michel Jarre] famously toured with a laser harp. The word among teenage fans was that he had to wear special gloves to stop his hands getting burned, because 1980s teens were both impressionable and didn’t know much about lasers. In fact we’re told …read more (https://hackaday.com/2019/09/10/because-conventional-laser-harps-arent-dangerous-enough/)
Why Ada Is The Language You Want To Be Programming Your Systems With
https://hackaday.com/2019/09/10/why-ada-is-the-language-you-want-to-be-programming-your-systems-with/
The Ada programming language was born in the mid-1970s, when the US Department of Defense (DoD) and the UK’s Ministry Of Defence sought to replace the hundreds of specialized programming languages used for the embedded computer systems that increasingly made up essential parts of military projects. Instead, Ada was designed …read more (https://hackaday.com/2019/09/10/why-ada-is-the-language-you-want-to-be-programming-your-systems-with/)
https://hackaday.com/2019/09/10/why-ada-is-the-language-you-want-to-be-programming-your-systems-with/
The Ada programming language was born in the mid-1970s, when the US Department of Defense (DoD) and the UK’s Ministry Of Defence sought to replace the hundreds of specialized programming languages used for the embedded computer systems that increasingly made up essential parts of military projects. Instead, Ada was designed …read more (https://hackaday.com/2019/09/10/why-ada-is-the-language-you-want-to-be-programming-your-systems-with/)
Meet the 20 Finalists in the 2019 Hackaday Prize
https://hackaday.com/2019/09/10/meet-the-20-finalists-in-the-2019-hackaday-prize/
The Hackaday Prize is our global engineering initiative, now in its sixth year. For 2019, the focus is on product development: with great engineering and a working prototype, can you also go the distance to embrace the user’s needs and ensure the project can be produced in quantity? Throughout the …read more (https://hackaday.com/2019/09/10/meet-the-20-finalists-in-the-2019-hackaday-prize/)
https://hackaday.com/2019/09/10/meet-the-20-finalists-in-the-2019-hackaday-prize/
The Hackaday Prize is our global engineering initiative, now in its sixth year. For 2019, the focus is on product development: with great engineering and a working prototype, can you also go the distance to embrace the user’s needs and ensure the project can be produced in quantity? Throughout the …read more (https://hackaday.com/2019/09/10/meet-the-20-finalists-in-the-2019-hackaday-prize/)
Digital Oscilloscope Does Its Best Analog Impression
https://hackaday.com/2019/09/10/digital-oscilloscope-does-its-best-analog-impression/
Do you ever find yourself yearning for the days before digital storage oscilloscopes (DSOs)? Where even the basic scopes commanded four figures, and came in a bench-dominating form factor? No, of course you don’t. The DSO is a wonder of modern technology: for a couple hundred bucks you can have …read more (https://hackaday.com/2019/09/10/digital-oscilloscope-does-its-best-analog-impression/)
https://hackaday.com/2019/09/10/digital-oscilloscope-does-its-best-analog-impression/
Do you ever find yourself yearning for the days before digital storage oscilloscopes (DSOs)? Where even the basic scopes commanded four figures, and came in a bench-dominating form factor? No, of course you don’t. The DSO is a wonder of modern technology: for a couple hundred bucks you can have …read more (https://hackaday.com/2019/09/10/digital-oscilloscope-does-its-best-analog-impression/)
DIY Watertight Junction Box For Serious Outdoor Sealing
https://hackaday.com/2019/09/10/diy-watertight-junction-box-for-serious-outdoor-sealing/
Thingiverse user [The-Mechanic] shared a design for 3D printed enclosures that are made to house wire and cable junctions, which can then be rendered weatherproof by injecting them with a suitable caulking compound and allowing it to cure. It’s a cross between an enclosure and potted electronics. It’s also a …read more (https://hackaday.com/2019/09/10/diy-watertight-junction-box-for-serious-outdoor-sealing/)
https://hackaday.com/2019/09/10/diy-watertight-junction-box-for-serious-outdoor-sealing/
Thingiverse user [The-Mechanic] shared a design for 3D printed enclosures that are made to house wire and cable junctions, which can then be rendered weatherproof by injecting them with a suitable caulking compound and allowing it to cure. It’s a cross between an enclosure and potted electronics. It’s also a …read more (https://hackaday.com/2019/09/10/diy-watertight-junction-box-for-serious-outdoor-sealing/)
Learn Morse Code, Clockwork Orange Style
https://hackaday.com/2019/09/10/learn-morse-code-clockwork-orange-style/
You might have to provide your own wrist straps and eye clamps, but if you want to learn Morse code, [Seth] has a web site for you. You can get code practice using the Farnsworth method and each letter is flashed before you as it is sent, which we assume …read more (https://hackaday.com/2019/09/10/learn-morse-code-clockwork-orange-style/)
https://hackaday.com/2019/09/10/learn-morse-code-clockwork-orange-style/
You might have to provide your own wrist straps and eye clamps, but if you want to learn Morse code, [Seth] has a web site for you. You can get code practice using the Farnsworth method and each letter is flashed before you as it is sent, which we assume …read more (https://hackaday.com/2019/09/10/learn-morse-code-clockwork-orange-style/)
Warwalking For Radiation
https://hackaday.com/2019/09/10/warwalking-for-radiation/
Can’t find a recently updated survey of radioactivity in your neighborhood? Try [Hunter Long]’s DIY scintillation counter warwalking rig. (Video also embedded below.) What looks like a paint can with a BNC cable leading to an unassuming grey box is actually a complete kit for radiation surveying.
Inside the metal …read more (https://hackaday.com/2019/09/10/warwalking-for-radiation/)
https://hackaday.com/2019/09/10/warwalking-for-radiation/
Can’t find a recently updated survey of radioactivity in your neighborhood? Try [Hunter Long]’s DIY scintillation counter warwalking rig. (Video also embedded below.) What looks like a paint can with a BNC cable leading to an unassuming grey box is actually a complete kit for radiation surveying.
Inside the metal …read more (https://hackaday.com/2019/09/10/warwalking-for-radiation/)
Does Your Home Assistant Know When You are Sleeping?
https://hackaday.com/2019/09/11/does-your-home-assistant-know-when-you-are-sleeping/
It always gives us a sense of wonder when we realize that what would be a simple task for a human child is a big deal for a computer. For example, if you asked someone if you or someone else was in bed, that’s a pretty simple thing to check. …read more (https://hackaday.com/2019/09/11/does-your-home-assistant-know-when-you-are-sleeping/)
https://hackaday.com/2019/09/11/does-your-home-assistant-know-when-you-are-sleeping/
It always gives us a sense of wonder when we realize that what would be a simple task for a human child is a big deal for a computer. For example, if you asked someone if you or someone else was in bed, that’s a pretty simple thing to check. …read more (https://hackaday.com/2019/09/11/does-your-home-assistant-know-when-you-are-sleeping/)
Pan and Tilt to a New 3D Printed Business Model
https://hackaday.com/2019/09/11/pan-and-tilt-to-a-new-3d-printed-business-model/
When shooting video, an easy way to get buttery smooth panning and tracking is to use a mechanical device like a rail to literally slide the camera side to side. These range from what is essentially a skateboard to incredible programmable multi-axis industrial robots, a wide variety of which have …read more (https://hackaday.com/2019/09/11/pan-and-tilt-to-a-new-3d-printed-business-model/)
https://hackaday.com/2019/09/11/pan-and-tilt-to-a-new-3d-printed-business-model/
When shooting video, an easy way to get buttery smooth panning and tracking is to use a mechanical device like a rail to literally slide the camera side to side. These range from what is essentially a skateboard to incredible programmable multi-axis industrial robots, a wide variety of which have …read more (https://hackaday.com/2019/09/11/pan-and-tilt-to-a-new-3d-printed-business-model/)
Lambdas for C — Sort Of
https://hackaday.com/2019/09/11/lambdas-for-c-sort-of/
A lot of programming languages these days feature lambda functions, or what I would be just as happy to call anonymous functions. Some people make a big deal out of these but the core idea is very simple. Sometimes you need a little snippet of code that you only need …read more (https://hackaday.com/2019/09/11/lambdas-for-c-sort-of/)
https://hackaday.com/2019/09/11/lambdas-for-c-sort-of/
A lot of programming languages these days feature lambda functions, or what I would be just as happy to call anonymous functions. Some people make a big deal out of these but the core idea is very simple. Sometimes you need a little snippet of code that you only need …read more (https://hackaday.com/2019/09/11/lambdas-for-c-sort-of/)
Using Machinery to Make Factory-Fresh Industrial Music
https://hackaday.com/2019/09/11/using-machinery-to-make-factory-fresh-industrial-music/
Many machines make music as a side effect, as anyone who owns a 3D printer can confirm. [工場音楽レーベルINDUSTRIAL JP] is working on a project to meld music and machinery in new ways. They are building a record label and a playlist based on the sights and sounds of small factories …read more (https://hackaday.com/2019/09/11/using-machinery-to-make-factory-fresh-industrial-music/)
https://hackaday.com/2019/09/11/using-machinery-to-make-factory-fresh-industrial-music/
Many machines make music as a side effect, as anyone who owns a 3D printer can confirm. [工場音楽レーベルINDUSTRIAL JP] is working on a project to meld music and machinery in new ways. They are building a record label and a playlist based on the sights and sounds of small factories …read more (https://hackaday.com/2019/09/11/using-machinery-to-make-factory-fresh-industrial-music/)
Books You Should Read: Exact Constraint: Machine Design Using Kinematic Principles
https://hackaday.com/2019/09/11/books-you-should-read-exact-constraint-machine-design-using-kinematic-principles/
Surely, if you’re reading this website you’ve teased the thought of building your own 3D printer. I certainly did. But from my years of repeated rebuilds of my homebrew laser cutter, I learned one thing: machine design is hard, and parts cost money. Rather than jump the gun and start …read more (https://hackaday.com/2019/09/11/books-you-should-read-exact-constraint-machine-design-using-kinematic-principles/)
https://hackaday.com/2019/09/11/books-you-should-read-exact-constraint-machine-design-using-kinematic-principles/
Surely, if you’re reading this website you’ve teased the thought of building your own 3D printer. I certainly did. But from my years of repeated rebuilds of my homebrew laser cutter, I learned one thing: machine design is hard, and parts cost money. Rather than jump the gun and start …read more (https://hackaday.com/2019/09/11/books-you-should-read-exact-constraint-machine-design-using-kinematic-principles/)
Smart Buoy Rides the Citizen Science Wave
https://hackaday.com/2019/09/11/smart-buoy-rides-the-citizen-science-wave/
Those beautiful and dangerous ocean waves that beckon us to the coast are more than just a pretty sight. They can tell us a lot about weather patterns and what the sea itself is doing. As vital as this information is, the existing methods of doing wave research are pretty …read more (https://hackaday.com/2019/09/11/smart-buoy-rides-the-citizen-science-wave/)
https://hackaday.com/2019/09/11/smart-buoy-rides-the-citizen-science-wave/
Those beautiful and dangerous ocean waves that beckon us to the coast are more than just a pretty sight. They can tell us a lot about weather patterns and what the sea itself is doing. As vital as this information is, the existing methods of doing wave research are pretty …read more (https://hackaday.com/2019/09/11/smart-buoy-rides-the-citizen-science-wave/)
Handheld LoRa Joystick For Long-Range Bots
https://hackaday.com/2019/09/11/handheld-lora-joystick-for-long-range-bots/
Wanting a simple tool to aid in the development of LoRa controlled robotic projects, [Jay Doscher] put together this very slick one-handed controller based on the 900 MHz Adafruit Feather M0. With a single trigger and a miniature analog joystick it’s a fairly simple input device, but should be just …read more (https://hackaday.com/2019/09/11/handheld-lora-joystick-for-long-range-bots/)
https://hackaday.com/2019/09/11/handheld-lora-joystick-for-long-range-bots/
Wanting a simple tool to aid in the development of LoRa controlled robotic projects, [Jay Doscher] put together this very slick one-handed controller based on the 900 MHz Adafruit Feather M0. With a single trigger and a miniature analog joystick it’s a fairly simple input device, but should be just …read more (https://hackaday.com/2019/09/11/handheld-lora-joystick-for-long-range-bots/)
Rideable Tank Tread: It’s a Monotrack Motorcycle That Begs You To Stop Very Slowly
https://hackaday.com/2019/09/11/rideable-tank-tread-its-a-monotrack-motorcycle-that-begs-you-to-stop-very-slowly/
There will always be those of us who yearn for an iron steed and the wind through your hair. (Or over your helmet, if you value the contents of your skull.) If having fun and turning heads is more important to you than speed or practicality, [Make it Extreme] has …read more (https://hackaday.com/2019/09/11/rideable-tank-tread-its-a-monotrack-motorcycle-that-begs-you-to-stop-very-slowly/)
https://hackaday.com/2019/09/11/rideable-tank-tread-its-a-monotrack-motorcycle-that-begs-you-to-stop-very-slowly/
There will always be those of us who yearn for an iron steed and the wind through your hair. (Or over your helmet, if you value the contents of your skull.) If having fun and turning heads is more important to you than speed or practicality, [Make it Extreme] has …read more (https://hackaday.com/2019/09/11/rideable-tank-tread-its-a-monotrack-motorcycle-that-begs-you-to-stop-very-slowly/)
Custom Lego Server Case Looks As Though It Came Straight From A Data Center
https://hackaday.com/2019/09/11/custom-lego-server-case-looks-as-though-it-came-straight-from-a-data-center/
The picture above appears to show two unremarkable 2U rack servers, of the kind that are probably hosting the page you’re reading right now. Nothing special there – until you look carefully and realize that the rack server case on the left is made entirely from Lego. And what’s more, …read more (https://hackaday.com/2019/09/11/custom-lego-server-case-looks-as-though-it-came-straight-from-a-data-center/)
https://hackaday.com/2019/09/11/custom-lego-server-case-looks-as-though-it-came-straight-from-a-data-center/
The picture above appears to show two unremarkable 2U rack servers, of the kind that are probably hosting the page you’re reading right now. Nothing special there – until you look carefully and realize that the rack server case on the left is made entirely from Lego. And what’s more, …read more (https://hackaday.com/2019/09/11/custom-lego-server-case-looks-as-though-it-came-straight-from-a-data-center/)