Now Even Your Business Card Can Run Linux
https://hackaday.com/2019/12/24/now-even-your-business-card-can-run-linux/
It takes a lot of work to get a functional PCB business card that’s thin, cheap, and robust enough to be practical. If you can even blink a few LEDs on the thing and still hand them out with a straight face, you’ve done pretty well for yourself. So you …read more (https://hackaday.com/2019/12/24/now-even-your-business-card-can-run-linux/)
https://hackaday.com/2019/12/24/now-even-your-business-card-can-run-linux/
It takes a lot of work to get a functional PCB business card that’s thin, cheap, and robust enough to be practical. If you can even blink a few LEDs on the thing and still hand them out with a straight face, you’ve done pretty well for yourself. So you …read more (https://hackaday.com/2019/12/24/now-even-your-business-card-can-run-linux/)
Minimalist Mate Maker Keeps You Caffeinated
https://hackaday.com/2019/12/24/minimalist-mate-maker-keeps-you-caffeinated/
Americans love their coffee. The Brits adore their tea. In South America, the number one way to get through the day is with yerba mate, a tea made from the yerba plant. It is typically shared in a social setting, with one person preparing the beverage for everyone to enjoy. …read more (https://hackaday.com/2019/12/24/minimalist-mate-maker-keeps-you-caffeinated/)
https://hackaday.com/2019/12/24/minimalist-mate-maker-keeps-you-caffeinated/
Americans love their coffee. The Brits adore their tea. In South America, the number one way to get through the day is with yerba mate, a tea made from the yerba plant. It is typically shared in a social setting, with one person preparing the beverage for everyone to enjoy. …read more (https://hackaday.com/2019/12/24/minimalist-mate-maker-keeps-you-caffeinated/)
LuaRadio Gives Insight into SDR
https://hackaday.com/2019/12/24/luaradio-gives-insight-into-sdr/
In theory, you shouldn’t need any help to develop a software-defined radio (SDR) application. But in real life you really don’t want to roll your own code every time to read the IQ samples, perform various transformations on them, and then drive audio output. At worst, you’ll use some libraries …read more (https://hackaday.com/2019/12/24/luaradio-gives-insight-into-sdr/)
https://hackaday.com/2019/12/24/luaradio-gives-insight-into-sdr/
In theory, you shouldn’t need any help to develop a software-defined radio (SDR) application. But in real life you really don’t want to roll your own code every time to read the IQ samples, perform various transformations on them, and then drive audio output. At worst, you’ll use some libraries …read more (https://hackaday.com/2019/12/24/luaradio-gives-insight-into-sdr/)
Color Coded Clock Runs On Roman Numerals
https://hackaday.com/2019/12/24/color-coded-clock-runs-on-roman-numerals/
Roman numerals are, by modern standards, a bit unusual. By virtue of using designations for both 5 and 10, and not scaling well to higher numbers, they’ve fallen out of favor outside of some specific uses. One of those is in time keeping, in which many clocks use the classical …read more (https://hackaday.com/2019/12/24/color-coded-clock-runs-on-roman-numerals/)
https://hackaday.com/2019/12/24/color-coded-clock-runs-on-roman-numerals/
Roman numerals are, by modern standards, a bit unusual. By virtue of using designations for both 5 and 10, and not scaling well to higher numbers, they’ve fallen out of favor outside of some specific uses. One of those is in time keeping, in which many clocks use the classical …read more (https://hackaday.com/2019/12/24/color-coded-clock-runs-on-roman-numerals/)
Laser Welding With A Tattoo Removal Gun
https://hackaday.com/2019/12/25/laser-welding-with-a-tattoo-removal-gun/
Dating as far back as the early 1960’s, researchers were zapping tattoo inks with laser light was an effective way to remove the markings from human skin. At the time it was prohibitively expensive. But the desire to have an undo-button for badge choices is strong, and thus the tattoo …read more (https://hackaday.com/2019/12/25/laser-welding-with-a-tattoo-removal-gun/)
https://hackaday.com/2019/12/25/laser-welding-with-a-tattoo-removal-gun/
Dating as far back as the early 1960’s, researchers were zapping tattoo inks with laser light was an effective way to remove the markings from human skin. At the time it was prohibitively expensive. But the desire to have an undo-button for badge choices is strong, and thus the tattoo …read more (https://hackaday.com/2019/12/25/laser-welding-with-a-tattoo-removal-gun/)
Arduino Polygraph Shows How It’s Done
https://hackaday.com/2019/12/25/arduino-polygraph-shows-how-its-done/
Sometimes, a project comes along that makes a good reference design for anyone doing similar work. In this particular case, it’s a DIY USB polygraph-like machine by [Juangg] using an Arduino and sensors on the hardware side, and a Python front end for data visualization. It’s even complete with 3D …read more (https://hackaday.com/2019/12/25/arduino-polygraph-shows-how-its-done/)
https://hackaday.com/2019/12/25/arduino-polygraph-shows-how-its-done/
Sometimes, a project comes along that makes a good reference design for anyone doing similar work. In this particular case, it’s a DIY USB polygraph-like machine by [Juangg] using an Arduino and sensors on the hardware side, and a Python front end for data visualization. It’s even complete with 3D …read more (https://hackaday.com/2019/12/25/arduino-polygraph-shows-how-its-done/)
Team Scores Big Points with Pinball Final Project
https://hackaday.com/2019/12/25/team-scores-big-points-with-pinball-final-project/
For their final project in [Bruce Land]’s class on designing with PIC32 microcontrollers, [Sujith], [Julia] and [Andrew] wanted to do something fun. And what could be more fun than bending to the electromechanical siren song of the pinball machine?
This machine looks great, and as you can see in the …read more (https://hackaday.com/2019/12/25/team-scores-big-points-with-pinball-final-project/)
https://hackaday.com/2019/12/25/team-scores-big-points-with-pinball-final-project/
For their final project in [Bruce Land]’s class on designing with PIC32 microcontrollers, [Sujith], [Julia] and [Andrew] wanted to do something fun. And what could be more fun than bending to the electromechanical siren song of the pinball machine?
This machine looks great, and as you can see in the …read more (https://hackaday.com/2019/12/25/team-scores-big-points-with-pinball-final-project/)
Need Hackable Melodies? Here’s The TETRIS Theme and More
https://hackaday.com/2019/12/25/need-hackable-melodies-heres-the-tetris-theme-and-more/
[Robson Couto] started to get interested in musical projects and as a side effect created downloadable code with simple notation for a good variety of themes, songs, and melodies. They are all for the Arduino and use only the built-in tone() function, but don’t let that distract you. If you …read more (https://hackaday.com/2019/12/25/need-hackable-melodies-heres-the-tetris-theme-and-more/)
https://hackaday.com/2019/12/25/need-hackable-melodies-heres-the-tetris-theme-and-more/
[Robson Couto] started to get interested in musical projects and as a side effect created downloadable code with simple notation for a good variety of themes, songs, and melodies. They are all for the Arduino and use only the built-in tone() function, but don’t let that distract you. If you …read more (https://hackaday.com/2019/12/25/need-hackable-melodies-heres-the-tetris-theme-and-more/)
Honoring Chuck Peddle; Father of the 6502 and the Chips That Went with It
https://hackaday.com/2019/12/25/honoring-chuck-peddle-father-of-the-6502-and-the-chips-that-went-with-it/
Chuck Peddle, the patriarch of the 6502 microprocessor, died recently. Most people don’t know the effect that he and his team of engineers had on their lives. We often take the world of microprocessor for granted as a commonplace component in computation device, yet there was a time when there …read more (https://hackaday.com/2019/12/25/honoring-chuck-peddle-father-of-the-6502-and-the-chips-that-went-with-it/)
https://hackaday.com/2019/12/25/honoring-chuck-peddle-father-of-the-6502-and-the-chips-that-went-with-it/
Chuck Peddle, the patriarch of the 6502 microprocessor, died recently. Most people don’t know the effect that he and his team of engineers had on their lives. We often take the world of microprocessor for granted as a commonplace component in computation device, yet there was a time when there …read more (https://hackaday.com/2019/12/25/honoring-chuck-peddle-father-of-the-6502-and-the-chips-that-went-with-it/)
Finishing FDM Prints with SLS Resin
https://hackaday.com/2019/12/25/finishing-fdm-prints-with-sls-resin/
[Thomas Sanladerer] has a filament-based 3D printer and a resin one. Can the two types of raw material combine to make something better? [Thomas] did some experiments using some magnets to suspend the parts and a hot air soldering gun to heat things up.
The trick turns out to be …read more (https://hackaday.com/2019/12/25/finishing-fdm-prints-with-sls-resin/)
https://hackaday.com/2019/12/25/finishing-fdm-prints-with-sls-resin/
[Thomas Sanladerer] has a filament-based 3D printer and a resin one. Can the two types of raw material combine to make something better? [Thomas] did some experiments using some magnets to suspend the parts and a hot air soldering gun to heat things up.
The trick turns out to be …read more (https://hackaday.com/2019/12/25/finishing-fdm-prints-with-sls-resin/)
A Car That Runs On Homemade Chemical Reactions
https://hackaday.com/2019/12/25/a-car-that-runs-on-homemade-chemical-reactions/
The race for chemical engineering is quite literally on. Every year, the American Institute of Chemical Engineers (AlChE) brings together hundreds of university students to face-off to design the fastest car using techniques they’ve learned from chemical engineering courses.
The Chem-E-Car competition races cars which are only powered by chemical …read more (https://hackaday.com/2019/12/25/a-car-that-runs-on-homemade-chemical-reactions/)
https://hackaday.com/2019/12/25/a-car-that-runs-on-homemade-chemical-reactions/
The race for chemical engineering is quite literally on. Every year, the American Institute of Chemical Engineers (AlChE) brings together hundreds of university students to face-off to design the fastest car using techniques they’ve learned from chemical engineering courses.
The Chem-E-Car competition races cars which are only powered by chemical …read more (https://hackaday.com/2019/12/25/a-car-that-runs-on-homemade-chemical-reactions/)
DIY Scalar Network Analyzer
https://hackaday.com/2019/12/25/diy-scalar-network-analyzer/
[Steven Merrifield] built his own Scalar Network Analyzer and it’s a beauty! [Steve]’s SNA has a digital pinout matching a Raspberry Pi, but any GPIO could be used to operate the device and retrieve the data from the ADC. The design is based around a few tried and true chips …read more (https://hackaday.com/2019/12/25/diy-scalar-network-analyzer/)
https://hackaday.com/2019/12/25/diy-scalar-network-analyzer/
[Steven Merrifield] built his own Scalar Network Analyzer and it’s a beauty! [Steve]’s SNA has a digital pinout matching a Raspberry Pi, but any GPIO could be used to operate the device and retrieve the data from the ADC. The design is based around a few tried and true chips …read more (https://hackaday.com/2019/12/25/diy-scalar-network-analyzer/)
Circuit Sculpture Teaches Binary, Plays PONG
https://hackaday.com/2019/12/25/circuit-sculpture-teaches-binary-plays-pong/
We sure wish we’d had a teacher like [Volos Projects]. He built this beautiful circuit sculpture to teach his students how to count in binary and convert it to decimal and hexadecimal. If you don’t already know binary, you get to learn it on DIP switches and a dead-bugged ATMega328 …read more (https://hackaday.com/2019/12/25/circuit-sculpture-teaches-binary-plays-pong/)
https://hackaday.com/2019/12/25/circuit-sculpture-teaches-binary-plays-pong/
We sure wish we’d had a teacher like [Volos Projects]. He built this beautiful circuit sculpture to teach his students how to count in binary and convert it to decimal and hexadecimal. If you don’t already know binary, you get to learn it on DIP switches and a dead-bugged ATMega328 …read more (https://hackaday.com/2019/12/25/circuit-sculpture-teaches-binary-plays-pong/)
Adding USB-C To The TS100, But Not How You Think
https://hackaday.com/2019/12/26/adding-usb-c-to-the-ts100-but-not-how-you-think/
USB-C has its special Power Delivery standard, and is capable of delivering plenty of juice to attached hardware. This has led many to modify their TS-100 soldering irons to accept the connector. [Jan Henrik] is the latest, though he’s taken rather a different tack than you might expect.
[Jan] didn’t …read more (https://hackaday.com/2019/12/26/adding-usb-c-to-the-ts100-but-not-how-you-think/)
https://hackaday.com/2019/12/26/adding-usb-c-to-the-ts100-but-not-how-you-think/
USB-C has its special Power Delivery standard, and is capable of delivering plenty of juice to attached hardware. This has led many to modify their TS-100 soldering irons to accept the connector. [Jan Henrik] is the latest, though he’s taken rather a different tack than you might expect.
[Jan] didn’t …read more (https://hackaday.com/2019/12/26/adding-usb-c-to-the-ts100-but-not-how-you-think/)
Custom Control Panels with Photogrammetry
https://hackaday.com/2019/12/26/custom-control-panels-with-photogrammetry/
One of the best applications for desktop 3D printing is the creation of one-off bespoke components. Most of the time a halfway decent pair of calipers and some patience is all it takes to model up whatever part you’re after, but occasionally things get complex enough that you might need …read more (https://hackaday.com/2019/12/26/custom-control-panels-with-photogrammetry/)
https://hackaday.com/2019/12/26/custom-control-panels-with-photogrammetry/
One of the best applications for desktop 3D printing is the creation of one-off bespoke components. Most of the time a halfway decent pair of calipers and some patience is all it takes to model up whatever part you’re after, but occasionally things get complex enough that you might need …read more (https://hackaday.com/2019/12/26/custom-control-panels-with-photogrammetry/)
New Part Day: Sonoff USB Smart Adaptor Taps a New WiFi Chip
https://hackaday.com/2019/12/26/new-part-day-sonoff-usb-smart-adaptor-taps-a-new-wifi-chip/
For decades, we dreamt of a future where all of our electronics used a standardized power connector. Most of us probably didn’t expect that USB would ultimately fill that role, but we’ll take what we can get if it means a future without getting a new wall wart for every …read more (https://hackaday.com/2019/12/26/new-part-day-sonoff-usb-smart-adaptor-taps-a-new-wifi-chip/)
https://hackaday.com/2019/12/26/new-part-day-sonoff-usb-smart-adaptor-taps-a-new-wifi-chip/
For decades, we dreamt of a future where all of our electronics used a standardized power connector. Most of us probably didn’t expect that USB would ultimately fill that role, but we’ll take what we can get if it means a future without getting a new wall wart for every …read more (https://hackaday.com/2019/12/26/new-part-day-sonoff-usb-smart-adaptor-taps-a-new-wifi-chip/)
Open-Source Analytical Balance Pits Gravity Against Electromagnetism
https://hackaday.com/2019/12/26/open-source-analytical-balance-pits-gravity-against-electromagnetism/
As the open-source movement has brought its influence to more and more fields, we’ve seen an astonishing variety of things once only available at significant expense become accessible to anyone with access to the tools required to create them. One such arena is that of scientific instrumentation, and though we …read more (https://hackaday.com/2019/12/26/open-source-analytical-balance-pits-gravity-against-electromagnetism/)
https://hackaday.com/2019/12/26/open-source-analytical-balance-pits-gravity-against-electromagnetism/
As the open-source movement has brought its influence to more and more fields, we’ve seen an astonishing variety of things once only available at significant expense become accessible to anyone with access to the tools required to create them. One such arena is that of scientific instrumentation, and though we …read more (https://hackaday.com/2019/12/26/open-source-analytical-balance-pits-gravity-against-electromagnetism/)
Ask Hackaday: Drone Swarms Replace Fireworks; Where are the Hackers?
https://hackaday.com/2019/12/26/ask-hackaday-drone-swarms-replace-fireworks-where-are-the-hackers/
Your mom always warned you that those fireworks could put an eye out. However, the hottest new thing in fireworks displays is not pyrotechnic at all. Instead, a swarm of coordinated drones take to the sky with different lighting effects. This makes some pretty amazing shows possible, granting full control …read more (https://hackaday.com/2019/12/26/ask-hackaday-drone-swarms-replace-fireworks-where-are-the-hackers/)
https://hackaday.com/2019/12/26/ask-hackaday-drone-swarms-replace-fireworks-where-are-the-hackers/
Your mom always warned you that those fireworks could put an eye out. However, the hottest new thing in fireworks displays is not pyrotechnic at all. Instead, a swarm of coordinated drones take to the sky with different lighting effects. This makes some pretty amazing shows possible, granting full control …read more (https://hackaday.com/2019/12/26/ask-hackaday-drone-swarms-replace-fireworks-where-are-the-hackers/)
Handheld MQTT Remote for Home Automation
https://hackaday.com/2019/12/26/handheld-mqtt-remote-for-home-automation/
If you’re working on a home automation project, you’re probably knee-deep into MQTT by now. If not, you should be. The lightweight messaging protocol is an ideal choice for getting your “Things” on the Internet, and controlling them all can be done easily through a simple web interface or an …read more (https://hackaday.com/2019/12/26/handheld-mqtt-remote-for-home-automation/)
https://hackaday.com/2019/12/26/handheld-mqtt-remote-for-home-automation/
If you’re working on a home automation project, you’re probably knee-deep into MQTT by now. If not, you should be. The lightweight messaging protocol is an ideal choice for getting your “Things” on the Internet, and controlling them all can be done easily through a simple web interface or an …read more (https://hackaday.com/2019/12/26/handheld-mqtt-remote-for-home-automation/)
Compact 3D Printed Hovercraft Is Loungeroom Floor Fun
https://hackaday.com/2019/12/26/compact-3d-printed-hovercraft-is-loungeroom-floor-fun/
Hovercraft come in all shapes and sizes. and while they’ve largely disappeared as a major commercial transit option, they remain popular in the hearts and minds of makers everywhere. [RCLifeOn’s] latest project concerns a compact, indoor-sized hovercraft piloted via FPV, and it looks to be brilliant fun.
The build consists …read more (https://hackaday.com/2019/12/26/compact-3d-printed-hovercraft-is-loungeroom-floor-fun/)
https://hackaday.com/2019/12/26/compact-3d-printed-hovercraft-is-loungeroom-floor-fun/
Hovercraft come in all shapes and sizes. and while they’ve largely disappeared as a major commercial transit option, they remain popular in the hearts and minds of makers everywhere. [RCLifeOn’s] latest project concerns a compact, indoor-sized hovercraft piloted via FPV, and it looks to be brilliant fun.
The build consists …read more (https://hackaday.com/2019/12/26/compact-3d-printed-hovercraft-is-loungeroom-floor-fun/)
Folding An Off-The-Shelf 3D Printer
https://hackaday.com/2019/12/26/folding-an-off-the-shelf-3d-printer/
Most 3D printers don’t take up a lot of space, but they can be pretty bulky and awkward to travel with. [Jón Schone] needed a compact folding 3D printer for a secret project on his YouTube channel ProperPrinting, so he decided to modify a Creality Ender 3 Pro to achieve …read more (https://hackaday.com/2019/12/26/folding-an-off-the-shelf-3d-printer/)
https://hackaday.com/2019/12/26/folding-an-off-the-shelf-3d-printer/
Most 3D printers don’t take up a lot of space, but they can be pretty bulky and awkward to travel with. [Jón Schone] needed a compact folding 3D printer for a secret project on his YouTube channel ProperPrinting, so he decided to modify a Creality Ender 3 Pro to achieve …read more (https://hackaday.com/2019/12/26/folding-an-off-the-shelf-3d-printer/)