A Radio for the Apocalypse
https://hackaday.com/2019/11/15/a-radio-for-the-apocalypse/
There’s been a spate of apocalypse related articles over the last few weeks, but when I saw an AM radio made from a hand-wound coil and an oxidized British penny, I couldn’t help but be impressed. We’ve covered foxhole radios, stereotypical radios that are cobbled together from found parts during …read more (https://hackaday.com/2019/11/15/a-radio-for-the-apocalypse/)
https://hackaday.com/2019/11/15/a-radio-for-the-apocalypse/
There’s been a spate of apocalypse related articles over the last few weeks, but when I saw an AM radio made from a hand-wound coil and an oxidized British penny, I couldn’t help but be impressed. We’ve covered foxhole radios, stereotypical radios that are cobbled together from found parts during …read more (https://hackaday.com/2019/11/15/a-radio-for-the-apocalypse/)
Credit Card Skimmers Evolve – Shimmers Are Here
https://hackaday.com/2019/11/15/credit-card-skimmers-evolve-shimmers-are-here/
Credit cards are loaded with security features, but the game of cat and mouse goes on. Nefarious syndicates continue to develop technology to steal data in new and innovate ways. After SparkFun did a teardown on some illicit hardware, they were visited by local law enforcement, who requested their help …read more (https://hackaday.com/2019/11/15/credit-card-skimmers-evolve-shimmers-are-here/)
https://hackaday.com/2019/11/15/credit-card-skimmers-evolve-shimmers-are-here/
Credit cards are loaded with security features, but the game of cat and mouse goes on. Nefarious syndicates continue to develop technology to steal data in new and innovate ways. After SparkFun did a teardown on some illicit hardware, they were visited by local law enforcement, who requested their help …read more (https://hackaday.com/2019/11/15/credit-card-skimmers-evolve-shimmers-are-here/)
This Week in Security: Fuzzing Fixes, Foul Fonts, TPM Timing Attacks, and More!
https://hackaday.com/2019/11/15/this-week-in-security-fuzzing-fixes-foul-fonts-tpm-timing-attacks-and-more/
An issue was discovered in libarchive through Google’s ClusterFuzz project. Libarchive is a compression and decompression library, widely used in utilities. The issue here is how the library recovers from a malformed archive. Hitting an invalid header causes the memory in use to be freed. The problem is that it’s …read more (https://hackaday.com/2019/11/15/this-week-in-security-fuzzing-fixes-foul-fonts-tpm-timing-attacks-and-more/)
https://hackaday.com/2019/11/15/this-week-in-security-fuzzing-fixes-foul-fonts-tpm-timing-attacks-and-more/
An issue was discovered in libarchive through Google’s ClusterFuzz project. Libarchive is a compression and decompression library, widely used in utilities. The issue here is how the library recovers from a malformed archive. Hitting an invalid header causes the memory in use to be freed. The problem is that it’s …read more (https://hackaday.com/2019/11/15/this-week-in-security-fuzzing-fixes-foul-fonts-tpm-timing-attacks-and-more/)
Needling Your Projects: 3D Printed PCB Probing Jig Uses Accupuncture Needles
https://hackaday.com/2019/11/15/needling-your-projects-3d-printed-pcb-probing-jig-uses-accupuncture-needles/
Trying to probe a modern electronic circuit with tiny SMD components, without letting the magic smoke escape in the process, can be quite a challenge. Especially since we hackers have not yet developed the number of appendages required to hold 3 different probes in place while operating both an oscilloscope …read more (https://hackaday.com/2019/11/15/needling-your-projects-3d-printed-pcb-probing-jig-uses-accupuncture-needles/)
https://hackaday.com/2019/11/15/needling-your-projects-3d-printed-pcb-probing-jig-uses-accupuncture-needles/
Trying to probe a modern electronic circuit with tiny SMD components, without letting the magic smoke escape in the process, can be quite a challenge. Especially since we hackers have not yet developed the number of appendages required to hold 3 different probes in place while operating both an oscilloscope …read more (https://hackaday.com/2019/11/15/needling-your-projects-3d-printed-pcb-probing-jig-uses-accupuncture-needles/)
DSP Spreadsheet: IQ Diagrams
https://hackaday.com/2019/11/15/dsp-spreadsheet-iq-diagrams/
In previous installments of DSP Spreadsheet, we’ve looked at generating signals, mixing them, and filtering them. If you start trying to work with DSP, though, you’ll find a topic that always rears its head: IQ signals. It turns out, these aren’t as hard as they appear at first and, as …read more (https://hackaday.com/2019/11/15/dsp-spreadsheet-iq-diagrams/)
https://hackaday.com/2019/11/15/dsp-spreadsheet-iq-diagrams/
In previous installments of DSP Spreadsheet, we’ve looked at generating signals, mixing them, and filtering them. If you start trying to work with DSP, though, you’ll find a topic that always rears its head: IQ signals. It turns out, these aren’t as hard as they appear at first and, as …read more (https://hackaday.com/2019/11/15/dsp-spreadsheet-iq-diagrams/)
Finally Your Air Drumming Has an Outlet
https://hackaday.com/2019/11/15/finally-your-air-drumming-has-an-outlet/
Two engineering students are hard at work on this air drum which they hope will help disabled people and people in nursing homes. Though, we think it just looks fun!
Each board is its own module consisting of the electronics and 3D printed cases. The modules each contain an arduino …read more (https://hackaday.com/2019/11/15/finally-your-air-drumming-has-an-outlet/)
https://hackaday.com/2019/11/15/finally-your-air-drumming-has-an-outlet/
Two engineering students are hard at work on this air drum which they hope will help disabled people and people in nursing homes. Though, we think it just looks fun!
Each board is its own module consisting of the electronics and 3D printed cases. The modules each contain an arduino …read more (https://hackaday.com/2019/11/15/finally-your-air-drumming-has-an-outlet/)
A Self-Expanding PWM Driver
https://hackaday.com/2019/11/15/a-self-expanding-pwm-driver/
For smaller microcontrollers, having enough outputs for the job is sometimes a challenge. A common solution is to do some sort of multiplexing with the available outputs or perhaps something more advanced such as Charlieplexing, but another good option is to use a specialized driver board. What’s even better is …read more (https://hackaday.com/2019/11/15/a-self-expanding-pwm-driver/)
https://hackaday.com/2019/11/15/a-self-expanding-pwm-driver/
For smaller microcontrollers, having enough outputs for the job is sometimes a challenge. A common solution is to do some sort of multiplexing with the available outputs or perhaps something more advanced such as Charlieplexing, but another good option is to use a specialized driver board. What’s even better is …read more (https://hackaday.com/2019/11/15/a-self-expanding-pwm-driver/)
Music Box Paper-Punching Machine Settles The Score
https://hackaday.com/2019/11/15/music-box-paper-punching-machine-settles-the-score/
As soon as [pashiran] laid eyes on his first hand-cranked music box, he knew he was in love. Then, he started punching the holes for his first ditty. As the repetitive stress of punching heated up his arm, his love cooled a bit. Annealed by the ups and downs of …read more (https://hackaday.com/2019/11/15/music-box-paper-punching-machine-settles-the-score/)
https://hackaday.com/2019/11/15/music-box-paper-punching-machine-settles-the-score/
As soon as [pashiran] laid eyes on his first hand-cranked music box, he knew he was in love. Then, he started punching the holes for his first ditty. As the repetitive stress of punching heated up his arm, his love cooled a bit. Annealed by the ups and downs of …read more (https://hackaday.com/2019/11/15/music-box-paper-punching-machine-settles-the-score/)
Double Pendulum Uses Custom Slip Rings
https://hackaday.com/2019/11/15/double-pendulum-uses-custom-slip-rings/
Rotating mechanisms can be a headache when it becomes necessary to deliver power through them. [Igor Brkic] faced just such a challenge when creating his double-pendulum build, and solved it with a little DIY.
The project is known as KLAATNO, inspired by the Croatian word for pendulum, klatno. It’s a …read more (https://hackaday.com/2019/11/15/double-pendulum-uses-custom-slip-rings/)
https://hackaday.com/2019/11/15/double-pendulum-uses-custom-slip-rings/
Rotating mechanisms can be a headache when it becomes necessary to deliver power through them. [Igor Brkic] faced just such a challenge when creating his double-pendulum build, and solved it with a little DIY.
The project is known as KLAATNO, inspired by the Croatian word for pendulum, klatno. It’s a …read more (https://hackaday.com/2019/11/15/double-pendulum-uses-custom-slip-rings/)
This Handheld C64 Design Study Needs To Be Made
https://hackaday.com/2019/11/15/this-handheld-c64-design-study-needs-to-be-made/
The Commodore 64 remains the best selling home computer of all time, and is unlikely to be toppled anytime soon. It continues to inspire a diehard community of makers and hackers to this day. [Cem Tezcan] is one of those people, and his design study of a handheld C64 is …read more (https://hackaday.com/2019/11/15/this-handheld-c64-design-study-needs-to-be-made/)
https://hackaday.com/2019/11/15/this-handheld-c64-design-study-needs-to-be-made/
The Commodore 64 remains the best selling home computer of all time, and is unlikely to be toppled anytime soon. It continues to inspire a diehard community of makers and hackers to this day. [Cem Tezcan] is one of those people, and his design study of a handheld C64 is …read more (https://hackaday.com/2019/11/15/this-handheld-c64-design-study-needs-to-be-made/)
This Is The Bike You Wanted Your Dad To Make You When You Were Eight Years Old!
https://hackaday.com/2019/11/16/this-is-the-bike-you-wanted-your-dad-to-make-you-when-you-were-eight-years-old/
The ever-resourceful [Turbo Conquering Mega Eagle] has an excellent excuse for starting on projects, he’s building them for his kids and making videos. We’re not so sure his little motorcycle wasn’t built because Dad also wants to have a go though, because it seems he had quite a lot of …read more (https://hackaday.com/2019/11/16/this-is-the-bike-you-wanted-your-dad-to-make-you-when-you-were-eight-years-old/)
https://hackaday.com/2019/11/16/this-is-the-bike-you-wanted-your-dad-to-make-you-when-you-were-eight-years-old/
The ever-resourceful [Turbo Conquering Mega Eagle] has an excellent excuse for starting on projects, he’s building them for his kids and making videos. We’re not so sure his little motorcycle wasn’t built because Dad also wants to have a go though, because it seems he had quite a lot of …read more (https://hackaday.com/2019/11/16/this-is-the-bike-you-wanted-your-dad-to-make-you-when-you-were-eight-years-old/)
Speeding Up IOTA Proof Of Work Using FPGAs
https://hackaday.com/2019/11/16/speeding-up-iota-proof-of-work-using-fpgas/
Blockchain has existed as a concept since the early 1990s, but keeping a distributed ledger for IoT transactions wasn’t widely implemented until IOTA developed Tangle. The blockchain company was initially founded as a hardware startup and pivoted to work on transactional settlement for IoT. The Tangle, their distributed ledger architecture …read more (https://hackaday.com/2019/11/16/speeding-up-iota-proof-of-work-using-fpgas/)
https://hackaday.com/2019/11/16/speeding-up-iota-proof-of-work-using-fpgas/
Blockchain has existed as a concept since the early 1990s, but keeping a distributed ledger for IoT transactions wasn’t widely implemented until IOTA developed Tangle. The blockchain company was initially founded as a hardware startup and pivoted to work on transactional settlement for IoT. The Tangle, their distributed ledger architecture …read more (https://hackaday.com/2019/11/16/speeding-up-iota-proof-of-work-using-fpgas/)
Sow Your Seed Efficiently With This Multi-Way Drop Seeder
https://hackaday.com/2019/11/16/sow-your-seed-efficiently-with-this-multi-way-drop-seeder/
Anyone who has ever had to propagate small plants from seed will know that efficiently sowing seed can be a difficult process. Getting a consistent number of seed in each point while achieving any sort of speed is almost impossible, and as a result it becomes a tedious process. If …read more (https://hackaday.com/2019/11/16/sow-your-seed-efficiently-with-this-multi-way-drop-seeder/)
https://hackaday.com/2019/11/16/sow-your-seed-efficiently-with-this-multi-way-drop-seeder/
Anyone who has ever had to propagate small plants from seed will know that efficiently sowing seed can be a difficult process. Getting a consistent number of seed in each point while achieving any sort of speed is almost impossible, and as a result it becomes a tedious process. If …read more (https://hackaday.com/2019/11/16/sow-your-seed-efficiently-with-this-multi-way-drop-seeder/)
The Book Of Dreams Brings Back All Your Memories
https://hackaday.com/2019/11/16/the-book-of-dreams-brings-back-all-your-memories/
The retro-facing side of British social media has been abuzz for the last few days with a very neat piece of marketing form the catalogue retailer Argos: they’ve digitised all their catalogues since 1975 and put them online. While this contains a cross-section of over four decades’ styles, fads, and …read more (https://hackaday.com/2019/11/16/the-book-of-dreams-brings-back-all-your-memories/)
https://hackaday.com/2019/11/16/the-book-of-dreams-brings-back-all-your-memories/
The retro-facing side of British social media has been abuzz for the last few days with a very neat piece of marketing form the catalogue retailer Argos: they’ve digitised all their catalogues since 1975 and put them online. While this contains a cross-section of over four decades’ styles, fads, and …read more (https://hackaday.com/2019/11/16/the-book-of-dreams-brings-back-all-your-memories/)
2019 Superconference is Streaming Live Right Now!
https://hackaday.com/2019/11/16/2019-superconference-is-streaming-live-right-now/
Perhaps Pasadena is a bit too far from home, or maybe you waited a few milliseconds longer than you should have and missed the tickets when they went on sale. Whatever the reason, the fact is that the vast majority of Hackaday readers won’t be able to join us at …read more (https://hackaday.com/2019/11/16/2019-superconference-is-streaming-live-right-now/)
https://hackaday.com/2019/11/16/2019-superconference-is-streaming-live-right-now/
Perhaps Pasadena is a bit too far from home, or maybe you waited a few milliseconds longer than you should have and missed the tickets when they went on sale. Whatever the reason, the fact is that the vast majority of Hackaday readers won’t be able to join us at …read more (https://hackaday.com/2019/11/16/2019-superconference-is-streaming-live-right-now/)
The Ultimate Hacker’s Compact 4WD!
https://hackaday.com/2019/11/16/the-ultimate-hackers-compact-4wd/
If you’ve spent any time at one of the larger European hacker camps over the last few years you’ll have seen the invasion of little electric vehicles sporting hoverboard motors as an all-in-one propulsion system. German hackers, in particular, have incorporated them into the iconic Bobby Car children’s toy, and …read more (https://hackaday.com/2019/11/16/the-ultimate-hackers-compact-4wd/)
https://hackaday.com/2019/11/16/the-ultimate-hackers-compact-4wd/
If you’ve spent any time at one of the larger European hacker camps over the last few years you’ll have seen the invasion of little electric vehicles sporting hoverboard motors as an all-in-one propulsion system. German hackers, in particular, have incorporated them into the iconic Bobby Car children’s toy, and …read more (https://hackaday.com/2019/11/16/the-ultimate-hackers-compact-4wd/)
Making Models with Lasers
https://hackaday.com/2019/11/16/making-models-with-lasers/
Good design starts with a good idea, and being able to flesh that idea out with a model. In the electronics world, we would build a model on a breadboard before soldering everything together. In much the same way that the industrial designer [Eric Strebel] makes models of his creations …read more (https://hackaday.com/2019/11/16/making-models-with-lasers/)
https://hackaday.com/2019/11/16/making-models-with-lasers/
Good design starts with a good idea, and being able to flesh that idea out with a model. In the electronics world, we would build a model on a breadboard before soldering everything together. In much the same way that the industrial designer [Eric Strebel] makes models of his creations …read more (https://hackaday.com/2019/11/16/making-models-with-lasers/)
Behind the Scenes of the 2019 Superconference Badge
https://hackaday.com/2019/11/16/behind-the-scenes-of-the-2019-superconference-badge/
If you count yourself among the several hundred of our closest friends that have joined us at Supplyframe HQ for the 2019 Hackaday Superconference, then by now you’ll have your hands on one of this year’s incredible FPGA badges. It should come as no surprise that an incredible amount of …read more (https://hackaday.com/2019/11/16/behind-the-scenes-of-the-2019-superconference-badge/)
https://hackaday.com/2019/11/16/behind-the-scenes-of-the-2019-superconference-badge/
If you count yourself among the several hundred of our closest friends that have joined us at Supplyframe HQ for the 2019 Hackaday Superconference, then by now you’ll have your hands on one of this year’s incredible FPGA badges. It should come as no surprise that an incredible amount of …read more (https://hackaday.com/2019/11/16/behind-the-scenes-of-the-2019-superconference-badge/)
FieldKit is the Grand Prize winner of the 2019 Hackaday Prize
https://hackaday.com/2019/11/16/fieldkit-is-the-grand-prize-winner-of-the-2019-hackaday-prize/
FieldKit, an open-source, modular sensor system for conducting research in harsh environments has just been named the Grand Prize winner of the 2019 Hackaday Prize. The award for claiming the top place and title of “Best Product” in this nine-month global engineering initiative is $125,000. Five other top winners and …read more (https://hackaday.com/2019/11/16/fieldkit-is-the-grand-prize-winner-of-the-2019-hackaday-prize/)
https://hackaday.com/2019/11/16/fieldkit-is-the-grand-prize-winner-of-the-2019-hackaday-prize/
FieldKit, an open-source, modular sensor system for conducting research in harsh environments has just been named the Grand Prize winner of the 2019 Hackaday Prize. The award for claiming the top place and title of “Best Product” in this nine-month global engineering initiative is $125,000. Five other top winners and …read more (https://hackaday.com/2019/11/16/fieldkit-is-the-grand-prize-winner-of-the-2019-hackaday-prize/)
How To Design A BGA breakout Module
https://hackaday.com/2019/11/16/how-to-design-a-bga-breakout-module/
Surface mount devices can take some adjusting to for hackers primarily used to working with through-hole components. Despite this, the lure of the hottest new parts has enticed even the most reticent to learn to work with the technology. Of course, time rolls on and BGA parts bring further difficulties. …read more (https://hackaday.com/2019/11/16/how-to-design-a-bga-breakout-module/)
https://hackaday.com/2019/11/16/how-to-design-a-bga-breakout-module/
Surface mount devices can take some adjusting to for hackers primarily used to working with through-hole components. Despite this, the lure of the hottest new parts has enticed even the most reticent to learn to work with the technology. Of course, time rolls on and BGA parts bring further difficulties. …read more (https://hackaday.com/2019/11/16/how-to-design-a-bga-breakout-module/)