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Hams see Dark Side Of The Moon Without Pink Floyd
Ham radio operators bouncing signals off the moon have become old hat. But a ham radio transmitter on the Chinese Longjiang-2 satellite is orbiting the moon and has sent back pictures of the Earth and...
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Circuit Bending A TV For Better Input
If you haven’t noticed, CRTs are getting hard to find. You can’t get them in Goodwill, because thrift stores don’t take giant tube TVs anymore. You can’t find them on the curb set out for the trash...
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Performing A Chip Transplant To Resurrect A Dead Board
[Uri Shaked] accidentally touched a GPIO pin on his 3.3 V board with a 12 V alligator clip, frying the board. Sound familiar? A replacement would have cost $60, which for him wasn’t cheap. Also, he...
View ArticleHacker Pops Top On NFC Vending Machines
Vending machines used to be a pretty simple affair: you put some coins in, and food or drink that in all likelihood isn’t fit for human consumption comes out. But like everything else today, they are...
View ArticleModular Violin Takes A Bow
They say the only difference between a violin and a fiddle is the way you play it. If that’s so, this modular violin will need a new name, since it can be broken apart and changed in ways that make it...
View ArticleFIDO2 Authentication In All The Colors
Here at Hackaday, we have a soft spot for security dongles. When a new two-factor-authentication dongle is open source, uses USB and NFC, and supports FIDO2, the newest 2FA standard, we take notice....
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LibSSH Vuln: You Don’t Need to See my Authentication
Another day, another CVE (Common Vulnerabilities and Exposures). Getting a CVE number assigned to a vulnerability is a stamp of authenticity that you have a real problem on your hands. CVE-2018-10933...
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Can A Motorized Bicycle Run On Trees?
Some of the earliest automobiles weren’t powered by refined petrochemicals, but instead wood gas. This wood gas is produced by burning wood or charcoal, capturing the fumes given off, and burning...
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DIY Arc Light Makes An Unnecessarily Powerful Bicycle Headlight
Remember when tricking out a bike with a headlight meant clamping a big, chrome, bullet-shaped light to your handlebar and bolting a small generator to your front fork? Turning on the headlight meant...
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3D Printing, Halloween Style
The wonders of 3D printing don’t stop coming. Whether it’s printing tools on the International Space Station, printing houses out of concrete, or just making spare parts for a child’s toy, there’s...
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Use Nodes to Code Loads of G-code for 3D CNC Carving
Most CNC workflows start with a 3D model, which is then passed to CAM software to be converted into the G-code language that CNC machines love and understand. G-code, however, is simple enough that...
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US Announces Withdraw From Postal Treaty; International Shipping Prices...
The United States has announced plans to withdraw from a 144-year postal treaty that sets lower international shipping rates. The US claims this treaty gives countries like China and Singapore an...
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Reverse Engineering CMOS
ICs have certainly changed electronics, but how much do you really know about how they are built on the inside? While decapsulating and studying a modern CPU with 14 nanometer geometry is probably not...
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SandBot Happily And Tirelessly Rolls Patterns In Sand
The patience and precision involved with drawing geometric patterns in sand is right up a robot’s alley, and demonstrating this is [rob dobson]’s SandBot, a robot that draws patterns thanks to an arm...
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Playing Doom on Keysight Oscilloscope via Windows CE
We all know the drill when buying a digital oscilloscope: buy the most hackable model. Some choose to void the warranty right away and access features for which the manufacturer has kindly provided all...
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The Math That Makes Computers Go, Built On a Tiny PCB
A computer is, at its core, just a bunch of transistors wired together. Once you have enough transistors on a board, though, one of the first layers of abstraction that arises is the Arithmetic Logic...
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Redeem Your Irresponsible 90s Self
If you were a youth in the 90s, odds are good that you were a part of the virtual pet fad and had your very own beeping Tamagotchi to take care of, much to the chagrin of your parents. Without the...
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Decorative Light Box Lets You Guess The Time
Telling time by using the current position of the sun is nothing revolutionary — though it probably was quite the “life hack” back in ancient times, we can assume. On the other hand, showing time by...
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Bradley Gawthrop Loves Wiring and so Should You
Wiring is one of those things that we’ve all had to do on a project, but probably didn’t give a lot of thought to. It’s often the last thing that happens during the build, and almost certainly doesn’t...
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An Open Controller For Woodwind Instruments
Engineers, hackers, and makers can most certainly build a musical gadget of some kind. They’ll build synths, they’ll build aerophones, and they’ll take the idea of mercury delay line memory, two...
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