Monthly Archives: July 2018

Hackaday Links: July 29, 2018

Another holy scroll for the Church of Robotron. PoC || GTFO is a semi-annual journal of hardware exploitation, and something you must read. About a year ago, No Starch Press released the first Bible of PoC || GTFO, and now it’s time for a new testament. PoC || GTFO Volume 2 is out now, covering Elegies of the Second Crypt War to Stones from the Ivory Tower, Only as Ballast. It’s still Bible-shaped, with a leatherette cover and gilt edges.

KiCad version 5 is out, and you know what that means: It’s time to start on version 6. To …read more

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Posted in Hackaday Columns, Hackaday links, KiCAD, mergers and acquisitions, nxp, PoC || GTFO, qualcomm, stepper, ustepper | Leave a comment

Vampire Charger is a Rugged Anything-to-5VDC Converter

USB sockets providing 5 VDC are so ubiquitous as a power source that just about any piece of modern portable technology can use them to run or charge. USB power is so common, in fact, that it’s easy to take for granted. But in an emergency or in the wake of a disaster, a working cell phone or GPS can be a life saver and it would be wise not to count on the availability of a clean, reliable USB power supply.

That’s where the Vampire Charger by [Matteo Borri] and [Lisa Rein] comes in. It is a piece of …read more

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Posted in disaster, emergency, emergency power, green hacks, hardware, power conversion, Power Harvesting, The Hackaday Prize, usb, vampire | Leave a comment

Flexible PCB Becomes The Actuator

An electromagnetic coil gun takes a line of electromagnets working together to form a moving electromagnetic field. These fields accelerate a project and boom, you have electricity moving matter, often at an impressive rate of speed.

[Carl Bugeja] has taken the idea and in a sense turned it upon its head with his flexible PCB actuator. Now the line of electromagnets are the moving part and the magnetic object the stationary one. There is still a line of flat PCB inductors in the classic coil gun configuration, but as the title suggests on a flexible substrate.

The result is a …read more

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Posted in classic hacks, coil gun, flex PCB, flexible PCB, magnet, robots hacks | Leave a comment

1950’s AM Transmitter is Fun but Dangerous

[Mr. Carlson] bought a Globe Scout Model 40A ham radio transmitter at a hamfest. The 40A was a grand old transmitter full of tubes, high voltage, and a giant transformer. It is really interesting to see how much things have changed over the years. The transmitter is huge but has comparatively few parts. You needed a crystal for the frequency you wanted to talk. There were two little modules that were precursors to hybrid circuits (which were precursors to ICs) that were often called PECs or couplates (not couplets) but other than those, it is all tubes and discrete components …read more

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Posted in classic hacks, globe scout, ham radio, radio hacks | Leave a comment

The Apocalypse Bicycle

It seems to be a perennial among humans, the tendency among some to expect the End Times. Whether it was mediaeval Europeans who prepared for a Biblical Armageddon at the first sight of an astronomical phenomenon, 19th-century religious sects busy expecting a Noah’s flood, cold-war survivalists with bunkers under the lawn, or modern-day preppers buying survival gear, we have a weakness for thinking that Time’s Up even when history shows us repeatedly that it isn’t. Popular culture has even told us that the post-apocalyptic world will be kinda cool, with Mad Max-style rusty-looking jacked-up muscle cars and Tina …read more

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Posted in bicycle, cycling, transportation hacks | Leave a comment

Become The Rockstar Developer You’ve Always Dreamed Of Being

If you have ever worked in software-related industries, the chances are that the word “Rockstar” will elicit a visceral reaction. It’s a word used by a Certain Type Of Manager for an elite software developer who’s so 1337 they don’t play by the rules of ordinary mortals. In reality it’s use is invariably an indication of trouble ahead, either from clueless startups or troublesome rockstar developers making a toxic atmosphere for the mere members of the backing band. Hackaday has a team that brings together a huge breadth of experience, and we’ve been there.

Would you like to be a …read more

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Posted in programming, programming language, rocksrar, Software Development | Leave a comment

The Undead Remote

In the very late 1990s, something amazing was invented. White LEDs. These magical pieces of semiconductors first became commercially available in 1996, and by the early 2000s, you could buy a single 5mm white LED for less than a dollar in quantity one. A year or two later, an astonishing product showed up on infomercials airing on basic cable at 2 a.m. It was a flashlight that never needed batteries. With a small white LED, a few coils wrapped around a tube, and a magnet, you could just shake this flashlight to charge it. It’s just what you needed for …read more

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Posted in flashlight, remote, The Hackaday Prize, white led | Leave a comment

Save Some Steps with this Arduino Rapid Design Board

We’re all familiar with the wide variety of Arduino development boards available these days, and we see project after project wired up on a Nano or an Uno. Not that there’s anything wrong with that, of course, but there comes a point where some hobbyists want to move beyond plugging wires into header sockets and build the microcontroller right into their project. That’s when one generally learns that development boards do a lot more than break the microcontroller lines out to headers, and that rolling your own design means including all that supporting circuitry.

To make that transition easier, [Sean …read more

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Posted in breakout, castellated, development board, gpio, pcb, SAMD21 | Leave a comment

A Mobile Computer to Make William Gibson Jealous

The personal computers in science fiction books, movies, and games are way cooler than the dinky pieces of hardware we’re stuck with in the real world. Granted the modern laptop has a bit more style than the beige boxes of yesteryear, but they still aren’t half as l33t as the custom PowerBooks in Hackers. Luckily for those who dream of jacking into the Matrix, the average hacker now has access to the technology required to make a custom computer to whatever fanciful specifications they wish.

A perfect example is this “cyberdeck” created by [Tinfoil_Haberdashery]. Inspired by William Gibson’s Neuromancer, …read more

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Posted in computer hacks, cyberdeck, FPV, head mounted display, Intel NUC, Virtual Reality | Leave a comment

Screaming Channels Attack RF Security

As long as there has been radio, people have wanted to eavesdrop on radio transmissions. In many cases, it is just a hobby activity like listening to a scanner or monitoring a local repeater. But in some cases, it is spy agencies or cyberhackers. [Giovanni Camurati] and his colleagues have been working on a slightly different way to attack Bluetooth radio communications using a technique that could apply to other radio types, too. The attack relies on the ubiquitous use of mixed-signal ICs to make cheap radios like Bluetooth dongles. They call it “Screaming Channels” and — in a nutshell …read more

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Posted in bluetooth, cybersecurity, security hacks, tempest, wireless hacks, wireless security | Leave a comment