Yak Shaving: Hacker Mode vs Maker Mode

When I start up a new project, one that’s going to be worth writing up later on, I find it’s useful to get myself into the right mindset. I’m not a big planner like some people are — sometimes I like to let the project find its own way. But…... [Continue...]
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[CNLohr], ESP8266, USB…

“Round up the usual suspects…” [CNLohr] just can’t get enough of the ESP8266 these days — now he’s working on getting a version of V-USB software low-speed USB device emulation working on the thing. (GitHub link here, video also embedded below.) That’s not likely to be an afternoon project, and…... [Continue...]
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How To Detect And Find Rogue Cell Towers

Software defined radios are getting better and better all the time. The balaclava-wearing hackers know it, too. From what we saw at HOPE in New York a few weeks ago, we’re just months away from being able to put a femtocell in a desktop computer for under $3,000. In less…... [Continue...]
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Copy Protection Traps in GEOS for C64

Major GEOS applications on the Commodore 64 protect themselves from unauthorized duplication by keying themselves to the operating system’s serial number. To avoid tampering with this mechanism, the system contains some elaborate traps, which will be discussed in this article. GEOS Copy Protection The GEOS boot disk protects itself with…... [Continue...]
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TiLDA MKπ, The EMF Camp 2016 Badge

The Scottish Consulate has stamped its last passport, the Dutch fire tower has belched its final flame, and the Gold Members Lounge has followed the Hacienda and the Marquee into clubland oblivion. EMF Camp 2016 is over, so all the 1500 or so attendees have left are the memories, photographs,…... [Continue...]
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Hackaday Prize Entry: Solar WiFi Rover Roves At Night

[TK] has a stretch goal for his RC car project — enabling it to recharge on solar power during the day and roam around under remote Internet control at night. It’s like a miniature, backyard version of NASA’s Curiosity rover. Right now, he’s gotten a Raspberry Pi Zero and a…... [Continue...]
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Puzzlingly Simple Tutorial On GPS Time Corrected Clock

We’re not sure if [Derek Lieber] is messing with us or proving a point. Why are you doing this [Derek]? We know there’s technically enough information to build the clock. You even included the code. Couldn’t you have at least thrown in a couple of words? Do we have to…... [Continue...]
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Commodore PET mods at VCF West 2016

Here at the Vintage Computer Festival, we’ve found oodles of odds and ends from the past. Some, however, have gotten a modern twist like [bitfixer’s] recent Commodore PET project upgrades. First off is [bitfixer’s] Augmented Reality upgrade. By the power of two iPhones and one raspberry Pi, the user dons…... [Continue...]
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Pwning With Sewing Needles

If you don’t have root, you don’t own a device, despite what hundreds of Internet of Things manufacturers would tell you. Being able to access and write to that embedded Linux system in your new flashy gadget is what you need to truly own a device, and unfortunately this is…... [Continue...]
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Editor Wars: The Revenge of Vim

Rarely on these pages have I read such a fluff piece! Al Williams’ coverage of Emacs versus Vim was an affront to the type of in-depth coverage our Hackaday readers deserve. While attempting to be “impartial” he gave a seven-sentence summary of Vim, the Ultimate Editor. Seven sentences! Steam is…... [Continue...]
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DIY ECG with 1 op-amp

A DIY ECG made from single op-amp (LM741) and 5 resistors by Scott Harden: I made surprisingly good ECG from a single op-amp and 5 resistors! An ECG (electrocardiograph, sometimes called EKG) is a graph of the electrical potential your heart produces as it beats. Seven years ago I posted…... [Continue...]
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Differential Analyzer Cranks out Math like a Champ at VCF 2016

Here at VCF, we stumbled across a gigantic contraption that spanned several tables. Rube Goldberg machine this was not. Instead, this device actually does something useful! [Tim Robinson’s] differential analyzer can solve differential equations through several stages of mechanical integrators. The result is a pen-plot graph of the solution to…... [Continue...]
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In Paris Buying a 3D Printer is Cheaper than Renting Machine Time

As many of the members of the Brian Benchoff hate/fan club know, the life of a Hackaday writer is nomadic and filled with exciting adventures. Jenny List is actually crime fighting cyborg (think Bond); it’s why she knows so much about electronics. James Hobson is Iron Man. The list goes on. There…... [Continue...]
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The Terrible Security Of Bluetooth Locks

Bluetooth devices are everywhere these days, and nothing compromises your opsec more than a bevy of smartphones, smart watches, fitbits, strange electronic conference badges, and other electronic ephemera we adorn ourselves with to make us better people, happier, and more productive members of society. Bluetooth isn’t limited to wearables, either;…... [Continue...]
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Electroshock Timer Will Speed Up Every Game of Settlers of Catan

The fun of playing Settlers of Catan is only matched by the desire to punch your friend when their turn drags on with endless deliberating. [Alpha Phoenix] has solved that quandary of inefficient play by building the Settlers of Catan: Electroshock Therapy Expansion. [Alpha Phoenix] is holding back on the…... [Continue...]
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Hackaday Prize Entry: A WiFi Swiss Army Knife

WiFi is all around us, but if you want to work with this ubiquitous networking protocol, you’ll need to pull out a laptop or smartphone like a caveman. [Daniel] has a better idea. It’ s a simple, compact tool for cracking WiFi passwords or sending deauth packets to everyone at…... [Continue...]
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Two Pins for the Price of One

One of the most common problems in the world of microcontrollers is running out of resources. Sometimes it’s memory, where the code must be pared down to fit into the flash on the microcontroller. Other times, as [Fabien] found out when he ran out of pins, the limitations are entirely…... [Continue...]
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Hackaday Links: August 7, 2016

The Starship Enterprise (no bloody A, B, C, or D) recently got a makeover. It was donated to the Smithsonian, and the workers at the Air and Space Museum took it apart and put it back together. Why? It’s the 50th anniversary of TOS. Hopefully the new show will be using some…... [Continue...]
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