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Developing The Ultimate Open Source Radio Control Transmitter
While we’ve come a long way in terms of opening up the world of radio control to open source software, a good deal of the hardware itself is still closed up. You can flash a cheap RC transmitter with a...
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Phone For Hackers Launches A Crowdfunding Campaign
Based on the WiFi / Bluetooth wunderchip, clad in a polycarbonate frame, and looking like something that would be an amazing cell phone for 2005, the WiPhone is now available on Kickstarter. We’ve...
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The Three Faces Of The 555
In these days of cheap microcontrollers, it is hard to remember there was a time when timing things took real circuitry. Even today, for some applications it is hard to beat the ubiquitous 555 timer...
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WOPR: Building Hardware Worth Sharing
It wouldn’t be much of a stretch to assume that anyone reading Hackaday regularly has at least progressed to the point where they can connect an LED to a microcontroller and get it to blink without...
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Solar Circuit Sculpture Pumms the Night Away
A word of warning: Google for the definition of the word “pummer” at your own risk. Rest assured that this beautiful solar-powered circuit sculpture fits the only definition of pummer that we care to...
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Pocket-Sized Deauther Could Definitely Get You In Trouble
Interfering with radio communications, whether through jamming, deauthing attacks, or other meddling, is generally considered a crime, and one that attracts significant penalties. However, studying...
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Arduino Shield Makes Driving Nixies Easy
Nixie tubes are adored by hackers across the world for their warm glow that recalls an age of bitter nuclear standoffs and endless proxy wars. However, they’re not the easiest thing to drive, requiring...
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Hiding Messages In Magnets
Magnets have always been fun, particularly since the super-powerful neodymium type became readily available. You can stack them up, pull them apart, or, if you really want, use them for something...
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Cambridge Mini Uncon: Robots, Light Boxes, PCB Watches, and Retro Computers
At Hackaday, we are nothing without our community. We meet up at conferences, shows, and camps, but one of our favourite way to congregate is with the Unconference format. It’s an event where you can...
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CNC Your Own PCBs With A 3D Printed Mill
Yes, you can whip up a design for a printed circuit board, send it out to one of the many fab houses, and receive a finished, completed board in a week or two. There are quick-turn assembly houses...
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Recreating Classic Model Kits With Modern Tech
It used to be that if you wanted to make a nice scale model of an airplane, you’d be building the frame out of thin balsa ribs and covering it all up with tissue paper. Which incidentally was more or...
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Fizzle Loop Synth Does It With 555 Timers
For every project that uses an Arduino to make soup or an ESP8266 to hash bitcoin, there’s always someone out there uttering the same old refrain. I could have done it with a 555. More often than not,...
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We Were Really Overdue For Laser Jackets
Depending on who you talk to, everything is either fine, or we’re living in an oppressive cyberpunk dystopia in which we forgot to drench everything in colored neon lighting. There’s little to be done...
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This Week: Cyphercon 4.0
Dust off your rainbow tables and grab a burner laptop, this Thursday, April 11, Cyphercon 4.0 roars into Milwaukee, Wisconsin. It’s a security conference with all that entails, but there is a bit of...
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A Vintage Sony Portable TV, Brought Up To Date
In the time before smartphones for on-the-go visual entertainment, there were portable TVs. You might think of a portable TV as a luggable device, but the really cool ones were pocket-sized. Perhaps...
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Hacking 16GB into an Old PC That Doesn’t Want That Much
From the title, you might think this post is going to be some lame story about someone plugging in some RAM and maybe updating a BIOS. That’s where you’d be wrong. [Downtown Doug Brown] has a much...
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Hexagons – The Crazy New Breadboard
A breadboard is a great prototyping tool for verifying the sanity of a circuit design before taking the painstaking effort of soldering it all together permanently. After all, a mistake in this stage...
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Gliding Back Home From 60,000ft
If you want to play around with high altitudes, weather balloons are the way to go. With a bit of latex and some helium, it’s possible to scrape up against the edge of space without having to start...
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Restoring An HP LCZ Meter From The 1980s
We are fantastically lucky not only in the parts that are easily available to us at reasonable cost, but also for the affordable test equipment that we can have on our benches. It was not always this...
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DIY Air Conditioner Built From Weird Donor Appliance
There are some parts of the world where living without air conditioning borders on unthinkable. But in more moderate climates, it isn’t all that unusual. [Josh’s] apartment doesn’t have central air...
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