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Circuit VR: Redundant Flip Flops and Voting Logic
We are somewhat spoiled because electronics today are very reliable compared to even a few decades ago. Most modern electronics obey the bathtub curve. If they don’t fail right away, they won’t fail...
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How To Deal With A Cheap Spectrum Analyzer
The Hackaday Superconference is all about showcasing the hardware heroics of the Hackaday community. We also have a peer-reviewed journal with the same goal, and for the 2018 Hackaday Superconference...
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Billiard Ball Finds a New Home in Custom Trackball Mouse
They walk among us, unseen by polite society. They seem ordinary enough on the outside but they hide a dark secret – sitting beside their keyboards are trackballs instead of mice. We know, it’s hard...
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Restoring A Forgotten Dot-Matrix Printer
Dot matrix printers are the dinosaurs that won’t go extinct. They are not unlike a typewriter with the type bars behind the ink ribbon replaced by a row of metal pins controlled by solenoids, each pin...
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Macintosh API Comes To Linux, Android
Unlike DOS, early versions of Windows, and most *nixes, the classic Mac operating system is weird. Contained in the ROM are subroutines to draw windows, pop up dialog boxes, and other various tasks...
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7-Segment Display is 3D Printed and Hand Cranked
[Peter Lehnér] has designed a brilliant 7-segment flip-segment display that doesn’t really flip. In fact, it doesn’t use electromagnets at all. This one is 3D printed and hand cranked. It’s a clever...
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3D Printed Microscope Stage Offers Precise Movement
3D printing isn’t something you would usually associate with a high precision device, but this one shows that it can be used to create rather intricate things when needed. The Openflexure is a...
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Sorter Uses Cardboard to Organize Card Hoard
If you collect trading cards of any kind, you know that storage quickly becomes an issue. Just ask [theguymasamato]. He used to be really into trading cards, and got back into it when his kids caught...
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Rebuilding The First Vocal Encryption System
Back in the early days of radio, it was quickly apparent that the technology would revolutionize warfare, but only if some way could be found to prevent enemies from hearing what was said. During...
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Casting Concrete with 3D Printed Molds
[Thomas Sanladerer] wanted to create some molds using 3D printing for concrete and plaster. He used a delta printer with flexible filament and documented his process in the video below. If you’ve...
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Open Source Fader Bank Modulates our Hearts
Here at Hackaday, we love knobs and buttons. So what could be better than one button? How about 16! No deep philosophy about the true nature of Making here; [infovore], [tehn], and [shellfritsch] put...
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Quartet of SMD Resistors Used to Sense Z-Axis Height
Here’s a neat trick for your next 3D-printer build or retrofit: a Z-axis sensor using a DIY strain gauge made from SMD resistors. We’re betting it could have plenty of other applications, too....
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Air Knife Keeps GoPro Lens Clean In Messy Environments
Before the GoPro, shooting video of messy, fast-paced, or dangerous things was very different. There were commercial sports camera rigs and various industrial solutions, but the GoPro, with its...
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Automate Your Comfort Food Prep with an IoT Grilled Cheese Robot
What exactly qualifies as comfort food is very much in the palate of the comfortee. Grilled cheese may not work for everyone under every circumstance, but we’ll risk a bet that the gooey delicacy is...
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Raspberry Pi’s Latest Upgrade: the Compute Module 3+
We’ve become so used to the Raspberry Pi line of boards that have appeared in ever-increasing power capabilities since that leap-year morning in 2012 when the inexpensive and now ubiquitous single...
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The Cyborgs Among Us: Exoskeletons Go Mainstream
Every technological advancement seems to have a sharp inflection point, a time before which it seems like any early adopters are considered kooks, but beyond which the device or service quickly becomes...
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Ben Krasnow at Supercon: Making Alien Technology in Your Own Shop
Ben Krasnow has a vision of future electronics: instead of the present PCB-screwed-into-a-plastic-box construction, flexible circuits will be deposited straight onto the plastic body of the device...
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DIY Vacuum Table Enhances PCB Milling
CNC milling a copper-clad board is an effective way to create a PCB by cutting away copper to form traces instead of etching it away chemically, and [loska] has improved that process further with his...
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Now That’s What I Call Crypto: 10 Years of The Best of Bitcoin
On January 3rd, 2009, the Genesis Block was created. This was the first entry on the Bitcoin blockchain. Because of the nature of Bitcoin, all transactions lead back to this block. This is where...
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Interfacing The Sidewinder Joystick to AVRs
The Sidewinder line was a series of gaming peripherals produced by Microsoft, starting in the 1990s. After some initial stumbles, several cutting edge joysticks were released, at a time when the home...
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