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Ask Hackaday: How Would You Detect A Marauding Drone?
The last few days have seen drone stories in the news, as London’s Gatwick airport remained closed for a couple of days amid a spate of drone reports. The police remained baffled, arrested a couple who...
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A Smartwatch You Can Easily Build Yourself
The concept of a smartwatch was thrown around for a long time before the technology truly came to fruition. Through the pursuit of miniaturisation, modern smartwatches are sleek, compact, and...
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Designing Tiny Motors Right Into The Robot’s Circuit Board
Motors are not overly complex, but this one is downright simple. Carl Bujega has been working on a motor design that heavily relies on the capabilities of the printed circuit board (PCB) fabrication...
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Add A Trackpoint To A Mechanical Keyboard
People love their tech, and feel like something’s missing when it’s not there. This is the story of one person’s desire to have the venerable trackpoint in their new keyboard. [Klapse] loves a Lenovo...
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Use Your Game Boy As A Wireless Controller
Like many retro favourites, the Game Boy is in no way dead — development continues apace through its many fans.But what about the hardware side? This is a particularly interesting one: [Alex] wondered...
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Your Face is Going Places You May Not Like
Many Chinese cities, among them Ningbo, are investing heavily in AI and facial recognition technology. Uses range from border control — at Shanghai’s international airport and the border crossing with...
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1973: When Calculators Were Built Like Computers
Should you ever pick up [Steve Wozniak]’s autobiography, you will learn that in the early 1970s when his friend [Steve Jobs] was working for Atari, [Woz] was designing calculators for Hewlett Packard....
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Fail of the Week: EPROMs, Rats’ Nests, Tanning Lamps, and Cardboard on Fire
It all started when I bought a late-1990s synthesizer that needed a firmware upgrade. One could simply pull the ROM chip, ship it off to Yamaha for a free replacement, and swap in the new one — in...
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An Easy Way To MIDI Sync Your Eurorack Build
Eurorack synthesizer builds are known for a lot of things; simplicity isn’t necessarily one of them. However, not everything on a modular synthesizer build has to be inordinately complicated, a mess...
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A Practical Portable Wii Emerges from the Memes
A few months ago, [Shank] built what will almost certainly go down in history as the world’s smallest portable Nintendo Wii. As it turns out, the Wii motherboard is home to a lot of unnecessary...
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Compiling NodeMCU for the ESP32 With Support for Public-Private Key Encryption
When I began programming microcontrollers in 2003, I had picked up the Atmel STK-500 and learned assembler for their ATtiny and ATmega lines. At the time I thought it was great – the emulator and...
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2600-Inspired Handheld Brings the Faux Woodgrain
The Atari 2600 is a console from a very different time, when home appliances, furniture, and even automobiles were all covered in fake vinyl woodgrain veneer. Somehow it was the in thing for a decade,...
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The Mother of All Demos, 50 Years On
If you’re like me, chances are pretty good that you’ve been taught that all the elements of the modern computer user interface — programs running in windows, menus, icons, WYSIWYG editing of text...
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Pokemon Cries And How They Work
If you grew up watching the Pokémon TV series, you’d naturally be familiar with the cries of all your favourite Pocket Monsters. Most of the creatures in the anime tend to say their own name, over and...
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Karakuri Kaizen: Hacks For The Factory Floor
Anyone who has an interest and/or career in manufacturing would have heard of Kaizen, generally a concept to continuously improve your process everywhere. Under that huge umbrella is Karakuri Kaizen,...
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Why Converting Classic Cars to Electric Drive Is A Thing
A vintage British sportscar is a wonderful thing. Inimitable style and luxury, beautiful curves, and a soundtrack that could make even Vinnie Jones shed a tear. However, even under the most diligent...
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The Mystery of the Clacking Clanking Scraping Sound
Hackers tend to face household problems a little differently than ordinary folk. Where the average person sees a painful repair bill or a replacement appliance, the hacker sees a difficult...
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Finding the Goldilocks Cell Module
If adding a cell modem is dealing with a drama queen of a hardware component, then choosing from among the many types of modules available turns the designer into an electronics Goldilocks. There are...
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Google Assistant, Now Available On Ham Radio
Depending on who you talk to, Google Assistant is either a tool capable of quickly and clearly answering audio queries in natural langauge, or a noisier and less useful version of Wolfram Alpha....
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Control Anything With A Chat Bot
In the world of Internet of Things, it’s easy enough to get something connected to the Internet. But what should you use to communicate with and control it? There are many standards and tools...
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