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Unmanned Sailboat Traverses The North Atlantic
Sailboats have been traversing the Atlantic Ocean since before 1592, sailing through sunshine, wind, and rain. The one thing that they’ve all had in common has been a captain to pilot the ship across...
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CORDIC Brings Math To FPGA Designs
We are always excited when we see [Hamster] post an FPGA project, because it is usually something good. His latest post doesn’t disappoint and shows how he uses the CORDIC algorithm to generate very...
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Pun Intended: Bare Metal Attracts Rust
Programming languages tend to polarize, and Rust is by far no exception. Whether it will stick around and grow as an alternative for the lower levels or not — time will tell. In the meantime, if...
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Modular Keyboards For CAD, Gaming, And Video Editing
Of all the input devices, the keyboard is the greatest. This comes at a cost, though: there were times back in the Before Days, when video and music editing applications came with custom keyboards....
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Shoelace-Tying Robot With Only Two Motors
Many things that humans do are very difficult for machines. Case in point: tying shoelaces. Think of the intricate dance of fingers crossing over fingers that it takes to pass off a lace from one hand...
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A Switching Power Supply, 1940s-Style
“They don’t build ’em like they used to.” There’s plenty of truth to that old saw, especially when a switch-mode power supply from the 1940s still works with its original parts. But when said power...
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See Binary On Your Breadboard
When you’re debugging a board which has an ESP32, Raspberry Pi, or Arduino, it’s easy to slap on a small LCD display or connect via WiFi to see what’s wrong. At least, that’s what the kids are doing....
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Cheap RC Boat Turned Weirdly Capable Seaplane
What do you get when you combine a cheap RC boat from Walmart, foam board, a couple powerful motors, and some aluminum cans? Most people would just end up with a pile of garbage, but we’ve already...
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Now, Finally, We Can Play With Power
In case you’re not a ’90s kid, the Nintendo Power Glove is the greatest device for human-computer interaction ever created. It’s so good, they called it bad, and then they made a movie about it. At...
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Hackaday Links: September 9, 2018
Octoprint is one of those must-have apps for 3D printers. All you need is a Raspberry Pi, an SD card, and a USB cable, and you can control your 3D printer from anywhere in the house. Of course, some...
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Electromagnetic Field: A Cyberpunk Headdress To Be Noticed In
At the recent Electromagnetic Field hacker camp in the UK, one of the highlights was the Null Sector, a cyberpunk-themed zone best described as something close to the set of Blade Runner made from...
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3D Printed Radius Gauge, Just Add Calipers (And A Wee Bit Of Math)
With 3D printed arms of fixed measurements, the depth reading from a set of digital calipers can be used to calculate the radius of a curve. Specialized tools that focus on one particular job tend to...
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Video Quick Bit: The Best In Human Computer Interfaces
[embedded content] We’re neck deep in the Hackaday Prize, and we just wrapped up the Human Computer Interface Challenge. This is an incredible contest to go beyond traditional mice and keyboards to...
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Bixel, An Open Source 16×16 Interactive LED Array
The phrase “Go big or go home” is clearly not lost on [Adam Haile] and [Dan Ternes] of Maniacal Labs. For years they’ve been thinking of creating a giant LED matrix where each “pixel” doubled as a...
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A 3D Printed Marble Clock
There are clocks with pendulums, gears, and circuits. How about one with marbles? Initially designed in the ’70s, rolling ball clocks came in many designs and materials, but this is the future, so...
View ArticleUnphotogenic Lighting As A Feature
Have you ever taken a picture indoors and had unsightly black bars interrupt your otherwise gorgeous photo? They are caused by lighting which flickers in and out in its normal operation. Some people...
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TI(ny) Is A New Take On The TI-99/4A
Way back in the 1980s, in the heyday of the personal computer revolution, Texas Instruments were one of the major players. The TI-99/4A was one of their more popular machines, selling 2.8 million...
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Using Motors As Encoders
If you have a brushless motor, you have some magnets, a bunch of coils arranged in a circle, and theoretically, all the parts you need to build a rotary encoder. A lot of people have used brushless or...
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Turning A Tiny FLIR Into An Action Cam With FPGAs
FLIR are making some really great miniature thermal cameras these days, designed for applications such as self-driving cars, and tools that help keep firefighters safe. That’s great and all, but these...
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Damaged Power Cord Repaired With Shop-Made Mold
We’ve likely all seen a power tool with a less-than-functional strain relief at one end of the power cord or the other. Fixing the plug end is easy, but at the tool end things are a little harder and...
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