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A Turing-Complete CPU From RAM
Building a general-purpose computer means that you’ll have to take a lot of use cases into consideration, and while the end product might be useful for a lot of situations, it will inherently contain...
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DARPA Subterranean Challenge Urban Circuit Now Livestreaming
Currently underway is the DARPA Subterranean Challenge (SubT) systems competition for urban circuits streamed live on YouTube now through Wednesday, February 26th. The DARPA Grand Challenge of 2004...
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Stout Homebrew Radio Pumps Out 200W of AM Goodness
In this day and age, with cheap online shopping, software defined radio and bargain-basement Baofengs from China, the upstart radio ham is spoilt for choice. Of course, there’s nothing quite like the...
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Irrigation Controller Uses Google Calendar To Make Things Easy
Irrigation controllers have been around for a long time, often using similar hardware inside that would be familiar to the average maker. However, many of the products on the shelf at your local...
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Software Defined Everything with Mike Ossmann and Kate Temkin
Software defined radio has become a staple of the RF tinkerer, but it’s likely that very few of us have ever taken their software defined toolchain outside the bounds of radio. It’s an area explored by...
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Steel Pegboard Makes For A Tidy Charging Station
Do you have a bunch of electronic devices that all have different styles of chargers and batteries? Of course you do, so does everyone else. While there’s been some headway made towards standardizing...
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Arkanoid Clock Is Exactly What It Sounds Like
A clock can be a simple device that keeps you aware of the current time, but it can also be so much more. It can express an aesthetic ideal from yesteryear, or be a throwback to a popular cultural...
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How To Slice Lightweight Aircraft Parts For 3D Printing
Historically, remote control aircraft were produced much like their early full-sized counterparts. Wooden structures were covered with adhesives and taut fabric membranes. Other techniques later came...
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Restoring the Coolest Laptop Ever
Well-seasoned readers will no doubt remember GRiD laptops, the once and always tacti-cool computers that dominated the military market for decades. GRiDs were the first laptops to go to space, and...
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This Mallet Has Backwards Dovetails… That’s Impossible!
Dovetails are a wedge-shaped joint found in woodworking. The wedge makes for strong joinery because a force that tries to pull it apart also increases the friction on the joint. This mallet has...
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Fun-Size Tesla Might Be The World’s Smallest
We get all kinds of tips about “the world’s something-est” widget, which normally end up attracting the debunkers in droves. So normally, we shy away from making superlative claims about a project, no...
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A High Performance Ski-Sled For The Big Kids
Sledding is a pastime often left to younger humans, though there is no good reason why this must be the case. [JoshXarles] is an adult with a strong enthusiasm for carving up the snow, and set out to...
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3D Printable Nameplates From Your Web Browser
It’s an unwritten rule that all proper pieces of shop equipment need a nameplate. Otherwise, how are you going to know what name to use when you curse it under your breath? In the old days these would...
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Gesture Control The Easy Way
Gesture control is a technology that has floated around for quite a while, but never quite reached mainstream acceptance. Wii Bowling was fun for a while, but we’re not regularly using gestures to...
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The Smallest Cell Phone Picture
Mobile phones are the photography tool for most of us, but they are a blunt tool. If you love astrophotography, you buy a DSLR and a lens adapter. Infrared photography needs camera surgery or a...
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An Open Source Ebike
In the ebike world, there are two paths. The first is a homemade kit bike with motors and controllers from China. The second is a prebuilt bike from a manufacturer like Giant, with motors and...
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Hackaday Links: February 23, 2020
If you think your data rates suck, take pity on New Horizons. The space probe, which gave us lovely pictures of the hapless one-time planet Pluto after its 2015 flyby, continued to plunge and explore...
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Reaching Serenity: Porting Git To A Homebrew Operating System
Life is all about the little joys — such as waking up in the morning and realizing there’s still plenty of time before you have to actually get up. Or getting up anyway to watch a delightful sunrise...
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A Z80 Computer At The Next Level
At the close of the 8-bit home computer era there were some machines produced that attempted to bridge the gap between the 8- and 16-bit worlds, either by providing a 16-bit device with a backwards...
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Bitluni Brings All the ESP-32 Multimedia Hacks to Supercon
Of all the people I was looking forward to meeting at Supercon, aside from my Hackaday colleagues with whom I had worked for five years without ever meeting, was a fellow from Germany named Matthias...
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