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Hands-on: Hacker Hotel 2019 Badge Packs ESP32, E-Ink, and a Shared Heritage
When you go to a hacker conference, you always hope there’s going to be a hardware badge. This is an interactive piece of custom electronics that gets you in the door while also delighting and...
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An ATtiny Metal Detector
A metal detector used to be an entirely analogue instrument, an oscillator whose frequency changed with the inductance of its sense coil when a piece of metal approached. [Łukasz Podkalicki] shows us...
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The FAA Mandates External Registration Markings For Drones
Drone fliers in the USA must soon display their registration markings on the exterior of their craft, rather than as was previously acceptable, in accessible interior compartments. This important but...
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Ask Hackaday: Can We Get Someone To Buy And Destroy RAM?
We like blinky things. We’re moths drawn to the flame of serially-addressable RGB LEDs. If the LEDs are smaller, we want to know. If you can drive more of them, we want to know. That said, the most...
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Teardown: AppLights Personalized Projection
Listen, it hurts to hear, but somebody needs to say it. It’s over, OK? You’ve got to admit it and move on. Sure, you could get away with it for a week or two in January, but now it’s just getting...
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KiCon Gets Our KiCad Conference On
Oh, what’s KiCon you say? KiCon is the first dedicated conference on our favorite libre EDA tool: KiCad, organized by friend of Hackaday Chris Gammell and scheduled for April 26 and 27th in Chicago....
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Mayak Turns WiFi Traffic Into Sound
Dial-up modems were well known for their screeching soundtrack during the connection process. Modern networking eschews audio based communication methods, so we no longer have to deal with such...
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New Part Day: The STM32 That Runs Linux
There are a lot of ARM microcontrollers out there, and the parts from ST are featured prominently is the high-power builds we’re seeing. The STM32F4 and ~F7 are powerhouses with great support, and the...
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Threading 3D Printed Parts: How to Use Heat-Set Inserts
We can make our 3D-printed parts even more capable when we start mixing them with some essential “mechanical vitamins.” By combining prints with screws, nuts, fasteners, and pins, we get a rich...
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Anodize Aluminum Easily
We’ve all seen brightly-colored pieces of aluminum and can identify them as anodized. But what does that mean, exactly? A recent video from [Ariel Yahni] starring [Wawa] — a four-legged assistant —...
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Computer Algebra for Electronic Design
Don’t get me wrong. Like most people, there’s nothing I enjoy more than solving a long, involved math problem by hand. But, sometimes, a few pages of algebraic scratches on paper is just a means to an...
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Zach Archer: Live Coding 500 Watts For ToorCamp
ToorCamp is a five-day open air tech camping event held every two years somewhere around the northwest corner of Washington state. Think of it as something like Burning Man, except you can survive for...
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Teardown Of A Luxury Bluetooth Nightlight
If you had asked us yesterday what peak nightlight technology looked like, we might have said one of those LED panels that you stick in the outlet. At least it beats one of those little wimpy light...
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Hackaday Podcast Ep8 – The Art Episode: Joe Kim, Strings And CRTs, Hydrogen...
We know you love the original art on Hackaday. Those fantastic illustrations are the work of Joe Kim, and he joins us as a guest on this week’s episode to talk about his background, what inspires him,...
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Leigh Johnson’s Guide To Machine Vision On Raspberry Pi
We salute hackers who make technology useful for people in emerging markets. Leigh Johnson joined that select group when she accepted the challenge to build portable machine vision units that work...
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Grape Plasma Explained
You’ve probably seen the videos of a grape — cut almost totally in half — in a microwave creates a plasma. A recent physics paper studies the phenomenon with a lot of high-tech gear and now the actual...
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Meet Tympan, The Open Hardware Hearing Aid
If you’re the kind of person who’s serious about using open source software and hardware, relying on a medical device like a pacemaker or an insulin pump can be a particular insult. You wouldn’t trust...
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A Big, Mean, Inflated Machine
A Jeep is fun offroad, a motorcycle perhaps even more so. Diehard renegades go even further and get about in Unimogs and on snowmobiles. [amazingdiyprojects] might just have topped them all however,...
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WiFi Makes The Heart Glow Fonder
It’s more than a little too late for Valentine’s Day this year, but if you start now, you’re sure to be looking good next February. Print something that truly conveys how you feel, through the magic...
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The 8-Bit Guy Builds A 16-Bit Computer
One of the better retro historians out there on YouTube is the 8-Bit Guy, and after years of wanting to do something like this, it’s finally happening. The 8-Bit Guy is building his dream computer,...
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