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Be a Fire Bender With The Power of Magnets
More often than you think, scientific progress starts with a simple statement: “Huh, that’s funny…” That’s the sign that someone has noticed something peculiar, and that’s the raw fuel of science...
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Fail Of The Week: How Not To Make A 3D Scanner
Sometimes the best you can say about a project is, “Nice start.” That’s the case for this as-yet awful DIY 3D scanner, which can serve both as a launching point for further development and a lesson in...
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DIY Vs. Commercially Made Solar Panel
The price of commercially made solar panels on eBay is around $1 per watt and have been for a few years, but the price of individual solar cells are likewise at a low price per watt, around $0.48....
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Edwin Armstrong’s Battle for FM Radio
Chances are you have at least one radio that can receive FM stations. Even though FM is becoming less used now with Internet and satellite options, it still is more popular than the older AM radio...
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Twenty Power Harvesting Projects Headed to the Hackaday Prize Finals
The Academy Awards of hardware creation is going on right now! The Hackaday Prize is a challenge to you — yes, you — to create the next great piece of Open Hardware. It is simply incomparable to...
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Simple RC to USB Interface
With the radio control hobby arguably larger now than it ever has been in the past, there’s a growing demand for high-fidelity PC simulators. Whether you want to be able to “fly” when it’s raining out...
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Open Source Power Converter For The Masses
GaN or Gallium Nitride Transistors have been in the news for their high-frequency and high-efficiency applications. Anyone interested in the Power Converter domain will love this open-source project...
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Help With Stuttering Could Come From Electricity
At the University of Oxford, [Jen Chesters] conducts therapy sessions with thirty men in a randomized clinical trial to test the effects of tDCS on subjects who stutter. Men are approximately four...
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HOPE XII: A FOSS Operating System for e-Readers
Free and open source software (FOSS) was a recurring theme during many of the talks during the HOPE XII conference, which should probably come as no surprise. Hackers aren’t big fans of being monitored...
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An Integrated Electromagnetic Lifting Module for Robots
The usual way a robot moves an object is by grabbing it with a gripper or using suction, but [Mile] believes that electromagnets offer a lot of advantages that are worth exploring, and has designed...
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ESP8266 Zelda Heart Responds To Tweets
It might not be enough to make you the Hero of Time, but this piece of Hylian interactive art would still be a worthy addition to your game room. [Jeremy Cook] writes in to tell us about how he put...
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Juggling Machine Listens to the Bounce to Keep Ball in the Air
It’s a seemingly simple task: bounce a ping-pong ball on a wooden paddle. So simple that almost anyone can pick up a ball and a paddle and make a reasonable job of it. Now, close your eyes and try to...
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GTA: San Andreas Radio Earns Six-Star Wanted Level
[Raphaël Yancey] wanted to be able to jam to Bounce FM and Radio:X all the time, without having to steal a car or a street sweeper in San Andreas. As people who like to put on the sad piano building...
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Hackaday Belgrade: Luka Mustafa on Exploiting IoT Niches
Ecology is a strange discipline. At its most basic, it’s the study of how living things interact with their environment. It doesn’t so much seek to explain how life works, but rather how lives work...
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Bringing Augmented Reality to the Workbench
[Ted Yapo] has big ideas for using Augmented Reality as a tool to enhance an electronics workbench. His concept uses a camera and projector system working together to detect objects on a workbench,...
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An MRI-Safe 3D Printed Pneumatic Stepper Motor
You will no doubt have seen those videos where MRI machines suck up all sorts of metallic objects with hilariously disastrous results. The magnetic field in one of these machines can easily pull in...
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Dual-Port Memory And Raspberry Pi Team Up For Retro Console Multicart
There’s something powerful about reliving the experience of using a game console from our personal good old days, especially the tactile memories stored up from hundreds of hours handling a chintzy...
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Shining a Light on Hearing Loss
When auditory cells are modified to receive light, do you see sound, or hear light? To some trained gerbils at University Medical Center Göttingen, Germany under the care of [Tobias Moser], the...
View ArticleCircuit VR: An (Almost) Practical Buck Converter
In the last installment of Circuit VR, we walked around a simplified buck converter. The main simplification was using a constant PWM signal. The result is that the output voltage is a fixed fraction...
View ArticleMicro-Organisms Give Up the Volts in this Biological Battery
Battery cells work by chemical reactions, and the fascinating Hybrid Microbial Fuel Cell design by [Josh Starnes] is no different. True, batteries don’t normally contain life, but the process coughs up...
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