Building The DIY HP41C: A Field Report

I have a confession to make. I write about a lot of projects for Hackaday, but there are very few I read about and then go actually build a copy …read more

This Week In Security: GoDaddy, Tardigrade, Monox, And BigSig

After the Thanksgiving break, we have two weeks of news to cover, so hang on for an extra-long entry. First up is GoDaddy, who suffered a breach starting on September …read more

Motorsports Are Turning To Alternative Fuels

As the world grapples with the issue of climate change, there’s a huge pressure to move transport away from carbon-based fuels across the board. Whether it’s turning to electric cars …read more

Ask Hackaday: Why Don’t Automakers Make Their Own EV Batteries?

Sales of electric vehicles continue to climb, topping three million cars worldwide last year. All these electric cars need batteries, of course, which means demand for rechargeable cells is through …read more

What’s The Deal With UEFI?

It seems like there are two camps, the small group of people who care about UEFI and everyone else who doesn’t really notice or care as long as their computer …read more

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Guitar Pickguard Adds MIDI Capabilities

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By Bryan Cockfield | December 6, 2021

For a standard that has been in use since the 1980s, MIDI is still one of the most dominant forces on the musical scene even today. It’s fast, flexible, and …read more
Cardboard Vs. Laser Shootout: A Tale Of Speed And Power Settings

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By Kristina Panos | December 6, 2021

You probably already know that cardboard is versatile, but that goes far beyond the corrugated stuff. There are many types of cardboard out there, some of which you may not …read more
Classic Colorimeter Clone Calibrates Cuvettes’ Contents

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By Robin Kearey | December 6, 2021

For anyone dabbling in home chemistry, having access to accurate measurement equipment can mean the difference between success and failure. But with many instruments expensive and hard to find, what’s …read more
Big Wind Is The Meanest Firefighting Tank You Ever Saw

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By Lewin Day | December 6, 2021

As the Iraqi army retreated at the end of the first Gulf War, they took the term “scorched Earth policy” quite literally. Kuwaiti oil wells were set alight en masse, …read more
Touchscreen-Powered USB Hub Selectively Powers Down Devices

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By Robin Kearey | December 6, 2021

One of the most useful features of the Universal Serial Bus is its hot-plugging capability. You simply plug in your device, use it, and unplug it when you’re done. But …read more
TTL And CMOS Logic ICs: The Building Blocks Of A Revolution

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By Maya Posch | December 6, 2021

When starting a new electronics project today, one of the first things that we tend to do is pick the integrated circuits that make up the core of the design. …read more
Secret Ingredient For 3D-Printed Circuit Traces: Electroplating

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By Donald Papp | December 6, 2021

Conductive filament exists, but it takes more than that to 3D print something like a circuit board. The main issue is that traces made from conductive filament are basically resistors; …read more

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