[Scott] had a simple problem - he was tired of leaning over his work bench to change the volume on his speakers. He desired a system that would readily allow him to switch the speakers on and off from...

If there’s a chemical with a cooler name than “fuming nitric acid,” we can’t think of it. Nearly pure nitric acid is useful stuff, especially if you’re in the business…

[Martin Raynsford] is a prolific project maker, especially when it comes to using a laser cutter. These laser-cut token counters for the board game Tigris & Euphrates demonstrate some clever desig...

In the 1950s, a nuclear-powered future seemed a certainty. The public had not been made aware of the dangers posed by radioactive material, any large-scale accidents involving nuclear reactors had eit...

[PJ Evans] had a ruined game cartridge lying around, just waiting for a project. As Activision’s F-14 Tomcat game for the Atari 2600 console, it seemed ripe for use as a project enclosure of some so...

[Frank Howarth] has a shop most woodworkers would kill for, stuffed with enough tools to equip multiple hackspaces -- four radial-arm saws alone! But while the CNC router in the middle of the shop, la...

If you’ve ever looked at the server logs of a computer that lives full-time on the Internet, you know it’s a rough world out there. You’ll see hundreds of attempts per day to brea…

With so many ways to capture images from paper, do we really need another one? Especially one that takes 15 minutes to capture a 128x128 pixel image? Probably not, but building a single-pixel RGB scan...

[Radu Motisan] Has entered a cool project into the Best Product portion of this year's Hackaday Prize. It's called an Open Source IoT Dosimeter. It has a Geiger tube for detecting radiation levels alo...

In what may be the strangest retrocomputing project we’ve seen lately, you can now access a virtual 6502 via Amazon’s Lambda computing service. We don’t mean there’s a web p…

How quickly would you say yes to being granted the power to control lightning? Ok, since that has hitherto been impossible, what about the lesser power of detecting and tweeting any nearby lightnin…

[Sebastian Foerster] hasn't been at his blog in a while. He and his wife just had twins, so he's been busy standing waiting for formula or milk to warm up. Being a technical kind of guy, he took a loo...

In the summer of 1987, the Atari magazine ST-Log caried a piece entitled "Atari Sets Off Fireworks!", a profile of the use of Atari computers in professional firework displays by Astro Pyrotechnics, a...

What do you get when you mix the disappointment that sometimes accompanies cheap Chinese electronics with the childhood fascination of torturing insects with a magnifying glass on a sunny day? You …

If you want to wirelessly communicate between devices, WiFi and Bluetooth are obvious choices. But there's also the ISM (industrial, scientific, and medical) band that you use. There are inexpensive ...

No doubt many Hackaday readers will have tried their hand at home brewing. It’s easy enough, you can start with a can of hopped malt extract and a bag of sugar in a large bucket in your kitch…

Hackaday Prize entrant [Danie Copnradie] lives in South Africa where wildfires are a major problem. Every year, humans and animals are killed, crops are destroyed, and property is lost. The FireBreakN...

Heart rate sensors available for DIY use employ photoplethysmography which illuminates the skin and measures changes in light absorption. These sensors are cheap, however, the circuitry required to…

Doom is now running on the ESP32. This is some work from [Sprite_tm], and the last we heard about Doom on the ESP32 is that there was a silicon bug or something. Now we're knee deep in the dead on a t...

If you are tired of constantly having to worry about the state of the battery in your mobile phone, then maybe help is at hand courtesy of the University of Washington. They are reporting the first-ev...