Day: February 14, 2025

It’s Valentine’s Day today, and what better way to capture your beloved’s heart than by settling down together and listening to the Hackaday Podcast! Elliot Williams is joined by Jenny List for this week’s roundup of what’s cool in the world of hardware. We start by reminding listeners that Hackaday Europe is but a month […]
Home Depot has at times sold a neat spiral lamp that relies on LEDs to supply its soothing white glow. When [Craig Lindley] saw some modified versions on YouTube he decided he had to build one himself. The result is a charming rainbow lamp that really lights up a room (pardon the pun). [Craig] first […]
There’s a constant tension between governments looking for easier ways to catch criminals, companies looking to actually protect their users’ privacy, and individuals who just want their data to be truly private. The UK government has issued an order that threatens to drastically change this landscape, at least when it comes to Apple’s iCloud backups. […]
Fair warning: watching this hybrid manufacturing method for gear teeth may result in an uncontrollable urge to buy a fiber laser cutter. Hackaday isn’t responsible for any financial difficulties that may result. With that out of the way, this is an interesting look into how traditional machining and desktop manufacturing methods can combine to make […]
Air raid sirens have an important job to do, and have been a critical piece of public safety infrastructure in times of geopolitical turmoil. They sound quite unlike anything else, by virtue of their mechanical method of generating an extremely loud sound output. They’re actually remarkably simple to build yourself, as [MarkMakies] demonstrates. [Mark’s] build […]
As electronics rely more and more on ICs, subtle details about discrete components get lost because we spend less time designing with them. For example, a relay seems like a simple component, but selecting the contact material optimally has a lot of nuance that people often forget. Another case of this is the Miller effect, […]
You can use all kinds of numbers and rating systems to determine whether the air quality in a given room is good, bad, or somewhere in between. Or, like [Makestreme], you could go for a more human visual interface. He’s built a air quality monitor that conveys its information via facial expressions on a small […]
We’ve seen a lot of interest in Meshtastic, the license-free mesh network for small amounts of data over the airwaves. [Ham Radio Rookie] was disappointed with his Meshtastic node’s small and inefficient antennas. So he decided to make what we suspect is the world’s first Meshtastic necktie. We assume the power is low enough that […]
The Nokia 3310 has a reputation of being one of the most indestructible devices ever crafted by humanity. It’s also woefully out of date and only usable in a handful of countries that still maintain a GSM network. It might not be easy to bring it into the 5G era, but you can at least […]
A couple of years ago we were excited to read news of an entirely 3D printed camera, right down to the shutter. We wrote it up back then but sadly the required STL files were not yet available. Now after time away with his family, its creator [Mark Hiltz] is back. The medium-format Pioneer Camera […]