When it comes to electromagnetic waves, humans can really only directly perceive a very small part of the overall spectrum, which we call “visible light.” [rootkid] recently built an art …read more (https://hackaday.com/2026/01/29/buildling-a-light-that-reacts-to-radio-waves/)

These Ultra-Cute, Handsfree Walkie-Talkies Are Built For Cycling
https://hackaday.com/2026/01/29/these-ultra-cute-handsfree-walkie-talkies-are-built-for-cycling/

Walkie-talkies are great fun, and [RealCorebb]’s bbTalkie project takes the concept a step further by adding some extremely cool features to make a highly refined, self-contained ESP32-based communicator. bbTalkie completely …read more (https://hackaday.com/2026/01/29/these-ultra-cute-handsfree-walkie-talkies-are-built-for-cycling/)

Solar Supercapacitor Lamp Probably Won’t Get You Saved At Sea
https://hackaday.com/2026/01/29/solar-supercapacitor-lamp-probably-wont-get-you-saved-at-sea/

Most solar lights are cheap garbage that exist just to put more microplastics into the environment as they degrade in short order. [Jeremy Cook] built his own solar light, however, …read more (https://hackaday.com/2026/01/29/solar-supercapacitor-lamp-probably-wont-get-you-saved-at-sea/)

Rare-Earth-Free Magnets With High Entropy Borides
https://hackaday.com/2026/01/29/rare-earth-free-magnets-with-high-entropy-borides/

Although most of us simultaneously accept the premise that magnets are quite literally everywhere and that few people know how they work, a major problem with magnets today is that …read more (https://hackaday.com/2026/01/29/rare-earth-free-magnets-with-high-entropy-borides/)

Lazarustorm Lets a PiStorm Live Outside Your Old Amiga
https://hackaday.com/2026/01/29/lazarustorm-lets-a-pistorm-live-outside-your-old-amiga/

The PiStorm is nothing new; if you’re familiar with the retrocomputer scene, you’ve probably heard of it. By replacing the 68k processor in an old Amiga (or some models of …read more (https://hackaday.com/2026/01/29/lazarustorm-lets-a-pistorm-live-outside-your-old-amiga/)

Companion MIDI Pedal Helps Roland Groovebox Along
https://hackaday.com/2026/01/30/companion-midi-pedal-helps-roland-groovebox-along/

The Roland SP-404 Mk2 is a popular groovebox that can deliver a great beat if you know how to use it. If you’re seeking greater control than is available out …read more (https://hackaday.com/2026/01/30/companion-midi-pedal-helps-roland-groovebox-along/)

Comprehensive Power Management for the Raspberry Pi
https://hackaday.com/2026/01/30/comprehensive-power-management-for-the-raspberry-pi/

The Raspberry Pi has been a revolutionary computer in the maker space, providing a full Linux environment, GUI, and tons of GPIO and other interfacing protocols at a considerably low …read more (https://hackaday.com/2026/01/30/comprehensive-power-management-for-the-raspberry-pi/)

Building Natural Seawalls To Fight Off The Rising Tide
https://hackaday.com/2026/01/30/building-natural-seawalls-to-fight-off-the-rising-tide/