Sound! It’s a thing you hear, moreso than something you see with your eyes. And yet, it is possible to visualize sound with various techniques. [PlasmatronX] demonstrates this well, using …read more (https://hackaday.com/2026/03/12/mapping-the-sound-field-of-an-acoustic-levitator/)

Building a Robot Partner to Play Air Hockey With
https://hackaday.com/2026/03/12/building-a-robot-partner-to-play-air-hockey-with/

Air hockey is one of those sports that’s both incredibly fun, but also incredibly frustrating as playing it by yourself is a rather lonely and unfulfilling experience. This is where …read more (https://hackaday.com/2026/03/12/building-a-robot-partner-to-play-air-hockey-with/)

Replicating a Nuclear Event Detector For Fun and Probably Not Profit
https://hackaday.com/2026/03/12/replicating-a-nuclear-event-detector-for-fun-and-probably-not-profit/

Last year, we brought you a story about the BhangmeterV2, an internet-of-things nuclear war monitor. With a cold-war-era HSN-1000 nuclear event detector at its heart, it had one job: announce …read more (https://hackaday.com/2026/03/12/replicating-a-nuclear-event-detector-for-fun-and-probably-not-profit/)

Nintendo’s Family BASIC Keyboard Gets USB Upgrade
https://hackaday.com/2026/03/12/nintendos-family-basic-keyboard-gets-usb-upgrade/

America knew it as the Nintendo Entertainment System, but in Japan, it was the Family Computer (Famicom). It was more than just a home console—it was intended to actually do …read more (https://hackaday.com/2026/03/12/nintendos-family-basic-keyboard-gets-usb-upgrade/)