Visualizers used to be very much in vogue, something you’d gasp in at amazement when you’d fire up Winamp or Windows Media Player. They’re largely absent from our modern lives, …read more (https://hackaday.com/2025/12/27/building-a-wall-mounted-sound-visualizer/)

Print Your Next LED Bezel
https://hackaday.com/2025/12/27/print-your-next-led-bezel/

LED bezels (also known as LED panel-mount holders) are great, so how about 3D printing the next ones you need? Sure, they’re inexpensive to purchase and not exactly uncommon. But …read more (https://hackaday.com/2025/12/27/print-your-next-led-bezel/)

Active Ideal Full Bridge Rectifier using TEA2208T
https://hackaday.com/2025/12/27/active-ideal-full-bridge-rectifier-using-tea2208t/

Everyone loves a full-wave bridge rectifier, but there’s no denying that they aren’t 100% efficient due to the diode voltage drop. Which isn’t to say that with some effort we …read more (https://hackaday.com/2025/12/27/active-ideal-full-bridge-rectifier-using-tea2208t/)

Playing DOOM on a Receipt Printer
https://hackaday.com/2025/12/27/playing-doom-on-a-receipt-printer/

Gaming is a wonderful thing. Unfortunately for many of us, work takes up our valuable time, which should be allocated to our gaming. What if there was a better way? …read more (https://hackaday.com/2025/12/27/playing-doom-on-a-receipt-printer/)

Building Beautiful LED Lanterns With Black LED Acrylic
https://hackaday.com/2025/12/27/building-beautiful-led-lanterns-with-black-led-acrylic/

[Geeksmithing] and [When Geeks Craft] recently came together for a glowing collaboration. They wanted to build ever more attractive lanterns for a local parade event. They recently discovered a fantastic …read more (https://hackaday.com/2025/12/27/building-beautiful-led-lanterns-with-black-led-acrylic/)

Seeing Sound for Under $200
https://hackaday.com/2025/12/27/seeing-sound-for-under-200/

There are five general senses: touch for feels, taste for food, smell for avoiding trash, hearing for sounds, and, of course, eyesight for visualizing the very waves making up that …read more (https://hackaday.com/2025/12/27/seeing-sound-for-under-200/)

What to do When Your Foucault Pendulum Stops Swinging
https://hackaday.com/2025/12/27/what-to-do-when-your-foucault-pendulum-stops-swinging/

At the Houston Museum of Natural Science they recently made a disturbing discovery: their Foucault pendulum had stopped swinging for the first time since its installation in the 1970s. (Video, …read more (https://hackaday.com/2025/12/27/what-to-do-when-your-foucault-pendulum-stops-swinging/)