How to Make a Beautiful Floral Keycap Using Resin
https://hackaday.com/2025/06/26/how-to-make-a-beautiful-floral-keycap-using-resin/

Here’s a fun build. Over on their YouTube channel our hacker [Atasoy] shows us how to make a custom floral keyboard keycap using resin. We begin by using an existing …read more (https://hackaday.com/2025/06/26/how-to-make-a-beautiful-floral-keycap-using-resin/)

Announcing the 2025 Hackaday One Hertz Challenge
https://hackaday.com/2025/06/26/announcing-the-2025-hackaday-one-hertz-challenge/

It’s about time! Or maybe it’s about time’s reciprocal: frequency. Whichever way you see it, Hackaday is pleased to announce, just this very second, the 2025 One Hertz Challenge over …read more (https://hackaday.com/2025/06/26/announcing-the-2025-hackaday-one-hertz-challenge/)

Rust Drives a Linux USB Device
https://hackaday.com/2025/06/26/rust-drives-a-linux-usb-device/

In theory, writing a Linux device driver shouldn’t be that hard, but it is harder than it looks. However, using libusb, you can easily deal with USB devices from user …read more (https://hackaday.com/2025/06/26/rust-drives-a-linux-usb-device/)

Linear Solar Chargers for Lithium Capacitors
https://hackaday.com/2025/06/26/linear-solar-chargers-for-lithium-capacitors/

For as versatile and inexpensive as switch-mode power supplies are at all kinds of different tasks, they’re not always the ideal choice for every DC-DC circuit. Although they can do …read more (https://hackaday.com/2025/06/26/linear-solar-chargers-for-lithium-capacitors/)

Optimizing Dust Separation for Extreme Efficiency
https://hackaday.com/2025/06/26/optimizing-dust-separation-for-extreme-efficiency/

[Ruud], the creator of [Capturing Dust], started his latest video with what most of us would consider a solved problem: the dust collection system for his shop already had a …read more (https://hackaday.com/2025/06/26/optimizing-dust-separation-for-extreme-efficiency/)

Pi Networks the Smith Chart Way
https://hackaday.com/2025/06/26/pi-networks-the-smith-chart-way/

[Ralph] is excited about impedance matching, and why not? It is important to match the source and load impedance to get the most power out of a circuit. He’s got …read more (https://hackaday.com/2025/06/26/pi-networks-the-smith-chart-way/)

Making GameCube Keyboard Controller Work with Animal Crossing
https://hackaday.com/2025/06/26/making-gamecube-keyboard-controller-work-with-animal-crossing/