Now, we can’t call these LEGO key caps for obvious reasons, but also because they don’t actually work with standard LEGO. But that’s just fine and dandy, because they’re height-adjustable …read more (https://hackaday.com/2026/02/09/keebin-with-kristina-the-one-with-the-height-adjustable-key-caps/)

Converting AC Irrigation Valves To DC Operation
https://hackaday.com/2026/02/09/converting-ac-irrigation-valves-to-dc-operation/

Due to historical engineering decisions made many decades ago, a great many irrigation systems rely on solenoid valves that operate on 24 volts AC. This can be inconvenient if you’re …read more (https://hackaday.com/2026/02/09/converting-ac-irrigation-valves-to-dc-operation/)

Upcycling an iPad into a Touchscreen Display for your PC
https://hackaday.com/2026/02/09/upcycling-an-ipad-into-a-touchscreen-display-for-your-pc/

Although generally iPads tend to keep their resale value, there are a few exceptions, such as when you find yourself burdened with iCloud-locked devices. Instead of tossing these out as …read more (https://hackaday.com/2026/02/09/upcycling-an-ipad-into-a-touchscreen-display-for-your-pc/)

A Working Intercom From Antique Telephones
https://hackaday.com/2026/02/09/a-working-intercom-from-antique-telephones/

Although it can be hard to imagine in today’s semiconductor-powered, digital world, there was electrical technology around before the widespread adoption of the transistor in the latter half of the …read more (https://hackaday.com/2026/02/09/a-working-intercom-from-antique-telephones/)

Why Haven’t Quantum Computers Factored 21 Yet?
https://hackaday.com/2026/02/09/why-havent-quantum-computers-factored-21-yet/

If you are to believe the glossy marketing campaigns about ‘quantum computing’, then we are on the cusp of a computing revolution, yet back in the real world things look …read more (https://hackaday.com/2026/02/09/why-havent-quantum-computers-factored-21-yet/)

IBM Made a Sound Card? Who Knew!
https://hackaday.com/2026/02/09/ibm-made-a-sound-card-who-knew/

Even in a field you think you know intimately, the Internet still has the power to surprise. Sound cards of the 1990s might not be everyone’s specialist subject, but since …read more (https://hackaday.com/2026/02/09/ibm-made-a-sound-card-who-knew/)

Gaming on an Arduino Uno Q in Linux
https://hackaday.com/2026/02/10/gaming-on-an-arduino-uno-q-in-linux/

After Qualcomm’s purchase of Arduino it has left many wondering what market its new Uno Q board is trying to target. Taking the ongoing RAM-pocalypse as inspiration, [Bringus Studios] made …read more (https://hackaday.com/2026/02/10/gaming-on-an-arduino-uno-q-in-linux/)