The BBC recently published an exposé revealing that some Chinese subscription sites charge for access to their network of hundreds of hidden cameras in hotel rooms. Of course, this is …read more (https://hackaday.com/2026/02/09/ask-hackaday-how-do-you-detect-hidden-cameras/)

Living in the (LLM) Past
https://hackaday.com/2026/02/09/living-in-the-llm-past/

In the early days of AI, a common example program was the hexapawn game. This extremely simplified version of a chess program learned to play with your help. When the …read more (https://hackaday.com/2026/02/09/living-in-the-llm-past/)

Keebin’ with Kristina: the One with the Height-Adjustable Key Caps
https://hackaday.com/2026/02/09/keebin-with-kristina-the-one-with-the-height-adjustable-key-caps/

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/