By the end of World War II the world had changed forever, as nuclear weapons were used for the first and – to this date – only time in anger. Although the use of these weapons was barely avoided during the Korean War in the early 1950s, the dawning of the Atomic Age had come […]
Capacitive touch buttons are a great way to turn just about any (non-conductive) surface into a button, but people generally dislike the lack of tactile feedback. [KontinuumLab] apparently agreed and decided to experiment a bit with ways to make such buttons more springy. You can check out the results of those experiments in the video […]
One of the most annoying things about keyboard and mouse input has got to be the need to constantly switch between the two. Ever wish there was a single solution that combined them with elegance? Then you should definitely check out [lemosbor]’s Lapa keyboard, where the right half includes a mouse sensor. Image by [lemosbor] […]
Ham radio enthusiasts, people looking to borrow their neighbors’ WiFi, and those interested in decoding signals from things like weather satellites will often grab an old satellite TV antenna and repurpose it. Customers have been leaving these services for years, so they’re pretty widely available. But for handheld operation, these metal dishes can get quite […]
[Lonyelon] wanted to build an anniversary gift for his girlfriend. He decided to say it with e-Paper, a wise choice given its persistence and longevity. The project is an anniversary calendar. It displays a counter of the total time the couple has been together, measured in years, months, days, and hours—so it’s remarkably precise. [Lonyelon] […]
Multiplication on a common microcontroller is easy. But division is much more difficult. Even with hardware assistance, a 32-bit division on a modern 64-bit x86 CPU can run between 9 and 15 cycles. Doing array processing with SIMD (single instruction multiple data) instructions like AVX or NEON often don’t offer division at all (although the […]
Many of us grew up with dreams of piloting a forklift one day. Sadly, most warehouses take a dim view of horseplay with these machines, so few of us get to live out those fantasies. Playing with this desk-sized RC model from [ProfessorBoots] is probably a safer way to get those kicks instead. You can […]