Computers & Mobile

The latest DIY ideas, techniques and tools for digital gadgetry, open code, smart hacks, and more. Processing power to the people!

DIY Capacitive Touch Brush Stylus

DIY Capacitive Touch Brush Stylus

Check out this capacitive touch brush stylus from Instructables user Margarita Benites. Using an old paint brush and some conductive thread, Benites recreates a traditional paint brush stylus that works with modern capacitive touch screen devices such as tablets and handsets for a fraction of the cost of a commercial version.

Analog Tide Computers and the D-Day Invasion

Analog Tide Computers and the D-Day Invasion

Bruce Parker, former Chief Scientist and eleven-year veteran of NOAA’s National Ocean Service, wrote this fascinating article in the September issue of Physics Today. It covers the technical history
of the science of tide prediction leading up to the beautiful mechanical computers developed in the nineteenth and early twentieth centuries to quickly extrapolate recorded tide patterns into useful predictions, and goes on to explain how those computers were critical in planning the Normandy landings.

Android on a 23″ Touchscreen

For some reason we seem to be stuck on the latest handset or tablet and can’t quite seem to break free of the allure of the $500 gewgaw. What happens when you want to read the morning news and aren’t quite satisfied with the handheld screen size? Well, if you’re like Martin Drashkov, you’ll grab some off-the-shelf components and cobble together a proof-of-concept and call it the Android MegaPad.

EEG on a Smartphone

A group from the Technical University of Denmark cobbled together a portable EEG using an Emotiv EPOC neuroheadset, a wireless dongle, and a Nokia N900 smartphone. Using custom software, the unit will render a real-time OpenGL representation of live data from the headset.