Hacks

HOWTO: Make a roll-up keyboard

Making a flexible, “roll-up” keyboard from a standard USB keyboard is a lot easier than I would have expected. Rolling your own is about as simple as removing the membrane from inside an existing keyboard and gluing key labels in the appropriate places. Aside from having a portable full-size keyboard, and the additional geek-cred that […]

Accelerometer motion analysis

There’s an article over on the WiiLi Wiki that goes into great detail describing how to translate 3D accelerometer measurements into an estimation of the position, rotation, and velocity of a device like the Wiimote. By making a few assumptions—people’s arms have a limited range of motion, most Wii play doesn’t take place in moving […]