USB Interfaced 1-Hand Wearable Keyboard

The project illustrates a wearable keyboard that is ported to AT90USBKEY demo board which uses USB interface to connect to a PC.

During operation, the typing fingers are relieved of any role in supporting the keyboard. This is done with a frame held between the thumb and palm rather than using a wrist trap. The keys are placed in such a way that the typing fingers will remain near their relaxed positions. Two keys are assigned per finger wherein the distal phalanx can press one and the middle phalanx for the other. There are some shortcomings in this prototype since there is no miniature joystick and not quickly adjustable.

With a few keys that are pressed in groups, the keyboard is able to produce all usual characters. It contains a working PS/2 prototype. The key-side of the intact king pin-style prototype contains keys that are bits of vinyl tubing glued crosswise on the roller arms of basic switches. At the top is the visible king pin nut along with the top brace pad dangling from hook. The wooden piece proximal palm pad extends right at the bottom together with the crescent-shaped distal palm.

Rest of the project