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Free hands input device
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So this idea is still in the rough exploratory phase. What I'd like to have is a way to input text that: * can be used anywhere and doesn't require a surface to work with. * doesn't require radical rearrangement to engage in normal activities (picking things up, etc.) * isn't particularly difficult to learn how to use. Ideas * it sounds like a pair of gloves would would make the best armature * I'd ''like'' a full qwerty keyboard, but finding that many finger positions would be difficult. * with 4 fingers on each hand, it conveniently translates into some nice binary mappings. Switches will probably be the limiting factor for functionality. I've been looking at a couple of different types: * reed switches ** Pro: clear activation, relatively easy to actuate ** Con: made of glass, kind of long and large for a fingertip, not terribly cheap * tactile switches ** Pro: Really cheap, small and discrete, clear activation ** Con: hard to actuate, hard to connect up * roller ball switches ** Pro: clear activation, unique operation ** Con: much too large for fingertips but may be used in back of hand. * Conductive fabric (homemade) switches ** Pro: very discrete, entirely appropriate for gloves ** Con: no activation feedback, potentially questionable/finicky contact. * Electrodes (to measure muscle activity) ** Pro: small, discrete, cheap ** Con: Probably needs conductive gel, very noisy signals/activation If we can connection controls in, we can repurpose a keyboard USB adapter to connect up with the outside world. If we decide to go with a chord-style keyboard, we'd have to come up with a translation mapping to the keyboard-usb inputs. Maybe some reverse charlieplexing or something? [[Category:Sensebridge]]
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