Talk:Free hands input device
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I'm not really an electronics person, but could you use those little hall effect sensors mounted on the back on of each of your fingers in addition to a weak magnet mounted on the back of thumb to detect when a user brings their thumb and fingers together to signify input? The input system I'm thinking about (and trying to learn the gestures for without an actual input device) would support a maximum of ~49 different inputs. 7 gestures for the right hand (thumb + fingers 1, 2, 3, 4, 1&2, 2&3, or 3&4) * 4 for the left (thumbs + fingers 1, 2, 3, or 4) = 28 inputs (English alphabet + space and period).
Including (adjacent) two finger gestures on the left hand would give a total of 49 combinations. You could also do three and four finger gestures, or use non-adjacent fingers, but these are harder to do and take more time. I have a little Python script which translates strings into lists of finger positions (it isn't in alphabetical order as I thought it made sense to put the most frequently used letters on the easiest gestures). --Meyermagic 14:15, 19 August 2009 (PDT)