Facebook is developing a new input device for AR glasses: a wristband that lets you interact with virtual reality by moving your fingers. The system uses electromyography (EMG) to convert nerve signals passing through the wrist into digital commands. Facebook says that these signals are so clear that EMG can understand finger motions of just a millimeter: That means input can be effortless. Ultimately, it may even be possible to sense just the intention to move a finger. The devices also use contextualized AI to dynamically adapt to you and your environment. [Read: This haptic device uses strings to let you ‘feel’ objects in…
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