The Self-Calibrating Auditory
Tone Infrared (SCATIR) Switch is a momentary-contract optical switch with
auditory feedback.
The SCATIR switch works by detecting a beam of reflected pulsed infrared light.
It is suitable for use with a variety of control gestures, such as eye-blink,
eyebrow movement, finger movement, head movement, and facial muscle movement. It
can be activated at a distance so the controlling body part does not need to be
in physical contact with the switch sensor.
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