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16-03-2016, 11:40 AM

i would like to the entire function of an eye blink sensor and its working in detail.
and i would also like to know how to use it and interface it with microcontroller to make safe driving system for car.

**dhanabhagya** · 22-03-2016, 02:32 PM

ir sensor working principle for eye blink

INTRODUCTION

The eye-blink sensor works by illuminating the eye and/or eyelid area with infrared light, then monitoring the changes in the reflected light using a phototransistor and differentiator circuit. The exact functionality depends greatly on the positioning and aiming of the emitter and detector with respect to the eye.

FEATUTRES

EYE BLINK indication by LEDInstant output digital signal for directlyConnecting to microcontrollerCompact SizeWorking Voltage +5V DC

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