I have made a IR detection of hands in a close space (cube of 10inch). I
think it is more difficult than in an open space, because of the
reflections.

As emitter, an IR LED, 38khz modulated with PWM of an PIC16LF872, combined
with an output who delivers data at 600 bauds

As receiver, a TSOP1838SS3V, who demodulated and has a auto gain control,
from VISCHAY

It works fine, once i have respect the signal gap time of the photomodule.

If your power is 5V: use 2 serial led with one resistor to enhance your
perf..

ask me for the datasheet of the photomodule...



____________________
Samuel BOUQUET
Sociiti INOV'TRONIK
8/10 rue Emile Sehet
ZA des chataigniers
95150 Taverny
____________________
Tel: (33) 1 39 95 29 50
Fax: (33) 1 39 95 74 10
s.bouquet@inovtronik.com

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