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thank for the correction.i've been checked there is a mistake.i've been changed the scematic.and thank for ur suggestion to replace condenser mic with 2.2k ohm resistor i think that best idea
and even i can get many of part freely
$3 is still too expensive on my country(Indonesia).in my project i can get most of all part cheaply.but thanks for comment
ir remote camera shutter fo...View Instructable »