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Occupancy Detector

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Praveen.kumar26

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Hi Everyone,
I am working on occupancy detector using PIR sensor.:!:
Can we increase the detection range of PIR sensor ?
Please help me out....!! How to increase it ?
 

help me wireless fire alarm to send and receive ( to GSM Module)
hello
I'm mohammed ( student )
please I wanted to help me
I want to build circuit of wireless fire alarm to send and receive (control panel or to gsm module Interfacing)
can you reply by email
ma7amed_be7airy@yahoo.com

very thank you
 

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