By | March 27, 2015

After Completing this project successfully it Will help to  prevent use of mobile phones in confidential rooms, examination halls etc. It is also useful for detecting the use of mobile phone for spying. When the Mobile phone detector signal is detected by C3 ic the output of  IC1 becomes high and low alternately according to the frequency of the signal as indicated by LED1 it,s an easy project you can do it …..

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