In clapping sensor when the one person is clapping one time with circuit or sensor then current supply is ON and again clapping then current supply is OFF. Now, in mobile when 1 person is calling to circuit cell phone then circuit is ON and again calling the circuit is OFF. The circuit is connected with security sirens or security light in hospital or school or college or any shop. When at this place any problem creates, then the security man calls to circuit cell phone then all are the alert in few seconds.


(EC Engineering Sem-4: Shadab Ansari, Rahil Momin, Aasif Shaikh) 


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