Hello ! This is fro my electronic engineering project. We've been asked to design a sensor ! I chose a sound operated intruder alarm. See attachment for more info

Question

anonymous · Answer

I've attached a livewire file which contains the circuit I constructed and the jpg are the pages of the book in which I found the circuit.

For the livewire file, I used a signal generator since a microphone isn't available. And as for the relay, I didn't quite understand it's use and all so I put a switch !

anonymous · Answer

The problem is that the circuit I designed in the livewire isn't correct since the buzzer should have stayed on even when the signal generator is back to zero.

koikkara · Answer

@Xx-Misaki-Mei-xX Why not refer the circuit with www.efy.org an international Electronic site for Students..

Thank you