I already found an circuit diagram for this project. A PIR motion sensor connected to the arduino board then a connected relay module and 7805 and the output transducer. I know the connection but I don't know how to make the design work.
I already found an circuit diagram for this project. A PIR motion sensor connected to the arduino board then a connected relay module and 7805 and the output transducer. I know the connection but I don't know how to make the design work.