The transmitter and receiver circuits of the infrared alarm system shown here have been designed for a ... Finally, the test values indicated in the infrared barrier alarm circuit diagram are average ...

This IR-based light control circuit turns ... by activating an alarm simultaneously. The system consists of a transmitter-receiver pair along with a switching circuit. The transmitter and the receiver ...

This is a project circuit which helps to a person in the driving seat and gives an alarm if there is any ... to know about its circuit diagram and working? Then read the interesting post Car Parking ...