Bidirectional Visitor Counter Using 8051 Circuit Diagram PDF
bidirectionAl Visitor counter the entry/exit point of a company but ... Visitor counting is not limited to passage along with block diagram. ... Fig. 2: Circuit of the microcontroller-based visitor counter .
“Automatic bidirectional visitor counter for controlling room light using 8051 microcontroller (AT89S52) ... This symbol is used to indicate a diode in a circuit diagram. The meaning of the symbol is (Anode) (Cathode).