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Central Security System with pic16f877

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Circuit Operation: PIC16F877 used in the circuit of the B and D as input port is selected. 8 of these units with port B doors, windows and etc.. from places logic 1 or 0 state is evaluated. D port is necessary for system operation or stopping the input of a predetermined password has been supplied. A and C are chosen as output port with port status LEDs and alarm circuit has been. C port to the B port is where you get the warning from the 7 segment LED display is used as the indicator showing. Instead of port 1 LED alarm circuit 1 or 0 is used to determine whether, enter the password warning LED LED 2, 3 the password is correct, and that LED LED LED yandıkd 4 seconds after the system is activated. 4 LED lights up when the system stops enter the password.

Security System Schematic PCB

Central Security System with pic16f877 guvenlik sistemi devresi 150x150 Central Security System with pic16f877 guvenlik sistemi pcb baski devre 150x150

Central Security System with pic16f877 pic assembly source code central-security-system-with-pic16f877.asm

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