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CENTRAL SECURITY SYSTEM WITH PIC16F877

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... Electronics Projects, Central Security System with pic16f877 "microchip projects, microcontroller projects, pic16f877 projects,

Circuit diagram Download files
Tags: #doors#led#security
Muhammad Bilal By Muhammad Bilal
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CategoryHome Automation & Security
PIC modelPIC16F877A
IncludesCircuit diagram · Download files
Reading time~2 min

Summary of CENTRAL SECURITY SYSTEM WITH PIC16F877

This article describes a central security system utilizing the PIC16F877 microcontroller. Port B monitors sensors like doors and windows, while Port D handles password input for system activation or deactivation. Ports A and C serve as outputs, driving LEDs and an alarm circuit. A 7-segment display on Port C provides warnings. The system uses four LEDs to indicate status: LED 1 for alarms, LEDs 2-3 for correct password entry, and LED 4 illuminating after a 4-second delay upon activation or when stopping the system.

Parts used in the Central Security System:

  • PIC16F877 Microcontroller
  • Port B Input Units (Doors/Windows Sensors)
  • Port D Input (Password Keypad)
  • Port A Output (Status Indicators)
  • Port C Output (Alarm Circuit)
  • LEDs (4 units total)
  • 7-Segment LED Display

CENTRAL SECURITY SYSTEM WITH PIC16F877

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

SECURITY SYSTEM SCHEMATIC PCB

Central Security System with pic16f877 pic assembly source code

FILE DOWNLOAD LINK LIST (in TXT format): LINKS-4031.zip

Source: CENTRAL SECURITY SYSTEM WITH PIC16F877

  • How are doors and windows monitored?
    Eight units connected to Port B evaluate the logic 1 or 0 state of places like doors and windows.
  • What is the function of Port D?
    Port D is necessary for system operation or stopping it by supplying a predetermined password.
  • Which ports are chosen as output ports?
    Ports A and C are chosen as output ports for port status LEDs and the alarm circuit.
  • How does the system indicate warnings?
    A 7-segment LED display connected to Port C is used as an indicator showing warnings from Port B.
  • What happens when the password is correct?
    LED 2 and LED 3 light up to indicate that the password is correct.
  • When does LED 4 illuminate?
    LED 4 lights up 4 seconds after the system is activated or when the system stops entering the password.
  • Can the system be stopped via password?
    Yes, a predetermined password supplied to Port D can stop the system operation.
  • What components are used for the alarm circuit?
    The alarm circuit is connected to Port C along with other output indicators.
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Muhammad Bilal

Muhammad Bilal

I am a highly skilled and motivated individual with a Master's degree in Computer Science. I have extensive experience in technical writing and a deep understanding of SEO practices.