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These pins include input/output ports such as PORTA, PORTB, PORTC, PORTD, PORTE and two Vdd ports for input voltage. The PIC architecture is characterized by its multiple attributes:Separate code and data spaces Harvard architecture. A small number of fixed length instructions. Most instructions are single cycle execution, with one delay cycle on branches and skips. All RAM locations function as registers as both source and destination of math and other functions. A hardware stack for storing return addresses. Data space mapped CPU, port, and peripheral registers. The program counter is also mapped into the data space and writable. There is no distinction between memory space and register space because the RAM serves the job of both memory and registers, and it is usually just referred to as the register file. The keypad:This device is used to enter the password selected by the user and to arm or disarm the alarm by selecting the various profiles installed in the system. As you can see from our project’s picture we used a 4 x 4 keypad, as instructed by Dr.

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For the banking industry, which has gone to considerable lengths to continually upgrade security measures, this presents a demand which is simultaneously economic and ethical.

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This does not mean that the operation can continue indefinitely without these competencies, just that they can be interrupted without completely interrupting the operation.

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>alarm wireless

The Z wave device connects to a remote device such as a laptop or mobile phone.

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One industry researcher notes, "In 2003, there were approximately one million security guards including airport screeners employed in the United States compared to 650,000 U.