system smoke detector

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.

Chapter II:Our Home Alarm SystemOur Home Alarm System:Our project’s main concern was to build a Home Alarm System using a PIC microcontroller.

propane leak detector

A classic example is…… The foundation of the current private security systems may be credited to Alan Pinkerton.

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