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When the alarm system is installed, each sensor is registered with the control panel either through wires or wirelessly. The control panel also interfaces with keypads and other input devices used by the home owner to control the system. The control center keeps track of the status of the sensors and reports activity through LCD displays and other output devices. Moreover, when activity takes places, such as the opening of a window, the sensors report the activity to the control center and the center registers that a disturbance has occurred. In managed alarm systems, the control panel also checks the sensors to verify that they are still operational; if a sensor fails to reply, the center alerts the home owner of an out of order sensor. If the home owner activates the alarm system and the control center registers activity in the home, a signal is sent by the control to a buzzer, flashing lights or any other audiovisual alarm element. Our design for a functional keypad was the usage of an alternation of ports between inputs and outputs which is done by using the TRIS function. We started off by setting the first four ports of PORTB as the inputs and the latter four ports as the outputs. The first four ports are connected to the columns meanwhile the last four are connected to the rows. Moreover, as a justification for this reasoning is the fact that it is required to scan the columns for the pressed key and then scan the rows and the results will be decoded in a decoder telling us which button of the keypad was pressed. The main functionality of the keypad as mentioned earlier is to set the code.



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security home camerasIt is also used to alert a user of a possible danger. It focuses on all of the accessible entry points of the house, so that the alarm will sound as soon as the intruder enters. In addition, a home alarm system is necessary not just for the material possessions in your home but also increases protection on the family. Furthermore, a burglar may want to break the door of your house while barging in. You also might have to cope with broken windows, smashed furniture and other general damage. Making up for this damage will be expensive not just time wise but also requires great deal of effort since burglars these days are interested in expensive items.

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The residence owner can take the following safety measures such as: burglars search for homes that appear to be vacant; robbers want to waste no more than sixty seconds breaking into a home. Points of Entry of Burglars:Figure2 . Burglary Facts and Statistics 2008. Retrieved from ne survey in Pennsylvania showed that:81 percent of residential intrusions occur through the first floor. 34 percent of burglars entered through the front door;23 percent through a first floor window;22 percent through the back door;9 percent through the garage;4 percent entered through a basement;4 percent through an unlocked entrance;2 percent through a storage area;2 percent entered anywhere on the second floor.