wireless home security systems

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.

 

 

doorbell camera

home security camera systemsPassive infrared sensors: Detect motion by sensing a sudden change in heat. Dual Tech motion detectors use two different technologies in the same unit: passive infrared and microwave. These devices are designed to avoid false alarms since both technologies must detect motion before setting off the alarm. Photoelectric Sensors: These sensors project a beam of light across a hall or doorway to detect motion and are triggered when a person passing through interrupts the beam. Glass Break Detectors: Usually mounted near windows to detect the specific high frequency sound of glass being shattered. They are usually installed on a wall opposite or adjacent to the protected glass and are effective within about 15′ to 25′.

window security bars

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. They search for important identifications such as your bank statements, passports, and credit cards, essentially whatever they get their hands on.