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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. We started off our project by coding the Keypad, then LCD and the final touch was the sensor. We also added two types of buzzers: one to sound the alarm and the other as a key tone buzzer. The final result turned out to be the following:Figure3. Our Home Alarm SystemMaterials Used: Cost:PIC16F877A 7$4X4 Keypad 2$JHD 162A LCD 6$6V Alarm Buzzer 0. 5$Key tone Buzzer 0. 5$4 MEGA Crystal Oscillator 5$3 Flashing LEDs 0. 1$18 Pico Capacitors 1$Magnetic Sensor 2$Input VoltageWires 0. 1$Breadboard 3$Total Cost: 27. 3$Process of Building:First of all the PIC:PIC is a family of Harvard architecture microcontrollers. The name PIC refers to “Peripheral Interface Controller”.

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The Ethics of Paying Civilians to Enter Harm's wayThe American military hired private contractors to pull…… Ethical Considerations for the Use of Technology to Meet Selected Homeland Security ObjectivesIntroductionThe Digital Age has transformed the way the world works for better or worse.

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After you’ve confirmed contact names and email addresses, implement an email marketing campaign to reach these prospects, and communicate the differences that make your security company superior to the one that your prospects are using.

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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.

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5$Key tone Buzzer 0.