INTRUDER ALARM SYSTEM

COMPONENTS

ARDUINO UNO
16X2 LCD DISPLAY
3X4 KEYPAD
ULRASONIC SENSOR
BUZZER

PIN CONFIGURATION

ARDUINO 	LCD
VCC 		VCC
GND			GND
A5			SCL
A4			SDA


ARDUINO    KEYPAD
ROWS->D6 TO D8
COLUMNS->D2 TO D5

ARDUINO		ULTRASONIC
VCC			VCC
GND			GND
D10			TRIG
D11			ECHO


ARDUINO 	BUZZER
D9			+ve
GND			-ve

OPERATION

The system is meant to detect intruders and sound an alarm. The ultranonic sensor is used to detect for the prescence of an obstacle within the vicinity.When an object is detected the buzzer is turned on to sound an alarm. The alarm will stay on until a de-activation key is entered using the keypad. The LCD screen is used to display the current status of the system.