A completer Home Security system based on Arduino with multiple sensors to monitor status, pin based entry and locking, GSM shield to give instrusion alerts via SMS.

• It has multiple sensors to monitor status.
• Pin Based entry and locking.
• The number and type of sensors can be modified as per convinience.
• GSM Module used to provide intrusion alerts via SMS.

This contains the extra libraries required for successfull compliation. Extract them and paste them into your arduino's Library folder.

Component	Quantity
Pyroelectric infrared motion sensor	1
4x4 universal 16 key switch keypad	1
Arduino Mega	1
20x4 LCD Display	1
Breadboard	1
M2F Jumper	40
M2M Jumper X40	40
Alarm Buzzer	1
Reed Switch	1
GSM Module	1
LEDs	Optional
10k Rheostat	1

Follow the below given directions to connect the sensors as per the defined Main_Code

Reed Sensors x 3

Reed Sensor 1  ( No Polarity )  --- 22,28
Reed Sensor 2  ( No Polarity )  --- 23,29
Reed Sensor 3  ( No Polarity )  --- 24,30	

PIR Sensor

PIR + --- 5V
PIR - --- GND
PIR OUTPUT --- 31

BUZZER

BUZZER + -- 34
BUZZER + -- GND

Keypad

Row 0 46
Row 1 47
Row 2 48
Row 3 49
Col 0 50 
Col 1 51
Col 2 52
Col 3 53

20x4 LCD Display

LCD RS pin to digital pin 12
LCD Enable pin to digital pin 11
LCD D4 pin to digital pin 5
LCD D5 pin to digital pin 4
LCD D6 pin to digital pin 3
LCD D7 pin to digital pin 2
LCD R/W pin to ground
LCD VSS pin to ground
LCD VCC pin to 5V
10K resistor:
ends to +5V and ground
wiper to LCD VO pin (pin 3)

GSM SHIELD

RX  --- 9
TX  --- 10
GND --- GND

Images folder contains the overall flowchat and the pin out diagrams for the LCD Screen

They contain additional codes for the following purposes. Contents

• code.ino
  • Contains the main code
• Read_Phone_Number_from_EEPROM
  • Contains the code the check the phone number written in EEPROM
• Read_Pin_from_EEPROM
  • Contains the code the check the pin written in EEPROM
• Test_Sensor_Connections
  • Contains the code to check if all sensors are connected properly
• Write_Phone_Number_To_EEPROM
  • Contains the code the write the phone number into the EEPROM
• Write_Pin_To_EEPROM
  • Contains the code the write pin into the EEPROM