PIR & GSM Based Security System using Arduino

As'salam Alaikum 

Hi guise Today I am discussing here very useful project all over the fields that is PIR & GSM Based Security system Using Arduino. 

How the security system works ?  

you can see above block diagram in which following steps of working

Description:

PIR Sensor sense the object of human or animal and give the logic to Arduino

Arduino will take action according to Programming 

Arduino will Send a SMS (Using GSM Module Sim900A) of interruption to honor and ON the buzzer

PIR: Passive Infrared sensor 

when Some body comes in the front of PIR sensor it will give a logic at Data pin for controller (Arduino)  

Internal Structure of PIR Sensor

PIN out and Some other labels about PIR Sensor

Here is a Question That What is the difference between Passive and Active IR ?

Active IR:

In this type of IR sensor it will Transmit the IR first then sense the reflected IR. but Passive IR just sense the IR radiation of any body which radiate IR like human body, animal. 

Coverage (sensing) area:

Coverage sensitivity area with angles of the PIR sensor is shown in the fallowing diagrams.

Active IR Module:

GSM Module: 

Sim900A is most papolar GSM Module. labeled GSM Sim900A is as fallows and PIN Connection with Arduino I have shown in block diagram.

Mostly we will use pin 5vT (Tx) and 5vR (Rx) and connect power supply.

AT commands use to control GSM module.

GSM CONFIGURING:

Two GSM (global mobile communication system) SIM900A we use in our project.

AT commands are used for GSM modules. If anyone wants to transmit the SMS (short message service) through GSM module then he must fallow the following steps.

Connect the GSM module with Arduino UART.

then follow the fallowing steps.

• Send ‘AT’ to GSM module to check is module working or not? If module response ‘OK’ then module ok and is in working mode.
• Then set the text format by sending command ‘AT+CMGF=1’
• Then send command AT+CMGS = ‘xxxxxxxxxxx’ to module (xxxxxxx is mobile SIM number) and module will give the blank window to write message.
• After writing message (any information) press enter and Ctrl +z then SMS will be send and code is as attached.

Buzzer:

In this circuit a buzzer is connected but for loud sound we can use hooter or emergency alert sounder here also.

 Coding file Download here: