GSM

Two door and send SMS that door is open.    

 void setup()

{

Serial.begin(9600); //Initialise serial to communicate with GSM Modem

}

void loop()

{

delay(10000); //Give enough time for GSM to register on Network

SendSMS(); //Send one SMS

while(1); //Wait forever

}

void SendSMS()

{

Serial.println("AT+CMGF=1"); //To send SMS in Text Mode

delay(1000);

Serial.println("AT+CMGS=\"+9198xxxxxxxx\"\r"); //Change to destination phone number

delay(1000);

Serial.println("Hello from GSM Modem!");//the content of the message

delay(200);

Serial.println((char)26); //the stopping character Ctrl+Z

delay(1000);

}

Two door and send SMS that door is open.    

 void setup()

{

Serial.begin(9600); //Initialise serial to communicate with GSM Modem

pinMode(8,INPUT);

digitalWrite(8,HIGH);

pinMode(9,INPUT);

digitalWrite(9,HIGH);

}

void loop()

{

delay(10000); //Give enough time for GSM to register on Network

if(!digitalRead(8))

{
    SendSMS(0);

while(!digitalRead(8));

}

if(!digitalRead(9))

{
    SendSMS(1);

while(!digitalRead(9));

}

while(1); //Wait forever

}

void SendSMS(int st)

{

Serial.println("AT+CMGF=1"); //To send SMS in Text Mode

delay(1000);

Serial.println("AT+CMGS=\"+9198xxxxxxxx\"\r"); //Change to destination phone number

delay(1000);

if(st==0)

{

Serial.println("Hello from door1!");//the content of the message

}

if(st==1)

{

Serial.println("Hello from door2!");//the content of the message

}

delay(200);

Serial.println((char)26); //the stopping character Ctrl+Z

delay(1000);

}

Count the number of person pass from the door using GSM.

#include<LiquidCrystal.h>

LiquidCrystal lcd(12,11,5,4,3,2);

int c;

 void setup()

{

lcd.begin(16,2);

Serial.begin(9600); //Initialise serial to communicate with GSM Modem

pinMode(8,INPUT);

digitalWrite(8,HIGH);

pinMode(9,INPUT);

digitalWrite(9,HIGH);

c=0;

}

void loop()

{

delay(10000); //Give enough time for GSM to register on Network

if(!digitalRead(8))

{
    SendSMS(0);

c++;

lcd.setCursor(0,1);

lcd.print(c);

while(!digitalRead(8));

}

if(!digitalRead(9))

{
    SendSMS(1);

c--;

lcd.setCursor(0,1);

lcd.print(c);

while(!digitalRead(9));

}

while(1); //Wait forever

}

void SendSMS(int st)

{

Serial.println("AT+CMGF=1"); //To send SMS in Text Mode

delay(1000);

Serial.println("AT+CMGS=\"+9198xxxxxxxx\"\r"); //Change to destination phone number

delay(1000);

if(st==0)

{

Serial.println("Hello from door1!");//the content of the message

}

if(st==1)

{

Serial.println("Hello from door2!");//the content of the message

}

delay(200);

Serial.println((char)26); //the stopping character Ctrl+Z

delay(1000);

}