Home automation

[Himanshu]

Hey hi,

I am having problem in recieving and reading messages. There is a variable time lag betweenn message delivery and recieving. I am using simcom sim900A module. All I want is to make this program work. So that it receives message and reads it and acts correspondingly.

Please help me out its urgent.

 

#include <SoftwareSerial.h>

 

SoftwareSerial mySerial(11, 12);

 

 

#define TV 13

 

 

 

int lenth,lenth1,i=0,temp=0;

 

String str="";

String name="";

 

int flag=0;

String ON="ON";

String OFF="OFF";

 

 

 

void setup()

{

   mySerial.begin(9600);

   Serial.begin(9600);

   delay(100); 

 

     pinMode(TV, OUTPUT);

     digitalWrite(TV, HIGH);

 

  delay(1000);

  Serial.println("setup complete");

}

 

void loop()

{

  if(flag==0)

{ Serial.println("loop"); 

  delay(1000);

  mySerial.println("AT+CNMI=2,2,0,0,0"); // AT Command to recieve a live SMS

   

} 

  if(mySerial.available()>0) 

  { flag=1;    

    char inChar = (char)mySerial.read(); 

    str+=inChar;

     lenth++;

    if (inChar == 'n')

    {      temp=1;  

      inChar=0; }   

}

   while(temp!=0)

   {

    i=0;

    

    while(i<lenth)          

    {

     

     if(str=='*')

     {

      i++; 

      while(str!='#')

      {

       name+=str;

       i++;

      }

     }

     i++;

    }

 

 

    check();

 

    delay(200);

 

    temp=0;

 

    name="";

    lenth=0;

    str="";

    flag=0;

    

     mySerial.print("AT+CMGDA="DEL ALL"r");

    delay(100);

   }

   

 

}

 

 

void check()

{

   if(name == ON)

    { Serial.println("got something to on");

      digitalWrite(TV, HIGH);

      delay(1000);

      mySerial.println("AT+CMGF=1");

      delay(1000);

      mySerial.println("AT+CMGS="+918*******4"r");

      delay(1000);

      mySerial.println("TV ON");                         // message to send

      delay(100);

      mySerial.println((char)26);// ASCII code of CTRL+Z

      delay(1000);     // give module time to send SMS

      Serial.println("SMS sent successfully");

          

    }

 

    if (name == OFF)

    { Serial.println("got something to off");

      digitalWrite(TV,LOW);

      delay(1000);

       mySerial.println("AT+CMGF=1");

      delay(1000);

      mySerial.println("AT+CMGS="+918********4"r");

      delay(1000);

      mySerial.println("TV OFF");                         // message to send

      delay(100);

      mySerial.println((char)26);// ASCII code of CTRL+Z

      delay(1000);

      Serial.println("SMS sent successfully");

 

    }

 

  

}

[Vara Ashishkumar]

Hey Himanshu,

Please discribe your application in brief so i will solve your stuff.

[Author]

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