SEND SMS USING ARDUINO AND GSM

                                 


                                   
                                       fig1; proteus simulation
             

PROGRAM

Send message when a button is pressed

const int SENSORPIN = 2;

 void SendMessage()
{
  Serial.print("AT+CMGF=1");
  Serial.write(0x0D);
  delay(2000);
  Serial.print("AT+CMGS=");
  Serial.write(0x22);
  Serial.print("974668xxxx");
  Serial.write(0x22);
  Serial.write(0x0D);
  delay(2000);

  Serial.print(" POLLUTION DETECTED ");
  Serial.write(0x1A);
  delay(3000);

}

int  SENSORSTATE = 0;
void setup() {
  Serial.begin(9600);    // Setting the baud rate of Serial Monitor (Arduino)
  delay(100);


pinMode(SENSORSTATE, INPUT);
}

void loop() {
  SENSORSTATE = digitalRead(SENSORPIN);
  if (SENSORSTATE == HIGH) {

while(digitalRead(SENSORPIN)== HIGH);


         SendMessage();
}
}

PROGRAM

Send message to two different NO, when a button is pressed


const int SENSORPIN = 5;
void SendSMS()
{
  Serial.print("AT+CMGF=1");
  Serial.write(0x0D);
  delay(2000);
  Serial.print("AT+CMGS=");
  Serial.write(0x22);
  Serial.print("90483163xx");
  Serial.write(0x22);
  Serial.write(0x0D);
  delay(2000);

  Serial.print(" WARNING! ");
   Serial.print("POLLUTION DETECTED");
  Serial.write(0x1A);
  delay(3000);

}

 void SendMessage()

{
  Serial.print("AT+CMGF=1");
  Serial.write(0x0D);
  delay(2000);
  Serial.print("AT+CMGS=");
  Serial.write(0x22);
  Serial.print("97466831xx");
  Serial.write(0x22);
  Serial.write(0x0D);
  delay(2000);

  Serial.print(" POLLUTION DETECTED ");
  Serial.write(0x1A);
  delay(3000);

}

int  SENSORSTATE = 0;

void setup() {
     Serial.begin(9600);    // Setting the baud rate of Serial Monitor (Arduino)
     delay(100);
     pinMode(SENSORSTATE, INPUT);
}

void loop() {
  SENSORSTATE = digitalRead(SENSORPIN);
  if (SENSORSTATE == HIGH)
{

while(digitalRead(SENSORPIN)== HIGH);


         SendMessage();
         SendSMS();
}

}