/*
   Button
   
  Turns on and off a light emitting diode(LED) connected to digital   
  pin 13, when pressing a pushbutton attached to pin 2.  
   
   
  The circuit:
  * LED attached from pin 13 to ground  
  * pushbutton attached to pin 2 from +5V
  * 10K resistor attached to pin 2 from ground
   
  * Note: on most Arduinos there is already an LED on the board
  attached to pin 13.
   
   
  created 2005
  by DojoDave <http://www.0j0.org>
  modified 28 Oct 2010
  by Tom Igoe
   
  This example code is in the public domain.
   
  http://www.arduino.cc/en/Tutorial/Button
  */

// constants won't change. They're used here to  
// set pin numbers:
const int buttonPin = 2;     // the number of the pushbutton pin
const int ledPin =  13;      // the number of the LED pin

// variables will change:
int buttonState = 0;         // variable for reading the pushbutton status

void setup() {
   // initialize the LED pin as an output:
   pinMode(ledPin, OUTPUT);       
   // initialize the pushbutton pin as an input:
   pinMode(buttonPin, INPUT);    
Serial.begin(19200);   
}

void loop(){
   // read the state of the pushbutton value:
   buttonState = digitalRead(buttonPin);

   // check if the pushbutton is pressed.
   // if it is, the buttonState is HIGH:
   if (buttonState == HIGH) {      
     // turn LED on:     
     digitalWrite(ledPin, HIGH);   
    delay(100);  
   Serial.println("AT+CMGF=0"); // Set PDU mode
       delay(3000);
       Serial.println("AT+CMGS=30"); // Number of octets
       delay(3000);
       Serial.print("0011000B919741917119F20008FF10043F04400438043204350442000D000A"); // Sends "Hello" to "00 46707112233"
       delay(500);
       Serial.print(0x1A,BYTE);
       delay(3000);
        
   }  
    
   else {
     // turn LED off:
     digitalWrite(ledPin, LOW);  
   }
}