Aquarium Automation

#include <SoftwareSerial.h>
char inchar; // Will hold the incoming character from the GSM shield
#include <OneWire.h>
SoftwareSerial SIM900(7, 8);
OneWire  ds(2);  // on pin 2 (a 4.7K resistor is necessary)

int led1 = 10;
int led2 = 11;
int led3 = 12;
int led4 = 13;

void setup()
{
  Serial.begin(19200);
  // set up the digital pins to control
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
  digitalWrite(led1, LOW);
  digitalWrite(led2, LOW);
  digitalWrite(led3, LOW);
  digitalWrite(led4, LOW);
  
  SIM900.begin(19200);
  SIM900power();  
  delay(20000);  // give time to log on to network. 
  
  SIM900.print("AT+CMGF=1\r");  // set SMS mode to text
  delay(100);
  SIM900.print("AT+CNMI=2,2,0,0,0\r"); 
  // blurt out contents of new SMS upon receipt to the GSM shield's serial out
  delay(100);
  Serial.println("Ready...");
}
 
void SIM900power()
// software equivalent of pressing the GSM shield "power" button
{
  digitalWrite(9, HIGH);
  delay(1000);
  digitalWrite(9, LOW);
  delay(7000);
}
 
void sendSMS()
{
  SIM900.print("AT+CMGF=1\r");                                                        // AT command to send SMS message
  delay(100);
  SIM900.println("AT + CMGS = \"+923032810399\"");                                     // recipient's mobile number, in international format
  delay(100);
  SIM900.println(" The Aquarium Automation is ON now. Thanks to Talal Khokhar, Usama Bin Najam & Ghulam Rasool.");        // message to send
  delay(100);
  SIM900.println((char)26);                       // End AT command with a ^Z, ASCII code 26
  delay(100); 
  SIM900.println();
  delay(5000);                                     // give module time to send SMS
  SIM900power();                                   // turn off module
}

 
void loop()
{

  //If a character comes in from the cellular module...
  if(SIM900.available() >0)
  {
    inchar=SIM900.read(); 
    if (inchar=='#')
    {
      delay(10);

      inchar=SIM900.read(); 
      if (inchar=='a')
      {
        delay(10);
        inchar=SIM900.read();
        if (inchar=='0')
        {
          digitalWrite(led1, LOW);
        } 
        else if (inchar=='1')
        {
          digitalWrite(led1, HIGH);
        }
        delay(10);
        inchar=SIM900.read(); 
        if (inchar=='b')
        {
          inchar=SIM900.read();
          if (inchar=='0')
          {
            digitalWrite(led2, LOW);
          } 
          else if (inchar=='1')
          {
            digitalWrite(led2, HIGH);
          }
          delay(10);
          inchar=SIM900.read(); 
          if (inchar=='c')
          {
            inchar=SIM900.read();
            if (inchar=='0')
            {
              digitalWrite(led3, LOW);
            } 
            else if (inchar=='1')
            {
              digitalWrite(led3, HIGH);
            }
            delay(10);
            inchar=SIM900.read(); 
            if (inchar=='d')
            {
              delay(10);
              inchar=SIM900.read();
              if (inchar=='0')
              {
                digitalWrite(led4, LOW);
              } 
              else if (inchar=='1')
              {
                digitalWrite(led4, HIGH);
              }
              delay(10);
            }
          }
          SIM900.println("AT+CMGD=1,4"); // delete all SMS
        }
      }
    }
  }
  
 
  byte i;
  byte present = 0;
  byte type_s;
  byte data[12];
  byte addr[8];
  float celsius, fahrenheit;
  
   if ( !ds.search(addr)) {
  SIM900.print("AT+CMGF=1\r");                                                        // AT command to send SMS message
  delay(100);
  SIM900.println("AT + CMGS = \"+923032810399\"");                                     // recipient's mobile number, in international format
  delay(100);
  SIM900.println(" Thank You ");        // message to send
  delay(100);
  SIM900.println((char)26);                       // End AT command with a ^Z, ASCII code 26
  delay(100); 
  SIM900.println();
  delay(5000);                                     // give module time to send SMS
  SIM900power();    // turn off module
  
   ds.reset_search();
    delay(10000);
    return;
}
  switch (addr[0]) {
    case 0x28:
      SIM900.print("AT+CMGF=1\r");                                                        // AT command to send SMS message
  delay(100);
  SIM900.println("AT + CMGS = \"+923032810399\"");                                     // recipient's mobile number, in international format
  delay(100);
  SIM900.println(" The Water Temperature Report by TALAL, USAMA, GHULAM");        // message to send
  delay(100);
  SIM900.println((char)26);                       // End AT command with a ^Z, ASCII code 26
  delay(100); 
  SIM900.println();
  delay(5000);                                     // give module time to send SMS
  SIM900power();    // turn off mod
      type_s = 0;
      break;
       return;
  }
ds.reset();
  ds.select(addr);
  ds.write(0x44);        // start conversion, use ds.write(0x44,1) with parasite power on at the end

  delay(1000);     // maybe 750ms is enough, maybe not
  // we might do a ds.depower() here, but the reset will take care of it.

  present = ds.reset();
  ds.select(addr);    
  ds.write(0xBE);         // Read Scratchpad

 
  for ( i = 0; i < 9; i++) {           // we need 9 bytes
    data[i] = ds.read();   
  }
   int16_t raw = (data[1] << 8) | data[0];
  if (type_s) {
    raw = raw << 3; // 9 bit resolution default
    if (data[7] == 0x10) {
      // "count remain" gives full 12 bit resolution
      raw = (raw & 0xFFF0) + 12 - data[6];
    }
  } else {
    byte cfg = (data[4] & 0x60);
    // at lower res, the low bits are undefined, so let's zero them
    if (cfg == 0x00) raw = raw & ~7;  // 9 bit resolution, 93.75 ms
    else if (cfg == 0x20) raw = raw & ~3; // 10 bit res, 187.5 ms
    else if (cfg == 0x40) raw = raw & ~1; // 11 bit res, 375 ms
    //// default is 12 bit resolution, 750 ms conversion time
  }
  celsius = (float)raw / 16.0;
  fahrenheit = celsius * 1.8 + 32.0;
  
 SIM900.print("AT+CMGF=1\r");                                                        // AT command to send SMS message
  delay(100);
  SIM900.println("AT + CMGS = \"+923032810399\"");                                     // recipient's mobile number, in international format
  delay(100);
  SIM900.println(" Temp= ");  // message to send
  SIM900.println(celsius);
   SIM900.println(" Cel, ");  // message to send
  SIM900.println(fahrenheit);
  SIM900.println(" Fah");
  delay(100);
  SIM900.println((char)26);                       // End AT command with a ^Z, ASCII code 26
  delay(100); 
  SIM900.println();
  delay(10000);                                     // give module time to send SMS
  SIM900power();   
  
 }