GSM_LanSwitch

/*
 *
 */

char inchar;          // variable to store the incoming character
int Lan1 = 2;         //Lan A switch
int Lan2 = 3;         //Lan A switch
int Lan3 = 4;         //Lan A switch
int Lan4 = 5;         //Lan A switch
int LanA_Red = 12;
int LanA_Green = 11;
int LanB_Red = 10;
int LanB_Green = 9;
void setup()
{

  pinMode(Lan1, OUTPUT);
  pinMode(Lan2, OUTPUT);
  pinMode(Lan3, OUTPUT);
  pinMode(Lan4, OUTPUT);
  pinMode(LanA_Red, OUTPUT);
  pinMode(LanB_Red, OUTPUT);
  pinMode(LanA_Green, OUTPUT);
  pinMode(LanB_Green, OUTPUT);
  digitalWrite(LanA_Green, LOW);
  digitalWrite(LanA_Red, HIGH);
  digitalWrite(LanB_Green, HIGH);
  digitalWrite(LanB_Red, LOW);

  // wake up the GSM shield
  Serial.begin(9600);
  delay(2000);
  Serial.println("AT+CMGF=1"); // set SMS mode to text
  delay(100);
  Serial.println("AT+CNMI=2,2,0,0,0");
  // just to get a notification when SMS arrives &direct out SMS upon receipt to the GSM serial out
  delay(100);
}

void loop()
{
  //If a character comes in from the GSM...
  if (Serial.available() > 0)
  {
    inchar = Serial.read();
    if (inchar == 'L')         // To change the trigger words edit here
    {
      delay(10);
      inchar = Serial.read();
      if (inchar == 'A')
      {
        inchar = Serial.read();
        if (inchar == 'N')
        {
          delay(10);
          inchar = Serial.read();     //SMS LANA
          if (inchar == '1')
          {
            digitalWrite(Lan1, HIGH);
            digitalWrite(Lan2, HIGH);
            digitalWrite(Lan3, HIGH);
            digitalWrite(Lan4, HIGH);
            digitalWrite(LanA_Green, HIGH);
            digitalWrite(LanA_Red, LOW);
            digitalWrite(LanB_Green, LOW);
            digitalWrite(LanB_Red, HIGH);
          }
          else if (inchar == '2')     //SMS LANB
          {
            digitalWrite(Lan1, LOW);
            digitalWrite(Lan2, LOW);
            digitalWrite(Lan3, LOW);
            digitalWrite(Lan4, LOW);
            digitalWrite(LanA_Green, LOW);
            digitalWrite(LanA_Red, HIGH);
            digitalWrite(LanB_Green, HIGH);
            digitalWrite(LanB_Red, LOW);
          }
          delay(100);
          Serial.println("AT+CMGD=1,4"); // delete all SMS
          delay(2000);
        }
      }
    }
  }
}