Compare string of the serial interface using strcmp and Serial.read()

Projects Programming
9 
       if(inSerial[i]=='\r\n'){

SerialRead() only reads one character at a time so inSerial[i] will never contain two characters. You need to test the two consecutive characters to spot them. Something like this

if (inSerial[i] == '\n')
{   
  if (inSerial[i-1] == '\r')
  {
    Check_Protocol(inSerial);
  }
}

Be careful if you try to use use

if (inSerial[i] == '\n' && inSerial[i-1] == '\r')

because on the first iteration inSerial[i-1] will be outside the bounds of the array, but you could use it if you skip the test when i == 0