       DBG Serial.println(value);
       settings.port = value;
     }
-    
   }   
   else if (cmd == 'R') {
     reset();

  pinMode(13,OUTPUT);
  digitalWrite(13, LOW);
  // configuring serial
  Serial.begin(115200);
  // Loading setting 
  eeprom_read_block((void*)&settings, (void*)0, sizeof(settings));
  if (strcmp(settings.magic, MAGIC) != 0) {

 * Supported commands from the serial:
 *  #F<feed>, sets the feed id [default is 0]
 *  #K<key>, sets the COSM authentication key [default is -]
 *  #A<integer>, sets value of the R1 resistor in Kohm [default is 100]
 *  #B<integer>, sets value of the R2 resistor in Kohm [default is 10]
 *  #C<integer>, sets th offset in mV [default is 2500]
 *  #C<integer>, sets th sensitivity in mV [default is 850]
 *  #P<integer>, sets the period between two updates (in ms) [default is 2000]
 *  #R, resest the configuration to the defaults
 * No updates are sent if the feed id is set to 0
