text: /*
   * RS_init
   * Initializes the RS232 communication by opening the Serial port
   */
  
  void RS_init(void);
  
  /* RS_read 
   *  Gets called when signaled that there is data on the Serial line
   *  Reads the first character for type of command and then executes the command
   *  Input is the msp link, to be able to call the invoke_ commands from msp
   */
  void RS_read(msp_link_t *lnk);
  
  /* RS_send
   *  Sends the data from the OBC over the Serial line to the RS232.
   *  Takes buffer array and length of buffer as input arguments.
   */
  void RS_send(unsigned char *sends, int len);
  
  boolean is_daq_on(void);
  