text: #ifndef tcc_li_fi_h
  #define tcc_li_fi_h
  
  // Comm messages have a fixed size
  #define MESSAGE_SIZE 33
  
  // Board's role defined by hardware
  #define ROLE_PIN 24
  #define SENDER HIGH
  #define RECEIVER LOW
  
  // From pin_comm.ino
  extern void setupPinComm();
  extern void receivePhrase(unsigned char * message, unsigned char messageSize);
  extern void sendPhrase(unsigned char * message, unsigned char messageSize);
  
  // From btn_display.ino
  extern void displayTextMessage(unsigned char * message, unsigned char messageSize);
  extern void translateDisplayMessage(unsigned char * message, unsigned char messageSize);
  extern void enableDisplayControl();
  extern void setupDisplay(boolean showDefaultMessage);
  
  
  // Sender or receiver
  static char boardRole;
  
  // Comm message
  static unsigned char message[MESSAGE_SIZE];
  
  #endif
  