text: #ifndef __PIN_DEF_H__
  #define __PIN_DEF_H__
  
  //Seven segment font control pin
  extern int font_pinA, font_pinB, font_pinC, font_pinD;
  //The dot point of the display
  extern int dot_pin;
  //Seven segment digit control pin
  extern int digit_pinA, digit_pinB, digit_pinC;
  //Display work status gate
  extern int display_enable_gate;
  //Button pin
  extern int btn_search_pin, btn_adjust_pin, btn_mode_pin;
  //Bargan music player module
  extern int bargan_tx, bargan_rx;
  
  #endif
  