text: #ifndef _GATTC_DEMO_H
  #define _GATTC_DEMO_H
  
  #include <stdio.h>
  #include "esp_log.h"
  
  #ifdef __cplusplus
  extern "C"
  {
  #endif
  
  
  #include <stdlib.h>
  #include <string.h>
  
  
  /* Attributes State Machine */
  enum
  {
      IDX_SVC,
      IDX_CHAR_A,
      IDX_CHAR_VAL_A,
      IDX_CHAR_CFG_A,
  
      IDX_CHAR_B,
      IDX_CHAR_VAL_B,
  
      IDX_CHAR_C,
      IDX_CHAR_VAL_C,
  
      HRS_IDX_NB,
  };
  
  
  void ble_start(void);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* GATTC_DEMO_H */
  