text: #pragma once
  
  #include "mgos.h"
  
  void crc15_init();
  uint16_t crc15_calculate(uint8_t* buffer, int byteCount);
  
  void add_pec(uint8_t *buffer, size_t byteCount);
  bool validate_pec(uint8_t *buffer, size_t byteCount);
  