void SpotmeNFCReaderAPI::nfcTrig(const FB::variant& _data, const FB::variant& _addr)
{
  DEB("in NfcTrig()");

  const char* data = _data.convert_cast<std::string>().c_str();
  int addr = _addr.convert_cast<int>();

  printf("NFCTRIGGER:\t d0=%s, data=%s, addr=%02hhx\n", _data, data, addr);
  printf("NFCTRIGGER:address: %02hhx\n", addr);