Method numSdTracks

src/DFPlayerMini_Fast.cpp:789–792

/ ! @brief Determine the number of tracks accessible via SD card. @return Number of tracks accessible via SD card, -1 if error. */ /

 */
 /**************************************************************************/
int16_t DFPlayerMini_Fast::numSdTracks()
{
	return query(dfplayer::GET_U_FILES);
}