 
 // Chip select for SD card on the SmartMatrix Shield or Photon
 #if defined (ARDUINO)
+//#define SD_CS BUILTIN_SDCARD
 #define SD_CS 15
 #elif defined (SPARK)
 #define SD_CS SS

 *  - Note for 128x32 and 64x64 displays with Teensy 3.2 - need to reduce RAM:
 *    set kRefreshDepth=24 and kDmaBufferRows=2 or set USB Type: "None" in Arduino,
 *    decrease refreshRate in setup() to 90 or lower to get good an accurate GIF frame rate
 */

#if defined (ARDUINO)

#include "SmartMatrix3_Photon_Apa102/SmartMatrix3_Photon_Apa102.h"
#endif

#include <SD.h>
#include "GifDecoder.h"
#include "FilenameFunctions.h"

