/* Listfiles This example shows how print out the files in a directory on a SD card The circuit: * SD card attached to SPI bus as follows: ** MOSI - pin 11 ** MISO - pin 12 ** CLK - pin 13 ** CS - pin 4 created Nov 2010 by David A. Mellis modified 9 Apr 2012 by Tom Igoe modified 2 Feb 2014 by Scott Fitzgerald This example code is in the public domain. */ #include #include File root; void setup() { // Open serial communications and wait for port to open: Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo only } Serial.print("Initializing SD card..."); // On the Ethernet Shield, CS is pin 4. It's set as an output by default. // Note that even if it's not used as the CS pin, the hardware SS pin // (10 on most Arduino boards, 53 on the Mega) must be left as an output // or the SD library functions will not work. pinMode(10, OUTPUT); if (!SD.begin(4)) { Serial.println("initialization failed!"); return; } Serial.println("initialization done."); root = SD.open("/"); printDirectory(root, 0); Serial.println("done!"); } void loop() { // nothing happens after setup finishes. } void printDirectory(File dir, int numTabs) { while(true) { File entry = dir.openNextFile(); if (! entry) { // no more files break; } for (uint8_t i=0; i