The circuit:

* SD card attached to SPI bus as follows:

** MOSI - pin 11 on Arduino Uno/Duemilanove/Diecimila

** MISO - pin 12 on Arduino Uno/Duemilanove/Diecimila

** CLK - pin 13 on Arduino Uno/Duemilanove/Diecimila

** CS - depends on your SD card shield or module.

Pin 4 used here for consistency with other Arduino examples

created

28 Mar 2011

by Limor Fried

modified 9 Apr 2012

by Tom Igoe

*/

// include the SD library:

#include <SD.h>

// set up variables using the SD utility library functions:

Sd2Card card;

SdVolume volume;

SdFile root;

// change this to match your SD shield or module;

// Arduino Ethernet shield: pin 4

// Adafruit SD shields and modules: pin 10

// Sparkfun SD shield: pin 8

const int chipSelect = 4;

void setup()

{

// Open serial communications and wait for port to open:

Serial.begin(9600);

while (!Serial) {