DFR0071
DFR0071 Datasheet
SD Module SKU DFR0071
| Part | Datasheet |
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DFR0071 |
DFR0071 (pdf) |
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| SD Module SKU DFR0071 Contents • 1 Introduction • 2 Connection Diagram • 3 Features • 4 Sample Code Introduction The DFRobot SD Card Shield is a simple solution for transferring data to and from a standard SD card. The pinout is directly compatible with Arduino, but can also be used with other microcontrollers. It allows you to add mass storage and data logging to your project. It sits directly on a Arduino and contains a switch to select the flash card slot. Connection Diagram Insert arduino expansion shield V7 onto UNO. Insert SD Module on the arduino expansion shield V7 SD SPI socket: • Break out board for standard SD card and Micro SD TF card • Sits directly on a Arduino • Also be used with other microcontrollers Sample Code Open the sample sketch /* SD card test This example shows how use the utility libraries on which the' SD library is based in order to get info about your SD card. Very useful for testing a card when you're not sure whether its working or n ot. 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 // wait for serial port to connect. Needed for Leonardo only SD card..." ; // On the Ethernet Shield, CS is pin 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 ; // change this to 53 on a mega // we'll use the initialization code from the utility libraries // since we're just testing if the card is working! if !card.init SPI_HALF_SPEED, chipSelect Serial.println "initialization failed. Things to check:" Serial.println "* is a card is inserted?" Serial.println "* Is your wiring correct?" Serial.println "* did you change the chipSelect pin to match your shield or module?" return else Serial.println "Wiring is correct and a card is present." ; // print the type of card type " switch card.type case SD_CARD_TYPE_SD1 Serial.println "SD1" break; case SD_CARD_TYPE_SD2 Serial.println "SD2" break; case SD_CARD_TYPE_SDHC Serial.println "SDHC" break; default Serial.println "Unknown" ; // Now we will try to open the 'volume'/'partition' - it should be FAT16 or FAT32 if !volume.init card Serial.println "Could not find FAT16/FAT32 sure you've f ormatted the card" return; // print the type and size of the first FAT-type volume uint32_t volumesize type is FAT" Serial.println volume.fatType , DEC Serial.println ; volumesize = volume.blocksPerCluster locks volumesize *= volume.clusterCount volumesize *= 512 bytes Serial.print "Volume size bytes " Serial.println volumesize Serial.print "Volume size Kbytes " volumesize /= 1024 Serial.println volumesize Serial.print "Volume size Mbytes " volumesize /= 1024 Serial.println volumesize ; // clusters are collections of b |
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