Datasheet
Using the SD Card
The other half of the data logger shield is the SD card. The SD card is how we store long
term data. While the Arduino chip has a permanent EEPROM storage, its only a couple
hundred bytes - tiny compared to a 2 gig SD card. SD cards are so cheap and easy to get,
its an obvious choice for long term storage so we use them for the shield.
The shield kit doesn't come with an SD card but we carry one in the shop that is guaranteed
to work (http://adafru.it/aIH). Pretty much any SD card should work but be aware that some
cheap cards are 'fakes' and can cause headaches.
4GB Blank SD/MicroSD Memory Card
PRODUCT ID: 102
Add mega-storage in a jiffy using this 4 GB micro-SD card. It comes with a SD adapter so
you can use it with any of our shields or adapters! Preformatted to FAT so it works out of
the box...
http://adafru.it/eZR
$7.95
IN STOCK
You'll also need a way to read and write from the SD card. Sometimes you can use your
camera and MP3 player - when its plugged in you will be able to see it as a disk. Or you
may need an SD card reader (http://adafru.it/939). The shield doesnt have the ability to
display the SD card as a 'hard disk' like some MP3 players or games, the Arduino does not
have the hardware for that, so you will need an external reader!
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