SparkFun microSD Shield

The SparkFun microSD Shield is a perfect solution for those Arduino projects that require more storage space. This shield provides your Arduino with the ability to store large amounts of data, making it ideal for data-logging applications or any other projects that require extensive memory usage.

The SparkFun microSD Shield communicates with microSD cards via an SPI interface. The SCK, DI, and DO pins of the microSD socket are connected to the ATmega168/328's standard SPI pins (digital 11-13), and the CS pin is linked to Arduino's D8 pin. To use one of the many available open source FAT libraries, such as FAT16 or SDFat, the code will need to be modified to reflect the CS pin's location.

In most libraries, the CS pin is assumed to be connected to D10, but this will need to be changed to D8. Furthermore, to ensure the libraries function correctly, pin D8 must be set as an output in the 'setup()' section of your sketch. The shield also features a large prototyping area with a 13x12 grid of 2.54mm pitch PTHs.

The SparkFun microSD Shield comes with a microSD socket, a red power indicator LED, and a reset button. However, it does not include headers. The Arduino R3 Stackable Header Kit is recommended for this purpose.

Documents:

• Schematic
• Eagle Files
• Hookup Guide
• SD Library (FAT16 and FAT32)
• Example Sketch
• GitHub (Design Files & Example Code)