Digital Window Sticker (Arduino Controlled)

Step 4 Assemble the SD-MMC Card Breakout Board

Simply solder a set of header pins to the SD-MMC card breakout board.

Alternatives:

• Uses wires to connect the SD-MMC card breakout board directly to the printed circuit board in the next step.  Doing so will give you flexibility with where the SD card socket is located in your enclosure.
• Solder a bare SD card socket to your selected printed circuit board as part of the next step.

Notes:
Only the following pins are used:

• CS (for SPI access to the SD Card)
• DI (data input for SPI access to the SD Card)
• VCC is the 3.3v power source for the card
• GND is the common ground
• DO is the data output, which can be connected directly to pin 12 of the Arduino
• WP is used to detect a missing card.  This will be connected to pin 2 of the Arduino
• COM needs to be connected to GND