microSD Specs

• Uses standard Arduino SD Card Library
• Supports most standard microSD cards and SDHC cards- cards larger than 8GB may not work!

Power Requirements

• Voltage: 3.0V - 5.5V 
• Current: up to approximately 100mA while reading from microSD card 

Pins Used

SPI Interface for microSD card:

• 10 - CS: This signal SPI chip select for the microSD card
• 11 - SCLK: This signal is the serial SPI clock out of the TinyDuino and into the microSD card.
• 12 - MISO: This signal is the serial SPI data out of the microSD card and into the TinyDuino.
• 13 - MOSI: This signal is the serial SPI data out of the TinyDuino and into the microSD card.

Additional:

• A0 - DAC Output: Analog output for audio amplifier
• 3 - IR Input: Output signal from infrared receiver 6.8 3.6

Dimensions

• 25.8mm x 25.0mm (1.02" x 0.98") Note: microSD car overhanges the edge by approx 3mm for easy removal
• Maximum height of board: 3.6mm (0.14") 
• Thickness with TinyScreen+ attached: 6.8mm (0.27")
• Weight (TinyShield only): 1.62 grams (0.06 ounces)