This TinyShield incorporates level shifters and a local power supply to ensure proper and
safe operation over the entire TinyDuino operating voltage range up to 5V – no need to
worry about damaging your microSD cards if you’re running at 5V.
Note: This does not include the microSD card (sold separately).
TECHNICAL DETAILS
To see what other TinyShields this will work with or conflict with, check out
the TinyShield Compatibility Matrix
microSD Specs
o Uses standard Arduino SD Card Library
o Supports standard microSD cards and SDHC cards
TinyDuino Power Requirements
o Voltage: 3.0V - 5.5V
o Current: 100mA or more during SD card writes, depends on the microSD card being
used. Because of this high current, the TinyDuino processor cannot be used with a
coin cell.
Pins Used
SPI Interface used
o 10 - CS: This signal SPI chip select for the microSD card
o 11 - SCLK: This signal is the serial SPI clock out of the TinyDuino and into the microSD
card.
o 12 - MISO: This signal is the serial SPI data out of the microSD card and into the
TinyDuino.
o 13 - MOSI: This signal is the serial SPI data out of the TinyDuino and into the microSD
card.
