====SDCARD====

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This is a cheap interface found on eBay and elsewhere from China
to connect an SDCARD. Apparently the pull-ups are too low in value
and out of spec.

{{:interfaces:sdcard.pdf|Schematic}}

===Resources===

[[https://www.ti.com/lit/ds/symlink/lm1117.pdf|LM1117 LDO datasheet]]

[[http://elm-chan.org/docs/mmc/mmc_e.html|MMC/SDC howto]]

[[https://www.sdcard.org/downloads/pls/|SDCARD spec]]