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    SD Card Interface: SPI or SDIO?

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    spisdcardlibrary
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    • E Offline
      Eric24
      last edited by

      I'm assuming that the SD library interfaces with the SD Card using SDIO mode. But it is also possible to access an SD Card using SPI. Is that supported? Are there any libraries for it?

      The objective here is to use less pins. If I'm already using SPI for something else, three of those pins can be reused for the SD Card.

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