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Add option to select SPI speed at SD::begin
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@ -65,7 +65,7 @@ private:
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public:
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// This needs to be called to set up the connection to the SD card
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// before other methods are used.
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boolean begin(uint8_t csPin = SD_CHIP_SELECT_PIN);
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boolean begin(uint8_t csPin = SD_CHIP_SELECT_PIN, uint32_t speed = SPI_HALF_SPEED);
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// Open the specified file/directory with the supplied mode (e.g. read or
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// write, etc). Returns a File object for interacting with the file.
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