SD庫

Arduino電路板上的單片機自帶EEPROM：它是一種當芯片斷電時，裡面的內容依然可以保存下來的一種儲存器。該庫可讓您對EEPROM中的位元組進行讀取和寫入。

SD Class The SD class provides functions for accessing the SD card and manipulating its files and directories. - begin() - exists() - mkdir() - open() - remove() - rmdir() File class The File class allows for reading from and writing to individual files on the SD card. - available() - close() - flush() - peek() - position() - print - println() - seek() - size() - read() - write() - isDirectory - openNextFile() - rewindDirectory()

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