MicroPython board does fits a internal file system. This means that Python language on a MicroPython board can also manage files!
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On a MicroPython board, you can manage files and directories. Creating them, deleting them, adding data to them, etc.
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As any good implementation of Python, MicroPython can manage text files and binary files.
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== Data Logging on MicroPython ==
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Doing data logging with MicroPython is quite easy. You just open a file and write data into it like you will do with any Python code.
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=== Writing data to text file ===
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The following example adds lines to the 'file.txt'. The {{fname|with}} statement will automatically close the file when the code gets out of the {{fname|with}} scope.