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14 lines
830 B
Markdown
14 lines
830 B
Markdown
# Non-Volatile Storage (NVS) Read and Write Example
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Demonstrates how to read and write a single integer value using NVS.
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The value holds the number of ESP32 module restarts. Since it is written to NVS, the value is preserved between restarts.
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Example also shows how to check if read / write operation was successful, or certain value is not initialized in NVS. Diagnostic is provided in plain text to help track program flow and capture any issues on the way.
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Check another example *storage/nvs_rw_blob*, that shows how to read and write variable length binary data (blob).
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Detailed functional description of NVS and API is provided in [documentation](https://esp-idf.readthedocs.io/en/latest/api-reference/nvs_flash.html).
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See the README.md file in the upper level 'examples' directory for more information about examples.
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