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43 lines
978 B
Markdown
43 lines
978 B
Markdown
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# SD library
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This library provides the integration of ESP32 and SD (Secure Digital) cards without additional modules.
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## Sample wiring diagram:
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For others SD formats:
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Image source: [Wikipedia](https://upload.wikimedia.org/wikipedia/commons/thumb/a/ab/MMC-SD-miniSD-microSD-Color-Numbers-Names.gif/330px-MMC-SD-miniSD-microSD-Color-Numbers-Names.gif)
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```diff
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- Warning: Some ESP32 modules have different pinouts!
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```
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## FAQ:
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**Do I need any additional modules, like Arduino SD module?**
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No, just wire your SD card directly to ESP32.
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**What is the difference between SD and SD_MMC libraries?**
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SD runs on SPI, and SD_MMC uses the SDMMC hardware bus on the ESP32.
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**Can I change the CS pin?**
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Yes, just use: `SD.begin(CSpin)`
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