History

Luc ce340faf94 Clean warnings when all warning enabled (#2112 ) * Clean warnings when all warning enabled Not used variables / functions due to debug log Dual define with different values : cores\esp32/binary.h #define B110 6 #define B1000000 64 tools/sdk/include/newlib/sys/termios.h #define B110 3 #define B1000000 23 Local variable returned in WiFiclient Secure * change due to deprecated function * Update with proper variable and label * Update esp32-hal-i2c.c * Apply changes requested * Fix warnings due to #define conflict thanks @atanisoft		2018-11-29 11:34:55 +01:00
..
examples	Unify time modification on SD and SPIFFS (#738 )	2018-03-04 21:20:34 +01:00
src	Clean warnings when all warning enabled (#2112 )	2018-11-29 11:34:55 +01:00
library.properties	Add FS, SD and SD_MMC (#256 )	2017-03-10 15:25:38 +01:00
README.md	SD library explanation (#262 )	2017-03-14 14:53:59 +01:00

SD library

This library provides the integration of ESP32 and SD (Secure Digital) cards without additional modules.

Sample wiring diagram:

For others SD formats:

Image source: Wikipedia

- Warning: Some ESP32 modules have different pinouts!

Do I need any additional modules, like Arduino SD module?

No, just wire your SD card directly to ESP32.

What is the difference between SD and SD_MMC libraries?

SD runs on SPI, and SD_MMC uses the SDMMC hardware bus on the ESP32.

Can I change the CS pin?

Yes, just use: SD.begin(CSpin)