History

P-R-O-C-H-Y c90dffef44 Edit sd_diskio to check card status (#5988 )		2021-12-14 14:22:30 +02:00
..
examples	Examples update, add a note for configTime() that only one ntp server is supported by lwip (#5343 )	2021-07-22 20:09:28 +03:00
src	Edit sd_diskio to check card status (#5988 )	2021-12-14 14:22:30 +02:00
library.properties	Bump library versions to 2.0.0 (#5182 )	2021-05-18 14:00:49 +03:00
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)