https://github.com/jmysu/esp32-spi

Some SPI related...
https://github.com/jmysu/esp32-spi

arduino esp32 platformio sdfat spi

Last synced: 2 months ago
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Some SPI related...

• Host: GitHub
• URL: https://github.com/jmysu/esp32-spi
• Owner: jmysu
• License: gpl-3.0
• Created: 2020-11-27T12:33:48.000Z (over 5 years ago)
• Default Branch: main
• Last Pushed: 2020-11-27T13:08:48.000Z (over 5 years ago)
• Last Synced: 2025-06-01T08:43:47.017Z (about 1 year ago)
• Topics: arduino, esp32, platformio, sdfat, spi
• Language: C++
• Homepage:
• Size: 316 KB
• Stars: 1
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# ESP32-SPI  [![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)


Some SPI related notes...

 

### Wires to connect SPI SD/TF card 


Use ESP32's VSPI , works on Arduino SdFat library


    



  









 Widora-Air SdFat notes:

 - Change SPI pins in SdSpiDriver.h: _SPI.begin(18,19,23); //Change to VSPI_ 


 - Select the correct SPI SS pin: _SD_CHIP_SELECT = 5;_ 


 - Change SPI Speed from 50MHz to 25MHz:  _if (!sd.cardBegin(SD_CHIP_SELECT, SD_SCK_MHZ(25))) {   //works under 25MHz_ 








### References

  - [Arduino SdFat V2](https://github.com/greiman/SdFat) Arduino library SdFat.