General Firebeetle ESP32/8266 Troubleshooting

SD mmc pins of Firebeetle 2 Esp32-E

Ben.Ben 2023-05-05 18:57:53 416 Views1 Replies
Hi there,
Does anyone know what pins I can use for interfacing with SD in mmc mode?
Are they different from the ones on this page?
https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/sdmmc_host.html

2023-05-10 10:52:18

Greetings!

If my understanding was correct, the SD card can use the SPI communication,

wiki link: https://wiki.dfrobot.com/FireBeetle_Board_ESP32_E_SKU_DFR0654#target_18

The corresponding GPIO pins are therefore:

there is also an example of using an SD card module：https://wiki.dfrobot.com/SD_Module__SKU__DFR0071_

Be aware that some module requires 5V rather than 3.3V, you probably wanna check their specifications.

Regards,

xingzhao.zhu

Gravity: IO Shield for FireBeetle 2 (ESP32-E/M0) DFR0762