machine.SDCard not on UM_FEATHERS2 ?

[SquirtleSquadLeader]

Can someone confirm if machine.SDCard() is included in the UM_FEATHERS2 port? This board does not have a microSD card reader. I was hoping to use an external microSD card breakout. I am unable to import it using the downloaded v1.22.2.bin .

Trying to perform an import yields the following output:

MPY: soft reboot                                                                
MicroPython v1.22.2 on 2024-02-22; FeatherS2 with ESP32-S2                      
Type "help()" for more information.                                             
>>> from machine import SDCard                                                  
Traceback (most recent call last):                                              
  File "<stdin>", line 1, in <module>                                           
ImportError: can't import name SDCard                                           
>>> 

[davefes]

At >>> help('modules')

[sosi-deadeye]

I don't know why, but the hardware SDCard support is disabled: https://github.com/micropython/micropython/blob/master/ports/esp32/boards/UM_FEATHERS2/mpconfigboard.h#L6

You could try to compile it with support or just use the Python version of SDCard.

If the ESP32S2 is connected to the internet, you could use mip in the repl.

import mip


mip.install("sdcard")

The init method: https://github.com/micropython/micropython-lib/blob/master/micropython/drivers/storage/sdcard/sdcard.py#L42

[SquirtleSquadLeader]

Thank you. I was able to get micropython-lib/micropython/drivers/storage/sdcard to work.

I am interested in recompiling with SDCard support enabled. Can you advise on what edits would need to be made to enable SDCard to be part of the .bin?

I am using an Adafruit Adalogger featherwing which would put my chip select on GPIO 3. I presume the below would work?

#define MICROPY_HW_BOARD_NAME "FeatherS2"
#define MICROPY_HW_MCU_NAME "ESP32-S2"
#define MICROPY_PY_NETWORK_HOSTNAME_DEFAULT "FeatherS2"

#define MICROPY_PY_BLUETOOTH                (0)
#define MICROPY_HW_ENABLE_SDCARD            (3)

#define MICROPY_HW_I2C0_SCL (9)
#define MICROPY_HW_I2C0_SDA (8)

#define MICROPY_HW_SPI1_MOSI (35)  // SDO
#define MICROPY_HW_SPI1_MISO (37)  // SDI
#define MICROPY_HW_SPI1_SCK (36)