<![CDATA[CoreInk SD card in Micropython]]>I need to hook up an SD card to a CoreInk unit using MicroPython. I have tried code that works perfectly with an ESP32 WROVER, as well as code from the boot.py file from an M5stack-CORE, but nothing works on the CoreInk. For example, the code:
import machine, os
sd = machine.SDCard(slot=3, miso=34, mosi=23, sck=18, cs=14)
sd.info()
os.mount(sd, '/sd')

gives the error:
OSError: (110, 'ESP_ERR_TIMEOUT')

]]>https://community.m5stack.com/topic/5370/coreink-sd-card-in-micropythonRSS for NodeSat, 11 Apr 2026 04:51:24 GMTWed, 07 Jun 2023 02:27:42 GMT60<![CDATA[Reply to CoreInk SD card in Micropython on Sat, 15 Jul 2023 00:38:32 GMT]]>Has anyone had success with MicroPython SD card access on the CoreInk? I just installed the firmware that seems to be about 1 week old, but all I get is different error messages when trying to mount the SD card. With slot 1 or 2, I get:

E (8624) sdmmc_common: sdmmc_init_OCR: send_op_cond(1) returned 0x107

With slot 2, I get:

E (8049) spi_master: spi_bus_add_device(373): host not initialized
E (8052) sdmmc_io: sdmmc_io_reset: unexpected return: 0x102

With slot 3, I only get OSError(16,), without additional info.
If anyone has gotten the SD card to work on the CoreInk, which slot and pins do you use? Is there any other initialization necessary?

--
Correction: it seems the only reason I get different error message is because I commented out sd.info(). With sd.info(), I still get the original error. So still no SD card support at all?

]]>https://community.m5stack.com/post/21581https://community.m5stack.com/post/21581Sat, 15 Jul 2023 00:38:32 GMT<![CDATA[Reply to CoreInk SD card in Micropython on Mon, 12 Jun 2023 14:44:45 GMT]]>Sdcard is missing fully for the core S3 so I assume there is a problem. I’m assured sdcard support will be added this week.

]]>https://community.m5stack.com/post/21178https://community.m5stack.com/post/21178Mon, 12 Jun 2023 14:44:45 GMT<![CDATA[Reply to CoreInk SD card in Micropython on Mon, 12 Jun 2023 07:13:14 GMT]]>Hello @boardsurfer

with an Arduino program I can access the SD card just fine. That tells me the wiring is ok. (Note: I used GPIO25 as CS.)

However with the same setup and using MicroPython I have not been able to access the SD card.

Thanks
Felix

]]>https://community.m5stack.com/post/21170https://community.m5stack.com/post/21170Mon, 12 Jun 2023 07:13:14 GMT<![CDATA[Reply to CoreInk SD card in Micropython on Sat, 10 Jun 2023 15:08:54 GMT]]>No support for M5stack products at all anymore, it seems? Time to look for alternatives.

]]>https://community.m5stack.com/post/21157https://community.m5stack.com/post/21157Sat, 10 Jun 2023 15:08:54 GMT