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LoRa32 SD Card fail to initialised

Q&A Forum › Category: ESP32 › LoRa32 SD Card fail to initialised
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Ayu Zack asked 7 years ago

Hi, im using TTGO LoRa32 with micro SDCard module
LoRa32 (https://www.banggood.com/2Pcs-Wemos-TTGO-LORA32-868915Mhz-ESP32-LoRa-OLED-0_96-Inch-Blue-Display-p-1239769.html?)
micro SD card module (https://makeradvisor.com/tools/sd-card-module/)
and im using your tutorial to test only reading and writing to sd card module, its not configured with sensor only ESP32 and the SD card module – https://randomnerdtutorials.com/esp32-data-logging-temperature-to-microsd-card/
but i’m getting error message “Card Mount Failed”, i’ve tried
1. replace with another micro SD card module (i ordered 2 units)- same error
2. replace with another sd card – same error
3. using a different model SD card module – same error.
4. added pull-up resistor – same error
5. use ESP32 dev board with same sd card module – same error
what should i do?
 

5 Answers
0 Vote Up Vote Down
Rui Santos Staff answered 7 years ago

Hello Ayu, I hope you are doing well!
You need to tell me that you’ve followed the exact schematics and that you’ve double-checked, because I can’t replicate that issue on my end… Can you try with a different board (liked the ESP32 DO IT board)?

0 Vote Up Vote Down
Ayu Zack answered 7 years ago

Hello Rui,
1. I’ve followed the exact schematic except without the sensor since i only want to test the sd card function. Refer link for pic (http://i68.tinypic.com/2ngalts.jpg).I used the same exact code i just changed the WIFI credential
2. I’ve tried on different board, refer below it can connect to WIFI then error message “Card Mount Failed”
https://www.lazada.com.my/products/esp-32s-esp32-development-board-24ghz-dual-mode-wifibluetooth-antenna-module-i127965168-s141936049.html?spm=a2o4k.order_list.detail_image..790d49fbM7Iv69
refer below the error message
rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:952
load:0x40078000,len:6084
load:0x40080000,len:7936
entry 0x40080310
Connecting to Doremon
..
WiFi connected.
Card Mount Failed
2018-10-30T11:21:31Z
2018-10-30
11:21:31
What else should i try?

0 Vote Up Vote Down
Rui Santos Staff answered 7 years ago

Hello again! These are the most common problems for the scenario and I encourage you to double-check everything.

  1. No FAT filesystem on SD card. Every other filesystem will fail. (make sure you format the MicroSD card properly)
  2. No MicroSD card in slot’s module
  3. Bad wiring fault

Can you double-check the MicroSD card? Thanks for your patience,
Rui

0 Vote Up Vote Down
Ayu Zack answered 7 years ago

Hello Rui,
Yes, I understand where you are coming from

  1. I’ve double check and reformat the SD Card.again to be sure. I’ve even test with 2 different SD card. Same error.
  2. Checked. 🙂
  3. So i tried connect the wire directly from ESP to the SD card module. Yup, bad wiring i guess, now it work.

Thanks for the help. Appreciate it 🙂
Have a good day
 

0 Vote Up Vote Down
Rui Santos Staff answered 7 years ago

I’m glad it worked! Regards,
Rui