Format SD card with FAT file system. Insert SD card to the slot, then run the program. While SD card is being formatted, LED lights. Once format is finished, it turns off and blinks with long period ...

Answer: using exFAT SD cards of all shapes and sizes (microSD, miniSD or SD) are used in mobile devices like smartphones, tablets, digital cameras, surveillance cameras and so on. When formatting SD ...

Card was unformatted, so the initial mount has failed. Card was then partitioned, formatted, and mounted again. I (1776) example: Initializing SD card W (1856) vfs_fat_sdmmc: failed to mount card (13) ...