12/23/2023 0 Comments Slot of library is inaccessibleI've just been through this issue while working on an SD card bootloader for another processor. I have just been using SD cards lying around the house, but I would like to pick out a micro SD card for general purpose use on my ESP32 and ESP8266 projects so that I can buy several in bulk and know that they will work and I'm not over stressing them by the way I am wiring them. What other circuitry should I be using or is this generally okay? I haven't seemed to have any problems yet. I have been using a micro SD card wired directly to my microcontroller (soldered to the sd card). I like to use ESP32 and sometimes ESP8266, are there specifications I need to match to my microcontroller? Say I wanted to use an UNO, would there be other specifications I needed to consider? I have read that there are reasons why it might not be possible to address all locations in cards with high capacity. I have read that older cards seem to work better. What specifications do I need to keep in mind when selecting my micro SD card and hardware to connect it to my microcontroller?
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