this is a SD card adapter with logic level conversion and 5 V powering. but STM32 is 3.3 V and SD card is 3.3 V device.
I don't recommend to use it. wired to 5 V VCC it could output 5 V on MISO and the MISO pin on Blue Pill is not 5 V tolerant
Hello Pickle_Rick
I have the same problem as you. I want to use a sd card with a stm32 but I can't find any example, explanations, libraries, etc. to do that. Did you find any library as you asked in this post? Could you please share with me this info? Thanks a lot for your help. Regards