import machine
import uos
SD_VSPI_SLOT = 2
uos.mount(machine.SDCard(slot = SD_VSPI_SLOT), '/sd')
   # SCK:18, MOSI:23, MISO:19, CS:5
uos.listdir('/sd')      # list files on SD Card 
			#SD_HSPI_SLOT = 3
		        # HSPIで接続する場合は以下
#uos.mount(machine.SDCard
		(slot = SD_HSPI_SLOT), '/sd')
   # SCK:14, MOSI:13, MISO:12,CS:15


