To use this on the Nano 33 IOT the VUSB pads on the bottom of the Nano need a drop of solder to connect them together and the Nano needs to go over the mit Power is supplied via USB plug. Otherwise, the 5V pin on the Nano will not supply power. No special code is required and the current standard SD samples will work. The current SPI library for the nano 33 IOT automatically honors the nano's 48MHz clock.
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