I made myself a sd shield to use with the mega it has a micro sd going to a sn74ahc125n and then to the SPI lines on the Mega. It also has a 3.3v regulator. MOSI -> 51 MISO -> 50 SCK -> 52 CS -> 10 I can not get any of the example sketches to work. I have also tried a shield from adafruit with …

Sd logger problem

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