Try SdFat, a Library for SD Cards

[jeremywmccarter]

@peekay123 Here is the post from @ScruffR that caused me to add those begin() calls...but perhaps I misunderstood his meaning...

General SPI Question: using SPI.begin();

Normally libraries should control their own CS pins (and most do) and the clock speed should not be an issue, but to be sure, call the begin() function of the slowest device last. A “bigger” problem is when the SPI modes or bit order are different. Arduino has a transaction scheme that alows for switching between these modes but Particle does not, so many libraries rely on the modes to be set correctly once for all times but if one begin() sets other modes than another device requires, you’d ha…