I have an SD Card Module, which works great on my Uno. I have the SD Fat ported library, but the demo fails immediately on the libraries begin function (error code 10)
Any how I re checked my hardware on the Uno and it got me thinking, the difference is that the Uno was using the 5v output and the Photon has a 3.3v.
I connected ground on the Uno and Photon, and used the Uno 5v Pin and guess what, it worked.
Now my electronics knowledge is very small, so my question is, what do i need to do to get this to work with my Photon?
Any help would be great