SD card library

[carlos4242]

Another great addition to the library would be to write a library for some of the common Arduino shields to access an SD card.

An example is the Arduino Ethernet shield and (from memory) some of the wireless shields.

It is a little more complex because it would also involve some kind of file access.

SD cards on Arduino are accessed via their native SPI interface, so you'll need to understand the AVR module functions for this.

As always, keep it minimal, lean and mean, you'll only be able to use the S4A style Swift so no structs, enums or classes. If the language gives serious problems, drop me a line and I'll give advice how to work around most issues or, in extremis, try to patch the language to resolve the issue you're experiencing.