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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Gordon
Ok, great - that's a lot better.
For basic SD cards (in MMC mode), all you should actually need (and all Espruino needs) is: GND, 3.3v, CLK, DI, DO, CS
For higher speeds (in proper SDIO mode) you can use two extra pins for data I believe (although Espruino doesn't do that right now), but I have no idea why others would have 15!