I bought a YX-5300 from China via eBay. then I bought one from the USA because I don't care for thumb twiddling while waiting.
the chinese YX-5300 has an SPI interface, there is no onboard SD socket
does anybody have any experience with this? how would you send commands to an SPI interfaced card? I do it everyday with SD, but we have a library for that.
pins are:
load
cs
sck
sdi
vcc
gnd