Originally Posted by gipetto
I don't see any spi level converters. Are you going the voltage divider route, then running the mcu at 3.3v and hope the mcu sees the low voltage from the 3360? I once made a shell myself by using a blowlamp to melt perspex over another mouse, then a towel to press it down around it.
3360 datasheet recommends vddio between 1.8 and 3.6 so 3.3v is totally fine...