However, SPI mode and SD bus mode both use the same card registers, state machine, flash interface, and flash controller. So, if he can still do any kind of memory accesses, almost everything has ...

He was inspired by Intel’s Edison compute module and he tried to go one better. The result is the SDuino, an ATMega328P processor-based development module, which fits on a standard SD card. It even ...

Editor note: Dmitry’s design isn’t the first SD/MMC interface for the Visor. Portable Innovation Technology’s SD MemPlug Module supported SD/MMC way back in 2002.