关于SD卡的资料和程序，主要是51和STM32的程序，还有关于SD卡的详细资料。-Information and procedures on the SD card, is 51 and the STM32 program, as well as detailed information on the SD card.

Arduino GPS 扩展板 带SD卡槽 电子积木接口-Arduino GPS with SD card slot expansion board electronic building blocks Interface

Arduino quiz game. Display question on 2004 LCD and select answer on key. Question save in DBFIII base on SD card, sound play on DFPlayerMini. Schematic, source code and needed files in archive. Created in All question send to mail oldfgag@mail.ru