关于单片机的液晶（2004）、电子钟、键盘的驱动- LCD (2004), electronic bell, keyboard driver of Single-chip

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