万年历程序 本系统采用了以广泛使用的单片机技术为核心,软硬件结合,使硬件部分大为简化,提高了系统稳定性,并采用LED显示电路、键盘电路,使人机交互简便易行,此外结合音乐闹铃电路、看门狗和供电电路-Calendar program used the system widely used in single-chip technology as the core, software and hardware combination, so that greatly simplified hardware and improve the system stability, and the use of LED display circuit, keyboard circuit is easy to machine interaction In addition, combining music alarm circuits, watchdog and power supply circuit