本次做的数字日历是以单片机（AT89C51）为核心，结合相关的元器件（共阴极LED数码显示器、BCD-锁存/7段译码/驱动器74LS164等），再配以相应的软件，达到制作简易数字日历的目的，其硬件部分难点在于元器件的选择、布局及焊接。-The figures do bell on SCM (AT89C51) at the core, Combined with the components (a total of cathode LED digital display, BCD- latch /7 of decoding/actuator 74LS164), and factoring in the corresponding software, Easy to produce digital clock purposes, as part of the hardware components is a difficult choice, layout and welding.