基于51单片机的简易电子时钟，主要通过单片机的内部定时器产生秒时基信号，实现电子时钟功能。主要功能有：时钟功能，闹钟功能，整点报时，闹钟报警，调时，调闹钟等。-51 simple microcontroller-based electronic clock, mainly through the microcontroller' s internal timer second time base signal, to achieve the electronic clock function. The main functions: the alarm clock function, alarm function, hourly chime, alarm clock, tune, tune alarm clock.