本设计的数字时钟利用 51 单片机作为核心芯片，辅以按键、蜂鸣器和LED显示器，以实现具有计时、校时、闹钟设定等功能。利用单片机实现的数字时钟具有编程灵活，便于功能的扩充等优点。-51 single-chip digital clock in this design as the core chip, combined with the buttons, buzzer and LED display, in order to achieve timing, timing, alarm setti

本设计的数字时钟利用 51 单片机作为核心芯片，辅以按键、蜂鸣器和LED显示器，以实现具有计时、校时、闹钟设定等功能。利用单片机实现的数字时钟具有编程灵活，便于功能的扩充等优点。-51 single-chip digital clock in this design as the core chip, combined with the buttons, buzzer and LED display, in order to achieve timing, timing, alarm sett

基于51单片机的辩论赛计时器制作！人性化设计，七个计时模式，测试可用。-Production based on 51 microcontroller debate tournament timer! The user-friendly design, seven timing mode, the test can be used.