本设计由单片机时钟芯片、模数转换芯片为核心，辅以必要的电路，构成了一个具有多功能的数字时钟 。能够准确的显示时间、调整时间、闹钟定时等功能。-designed by the MCU clock chip, analogue to digital converter chip as the core, supplemented by the necessary circuit, constitute a multi-function digital clock. To accurately ind