"基于单片机的数字时钟设计与实现"

本设计以数字集成电路技术为基础，单片机技术为核心，采用模块化结构的软件设计和C语言编程。系统通过带字库的LCD12864显示数据，可通过4*4矩阵键盘控制显示文字、公历日期（年、月、日、星期）和时间（时、分、秒），文字反白、自定义字符、图片显示。用户可以通过键盘调整时间、日期和温度，同时按下键盘时，七段数码管显示相应键位的键位标识。摘要中首先描述了系统硬件工作原理，着重介绍了各硬件接口技术和各接口模块的功能；其次，详细阐述了程序的各个模块和实现过程。关键词：单片机；数字温度日历表设计。 Abstract: This design is based on digital integrated circuit technology, with microcontroller technology as its core. It utilizes a modular software design structure and is programmed in C language. The system displays data through an LCD12864 with a built-in font library, and can control the display of text, Gregorian calendar dates (year, month, day, and day of the week), and time (hour, minute, second) using a 4*4 matrix keyboard. It can also display inverted text, custom characters, and images. Users can adjust the time, date, and temperature using the keyboard, and when a key is pressed, the corresponding key position is displayed on the seven-segment digital tube. The summary first describes the working principle of the hardware system, focusing on the introduction of various hardware interface technologies and the functions of each interface module. It then elaborates on the implementation process of each module of the program. Keywords: microcontroller; digital temperature calendar design.