基于PIC单片机的万年历源程序，以C语言编写，代码里有清楚的注释，是设计参考的最佳选择。-PIC microcontroller-based calendar source code to C language, code notes, there are clear is the best choice for design reference.

通过18b20和LCD1602和按键，完成包括温度检测及报警，时钟日期显示以及修改的功能。(Through 18B20 and LCD1602 and buttons, we finish the functions of temperature detection and alarm, clock date display and modification.)