硬件是用到的元件有：主要的控制部分是单片机AT89C52，时钟电路为DS1302，温度传感器DS18B20组成的温度检测电路、LCD1602组成的显示电路、键盘接口5个模块组成。
关键词电子万年历AT89C52DS1302DS18B20LCD1602
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f目
1绪11122
录
论
研究背景及意义
单片机的定义
方案论证与设计21222324
电子万年历的主控制系统
选择时钟芯片
测温部分的选择
显示部分方案的选择
3硬件电路设计及仿真结果3132
电路设计框图
控制电路的选择r