摘要 智能设备在生活中随处可见,电子类产品的迅速发展如雨后春笋。基于单片机的小秘书系统以 AT89C51 做为核心控制芯片。DS12C887 为高精度时钟芯片,通过LCD1602液晶显示器显示时间,通过按键可以设置年、月、日、星期、时、分、秒,以及设置闹铃时间和到时报警功能。DS18B20 做为温度传感器以实时测量温度,通过数码管显示实时测得的环境温度。当提前预设的时间到的时候,蜂鸣器会发出嘀嘀声报警。 39648 毕业论文关键词 小秘书;单片机;DS12C887
Abstract Intel l igent devices can be found everywhere in our dai ly l ife, the rapid development of electronic products are springing up. Li t t le secretary system based on single chip microcomputer to AT89C51 as core control chip. DS12C887 is a high precision clock chip, through LCD1602 display t ime, through the key to set the year, mouth, day, week, hour, minutes and second, and to set the alarm t ime and then alarm funct ion. DS18B20 as temperature sensor in real t ime temperature measurement , through digi tal tube display real-t ime measurement of temperature. When the preset time is on, the buzzer can send out alarm sound drops.
key words:small secretary ; MCU;DS12C887
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