基于DS12887和DS18B20的多功能电子时钟设计
esign of Multifunctional electronic clock based on ds12887 and ds18b20
本文介绍了一个基于DS12887和DS18B20的多功能电子时钟设计，采用STC89C52RC作为核心控制芯片，通过液晶1602A实时显示温度和时间。可通过调时选择按键选择调节年、月、日、星期、时、分、秒，并可通过上调键和下调键进行双向调节，时间调节同时考虑了闰年。软件中设定中午十二点为闹钟时间，闹钟响后可通过按任意键取消闹铃。另外本设计+5v直流电源采用了LM7805电压转换元件，并采用MAX232自制下载器，通过STC_ISP_V479软件进行程序下载，并通过了硬件测试。
his paper describes a design of multifunctional electronic clock based on ds12887 and ds18b20, the design use stc89c52rc as the core chip. through the lcd of 1602a to display the real-time and the real-temperature. By the select key to regulate the second,minute,hour,week,date,month,year. By the up-regulate key and the down-regulate key to regulate up or to regulate down, the regulation also in consideration of leap year. 12 AM is the alarm time in the software and put down any key will close the alarm clock. In addition, the design of +5v DC power used lm7805 .The design also make a downloader with using of MAX232. By the software STC_ISP_V47 to download the program and test it in the hardware successfully.
赵春见、张亚鹏、余泽喜
电子电路电子技术应用电子元件、电子组件
S18B20S12887电子时钟液晶屏
S18B20S12887Electronic clockLCD screen
赵春见,张亚鹏,余泽喜.基于DS12887和DS18B20的多功能电子时钟设计[EB/OL].(2010-01-20)[2025-07-25].http://www.paper.edu.cn/releasepaper/content/201001-855.点此复制
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