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DS18B20是达拉斯半导体公司的1-wire器件。介绍了DS18B20在温度监测系统中的应用,讨论了DS18B20的特点及系统的硬件、软件设计,给出了硬件接口电路和部分软件编程。系统具有设计简单、成本低廉、可靠性高的特点。
The DS18B20 is a Dallas Semiconductor 1-wire device. The application of DS18B20 in temperature monitoring system is introduced. The characteristics of DS18B20 and the hardware and software design of the system are discussed. The hardware interface circuit and some software programming are also given. The system has the characteristics of simple design, low cost and high reliability.