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根据数字温度传感器DS18B20的单总线的结构特点,利用简单的接口与单片机组成一个多点温度测量系统,给出了用DS18B20和AT89C2051单片机构成的温度测量系统的应用电路和参考程序。
According to the structure characteristic of the single bus of the digital temperature sensor DS18B20, a multipoint temperature measurement system is constituted by a simple interface and a singlechip, and the application circuit and reference program of the temperature measurement system formed by the DS18B20 and AT89C2051 singlechip are given.