【摘要】 针对目前广泛应用的DALLAS公司的数字温度传感器DS18B20,分析了多点测温电路的缺陷,介绍了一个实现多点测温模块的实现方法。使用DS18B20,配合总线驱动双向三态门74LS245的电路成功实现了多点测温,并给出了编写模块驱动程序的流程,最后说明了多点测温模块适用的场合。更多还原

【Abstract】 This article introduces a method of measuring multi-point temperature with analyzing the fault of current measuring multi-point temperature according to DALLAS’ DS18B20 which is used widely at present.The circuit is introduced in this paper,which uses DS18B20,combined with bus driver three states gate circuit 74LS245 to realize measuring multi-point temperature.The module driver flow is also illustrated with the interpretation of application of the module.更多还原