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Based on the digital temperature sensor DS18B20 wireless alarm system
Jianping Zeng
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Abstract
This system takes advantage of the digital temperature sensor DS18B20 collecting ambient temperature to single-chip microcomputer of STC89C52 as the core control components and throught digital display of thermomeler temperature.If the temperature is lower than the temperature we setting on wireless alarm device,then realize telecontrol.Therefore,this system has the hardware circuit structure is simple,low cost,high sensitivity and sighifican advantages.