Description: This paper presents the design of multifunction digital thermometer system, AT 89S52 MCU DS18B20 single-bus digital temperature sensor, DS1302 clock calendar chip, ISD1420 voice recorder chip devices. The digital thermometer measurement range of 0 ~ 120 e, and multi-point measurement and control. The display resolution is 0. 1 e, error [? 0 5 e. Alternately display real-time date, time, and temperature button to set the date, time, alarm temperature upper limit and the lower limit. When the temperature exceeds the set upper or lower limit, and audible alarm. To achieve real-time voice broadcast date, time, and temperature. The system has high accuracy, stable, multi-function, easy-to-use features, can be widely used in industrial and agricultural production and people' s daily life, temperature measurement and monitoring, has good practical value.
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数字温度计\一种实用的多功能数字温度计设计.pdf
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..........\..............\万年历温度计.doc
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数字温度计
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