DS18B20 digital temperature sensor

The character and application in the granary temperature decting and controlling system of digital temperature sensor DS18B20 are introduced.

介绍了数字温度传感器DS18B20的特点、测温原理，及其在粮仓远程温度测控系统中的应用。

This paper introduced the characteristic of digital temperature sensor DS18B20 especially its new characteristic comparing with DS1820 state.

说明了单总线数字式温度传感器DS18B20的性能结构，特别是与较早的产品DS1820比较，介绍了其所具有的新特点。

Water temperature is given by the digital sensor DS18B20, the wanted temperature is set by the button, both temperature are shown by LED.

采用数字式温度传感器DS18B20测量水温，用按键设定所需温度，数码管显示实际温度与设定温度。