在人机互动方面，采用改进型I/O端口复用键盘实现用户数据输入，使用两位数码显示管完成温度数据显示。

In the aspect of man-machine communication, we use the improved reused keyboard of I/O port to implement the users' data input, and displaying the temperature by two numeral displayers.

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四位数码管显示，智能一键通设计；

Four digital LED display, Intellgent design.

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基于数字温度传感器ds18b20的测温仪设计，三位数码管显示温度值，保留小数点后一位。

Digital temperature sensor based on the thermometer DS18B20 design, the three digital display temperature, keep one decimal place.

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