设计内容：采用AT89S51单片机，DS18B20数字温度采集器件，单总线驱动等电路设计制作一个点在温度计，能利用1602LCD液晶显示温度，-Design content: The AT89S51 Singlechip, DS18B20 digital temperature acquisition device, such as a single bus driver circuit design to produce a point in the thermometer to make u