基于AT89S51的数字温度测量系统.本文设计了一套温度测量系统，整个系统采用总线式开发，控制器选用AT89551 单片机，温度采集元件选用温度传感器LM35,显示部分采用七段发光二极管.整个系统由LM35采集的信息,经传送器和A/D转换后送至AT89S51进行数据处理并控制LED显示温度.-AT89S51 based Digital Temperature measurement system. This paper designed a set of temperature measurement system, the system uses the bus-type development, controller, microcontroller use AT89551, temperature, temperature sensor acquisition device selection LM35, as some use of seven segment light emitting diodes. The whole system consists of LM35 collection of information, through the transmitter and A/D converted data sent to the AT89S51 processing and control LED display temperature.