使用STC89C52单片机作为核心的空气灰尘测试仪程序。灰尘传感器可以使用串口读取和AD采集两种方式进行数据采集，本设计主要是使用了串口直接读取的方式来设计的，单片机读取数据后通过内部处理后，通过LCD12864显示出来。本设计的亮点是串口数据的接收处理。-Use STC89C52 microcontroller as the core of the air dust tester program. Dust sensor can use the serial read and AD are two ways to collect data collection, this design is a way to use the serial port to directly read design, MCU After reading through the internal process by LCD12864 display. Highlights of this design is to receive serial data processing.