利用msp430单片机对空气中的细颗粒物浓度进行处理并显示，以光学灰尘传感器发出激光经细颗粒物衰减后的模拟量进行采集，经单片机处理后显示，另外还有温湿度显示部分-Using msp430 single chip microcomputer to deal with the concentration of fine particulate matter in air and display, issue the laser in the optical sensor dust after fin