基于单片机的空气中PM2.5浓度报警器

The design is the detection of PM2.5 concentration.On the one hand,itcan monitor the air condition.On the other hand,it is also necessary forpeople who need high quality air quality to have this air quality indicatorfunction.The portable detector is the original intention of my design,so as tomake timely and effective countermeasures.This project designs anelectronic device that can automatically detect the fraction of PM2.5.ThePm2.5 concentration in the air is monitored in real time,such as warning andalarm when it is higher than a certain limit.When the concentration ofPM2.5 exceeds the upper limit,it is also required to be able to control therotation of the fan and simulate the ventilation function of the system.Thissystem is the original prototype of the air detection and treatment system,which requires the realization of basic functions in physical form.Key words:PM2.5;Single chip microcomputer;alarm;Sensortechnology;Dust concentration目录第一章、概述.....1.1、设计的主要内容和意义......111.1、设计的主要内容....…11.1.2、设计的主要意义..........1