基于单片机的温度浓度周期测试时间与空气中的浓度测量相比，发送数据！温度不断更新！看门狗定时器！计数器T0等功能-Microcontroller-based temperature concentration cycle testing time compared with air concentration measurement sent! Temperature is constantly updated! Within the watchdog timer! Counter t0

实时监测PM2.5浓度以及温湿度，并在浓度超过阈值上限时启动净化(PM2.5 concentration and temperature and humidity were monitored in real time, and the purification was started when the concentration exceeded the threshold limit)