基于nodeMCU的空气质量管家，通过MQ烟雾传感器，dht温湿度传感器，空气颗粒物传感器，利用继电器控制取暖器，加湿器，净化器，报警装置的开关。
Air quality Alert based on nodeMCU, through MQ smoke sensor, dht temperature and humidity sensor, air particulate sensor. Using relay to control the switch of heater, humidifier, purifier, alarm device.
