Design of an intelligent indoor air quality monitoring and purification device

An air monitoring and purifying device indoor was designed based on wireless transmission. The STC12C5A60S2 single-chip microcomputer was used as control core of the device, the parameters of indoor were collected by means of optical air quality sensor GP2Y1010AU0F MQ138, formaldehyde gas detection sensor and a temperature and humidity sensor module DHT11, and the communication was finished between the host and slave by the wireless transceiver module NRF24L01, Finally, the function of monitoring and purifying the air was realized.