An Indoor Air Quality Detection and Alarm System Based on Micro Control Unit

This paper designs and implements the indoor air quality detection and alarm system based on a micro control unit. Firstly, the overall design of the indoor air quality detection and alarm system is introduced. Secondly, the hardware design of the system is analyzed, including the selection of hardware modules and circuit layout for each component. Then, the system's software design process is researched. Finally, the system is experimentally tested and the error is investigated. The measured results show that the proposed indoor air quality detection and alarm system can detect and warn the indoor air quality, which has a wide range of application values.