Equipment control and environmental monitoring design of smart home

A smart home control system based on RS485 bus was designed in this paper. The system includes data acquisition module, communication module and relay control module. A cross-platform control system was developed in Qt-creator software to enable the control and management on Windows, Android, and touch screens. The system can realize real-time monitoring of temperature, humidity, illumination, pressure difference, PM2.5 and CO2, and automatic control of each equipment through RS485 connection control module which can provide basis for linkage control of the equipment and the environment.