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The campus air environment directly affects the physical and mental health of teachers and students. In order to provide a quick and accurate way of monitoring campus air environment, this paper develop a real-time monitoring air environment detector based on Microcontroller Unit (MCU) STM32 and sensor. The monitoring system can detect dust particles PM2.5, harmful gas carbon monoxide (CO) concentration, temperature, humidity and illumination, display the real-time detected data on organic light-emitting diode (OLED) display screen, and transmit the data to WeChat applet for real-time viewing. The results show that the air environment detector designed in this paper can accurately detect the air environment in Sanshui campus of Guangzhou College of Technology and Business, providing effective protection for the healthy living environment of teachers and students.
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