Design of Potted Environmental Monitoring System Based on Internet of Things Technology

Abstract

In recent years, with the rapid development of science and technology, as well as the improvement of family living standards and the enrichment of material life, potted plants appear in more and more families and working environments. It can not only purify air and absorb dust, but also indirectly improve mood and relieve eye fatigue. Therefore, potted plants participate in people’s life more and more. However, as most potted plants are cultured artificially, this cultivation method affects the growth state and survival rate of potted plants to a certain extent. To solve this problem, this paper designs an intelligent potted plant monitoring system with wireless networking by using stm32 single chip microcomputer, oled12864 liquid crystal display, photosensitive sensor, dht11 temperature and humidity sensor, wifi module, alarm, etc.

The system consists of software and hardware. stm32 microcontroller is the hardware foundation. dht11 temperature and humidity sensor measures temperature and humidity, and photosensitive sensor measures light intensity. wifi module transmits data to cloud platform through MQTT protocol. Android studio is used to write Android mobile phone app and view potted environment data on the mobile phone side. The aim is to design a real-time and effective intelligent potted plant environment remote monitoring system. With oled12864, users can observe the data acquired by various sensors nearby. When the system is running in wifi module, the collected data and information are transmitted to OneNet cloud server through wireless module to trigger the next link to be transferred to mobile phone app and displayed on the application interface of the mobile phone. Users view data, analyze data, and adjust and optimize the real-time environment of potted plants. Finally, tests show that the system can effectively monitor and manage the growth environment of potted plants and basically meet the design objectives.

【Key words】WIFI,Environmental monitoring, Internet of things technology, MQTT protocol ,Stm32 single chip microcomputer