Design and Implementation of an Intelligent Greenhouse Monitoring System Based on STM32

This paper designs an intelligent greenhouse monitoring system to achieve the purpose of intelligent and precise acquisition, storage, and transmission of various data. The main control chip of the system is the STM32F103C8T6 minimum system board, which uses soil moisture sensors, photoresistors, temperature and humidity sensors, raindrop sensors, CO₂ sensors, and other sensors to collect data. An OLED display shows the monitored data on site, and an ESP8266 module transmits the data to the ONENET cloud platform via Wi-Fi. Then, an abnormal indoor parameter generates a high-level trigger to activate the buzzer alarm. After physical testing, the intelligent monitoring system can achieve intelligent monitoring of various environmental data such as indoor and outdoor temperature and humidity, light intensity, and air quality.