Design of an Intelligent Detection and Regulation System for Greenhouse Environment Based on the Internet of Things

Feng Zhou

doi:10.54691/cdb0tb38

Authors

Feng Zhou

DOI:

https://doi.org/10.54691/cdb0tb38

Keywords:

STM32 Microcontroller; Greenhouse; Environment Monitoring; Intelligent Control; Sensor Module.

Abstract

This paper presents an intelligent environment monitoring and control system for greenhouses based on the STM32 microcontroller. Taking STM32 as the core, the system integrates sensors for air temperature and humidity, soil moisture, light intensity, CO₂ concentration, and soil pH to collect key environmental parameters in real time, providing comprehensive data for evaluating crop growth conditions. An OLED display is adopted for on-site visualization, and a WiFi module is employed to upload data to the MQTT cloud for remote monitoring via mobile devices. Furthermore, the system realizes automatic regulation: the water pump relay is activated for irrigation when soil moisture is below the threshold, and the fan relay is triggered for ventilation when temperature, humidity, or CO₂ concentration exceeds the limit, thus maintaining stable environmental conditions. The proposed system provides a comprehensive, real-time, and intelligent solution for greenhouse management, which contributes to higher crop yield and quality, lower management costs, and possesses significant practical application value.

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