A MULTI‑MODE INTELLIGENT AQUARIUM MONITORING SYSTEM WITH IOT (INTERNET OF THINGS) REMOTE CONTROL

Abstract

With the popularization of smart home technologies, traditional aquarium breeding suffers from issues including low monitoring accuracy, single control modes and inconvenient remote management. To address these drawbacks, this paper presents an intelligent ecological aquarium monitoring system based on STM32. Adopting the STM32F103C8T6 as the main control chip, the system integrates DS18B20, pH and TDS sensors to achieve real-time monitoring of water temperature and water quality parameters. It realizes automatic feeding, oxygenation and water circulation via servos and relays, and supports four operating modes: timing, manual, threshold and automatic, to meet diverse application requirements in different scenarios. An OLED screen enables on-site data display, while an ESP-01S Wi-Fi module uploads collected data to a mobile APP, allowing remote timing configuration, device control and threshold adjustment. Test results indicate that the system features high measurement accuracy, fast response and stable operation, and can greatly improve the management efficiency of aquarium environments. With low cost, compact size and easy deployment, this system offers an intelligent solution for household aquarium maintenance and small-scale aquaculture applications.