Smart Geyser System for Real-Time Temperature Monitoring and Remote Control

Abstract

This project presents an IoT-based Smart Geyser Monitoring and Control System aimed at improving energy efficiency, user convenience, and safety in domestic water heating applications. The system is developed using an ESP32 microcontroller integrated with a temperature sensor, Wi-Fi communication module, relay-based geyser control, LCD display, keypad interface, and buzzer alert mechanism. The system continuously monitors water temperature and displays real-time values on the LCD screen. It operates in both automatic and manual modes. In automatic mode, the geyser is controlled based on a user-defined temperature threshold, where the relay switches the geyser ON or OFF according to the sensed temperature. In manual mode, users can remotely control the geyser through IoT-based HTTP communication and cloud connectivity. The system also uploads temperature readings and operational status to an online server for remote monitoring and analysis. A buzzer alert is activated whenever the temperature exceeds a predefined safety limit. The proposed system reduces unnecessary power consumption, enhances operational safety, and provides remote accessibility, making it a cost-effective and user-friendly solution for modern smart home environments.