ESP32-Based Smart System with Energy Monitoring and Scheduling via Android App for Industrial Applications

– The rapid increase in energy consumption and the need for efficient utilization of electrical appliances have motivated the development of smart energy management systems. This paper presents an ESP32-based smart system integrating IoT technology for real-time energy monitoring, automated load control, and safety management in industrial applications. The system uses a PZEM-004T module to measure voltage, current, power, and energy consumption; a DS18B20 temperature sensor for environmental monitoring; MQ135 gas sensor and flame sensor for hazard detection; and relay modules for controlling AC loads. All monitored parameters are transmitted to the Blynk IoT cloud platform and accessed remotely via an Android application, enabling manual control, scheduling, and instant alerts during abnormal conditions. Results demonstrate reliable fire and gas detection, overload protection, and remote appliance control. The proposed system offers improved energy efficiency, enhanced safety response, and a cost-effective solution for industrial automation.