Design and Implementation of an IoT-Based Household Electricity Monitoring and Control System with Auto Cut-Off and Data Logger Features

Muhammad Ramadhan; Ahmad Rofiq Hakim; Fara Triadi

doi:10.59934/jaiea.v6i1.2615

Authors

Muhammad Ramadhan State Polythechnic of Samarinda
Ahmad Rofiq Hakim State Polythechnic of Samarinda
Fara Triadi State Polythechnic of Samarinda

DOI:

https://doi.org/10.59934/jaiea.v6i1.2615

Keywords:

auto cut-off, Data logger, ESP32, Internet of things, Smart energy monitoring

Abstract

The growing demand for household electricity frequently leads to energy waste and overload risks. This study presents the design and implementation of an IoT-based Smart Energy system employing the ESP32 DevKit V1 microcontroller as the central controller. The system integrates an ACS758 current sensor, a ZMPT101B voltage sensor, an RTC DS3231 module, and a MicroSD card for timestamped historical data logging. Overload protection is achieved through a relay and a Miniature Circuit Breaker (MCB) that automatically disconnects the power supply when the load exceeds the configured threshold. The research adopts a Research and Development (R&D) methodology encompassing problem identification, system design, implementation, testing, and evaluation. Test results demonstrate that the system reliably monitors voltage, current, power, and energy consumption in real-time, records data to the SD card with accurate timestamps, and executes the auto cut-off function effectively. Comparative testing against a calibrated multimeter produce an average measurement error below 5.5%, confirming the system's suitability for household-scale energy monitoring applications.

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