Sistem Monitoring Dan Visualisasi Data Konsumsi Energi Listrik Rumah Berbasis IoT Dengan Aplikasi Blynk

Abstract

Household electricity consumption continues to increase, but monitoring of electricity use is still limited to the KwH meter which only shows the total usage without real-time details. This research aims to design an Internet of Things (IoT)-based electrical energy consumption monitoring system with the Blynk application as a data visualization medium. The system is designed using a PZEM-004T sensor to measure voltage, current, and power, as well as a ESP8266 NodeMCU microcontroller to transmit data to the Blynk application over a WiFi connection. System testing is carried out using the black box method to evaluate the functionality of each feature without looking at internal processes. The test results showed that the system can display electricity consumption data in real-time, work stably, and allow remote monitoring via smartphone. The system also helps users recognize electricity usage patterns, supports decision-making in energy savings, and provides historical data for long-term usage evaluation.