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The Smart Energy Meter Using ESP32 is an IoT-enabled prototype for monitoring electrical energy consumption. Voltage and current sensors provide measurement signals to the ESP32, which processes the data and calculates electrical quantities such as voltage, current, power and energy consumed in kilowatt-hours (kWh). The readings can be shown on a 16×2 LCD. Using the ESP32 built-in Wi-Fi, data can also be transmitted to the Blynk IoT platform for viewing on a mobile dashboard. The platform may be configured to provide notifications when a selected parameter crosses a predefined limit. The system aims to make electricity use easier to observe and support energy conservation.
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Mali et al. (2026) studied this question.
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