A smart energy monitoring system using ESP32 microcontroller

•design a monitoring system that provides real-time information to consumers on an hourly, daily, and monthly basis, helping them make informed decisions about their energy consumption.•Design a low-cost IoT energy monitoring system that utilizes an ESP32 microcontroller to retrieve data from energy power counters, analyze the data, and send information to end-users via the WhatsApp application.•establish a secure connection with the Blynk platform through a Wi-Fi network, ensuring data transmission safety.•developed energy monitoring system successfully records voltage, current, active power, and accumulative power consumption, and sends this information to consumers in real-time.•enable consumers to track their energy consumption effectively, assisting them in making informed decisions about their usage levels and potentially optimizing their energy management practices.