IoT Enabled Power Monitoring Device

Abstract

In this paper, an IoT enabled power monitoring device is presented and discussed. The device enable user to determine the energy usage for each electrical appliance. The device hardware consists of NodeMCU DevKit v3.0, split core current transformer (CT), OLED display. C/C++ language is used programmed the device through Arduino IDE and ThingSpeak web server to record and display the power consumption and the usage cost. During measurement, the device has an average of 4.04 % of current (A) error percentage compare to the measured industrial clamp meter especially for high power electric appliances. The device is also capable for power consumption cost calculation whether hourly or daily.