IoT Based Digital Wattmeter

Intelligent power measurement strategy for cost optimization. This paper gives idea about Arduino based power measurement for residential homes, using multidisciplinary concepts in electronics. The system features real time demand side management using composite design methodology (CDM). It comprises the metering and cloud server cluster units. The work introduced current sensing and voltage sensing element circuit, Arduino nano (with ATmega328 chipset), and ESP8266 to achieve the system functionalities. The design description on editor run-time environment enabled direct debugging in the open source Integrated Development Environment (IDE). The approach is evaluated through selected case studies and usability experiments. With the latter, the suitability of the system provided an efficient means of monitoring power measurement with minimal errors. The results showed that when the device is switched-on with no load, an output of 0.00kW was read. By connecting load to it, an output of 4.3kW was then observed on the cloud thingspeek(real time). The output kept increasing even as the load is connected to different load as expected. Utilities can smartly provide value-added services using the system, thereby increasing the system reliability through cloud.