Abstract
Nowadays, the development of application-based information systems encourages people to innovate using the Internet of Things (IoT) as a means of monitoring in real-time. In addition, with practical, economical and time-efficient reasons, forcing users to switch from conventional to smartphone-based technology. In this paper, online measurements were tested on the 1 kWp Photovoltaic (PV) system at the Electrical Engineering Laboratory (EEL) of the Faculty of Engineering (FoE), Universitas Jenderal Achmad Yani (UNJANI) using the NodeMCU ESP8266 microcontroller with wireless sensor networks displaying current, voltage, and PV power on the screen of the Blynk android application. The collection of data transferred into the smartphone CSV form and can take the data using a cloud server for reporting purpose. The system will generate automatic reports and verification can be done using data retrieval offline via SD Card.
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