Inernet of Things-based Photovoltaics Parameter Monitoring System Using NodeMCU

Photovoltaic (PV) system is extensively used recently due to its benefits and to support green technology. The photovoltaic recording system is considered a crucial aspect to observe the efficiency of the PV solar panels. However, there has been no recording or monitoring device to ensure the continuous functionality of the PV system. Hence, this project focuses on developing a parameter for the recording system to overcome this problem. By using the recording system, users are allowed to monitor their photovoltaic solar panels output (voltage) in real-time through the Internet of Things (IoT) method. The recorded values from the developed sensors can be continuously stored and updated in the cloud service. The system consisted of sensors, each for measuring voltage values, and temperature. Node MCU microcontroller was chosen as the open-source IoT platform Data processed by the microcontroller Node MCU were displayed on the dashboard of the Adafruit IO cloud service webpage. The dashboard showed the output of voltage obtained from the solar panel, the voltage output from the rechargeable battery and the environment temperature surrounding the PV solar panels. From the photovoltaic recording system, the efficiency of the developed system and other factors that contributed to the malfunction in the solar system can be recorded.