Design and Development of an IoT-Based Monitoring System for Solar Phone Charging Stations.

Authors

  • Anita Yuan Universitas Kristen Immanuel
  • Rivaldo Saputra
  • Rutnaria S.S. Sakoikoi

Keywords:

Internet of Things (IoT), Monitoring, Photovoltaic, Arduino Mega, ThingSpeak

Abstract

In recent decades, sustainability and renewable energy utilization have become major global concerns. Solar energy, harnessed through photovoltaic (PV) technology, is one of the most promising sources, with charging stations as a practical application. To ensure system efficiency and stability, a reliable real-time monitoring system is required. This study designed and implemented an IoT-based monitoring system for a Solar Phone Charging Station. The system employs an Arduino Mega 2560 as the main processor, NodeMCU ESP8266 for internet connectivity, and sensors including a 0–25 V voltage sensor, ACS712 current sensor, and DHT11 temperature and humidity sensor. Data are transmitted and visualized in real time using the ThingSpeak platform. Experimental results demonstrate that the system performs effectively in capturing and transmitting data. However, limitations remain, such as sensor reading errors, dependence on internet connectivity and solar-powered batteries, and relatively high error rates in current, temperature, and humidity measurements, indicating the need for improved calibration and validation.

Author Biographies

Rivaldo Saputra

In recent decades, sustainability and renewable energy utilization have become major global concerns. Solar energy, harnessed through photovoltaic (PV) technology, is one of the most promising sources, with charging stations as a practical application. To ensure system efficiency and stability, a reliable real-time monitoring system is required. This study designed and implemented an IoT-based monitoring system for a Solar Phone Charging Station. The system employs an Arduino Mega 2560 as the main processor, NodeMCU ESP8266 for internet connectivity, and sensors including a 0–25 V voltage sensor, ACS712 current sensor, and DHT11 temperature and humidity sensor. Data are transmitted and visualized in real time using the ThingSpeak platform. Experimental results demonstrate that the system performs effectively in capturing and transmitting data. However, limitations remain, such as sensor reading errors, dependence on internet connectivity and solar-powered batteries, and relatively high error rates in current, temperature, and humidity measurements, indicating the need for improved calibration and validation.

Rutnaria S.S. Sakoikoi

In recent decades, sustainability and renewable energy utilization have become major global concerns. Solar energy, harnessed through photovoltaic (PV) technology, is one of the most promising sources, with charging stations as a practical application. To ensure system efficiency and stability, a reliable real-time monitoring system is required. This study designed and implemented an IoT-based monitoring system for a Solar Phone Charging Station. The system employs an Arduino Mega 2560 as the main processor, NodeMCU ESP8266 for internet connectivity, and sensors including a 0–25 V voltage sensor, ACS712 current sensor, and DHT11 temperature and humidity sensor. Data are transmitted and visualized in real time using the ThingSpeak platform. Experimental results demonstrate that the system performs effectively in capturing and transmitting data. However, limitations remain, such as sensor reading errors, dependence on internet connectivity and solar-powered batteries, and relatively high error rates in current, temperature, and humidity measurements, indicating the need for improved calibration and validation.

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Published

2025-09-17

How to Cite

[1]
A. Yuan, R. Saputra, and R. S. Sakoikoi, “Design and Development of an IoT-Based Monitoring System for Solar Phone Charging Stations”., IIJC, vol. 9, no. 02, pp. 87–94, Sep. 2025.