Wireless EV Charging Vehicles Station with QR Code for Live Charging Status: A Review

Abstract

This project presents the development of a Wireless EV Charging Station with QR Code for Live Charging Status, designed to provide an innovative, secure, and user-friendly charging solution for electric vehicles (EVs). The system leverages Arduino Nano for controlling core components, including an RFID module for vehicle authentication, IR sensors for vehicle detection, and a servo motor (SG90) for automated gate control. Wireless power transfer is facilitated through a charging coil, enabling efficient charging of a 4V in-vehicle battery. Real-time monitoring of charging parameters, such as voltage and current, ensures safe and optimized energy delivery. The ESP32 microcontroller enables seamless wireless communication with a mobile app, allowing users to remotely monitor the charging status. The integration of a 0.96-inch OLED display generates a dynamic QR code, providing users with easy access to advanced features on the app. Power regulation is managed via a single-channel relay module, while a 5V DC adaptor ensures continuous operation. This project addresses critical needs in the growing EV ecosystem, offering a sustainable, efficient, and contactless charging experience for users.

Introduction

The rapid growth of electric vehicles (EVs) is driving the need for efficient, secure, and user-friendly charging infrastructure. Traditional EV charging stations, which rely on physical connections and manual processes, face challenges such as wear and tear, security vulnerabilities, user inconvenience, and lack of real-time monitoring.

To address these issues, the project proposes a Wireless EV Charging Station with QR Code-Based Live Charging Status, integrating wireless charging, IoT technology, and automated systems. It uses components like Arduino Nano, ESP32, RFID modules, IR sensors, and servo motors to enable features such as:

• Contactless wireless charging

• RFID-based vehicle authentication

• Automated gate control

• Real-time monitoring of voltage, current, and charging status

• QR code generation to link users to a mobile app for live updates

This system enhances user convenience, security, and operational efficiency by eliminating the need for physical connectors and manual interaction. It also contributes to environmental sustainability by promoting cleaner, energy-efficient transportation.

Problem Identification

1. Wired dependency causes wear, damage, and user inconvenience.

2. Manual interaction is cumbersome, especially in adverse conditions.

3. Security flaws due to lack of authentication.

4. No real-time monitoring, leading to inefficiency.

5. Lack of automation reduces usability and convenience.

Need for the System

• Replace cables with wireless charging for durability.

• Offer a contactless and automated user experience.

• Improve security via RFID authentication.

• Provide real-time charging data to users.

• Automate processes like gate control and power regulation.

Objectives

1. Create a secure, wireless, and automated EV charging solution.

2. Enhance user convenience through mobile-based monitoring.

3. Ensure energy efficiency and system safety.

4. Promote eco-friendly, smart transportation infrastructure.

Literature Review

Research supports:

• Wireless charging (WPT/IPT) for improved convenience and reduced maintenance.

• RFID and blockchain for secure access and authentication.

• IoT and cloud platforms for real-time data monitoring and predictive maintenance.

• AI and data analytics to optimize charging behavior and energy management.

• The combination of IoT, AI, cloud computing, and smart grids enhances system performance, efficiency, and user experience.

Research Gap

Despite advancements in wireless and smart EV charging, gaps remain:

• Overreliance on wired infrastructure.

• Limited integration of RFID + IoT + wireless charging.

• Lack of QR code-based mobile interfaces for live charging status.

• Inadequate focus on compact, low-voltage wireless solutions for small EVs.

Conclusion

The \"Wireless EV Charging Station with QR Code for Live Charging Status\" presents an innovative and practical solution to the growing demands of electric vehicle (EV) infrastructure. By replacing conventional wired systems with a wireless charging mechanism, the project eliminates the inconvenience of handling charging cables and reduces maintenance due to wear and tear. The integration of RFID-based authentication ensures only authorized vehicles can access the system, enhancing security and control. IR sensors and a servo motor automate vehicle detection and gate operation, providing a seamless user experience. The Arduino Nano coordinates hardware functions, while the ESP32 microcontroller enables real-time data transmission via Wi-Fi to an Android app, allowing users to monitor charging status remotely.

References

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Copyright

Copyright © 2025 Ms. Vaishnavi S. Narule , Prof. Heena S. Sheikh. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.