One of the main aims of this project is to introduce intelligence to the system. This is done by proposing an IoT-based smart off-board charger. It mainly consists of a mobile app to enable the user to send commands, a microcontroller to process and execute those commands, different sensors to monitor the charger, and an actuator for the controlling actions.

The physical elements of the proposed IoT-based EV chargers are:

• Microcontroller: ESP32 Development Board
• Sensors: temperature, voltage, and current sensors
• Actuators: a relay

The mentioned physical components are connected to a mobile application via an internet cloud server. This is achieved by using the Android Studio program and Firebase cloud platform. Android Studio is the official IDE for android apps development, which provides advanced features to improve productivity. The cloud platform used is the Firebase platform, which supports both Arduino and Android Studio programs as well as other programs providing easy access, and for this reason, it is selected in this project. It also provides many useful tools, such as a real-time database that helps monitor real-time data and provide quick control over the system. The elements used to develop the software part of the system are:

• Microcontroller Programming: Arduino IDE
• Internet Cloud: Firebase Cloud
• Mobile App: Android Studio

Mobile Application Design:

The mobile application has a homepage to enable the user to go to monitoring or controlling pages. The monitoring page displays the voltage, current, and temperature data. Lastly, the controlling page enables the user to turn on/off the charging process.

 

 

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