EV Smart Charger

PCB
IoT
Spring 2025

This project aims to design and implement an affordable level two electric vehicle (EV) charger with smart features that enhance safety, usability, and remote control. The charger operates at 250VAC and supports up to 20A, making it suitable for residential use. One of the primary goals is to provide users with the ability to remotely start and stop charging through an intuitive graphical user interface. The system is built around an ESP32-C3 microcontroller, with built-in Wi-Fi capabilities and low power consumption. The charger is enclosed in a polycarbonate housing rated IP67 for water resistance and IK10 for impact resistance, ensuring long-term outdoor durability. To simulate real-world charging conditions, four space heaters were used as a load, distributing 5 kW across two phases to mimic an EV charge port. Notable accomplishments include the successful integration of high-voltage safety features and a fully functioning wireless interface. Future improvements could include the addition of energy monitoring features, scheduling support, and tighter PCB integration to further reduce size and cost.

2 Lifts 

Artifacts

Name Description
Executive Summary Covers our project scope, team approach, and the stages of the design process.   Download
Project Document In detail explanation of the project. Covers rational behind the project, design choices made, impacts of the project, and a high level look at the inner workings of the project.   Download
Project Poster General overview of the project. Designed for getting a quick snapshot of the project.   Download
Project Summary Video A video that summarizes our project and discusses the design in detail.   Link
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