#Project Overview

UPI-Based EV Charging Station

Led the design and system integration for a localized UPI (Unified Payments Interface) smart EV Charging Station at Mysuru Green Technologies. I designed the human-machine interface (HMI) code flow and integrated payment confirmation API hooks directly into the embedded microcontroller firmware.

During operation, when a user scans the dynamically generated QR code on the charging station's display, the controller polls the payment gateway over secure HTTP connections. Once verified, the MCU fires solid-state relays to supply power to the vehicle, monitoring current rates to calculate real-time charge sessions.

Dynamic QR Code generation on local LCD displays

Real-time payment gateway confirmation polling

Over-current and thermal load shutdown protection layers

High-voltage switching relay architecture