<p>➀ The project demonstrates an IoT-based metro ticketing system using RFID cards for fare management and balance updates；</p><p>➀ Involves two main devices: a card recharge module (managed by staff) and entry/exit scanners with real-time IoT dashboard monitoring；</p><p>➁ Utilizes IndusBoard Coin microcontrollers and RC522 RFID modules, supporting web-based balance tracking and automated gate control via servo motors.</p>