RFID Based Ticket Verification Machine

In this project, a ticket-verification system is developed using the Arduino Mini microcontroller, an RFID reader module and a 16×2 (or similar) LCD display. When a user presents an RFID tag, the reader reads the unique ID, which the Arduino checks against a stored list of valid tickets. If the ticket is valid, the LCD displays a confirmation and the system marks the ticket as used; if invalid or duplicate, the system displays a rejection. This automated system replaces manual ticket checking, improves speed and accuracy, and reduces human error in access control scenarios. The system hardware uses the RFID reader connected at Arduino Mini digital pins 6 and 7, while the LCD is interfaced via I²C (SDA/SCL) to minimize wiring. The firmware handles tag reading, validation, and display output. The practical application can be in ticketed events, public transport boarding, stadium access or other entry‐control scenarios. The result is a low-cost, efficient, and scalable ticket verification system that can be extended to logging, networking, and remote monitoring.