RFID Dual Card Servo Control Project with Alarm

Dual RC522 RFID Arduino Servo Access Control System This dual RFID servo control system is a complete DIY security project using two RC522 RFID modules and dual Arduino boards. It allows independent card-based access where valid cards rotate servo motors from 0° to 90°, and invalid cards trigger a buzzer alarm. Ideal for door lock systems, parking control, school gates, office access, and smart security projects. Specifications RFID Module: 2x RC522 RFID Reader Controller: Arduino Uno + Arduino Nano Servo Motor: 2x MG90S Metal Gear Servo (180°) Control System: Dual card-based independent control Alarm System: Buzzer for invalid card detection Power Supply: 2x 18650 Li-Ion 3.7V Battery Battery Holder: Dual 18650 Battery Case Voltage Conversion: LM2596 Buck Converter (Step-down to 5V) Switch: 6 Pin Slide Switch (50V 0.5A DPDT) Communication: Arduino Nano to Arduino Uno signal control Wiring: Slim Flexible Project Wire Cable Cable Management: Nylon Cable Zip Ties