MODEL AND SIMULATION OF SMART DOORLOCK SYSTEM USING RADIO FREQUENCY IDENTIFICATION BASED ON MICROCONTROLLER

Abstract
This study aims at the application of Radio Frequency Identification (RFID) used on the door. The
RFID used is based on Arduino Uno and is integrated with the Mifare RC-522 RFID reader. The aim is
to create a safety device and automatic door opener that can practically increase the feeling of
security and comfort in opening the door of the house, without having to use various keys which
may be very inconvenient. The method used is the waterfall, with research stages carried out
problem identification, system analysis, system design, tool assembly program coding, and system
testing. The results show that when the RFID tag is brought closer to the RFID reader, the door
opens. Then, when the RFID tag used is not appropriate, the buzzer will sound. The reading distance
of each RFID tag by the RFID reader is 4 cm. In addition, objects or barrier media between the RFID
tag and the RFID reader also determine the success of data reading. The key used is a selenoid
doorlock with the help of a relay.