Design of a Wearable Membership ID for the Fitness Center

The development of technology has brought major changes in aspects of life, including in the field of sports and fitness. Internet of Things (IoT) technology can improve efficiency and experience for users. Many fitness centers in Indonesia have several problems, such as fitness managers having difficulty distinguishing which member still has active memberships and which have expired ones while they are accessing the gym. The problems occur due to still adopting a manual system in terms of managing membership, granting access rights, and supervision. Therefore, this study designs and develops an integrated system that has a wearable membership ID using an nRF24 transceiver and an IoT-based Master Device to overcome these problems. The results of this work show a fully developed system that allows online registration, solid data management, seamless access granting, and real-time user safety monitoring. The performance of the system has 100% accuracy around 65 meters of Line of Sight (LOS) coverage in distinguishing between active and expired membership for access granting, which is good for improving the quality of service and the overall member experience in the future application.