Cashless Payment System Using RFID with NRF24L01 Communication

The cashless payment system has become one of the people's favorite choices because of the various benefits and conveniences that are obtained. One of the media that is often used today for transactions is an RFID card that contains several data. With only one media RFID card, we can do a lot of things as long as the data is centralized. This research aims to combine Internet of Things technology with payment applications that are generally used on the cashier side of shopping centers. The results of this research show that the system built is quite reliable to be used in communication lines with a range of fewer than 12 meters in a walled room and a distance of fewer than 60 meters outdoorsFile size after encrypting