Rancang Bangun Sistem Pembayaran Contactless Berbasis Smartcard dengan Teknologi RFID pada Stasiun Pengisian Daya Ponsel Genggam Menggunakan Panel Surya

Abstract

Along with the development of communication technology, the demand for mobile phone charging is increasing, especially in open areas, tourist attractions, parks, and beaches. However, the payment aspect in SPDPG is still a challenge. The payment system is a mechanism for individual businesses or organizations to conduct financial transactions safely, efficiently, and effectively. Cash or other conventional payment methods are often less efficient and vulnerable to security issues. Contactless is a payment technology without physical contact between a card or device and a payment terminal that uses radio frequency communication. Smartcard is a smart card equipped with a microprocessor and memory to store and process data. This study aims to design and build a contactless payment system based on smartcards with Radio Frequency Identification (RFID) technology at mobile phone charging stations that use solar panels as the main energy source. RFID technology is used to conduct contactless payment transactions, where users simply attach the smart card to the sensor to access the charging service. The designed system consists of main components in the form of an RFID smartcard, RFID reader, MOSFET IRF520 as a power control, a USB module that supports fast charging and Arduino Uno as a microcontroller. The test results show that the system can function well in reading RFID card data, processing transactions, and activating charging according to the service time selection. Thus, this system is an innovative and sustainable solution to meet the needs of charging mobile phones practically, safely, and environmentally friendly.