Implementasi Sistem Presensi Siswa Real-Time Berbasis Kartu Identitas RFID dengan Notifikasi WhatsApp Gateway untuk Meningkatkan Disiplin dan Pengawasan Orang Tua (Studi Kasus: SDN 1 Saronggi)

Abstract

SDN 1 Saronggi still applies manual attendance recording, in which the teacher calls each student's name one by one at the beginning of every lesson. This method is time-consuming, prone to recording errors, and prevents parents from directly monitoring their children's attendance. This study aims to build a web-based student attendance system that uses Radio Frequency Identification (RFID) technology as an automatic, real-time attendance input tool, and to integrate it with WhatsApp Gateway notifications for parents. The development method applied is User Centered Design (UCD), consisting of four stages: understanding the user context, defining user needs, designing solutions, and evaluating the design. The system was built using the PHP programming language, a MySQL database, and RFID RC522 microcontroller hardware. System testing was carried out using the Blackbox Testing method to verify functionality and the System Usability Scale (SUS) method to measure ease of use. SUS testing involving 30 respondents produced an average score of 76.42, which falls into category B (Good) and exceeds the minimum target score of 75 set in the research hypothesis. The implementation of this system is able to improve the accuracy of attendance data, accelerate the recapitulation process, and support real-time parental supervision through automatic WhatsApp notifications.