WILLIAM PARULIAN PASARIBU, NPM 2208100103 (2026) SISTEM PENGAMAN LACI KASIR OTOMATIS PADA GROSIR H. UDIN MENGGUNAKAN NOTIFIKASI WHATSAPP. Skripsi thesis, Universitas Labuhanbatu.
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Abstract
Keamanan laci kasir merupakan salah satu aspek penting dalam menjaga aset dan hasil transaksi pada sebuah usaha. Sistem pengamanan laci kasir yang masih menggunakan kunci konvensional memiliki kelemahan karena mudah diduplikasi, hilang, maupun dibuka secara paksa tanpa adanya pemberitahuan kepada pemilik. Penelitian ini bertujuan untuk merancang dan membangun sistem pengaman laci kasir otomatis berbasis Internet of Things (IoT) yang mampu meningkatkan keamanan melalui autentikasi RFID serta memberikan notifikasi menggunakan aplikasi WhatsApp. Metode penelitian yang digunakan adalah metode Waterfall yang meliputi tahapan analisis kebutuhan, perancangan sistem, implementasi, pengujian, dan pemeliharaan. Sistem dibangun menggunakan mikrokontroler ESP32 sebagai pusat kendali, modul RFID RC522 sebagai media autentikasi pengguna, solenoid door lock sebagai pengunci elektronik, magnetic switch sebagai pendeteksi pembukaan paksa, relay sebagai pengendali aktuator, buzzer sebagai alarm, serta WhatsApp sebagai media pengiriman notifikasi kepada pemilik toko. Hasil penelitian menunjukkan bahwa sistem berhasil diimplementasikan dan seluruh komponen bekerja sesuai dengan fungsinya. RFID mampu membaca kartu yang telah terdaftar dengan baik sehingga hanya pengguna yang memiliki hak akses yang dapat membuka laci kasir. Buzzer berhasil memberikan peringatan ketika kartu yang digunakan tidak dikenali oleh sistem. Sensor magnetic switch mampu mendeteksi pembukaan laci secara paksa dan mengirimkan notifikasi kepada pemilik melalui WhatsApp dengan rata-rata waktu pengiriman sekitar 60 detik. Berdasarkan hasil pengujian, sistem yang dikembangkan mampu meningkatkan keamanan laci kasir serta memberikan kemudahan kepada pemilik toko dalam melakukan pemantauan secara jarak jauh. Kata Kunci: Internet of Things (IoT), ESP32, RFID RC522, Keamanan Laci Kasir, WhatsApp ============================================== Cash drawer security is one of the important aspects of protecting assets and transaction revenues in a business. Conventional cash drawer security systems that still use mechanical keys have several weaknesses because the keys can be easily duplicated, lost, or forcibly opened without notifying the owner. This study aims to design and develop an Internet of Things (IoT)-based automatic cash drawer security system that is capable of improving security through RFID authentication and providing notifications via the WhatsApp application. The research method used in this study is the Waterfall method, which consists of the stages of requirements analysis, system design, implementation, testing, and maintenance. The system was developed using an ESP32 microcontroller as the main controller, an RFID RC522 module for user authentication, a solenoid door lock as the electronic locking mechanism, a magnetic switch to detect forced opening attempts, a relay to control the actuator, a buzzer as an alarm, and WhatsApp as the notification platform for the store owner. The results of this study indicate that the system was successfully implemented and that all components functioned according to their intended purposes. The RFID module successfully detected registered RFID cards, allowing only authorized users to access the cash drawer. The buzzer was activated whenever an unregistered card was detected by the system. The magnetic switch successfully detected forced opening attempts and sent notifications to the store owner via WhatsApp with an average delivery time of approximately 60 seconds. Based on the testing results, the developed system is capable of improving the security of the cash drawer while providing convenience for the store owner in remotely monitoring the security system. Keywords: Internet of Things (IoT), ESP32, RFID RC522, Cash Drawer Security, WhatsApp
| Item Type: | Thesis (Skripsi) |
|---|---|
| Uncontrolled Keywords: | Internet of Things (IoT), ESP32, RFID RC522, Keamanan Laci Kasir, WhatsApp===============Internet of Things (IoT), ESP32, RFID RC522, Cash Drawer Security, WhatsApp |
| Subjects: | Q Science > QA Mathematics > QA75 Electronic computers. Computer science Q Science > QA Mathematics > QA76 Computer software T Technology > T Technology (General) Z Bibliography. Library Science. Information Resources > Z665 Library Science. Information Science Z Bibliography. Library Science. Information Resources > ZA Information resources > ZA4450 Databases |
| Divisions: | Fakultas Sains Dan Teknologi > Teknologi Informasi |
| Depositing User: | Unnamed user with email repository@ulb.ac.id |
| Date Deposited: | 16 Oct 2026 08:34 |
| Last Modified: | 16 Oct 2026 08:34 |
| URI: | http://repository.ulb.ac.id/id/eprint/2916 |
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