Design and Implementation of a Coin-Based WiFi System for Coffee Shops or Cafés
DOI:
https://doi.org/10.32664/smatika.v15i02.2035Keywords:
Café or Coffee Shop, Coin Sensor, Raspberry Pi, Speed Test, SQLite, Star Topology, WiFi Coin.Abstract
The need for fast, stable, and affordable internet access is increasing along with the increasing dependence of society on information technology, especially in small business environments such as coffee shops and cafes. However, the operational costs of internet services are still a major challenge for micro-business owners. This study aims to design and implement a coin-based WiFi system that is independent, cost-effective, and easy to operate. This system integrates a coin sensor, microcontroller, and Raspberry Pi to detect coin denominations (Rp500 and Rp1000), automatically converts them into WiFi access duration, and records transactions in a local SQLite-based database. The web-based interface is built using Flask for ease of system administration and management. The research methods include literature studies, field observations, user interviews, and technical testing of sensor accuracy and network performance. Evaluations are carried out on download/upload speeds, latency, jitter, and packet loss to assess connection quality. The test results show that the system is able to detect coins with high accuracy and provide stable internet services according to the payment duration. The advantages of this system lie in its independence that does not depend on third-party applications, as well as its ability to be implemented in environments with technological and budget constraints. This system has the potential to be a viable alternative solution to expand internet access in the informal sector and drive digital transformation at the grassroots level.
References
[1] R. Riyan, S. Pramono, and S. Romadhona, “Implementasi Jaringan Hotspot Dengan Sistem Koin Menggunakan Raspberry Pi Dirumah Makan UMI,” Jurnal Riset Rekayasa Elektro, vol. 4, no. 2, p. 67, 2023, doi: 10.30595/jrre.v4i2.15749.
[2] M. Amrullah and D. Wijayanto, “Manajemen bandwidth menggunakan mikrotik routerboard untuk optimalisasi layanan wifi koin ( Meeting , Browsing , dan YouTube ) Bandwidth Management Using Mikrotik Routerboard to Optimize Koin WiFi Services ( Meeting , Browsing , and YouTube ),” vol. 2, no. September, pp. 1410–1417, 2024.
[3] B. M. SABILLI, “Rancang bangun sistem sewa wifi dengan koin berbasis android,” 2022.
[4] R. Muzawi and W. J. Kurniawan, “Penerapan Internet of Things (IoT) Pada Sistem Kendali Lampu Berbasis Mobile,” J-SAKTI (Jurnal Sains Komputer dan Informatika), vol. 2, no. 2, p. 115, 2018, doi: 10.30645/j-sakti.v2i2.75.
[5] A. L. Mufti, “Membangun RT / RW Net Dengan Titik Pointing Antar Wilayah Building RT / RW Net with Points Pointing Between Regions,” vol. 12, no. 2, pp. 1–12, 2022.
[6] U. Albab, Qirom, Bahrun Niam, Rozin Arkan, and Muhammad Faruq Elhaq, “Peningkatan Pengetahuan Penggunaan Raspberry Pi Sebagai Sistem Kontrol Perangkat dan Monitoring Data Sensor Berbasis IoT di SMK N 1 Brebes,” JURPIKAT (Jurnal Pengabdian Kepada Masyarakat), vol. 4, no. 2, pp. 1–8, 2023, doi: 10.37339/jurpikat.v4i2.1252.
[7] J. D. Prasetya and A. Firdonsyah, “Optimasi desain PCB untuk sistem Wi-Fi Coin pada PT SaranaInsan MudaSelaras dengan metode layout optimization PCB design optimization for Wi-Fi Coin system at pt SaranaInsan MudaSelaras with layout optimization method,” vol. 3, pp. 1042–1047, 2025.
[8] O. Dan Pemantauan and st Frizqi Vandio, “Implementasi Raspberry Pi Pada Sistem,” vol. 11, no. 2, p. 1195, 2024.
[9] N. Alfina, M. S. Lamada, H. Jaya, and S. Gunawan, “Analisis Pengukuran Kualitas Jaringan Menggunakan Raspberry Pi 4 Sebagai Network Tester,” vol. 0, pp. 16–35.
[10] R. A. C. Dirja Nur Ilham, “ANALISIS CELAH KEAMANAN JARINGAN KOMPUTER DENGAN Dirja Nur Ilham , 2 Rudi Arif Candra,” Jurnal Manajemen Informatika & Komputerisasi Akuntansi, vol. 2, no. 2, pp. 140–147, 2018.
[11] F. Muftie, “Penerapan Konsep Finite State Automata Pada Unit Usaha Wifi Koin Vending Machine,” JIKO (Jurnal Informatika dan Komputer), vol. 5, no. 1, pp. 28–37, 2022, doi: 10.33387/jiko.v5i1.3773.
[12] J. Co, G. Duran, and C. Sabate, “Raspberry Pi 2 Platform for Coin-operated WiFi HotSpot Kiosk,” Imperial Journal of Interdisciplinary Research (IJIR, vol. 2, no. 12, pp. 379–382, 2016.
[13] A. D. Disastra and M. R. Hidayat, “Analisis Kualitas Jaringan Wifi.Id Pada Kopi Janji Jiwa Cijerah Berdasarkan Parameter Qos (Quality of Service),” Jurnal Teknik (JT), vol. 13, no. 01, pp. 12–19, 2024.
[14] E. P. Saputra, A. Saryoko, M. Maulidah, N. Hidayati, and S. Dalis, “Analisis Quality of Service (QoS) Performa Jaringan Internet Wireless LAN PT. Bhineka Swadaya Pertama,” EVOLUSI : Jurnal Sains dan Manajemen, vol. 11, no. 1, pp. 13–21, 2023, doi: 10.31294/evolusi.v11i1.14955.
[15] M. Risky and S. Dwiasnati, “Penilaian Kualitas Quality of Service Jaringan Internet WLAN PT. Solid Fintek Indonesia,” Jurnal Teknik Informatika dan Sistem Informasi, vol. 11, no. 4, pp. 145–156, 2024.
[16] A. Tedyyana, “Penerapan Metode Quality Of Service (Qos) Untuk Menganalisa Kualitas Jaringan Studi Kasus Politeknik Negeri Bengkalis (Studi Kasus : Politeknik Negeri Bengkalis) Agung Kurniawan 1 ,” no. November, pp. 47–52, 2024.
[17] O. Westerlund and R. Asif, “Drone Hacking with Raspberry-Pi 3 and WiFi Pineapple: Security and Privacy Threats for the Internet-of-Things,” 2019 1st International Conference on Unmanned Vehicle Systems-Oman, UVS 2019, no. c, 2019, doi: 10.1109/UVS.2019.8658279.
[18] B. Jung, “Implementation of portable WiFi extender using Raspberry Pi,” Journal of Industrial Convergence, vol. 20, no. 1, pp. 63–68, 2022, doi: 10.22678/jic.2022.20.1.063.
[19] S. Suroso, C. Ciksadan, and C. Choirunnisa, “Analisis Quality of Service Jaringan Wireless Local Area Network di PT PLN Indonesia Comnets Plus Strategic Business Unit Regional Sumbagsel,” Jurnal Teknologi Sistem Informasi dan Aplikasi, vol. 6, no. 2, pp. 202–213, 2023, doi: 10.32493/jtsi.v6i2.32246.
[20] V. Vujović and M. Maksimović, “Raspberry Pi as a Wireless Sensor node: Performances and constraints,” 2014 37th International Convention on Information and Communication Technology, Electronics and Microelectronics, MIPRO 2014 - Proceedings, no. June, pp. 1013–1018, 2014, doi: 10.1109/MIPRO.2014.6859717.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 SMATIKA JURNAL
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
The writer agreed that the article copyright by Smatika journal and the writer has the right to disseminate the paper published without permission in advance.
