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All Journal Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Engagement: Jurnal Pengabdian Kepada Masyarakat
Triandes Sinaga
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Digitalizing MSME Financial Recording in Medan: The Development and Implementation of a User-Centered POS System Barus, Okky Putra; Maulana, Ade; Sinaga, Triandes
Engagement: Jurnal Pengabdian Kepada Masyarakat Vol. 9 No. 2 (2025): November 2025
Publisher : Asosiasi Dosen Pengembang Masyarajat (ADPEMAS) Forum Komunikasi Dosen Peneliti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29062/engagement.v9i2.2143

Abstract

This community engagement project aimed to address operational challenges faced by Micro, Small, and Medium Enterprises (MSMEs) through an integrated Point of Sales (POS) system. A case study at Akane Beauty Studio and Salon used a User-Centered Design (UCD) and Rapid Application Development (RAD) approach, managed under the PMBOK framework. The implementation yielded a significant impact on operational efficiency, notably reducing transaction time from over one minute to under one minute. A comparison of the workflow also showed improvement, with a manual process that previously took four minutes now being completed in two minutes. User Acceptance Testing (UAT) confirmed the system was fully functional and easy to use. This project demonstrates that a user-centric digital solution can tangibly improve the efficiency, data accuracy, and business sustainability of MSMEs.
Pemanfaatan Teknologi IoT dan Aplikasi Android untuk Pengendalian Kadar Amonia pada Peternakan Unggas Aditya Kristianto; Kevin Sirait; Sinaga, Triandes
ABDIKAN: Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Vol. 4 No. 4 (2025): November 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/abdikan.v4i4.6910

Abstract

This community service activity aims to implement an Internet of Things (IoT)–based system integrated with an Android application to monitor ammonia gas levels in poultry farms. The activity took place at Ziven Chicken Farm in Stabat, North Sumatra, which faces challenges related to ammonia accumulation from livestock waste. The methodology follows four phases: (1) initiation, involving initial observation and interviews with farm’s owner and workers concerning problems identifications and needs; (2) planning, including the design of the IoT solution and mobile application; (3) implementation, consisting of assembling the IoT device using the MQ-137 and DHT-22 sensors, integrating them with the ESP32 microcontroller, and developing the application connected to a cloud server; and (4) monitoring and control, which includes system performance monitoring, data validation, and evaluation of system use by the partner. The system provides real-time visualization of ammonia, temperature, and humidity levels through tables and graphs. Results show an upward trend of ammonia concentration, reaching 21 ppm on the third day, with humidity positively affecting ammonia levels. A notable spike occurred between 20:00 and 21:00 WIB, indicating the need for improved ventilation and cleaning routines. Overall, the system assists farmers in determining optimal maintenance schedules and supports the adoption of digital technologies in poultry farm management.
Co-Authors Ade Maulana Aditya Kristianto Barus, Okky Putra Kevin Sirait