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All Journal International Journal of Wireless And Multimedia Communications
Rostam Ahmad Efendi
Politeknik Negeri Padang
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering

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Internet of Things for Monitoring and Controlling Ammonia Gas and Temperature in Chicken Farms Lifwarda Lifwarda; Azra Mawandri; Erin Aulia Rahma; Rostam Ahmad Efendi
International Journal of Wireless And Multimedia Communications Vol. 2 No. 1 (2025): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v2i1.65

Abstract

This research aims to develop a tool to monitor and control temperature and ammonia gas levels in chicken farms. Ammonia gas (NH3) is an indicator of pollution that is harmful to the health of chickens, humans, and the environment. Ideal ammonia levels in cages should not exceed 30 ppm, while the safe threshold for chickens and humans is 25 ppm. High temperatures can increase ammonia levels, thus negatively affecting the health and productivity of broilers. The developed tool uses an MQ135 sensor to detect ammonia gas levels and a DHT22 sensor to measure temperature and humidity. The data obtained will be processed by ESP32 as a microprocessor. The measurement results are displayed on the LCD, and the tool is equipped with a WiFi module to connect it to the internet. A DC fan serves as an automatic control system to keep the temperature and ammonia gas levels within safe limits. Through an application built with MIT App Inventor, users can access real-time temperature data and ammonia gas levels. With this system, it is expected that chicken health and farm productivity can increase, and the risk of pollution due to ammonia gas can be minimized. This research is expected to be a reference for the development of monitoring and control technology in the livestock sector, providing effective solutions for farmers to create a healthier environment for chickens.  
Analysis of Website Security Using Sql Injection Penetration Testing on Damn Vulnerable Web Application Rostam Ahmad Efendi; Ismael Ismael
International Journal of Wireless And Multimedia Communications Vol. 3 No. 2 (2026): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v3i2.290

Abstract

Website security has become one of the primary concerns in the development of information systems due to the increasing number of cyberattacks targeting web-based applications. Among various cyber threats, SQL Injection remains one of the most critical vulnerabilities because it allows attackers to manipulate Structured Query Language (SQL) statements through unsensitized user inputs, potentially resulting in unauthorized access, data leakage, data manipulation, or complete system compromise. This research aims to analyse website vulnerabilities against SQL Injection attacks using a penetration testing approach on the Damn Vulnerable Web Application (DVWA), a deliberately vulnerable web application widely utilized for cybersecurity education and security assessment. The research employed an experimental methodology consisting of reconnaissance, vulnerability identification, exploitation, and vulnerability analysis. Penetration testing was conducted using Burp Suite, browser developer tools, and manually crafted SQL Injection payloads. The testing results demonstrated that the low-security configuration of DVWA was highly susceptible to authentication bypass attacks, allowing unauthorized access to sensitive information. The analysis further revealed that the primary causes of these vulnerabilities were inadequate input validation, dynamic SQL query construction, and the absence of parameterized queries or prepared statements. This study emphasizes the importance of implementing secure coding practices, input validation, parameterized SQL queries, and Web Application Firewall (WAF) technologies to mitigate SQL Injection risks. The findings contribute to cybersecurity education by providing practical evidence of common SQL Injection vulnerabilities and effective mitigation strategies that can be adopted by software developers and information system administrators
Co-Authors Azra Mawandri Erin Aulia Rahma Ismael Ismael Lifwarda Lifwarda