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Calculation Application for Subnetting IPv4 Address on Android Syarif Hidayatulloh; Prawira Maulana Ilham; Mareanus Lase
JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Vol 4, No 1 (2020): ---> EDISI JULI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jite.v4i1.3827

Calculation of subnetting IP Address manually is quite time consuming and difficult for people who are just learning. With current smartphone technology, especially those using the Android operating system. There are many things that can be done with smartphones nowadays, including studying subnetting IP address calculations. The purpose of this study is to design and build a mobile application to facilitate the study of subnetting IP Address calculations with the Android operating system. The research method used is a waterfall with stages of requirements, design, implementation, and testing. This research resulted in a mobile application for calculating IP Address subnetting that will facilitate studying and accelerating the calculation of IP Address subnetting. This application is able to search for subnet masks, number of subnets, number of hosts per subnet, IP broadcast, IP range, network ID, and there is a theoretical explanation of the IP Address, prefix, and range of each class of IP Address. The results of the study are indicated by the level of eligibility of this application based on a questionnaire from users with results, 41% strongly agree, 44% agree, 13% neutral, and 2% disagree.Keywords: IP Address, Subneting, Application, Android.

SISTEM PENGAIRAN OTOMATIS MEDIA TANAM HIDROPONIK MENGGUNAKAN SENSOR KELEMBABAN UDARA Syarif Hidayatulloh; Fahmi Alwi Rifa’i; Rangga Ziancy Prasetya
INTI Nusa Mandiri Vol 15 No 1 (2020): INTI Periode Agustus 2020
Publisher : Lembaga Penelitian dan Pengabdian Pada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33480/inti.v15i1.1370

Population growth has led to a reduction in urban agricultural land. With the development of technology, the agricultural sector is also experiencing growth in farming patterns without soil media known as hydroponics. Hydroponics requires watering through pipes run by manually operated electric pumps. Human resources are needed to standby to operate it. Do not rule out the possibility, humans can be negligent and cause the water system is disrupted so that plants die. Making a pump active automatically is a way to reduce the occurrence of these problems. This automatic pumping system will be controlled by a microcontroller to irrigate plants automatically and can meet the required nutrient sources. An ATMega16 microcontroller is used that is programmed to analyze the input and output signals as needed. The input is a DHT11 sensor that is used to measure temperature and humidity, while the output is a water pump to irrigate all pipes. The output is also equipped with a 16x2 LCD which functions to display information on temperature and humidity. With the automatic irrigation system in hydroponic plants can save energy and facilitate the work in caring for plants with hydroponic growing media.

SISTEM PENGAIRAN OTOMATIS MEDIA TANAM HIDROPONIK MENGGUNAKAN SENSOR KELEMBABAN UDARA Syarif Hidayatulloh; Fahmi Alwi Rifa’i; Rangga Ziancy Prasetya
INTI Nusa Mandiri Vol. 15 No. 1 (2020): INTI Periode Agustus 2020
Publisher : Lembaga Penelitian dan Pengabdian Pada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33480/inti.v15i1.1370

Population growth has led to a reduction in urban agricultural land. With the development of technology, the agricultural sector is also experiencing growth in farming patterns without soil media known as hydroponics. Hydroponics requires watering through pipes run by manually operated electric pumps. Human resources are needed to standby to operate it. Do not rule out the possibility, humans can be negligent and cause the water system is disrupted so that plants die. Making a pump active automatically is a way to reduce the occurrence of these problems. This automatic pumping system will be controlled by a microcontroller to irrigate plants automatically and can meet the required nutrient sources. An ATMega16 microcontroller is used that is programmed to analyze the input and output signals as needed. The input is a DHT11 sensor that is used to measure temperature and humidity, while the output is a water pump to irrigate all pipes. The output is also equipped with a 16x2 LCD which functions to display information on temperature and humidity. With the automatic irrigation system in hydroponic plants can save energy and facilitate the work in caring for plants with hydroponic growing media.

RANCANG BANGUN APLIKASI PENGELOLAAN PPH 21 PADA CV.ECS CONSULTING SERVICES DENGAN PENDEKATAN RAD Aji Yunisyaputra; Syarif Hidayatulloh
INTI Nusa Mandiri Vol. 20 No. 1 (2025): INTI Periode Agustus 2025
Publisher : Lembaga Penelitian dan Pengabdian Pada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33480/inti.v20i1.6640

Income Tax (PPh) 21 often poses a challenge for companies and employees in managing tax payments efficiently and accurately. CV. ECS Consulting Service, which currently uses Microsoft Excel for PPh 21 calculations, faces risks of errors and time-consuming manual processes. This research aims to develop a web-based PPh 21 calculation application using the Rapid Application Development (RAD) method tailored to the company’s needs. Data collection methods include direct observation and literature study, while the application development method adopts RAD, which is iterative and responsive to changing requirements. The scope of the research includes user interface design, development of calculation algorithms, employee data processing, and ensuring data security. The application was tested using Black Box testing to ensure all features function properly, User Acceptance Testing (UAT) to assess whether it meets user needs, and performance testing to evaluate the website’s speed and stability. Black Box testing was conducted on six cases, and UAT was carried out directly with users. The results showed that the application passed all tests and met the required functionalities. Performance testing also indicated that the system is fairly stable, although further improvement is needed for long-term use or during high traffic.

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