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All Journal Jurnas Nasional Teknologi dan Sistem Informasi Journal of Information Technology and Computer Engineering Jurnal Hilirisasi IPTEKS (JHI) Buletin Ilmiah Nagari Membangun Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks CHIPSET (Journal on Computer Hardware, Signal Processing, Embedded System and Networking)
Novani, Nefy Puteri
Universitas Andalas
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Sistem Wi-Fi Coin untuk Optimasi Akses Internet dan Bisnis di Desa Wisata Sanjai Bukittinggi Arrya Anandika; Rifki Suwandi; Rian Ferdian; Tati Erlina; Ratna Aisuwarya; Budi Rahmadya; Dodon Yendri; Rizka Hadelina; Nefy Puteri Novani; Desta Yolanda
Warta Pengabdian Andalas Vol 30 No 4 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.30.4.822-836.2023

Abstract

The problem that occurs in Sanjai Tourism Village is inadequate internet access. Internet access is fundamental nowadays, both in daily activities and in the context of promotional activities for Tourism Villages to attract visitors. One of the aspects of assessing the Indonesian Tourism Village Award is digital creativity. To make this happen, it is necessary to have internet access that everyone can enjoy, including the community, visitors, and the Tourism Village group (Pokdarwis) in the Sanjai Tourism Village. Therefore, in Community Service activities, a Wi-Fi Coin system was designed to improve internet access in the Sanjai Tourism Village. The Wi-Fi Coin System uses coins to access the internet. In addition, the Wi-Fi Coin system can be portable for use in the desired location. The method used consists of three stages: preparation consisting of a survey and needs analysis to obtain data on community needs, especially the Sanjai Tourism Village Pokdarwis. The implementation consists of system design, testing, and implementation. System design and testing were carried out at the Unand Computer Engineering Department. Meanwhile, the implementation was done directly before the Pokdarwis team and the Village Community. Trials and equipment handover to the Sanjai Tourism Village Pokdarwis marked the activity results.
Optimizing Tourism Potential and Superior Products of Sanjai Tourism Village Through Website Design and Implementation Rifki Suwandi; Arrya Anandika; Rian Ferdian; Tati Erlina; Ratna Aisuwarya; Budi Rahmadya; Dodon Yendri; Werman Kasoep; Rahmi Eka Putri; Nefy Puteri Novani; Desta Yolanda; Rizka Hadelina
Warta Pengabdian Andalas Vol 32 No 1 (2025)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.32.1.61-70.2025

Abstract

The use of technology is fundamental in the digital era. Adjustment and transformation are essential activities to keep up with technological developments. One of the uses of technology is product marketing and promotion. Sanjai Tourism Village, located in Bukittinggi City, is one of the villages where marketing and promotion of tourism products are still carried out using conventional promotional methods such as through newspapers, radio advertisements, posters, and distribution of brochures. This method is still limited and cannot reach a broader scope. Therefore, to compete in the digital era, there needs to be a transformation of promotion and marketing of tourism products through the internet media using a website. Information about promoting and marketing tourism products can be done digitally and online using a website. The results of advertising and marketing tourism village products by utilizing the website can be spread and known to the public with a broader reach. Therefore, in the community service activities of the Unand Computer Engineering Department, the Sanjai Tourism Village website was built with a method consisting of several stages, such as coordination, surveys, design, website implementation, improvement, and submission of the website to Sanjai Tourism Village. Each stage has been carried out, and a website has been produced with features such as a homepage, profile, tourism products of various fields, news and activities, and contacts.
Analisa Detak Jantung dengan Metode Heart Rate Variability (HRV) untuk Pengenalan Stres Mental Berbasis Photoplethysmograph (PPG) Novani, Nefy Puteri; Arief, Lathifah; Anjasmara, Rima
JITCE (Journal of Information Technology and Computer Engineering) Vol. 3 No. 02 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jitce.3.02.90-95.2019

Abstract

Emotions influence individual behavior and there is no emotional experience that has a stronger influence than stress. Prolonged stress has a direct negative influence on physical and emotional conditions. For that reason, it is important to know a person's mental stress state, so that further action can be taken later, so as not to have a serious impact on physical and mental health. In this study, the photoplethysmograph (PPG) approach is used to recognize mental stress conditions based on Heart Rate Variability (HRV) frequency domain analysis. In this study stress was identified by SVM classifier using LF, HF and LF / HF Ratio from HRV frequency domain analysis. The LF results were increased in mild stress conditions, HF increased in conditions of mild stress and medium stress and the LF / HF Ratio slowly increased from mild stress to severe stress. The training data obtained 80 data with 95% mild stress accuracy from 19 data, medium stress accuracy 96% from 49 data and 99% severe stress accuracy with 12 data.
Rancang Bangun Sistem Deteksi Kecepatan Kendaraan di Wilayah Zona Selamat Sekolah (ZoSS) Berbasis Mini PC Desprijon, Desprijon; Putri, Rahmi Eka; Novani, Nefy Puteri
JITCE (Journal of Information Technology and Computer Engineering) Vol. 5 No. 01 (2021)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jitce.5.01.41-51.2021

Abstract

This study aims to create a system to detect vehicle speed in the School Safe Zone area using Mini PC based with Computer Vision technology and Image Processing techniques. This research, was hoped for the drivers will more discipline in driving, so can create safe and comfortable traffic in the School Safe Zone area. This system was made using a camera module to take video of the track, Raspberry Pi was used as the main device for detection and speed calculation. Every vehicle which crossed the zone would be detected and tracked to follow every vehicle movement, then was conducted a process of saving the center point of the vehicle object based on the initial detection line. Finally, calculated the vehicle speed based on the distance and time the vehicle moved on the frame which was set based on the detection line. The results of the vehicle speed would be displayed on the LCD and the output was in the form of a sound from the speaker as a warning for drivers whose vehicle speed exceeds 25 km / hour. Based on results of this research, the system was capable for work well in detecting and getting the speed results of passing vehicles. However, for direct implementation the devices in this system are inadequate for video processing, so that the response time and accuracy level was obtained by the system did not match for actual conditions.
Sistem Pendeteksi Gejala Awal Tantrum Pada Anak Autisme Melalui Ekspresi Wajah Dengan Convolutional Neural Network Novani, Nefy Puteri; Salsabila, Dini Ramadhani; Aisuwarya, Ratna; Arief, Lathifah; Afriyeni, Nelia
JITCE (Journal of Information Technology and Computer Engineering) Vol. 5 No. 02 (2021)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jitce.5.02.93-106.2021

Abstract

Tantrums are outbursts of anger and they can occur at any age. An attitude tantrum or what is commonly referred to as a temper tantrum is a child's outburst of anger that often occurs when a child shows negative behavior. Emotional outbursts of tantrums that occur in children with autism are not only to seek the attention of adults, but also as an outlet for a child's feelings for parents and those around him on a whim or feeling he is feeling, but the child cannot convey it. For this reason, researchers propose a system for detecting early symptoms of tantrums in children with autism through facial expressions with CNN. The CNN method is one of the deep learning methods that can be used to recognize and classify an object in a digital image. Then the preprocessing process is carried out using labeling on the data. Then the CNN architecture is designed with input containing 48x48x1 neurons. The data was then trained using 357 epochs with an accuracy rate of 72.67%%. Then tested using test data for children with autism to get an average accuracy value of 72.67%%.
Rancang Bangun Sistem Pengering Putar untuk Rumput Laut Berbasis Mikrokontroler Novani, Nefy Puteri; Afif, Awal
JITCE (Journal of Information Technology and Computer Engineering) Vol. 6 No. 02 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jitce.6.02.44-49.2022

Abstract

Eucheuma cottonii is a type of seaweed that is cultivated in the coastal area of Nagari Sungai Pinang, Koto XI Tarusan District, Pesisir Selatan District, West Sumatra Province. Before being sold, seaweed farmers must dry their seaweed first, because what can be sold is dried seaweed. Drying the seaweed takes two to three days depending on the weather conditions. In this research a seaweed drying system has been designed with a tool that rotates the seaweed in the drying chamber. In this rotary drying system, the soil moisture sensor is used which functions to detect the moisture content of the seaweed, if the moisture content of the seaweed is still read > 30% then the microcontroller turns on the relay which forwards instructions to the heater and the DC motor starts rotating the player container. The DS18B20 sensor is used to detect the temperature of the drying chamber, if the total moisture content of the seaweed is 30%, then the state of dry seaweed has been reached. Tests have been carried out to determine the difference in time required between the seaweed drying process using the system that has been built in this study and the seaweed drying process that utilizes direct sunlight. To achieve a moisture content of 30% in the seaweed drying process with the system designed in this study it takes an average of ±50 minutes, while using direct sunlight it takes ±9 hours to dry the seaweed.
Design of Hand Sanitizing Device with Mist Spray Based On Microcontroller Kusuma Afdhal, Thirafi Hadi; Puteri Novani, Nefy
CHIPSET Vol. 6 No. 01 (2025): Journal on Computer Hardware, Signal Processing, Embedded System and Networkin
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/chipset.6.01.94-102.2025

Abstract

The importance of hand washing habits as part of a healthy lifestyle is one of the basic hygiene practices that are effective in preventing the spread of disease and infection. In this study, the design and implementation of a hand sanitizer using a microcontroller-based disinfectant mist has been developed. The design of this system can be a solution to saving water when washing hands and increasing hand washing habits with the availability of this tool in public places. This tool uses a Passive Infrared (PIR) sensor to detect the presence of hands, then the mist maker will be active to produce mist from the sterilization fluid. The results obtained in this study indicate that the tool can detect hand movements with a range of 45˚ to 135˚. The mist maker produces mist at a rate of 183.323 ml/hour with a sterilization process of 15 seconds and converts 4.56 ml of liquid into mist when this tool is used. This tool is effective and efficient for use in public places.
Implementasi Smart Room Pada Ruangan Very Important Person (VIP) Berbasis Internet of Things (IoT) Arvan, Muhammad Haekal; Puteri Novani, Nefy; Hadelina, Rizka
CHIPSET Vol. 6 No. 02 (2025): Journal on Computer Hardware, Signal Processing, Embedded System and Networkin
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/chipset.6.02.151-159.2025

Abstract

The development of an Internet of Things (IoT)-based smart room system in a Very Important Person (VIP) room was carried out using a NodeMCU ESP8266 microcontroller, a Passive Infrared (PIR) sensor, and the Blynk application. The system is capable of detecting human presence at a distance of up to 5 meters with a detection angle of 35°-145°, and automatically controlling electronic devices such as lights and music players. Additional manual control is carried out through the Blynk application for volume and equalizer settings. Testing shows that the system successfully reduces electricity consumption by turning off devices when no users are present. The PIR sensor detection success rate reached 98% in a 7 x 4 meter room, with a system response time of less than 2 seconds. The system also supports light control through two methods: input from the PIR sensor and the Blynk application. The overall implementation demonstrates operational efficiency, ease of management, and potential energy savings in an IoT-based VIP room facility.
Rancang Bangun Pengemasan Produk Kacang Goreng Otomatis Berbasis Mikrokontroler Hasanah, Yusni; Puteri Novani, Nefy
CHIPSET Vol. 5 No. 01 (2024): Journal on Computer Hardware, Signal Processing, Embedded System and Networkin
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/chipset.5.01.49-57.2024

Abstract

The working system of this Automatic Fried Bean Product Packaging tool uses Arduino Mega2560 as a microcontroller, then a screw on the funnel to accelerate the descent of the product into the packaging plastic and prevent blockages, infrared sensors to detect product availability in storage containers. The tool made uses volume measurements to minimize error on the scales using a load cell sensors. The type of research used in making the final assignment is action research which is carried out carefully, logically and systematically. The conclusions of this research are (1) The system can detect the supply of fried peanuts in the funnel/silo using infrared FC-51 sensor with a distance range of 1 – 8 cm. (2) The system can read the mass input selected by user, namely 75 g, 100 g, and 150 g with a push button and displayed through the LCD. (3) The system can fill the fried peanuts into packages according to the mass that has been set through the KY-008 laser sensor and laser receiver, using the tube volume formula with a percentage error of 4.5% for a mass of 75 grams, 3.83% for a mass of 100 grams, and 5.41% for a mass of 150 grams. (4) The system can perform the package closing process using servo motors, heating elements, and stepper motors. The duration of time required by the heating element in gluing the plastic ranges from 3 to 4 seconds.
Sistem Pemandian dan Pembersihan Sangkar Burung Murai Batu Otomatis Berbasis Internet Of Things Savitri, Valiyana; Puteri Novani, Nefy
CHIPSET Vol. 5 No. 02 (2024): Journal on Computer Hardware, Signal Processing, Embedded System and Networkin
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/chipset.5.02.132-144.2024

Abstract

This study designs an automated bathing and cage cleaning system for Murai Batu birds based on the Internet of Things (IoT) using the NodeMCU ESP32 microcontroller. The system integrates a turbidity sensor to monitor water clarity, an ultrasonic sensor to measure water level, and a load cell sensor to detect waste weight. Additionally, a PIR sensor is used to detect the bird's presence, while a stepper motor and relay are employed to automate the opening and closing of the door. Cage cleaning is performed by operating a belt conveyor driven by a DC motor, and water replacement is conducted using a water pump. All components are controlled by the NodeMCU ESP32, with monitoring facilitated through the Telegram application. The implementation results demonstrate that the system is effective, achieving sensor accuracies of 95.4%, 97.7%, and 97.36%, respectively, and providing convenience for bird owners in managing and monitoring the system remotely.
Co-Authors Afif, Awal Akbar, Ricky Anisha Fadia Haya Anjasmara, Rima Arrya Anandika Arvan, Muhammad Haekal Awal Afif Budi Rahmadya Derisma Derisma Derisma Derisma Desprijon Desprijon Desprijon, Desprijon Dini Ramadhani Salsabila Dodon Yendri Fajril Akbar Fathonah Ghaniyyah Fatihaturrizkah Ferdian, Rian Firra Azzarah Trie Utami Hadelina, Rizka Handoko Handoko Handoko Handoko Hasanah, Yusni Hersyah, Mohammad Hafiz Indrapriyatna, Ahmad Syafruddin Iqbal Saputra Khairul Fikri Khandra Fahmy Kusuma Afdhal, Thirafi Hadi Lathifah Arief, Lathifah M. Hafiz Hersyah M. Hafiz Hersyah M. Hafiz Hersyah M. Ridho Heranof M. Ridho Heranof Marlina, Winny Alna Mohammad Hafiz Hersyah Nelia Afriyeni Prima Dwiyana Nugraha Purwoko, Agus Rahmi Eka Putri Rahmi Eka Putri, Rahmi Eka Ramdani, Fadhil Ratna Aisuwarya Rian Ferdian Rifki Suwandi Rifki Suwandi Rima Anjasmara Rizka Hadelina Salsabila, Dini Ramadhani Satri Asman Savitri, Valiyana Tati Erlina Tati Erlina Werman Kasoep Werman Kasoep Werman Kasoep Werman Kasoep Yolanda, Desta Yuni Anggraini Yuni Anggraini