Garuda - Garba Rujukan Digital

Perancangan Antena Vivaldi Antipodal 2 - 18 GHz untuk Radio Direction Finder Deri Latika Herda; Siska Aulia; Frenzi Agres Yudithia
Spektral Vol. 4 No. 1 (2023): April 2023
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/spektral.v4i1.5654

The 2-18 GHz frequency band is a spectrum that is widely used for telecommunication systems, both military and civil. This is proportional to the number of illegal uses. This research develops an antipodal vivaldi antenna to support direction finding activities of illegal transmitters in the 2-18 GHz frequency band. Antenna design is a simulation using CST software by modifying the ground, widening the antenna arm, and increasing the length of the transmission line. The antenna design measures 94.14 x 73.2 mm on FR-4 substrate with a dielectric constant of 4.6 and a thickness of 1.6 mm. The simulation results show that the antipodal vivaldi antenna has a value -49.95378 dB ≤ S11 ≤ -10.022357 dB, 1.0066947≤ VSWR ≤1.9248251 and an average gain of 5.1558 dB in the 2-18 GHz frequency band.

Pelatihan Pembuatan Smart Parking Berbasis IoT di SMKN 8 Padang Ummul Khair; Yulindon Y; Amelia Yolanda; Deri Latika Herda
Jurnal Abdimas: Pengabdian dan Pengembangan Masyarakat Vol 5 No 1 (2023)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jppm.v5i1.1133

SMKN 8 Padang merupakan sekolah kejuruan yang salah satu teknik kejuruannya fokus dalam Teknik Jaringan Komputer dan Telekomunikasi (TJKJ) menghasilkan lulusan-lulusan yang sesuai dengan kebutuhan industri. Permasalahan utama yang dihadapi mitra adalah tingkat pengetahuan dan pemahaman siswa SMKN 8 Padang tentang IoT dan implementasinya yang masih minim, khususnya dalam membangun sistem smart parking berbasis IoT. Kondisi ini terjadi akibat pembelajaran tentang IoT masih kurang maksimal karena tidak diberikan dalam sebuah mata pelajaran khusus dan belum terdapatnya modul pembelajaran mengenai IoT untuk di implementasikan secara langsung. Berdasarkan hal ini Tim Pelaksana PkM berinisiatif melaksanakan pelatihan mengenai smart parking berbasis IoT menggunakan software Arduino UNO dengan prototype. Tujuan kegiatan ini adalah melakukan simulasi media pembelajaran IoT untuk sistem smart parking bagi siswa sekolah mitra. Hasil dari Kegiatan PkM yang telah dilakukan berupa penyampaian materi, pengenalan dan perakitan software dan prototype sesuai dengan modul, mengeksekusi listing program arduino ke prototype yang telah dirakit dan penyerahan produk kepada pihak sekolah. Secara keseluruhan, jika dilihat dari kategori ketercapaian tujuan kegiatan, ketercapaian target materi, dan kemampuan peserta dalam penguasaan materi, maka kegiatan PkM ini dapat dinilai baik. Hal ini terwujud berkat dukungan dari berbagai pihak, terutama para peserta pelatihan, guru-guru dan kepala sekolah SMKN 8 Padang.

Pelatihan Smart Home Berbasis Internet of Things (IoT) di SMK Taruna 2 Padang Deri Latika Herda; Vera Veronica; Andi Ahmad Dahlan; Nofry Ardy Roza; Nugraha Saputra
Jurnal Abdimas: Pengabdian dan Pengembangan Masyarakat Vol 5 No 1 (2023)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jppm.v5i1.1134

Jurusan Teknik Audio dan Video (TAV) SMK 2 Taruna Padang memiliki tujuan untuk menghasilkan lulusan yang memiliki kompetensi dan daya saing yang mampu menangani permasalahan elektronika serta kebutuhan industri. Jika mengamati perkembangan teknologi yang ada di pasar industri, khususnya di indonesia, secara langsung sudah dapat terintegrasi dengan internet, dimana teknologi cerdas ini dikenal sebagai Internet of Things (IoT). Namun, hasil penelusuran survei lapangan menunjukkan bahwa kurikulum jurusan TAV SMK 2 Taruna Padang saat ini belum memiliki mata pelajaran khusus mengenai IoT sehingga pengetahuan dan pemahaman siswa mengenai IoT belum optimal. Berdasarkan permasalahan ini, tim Pengabdian kepada Masyarakat (PkM) Politeknik Negeri Padang (PNP) memberikan solusi berupa kemampuan teknis (hard skill) dan kemampuan sosial (soft skill) kepada siswa melalui pelatihan smart home berbasis IoT. Pelaksanaan kegiatan ini dilakukan dengan menggunakan metode ceramah dan diskusi bersama siswa terkait penerapan IoT pada smart home serta bimbingan, pelatihan perakitan dan perancangan sistem kontrol smart home menggunakan software Arduino UNO. Hasil pelaksanaan kegiatan dan kuisioner menunjukkan bahwa siswa TAV SMK 2 Padang mampu menguasi kompetensi yang diberikan. Selain pelatihan, tim PkM PNP yang terdiri dari dosen dan mahasiswa menyerahkan modul pembelajaran, prototype, serta komponen sistem smart home kepada jurusan TAV SMK 2 Padang sebagai pengembangan bahan pembelajaran sekolah.

Fiber Optical Network Damage Detection Passive Splitter 1:8 in ODC uses IOT Technology as a means of Real Time Reporting Aprinal Adila Asril; Uzma Septima; Ratna Dewi; Popy Maria; Deri Latika Herda
Brilliance: Research of Artificial Intelligence Vol. 3 No. 2 (2023): Brilliance: Research of Artificial Intelligence, Article Research November 2023
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v3i2.2966

Fiber optic networks currently have a lot of interest, so a network monitoring system is needed that guarantees quality and speed of repair if mass disruption occurs. in research [1] regarding fiber network damage detection using IoT with the use of a 1:4 splitter and the use of a detector that can work at a wavelength of 650nm so that it can detect damaged cables with output in the software. So in connection with this, the author wants to develop the results of this research by using a 1:8 splitter and carrying out detection using the LDR sensor and NodeMCU ESP32 using IoT (Internet of Things) technology. The ESP32 NodeMCU will receive data in the form of light intensity values ??at each ODC from the LDR sensor. And then sent to a database that is connected directly to the Android application. The cable identification process occurs in three states: normal, warning, and error. The test and analysis results show that the hardware device can work well, with attenuation in the passive splitter cable of 10.28 dB and a light source with a wavelength of 650 nm. Cable detected as damaged is indicated by an output in the software with a delay of 4.56 s.

Smart Air Humidifier For Air-conditioned Rooms Based On NodeMCU ESP8266 Yudithia, Frenzi Agres; Herda, Deri Latika; Wahyudi, Al Hafizh
JATAED: Journal of Appropriate Technology for Agriculture, Environment, and Development Vol. 1 No. 2 (2024): JATAED: Journal of Appropriate Technology for Agriculture, Environment, and Dev
Publisher : LEMBAGA KAJIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (LKPPL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jataed.v1i2.46

The advent of smart technology has significantly revolutionized home appliance management, with notable advancements including the development of smart air humidifiers. This paper delves into the design, implementation, and performance evaluation of an advanced air humidifier specifically engineered for air-conditioned environments, emphasizing its integration with mobile phone technology. The innovative device incorporates the NodeMCU ESP8266 microcontroller, which facilitates Wi-Fi connectivity, and the DHT22 sensor, known for its precise temperature and humidity measurements. Key features of this humidifier include a Mist Maker that enhances humidity levels, an LCD display for real-time data visualization, and remote control capabilities via the Blynk app. Comparative performance testing of the DHT22 sensor against the HTC-1 Thermometer Hygrometer demonstrated high accuracy, with an average temperature error of 1.89% and a humidity error of 1.87%, resulting in accuracies of 98.11% and 98.13%, respectively. The humidifier effectively maintained desired humidity levels by toggling between on and off states within a 44% to 45% relative humidity range. This smart humidifier represents a significant leap forward in indoor climate management, offering superior user convenience and comfort. By harnessing modern microcontroller technology and advanced sensors, it delivers considerable improvements over traditional models, making it an invaluable tool for sustaining optimal indoor conditions in air-conditioned spaces.

Implementasi Inovasi Teknologi Pemeliharaan Dan Pemasaran Untuk Peningkatan Nilai Tambah Hasil Perikanan Air Tawar Pada Kelompok Budidaya Ikan Air Tawar Sukses Mulia Firdaus, Firdaus; Septivani, Mega Dwi; Herda , Deri Latika; Rusfandi, Rusfandi; Ferdiansyah, Ferdiansyah; Ananda , Risa Dwi; Ridho, Sahid
JURNAL PENGABDIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (JP3L) Vol 2 No 1 (2024): JURNAL PENGABDIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (JP3L): Volume 2 Nomor 1,
Publisher : LEMBAGA KAJIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (LKPPL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jp3l.v2i1.65

Budidaya air tawar adalah kegiatan untuk meningkatkan produktivitas perairan khususnya ikan air tawar. Ikan nila merupakan jenis ikan air tawar yang umumnya dibudidayakan, khususnya oleh kelompok budidaya ikan tawar sukses mulia. Kelompok budidaya ikan air tawar sukses mulia merupakan pembudidaya ikan nila yang berlokasi di Kelurahan Koto Luar, Kecamatan Pauh, Kota Padang, Provinsi Sumatera Barat. Permasalahan yang ditemukan pada kelompok budidaya sukses mulia ini terdiri dari permasalahan sistem pemeliharaan yakni belum efisiennya secara tenaga kerja, kebutuhan pakan, perkembangan/pertumbuhan ikan dan pada permasalahan pemasaran yang belum efektif dan tidak adanya value added (nilai tambah) pada produk yang dipasarkan. Melalui pelaksanaan pengabdian ini pada sistem pemeliharaan solusi yang dilakukan berupa pembuatan alat pemberi pakan ikan otomatis yang dapat diatur jadwal pemberian dan takaran pakan. Pada permasalahan pemasaran solusi yang dilakukan yaitu pelatihan yang berkaitan dengan pemasaran (digital). Capaian luaran dari pengabdian ini memberikan manfaat meningkatnya efisiensi produktivitas hasil panen dan peningkatan kemampuan pemasaran digital, memperluas jangkauan pasar, meningkatkan daya saing bisnis di tengah tantangan dan peluang pasar yang dinamis.

Analisis Kemampuan Putaran Bolak-Balik Roller Mixer Stastis dengan Setting Buzzer Pengingat Waktu Yudithia, Frenzi Agres; Herda, Deri Latika; Rossa, Anindita Aulia
ELECTRON Jurnal Ilmiah Teknik Elektro Vol 4 No 1: Jurnal Electron, Mei 2023
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/electron.v4i1.37

Roller mixer is a laboratory tool to assist the process of homogenization in blood hematology examination. Generally, this tool works by rotating the rollers which mix the blood sample and anticoagulant agent. Apart from that, this mixer roller wobbles when it is running, while rotating in the same direction following a predetermined speed setting. In this research a static roller mixer prototype has been made, which can rotate back and forth with a pause setting every 30 seconds. So that the prototype can be used as a supporting tool in the laboratory, several test times are carried out for 1-15 minutes. Analysis of the ability to rotate back and forth the prototype was also carried out at different speed levels, namely 33 RPM, 40 RPM, 50 RPM, and 60 RPM. The results of the tests that have been carried out show that the prototype has a stable rotational speed of 31.5 seconds. The measurement has a time difference of 5% against the setting time. Based on the data it can be concluded that the increase in the roller speed level does not affect the change in the time test value that has been carried out.

Antena Vivaldi Antipodal 2-18 GHz untuk Aplikasi Direction Finding Sinyal Latika Herda, Deri; Suryana, Joko; Agres Yudithia, Frenzi; Maria, Popy; Raiqah Luthfiah, Najla
ELECTRON Jurnal Ilmiah Teknik Elektro Vol 5 No 2: Jurnal Electron, November 2024
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/electron.v5i2.238

The demand for advanced direction-finding systems operating in the 2-18 GHz frequency range has surged due to their role in cellular, satellite, and military applications. This increased demand has also led to a rise in illegal transmissions within this spectrum, highlighting the need for accurate signal detection and localization. This paper discusses the design and analysis of a compact antipodal Vivaldi antenna (AVA) aimed at detecting illegal transmitters within the 2-18 GHz band. Direction-finding systems require antennas with wide bandwidth, high gain, and directional radiation patterns to meet performance criteria. The Vivaldi antenna, with its tapered slot design, offers these features, making it ideal for precise signal detection. Designed on an FR-4 substrate with a relative permittivity of 4.6, the antenna's performance was optimized using CST Microwave Studio software. The antenna was fabricated using wet etching on a copper conductor. Measurement results show that the antenna exhibits a directional radiation pattern, with a maximum gain of 10.527 dBi at 8 GHz, surpassing the simulated gain of 8.12 dBi, and an average measured gain of 5.975 dBi, exceeding the design requirement of 4 dBi. Operating effectively across a 2.7-18 GHz range, the antenna achieves a bandwidth of 15.3 GHz, fulfilling 95.625% of the specified range. Despite minor shifts in the reflection coefficient due to dielectric permittivity variations in the FR-4 substrate, the antenna demonstrates strong performance for direction-finding applications. This study highlights the AVA's potential for high-performance detection of illegal transmitters and discusses design challenges and opportunities for optimization

Pelatihan Penggunaan Aplikasi Desain Grafis untuk Meningkatkan Nilai Produk Handmade di PKK Kecamatan Padang Utara Sri Nita; Popy Maria; Deri Latika Herda; Aprinal Adila Asril; Zidan Pratama Yuda
Warta Pengabdian Andalas Vol 31 No 4 (2024)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.31.4.668-675.2024

The Family Welfare Movement (PKK) of Padang Utara District aims to improve the quality of family life through education, health, and economic development. However, PKK Padang Utara faces challenges in empowering its members, particularly in product promotion in the digital era. The main obstacles are limited digital skills and marketing knowledge. To address these issues, the Community Service (PKM) team from Politeknik Negeri Padang (PNP) provided training in handmade accessories skills and digital marketing using the Canva application. The training methods included lectures, discussions, and practical guidance. The program showed significant skill improvement: 80% of participants experienced increased competency in using Canva for marketing design. In comparison, 100% of participants successfully mastered making handmade accessories. Evaluation of the teaching methods showed the highest satisfaction with practical guidance (100%), followed by discussions (80%) and lectures (50%). This program successfully enhanced individual skills and positively contributed to family economies, enabling PKK Padang Utara to become more independent in facing digital marketing challenges.

Pelatihan Penggunaan Aplikasi Desain Grafis untuk Meningkatkan Nilai Produk Handmade di PKK Kecamatan Padang Utara Sri Nita; Popy Maria; Deri Latika Herda; Aprinal Adila Asril; Zidan Pratama Yuda
Warta Pengabdian Andalas Vol 31 No 4 (2024)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.31.4.668-675.2024

The Family Welfare Movement (PKK) of Padang Utara District aims to improve the quality of family life through education, health, and economic development. However, PKK Padang Utara faces challenges in empowering its members, particularly in product promotion in the digital era. The main obstacles are limited digital skills and marketing knowledge. To address these issues, the Community Service (PKM) team from Politeknik Negeri Padang (PNP) provided training in handmade accessories skills and digital marketing using the Canva application. The training methods included lectures, discussions, and practical guidance. The program showed significant skill improvement: 80% of participants experienced increased competency in using Canva for marketing design. In comparison, 100% of participants successfully mastered making handmade accessories. Evaluation of the teaching methods showed the highest satisfaction with practical guidance (100%), followed by discussions (80%) and lectures (50%). This program successfully enhanced individual skills and positively contributed to family economies, enabling PKK Padang Utara to become more independent in facing digital marketing challenges.

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