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All Journal Jurnal Fisika Unand Jurnal Ilmu Fisika Accounting Profession Journal (APAJI) BERNAS: Jurnal Pengabdian Kepada Masyarakat Natural Science: Jurnal Penelitian Bidang IPA dan Pendidikan IPA Jurnal Pengabdian kepada Masyarakat Nusantara Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Kartika: Jurnal Studi Keislaman
Rahmat Rasyid
Andalas University
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Rancang Bangun Alat Ukur Dioptri Lensa Kacamata Untuk Penderita Miopi Dan Hipermetropi Dengan Penerapan Perspektif Visual Digital Berbasis Arduino Mega2560 Fauzi, Ilham; Rasyid, Rahmat
Jurnal Fisika Unand Vol 12 No 4 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.12.4.651-657.2023

Abstract

Telah dilakukan penelitian tentang pengukuran dioptri lensa kacamata untuk penderita miopi dan hipermetropi dengan penerapan perspektif visual digital berbasis Arduino Mega2560. Penelitian ini bertujuan untuk mengukur dioptri lensa kacamata dengan menguji kemampuan lensa mata dalam melihat objek menggunakan alat alternatif pengganti sistem ukur yang biasa dipakai seperti autorefraktometer dan trial lens. Komponen utama yang digunakan yaitu TFT display 3.2 inch untuk penampil objek sebagai input data, kemudian data diolah menggunakan Arduino Mega2560 dan hasil keluaran akan ditampilkan pada LCD 2x16. Hasil pengukuran pada penderita rabun jauh didapatkan tingkat akurasi sebesar 98,08%, sedangkan pada pengukuran penderita rabun dekat menghasilkan tingkat akurasi sebesar 97,475. Dari hasil yang diperoleh, maka dapat disimpulkan bahwa rancang bangun yang telah diuji mampu bekerja dengan baik.
Rancang Bangun Detektor Kematangan Buah Kelapa Sawit Menggunakan Sensor Tcs3200 Dan Modul Wifi ESP32-CAM dengan Notifikasi via Telegram Putro, Aldhi Cahyo Millenio; Rasyid, Rahmat
Jurnal Fisika Unand Vol 13 No 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.1.68-74.2024

Abstract

This study aims to make a detector of oil palm fruit maturity using the TCS3200 color sensor and the ESP32-CAM Wi-Fi module with notifications via Telegram. Oil palm farmers need a tool to detect the ripeness of the fruit to make it easier for them to monitor the fruit. This tool uses the TCS3200 color sensor to detect the ripeness of palm fruit based on the color of the palm skin; at the same time, the ESP32-CAM module is useful for processing data from the TCS3200 color sensor as the output of Telegram notifications. The TCS3200 color sensor detects the RGB value of the palm object, which is then processed by the ESP32-CAM module. The results obtained in testing the maturity detection tool for palm fruit in ripe and immature conditions can be seen from the Telegram notification. The RGB value of the TCS3200 color sensor will be displayed as information on the condition of the palm fruit, which is detected and used as a notification on the Telegram application. The highest percentage of success in testing the maturity of the fruit was when the fruit was immature at 100%, and the lowest was when the fruit was ripe at 86.6%.
Sistem Kontrol Kelembaban Tanah dan Penyiraman Otomatis Pada Tanaman Seledri (Apium graveolens L.) Yang Dipengaruhi Oleh Suhu Berbasis Mikrokontroler Adhana, Ghina Athaya; Rasyid, Rahmat
Jurnal Fisika Unand Vol 13 No 2 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.2.261-267.2024

Abstract

A system of soil moisture control and automatic watering has been designed for celery (Apium graveolens L.) which is influenced by temperature and humidity based on a microcontroller. This system functions to water the plants automatically based on the soil moisture that has been set in the program. The system will provide information to the user when the soil moisture is more than 75%. The system consists of a DHT11 sensor as a temperature and humidity detector, a capacitive soil moisture sensor to detect soil moisture, a relay as a mini water pump switch for watering plants, red and green LEDs as indicator lights according to the measurement results of a capacitive soil moisture sensor and LCD. to display temperature, air humidity and soil moisture. The test results show that the tool can function properly, if the soil moisture is <75% the pump will start and the soil moisture ≥75 the pump will stop so that watering does not occur. The highest humidity obtained was 83% and the lowest temperature was 23°C with the condition that the plants did not look dry, while the highest temperature obtained was 30°C and the lowest humidity was 77% with the conditions that the plants looked dry.
Sistem Pemantauan serta Pengendalian Suhu dan PH Air Berbasis Arduino Uno pada Pendederan Udang Vaname Primanandra, Afdal; Yusfi, Meqorry; Rasyid, Rahmat
Jurnal Fisika Unand Vol 13 No 3 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.3.322-328.2024

Abstract

Kualitas air merupakan aspek yang sangat menentukan keberhasilan budidaya udang vaname. Kualitas air yang diperhatikan diantaranya adalah suhu dan pH air. Penelitian ini menghasilkan sistem yang melakukan pemantauan serta pengendalian terhadap suhu dan pH air pada pendederan udang vaname dengan memanfaatkan sensor dan aktuator. Sensor yang digunakan adalah sensor DS18B20 sebagai pendeteksi suhu dan sensor pH-4502C sebagai pendeteksi pH air, sedangkan aktuator yang digunakan adalah relay, pompa air untuk mengaliri pH up atau pH down ke tambak, heater untuk menaikan suhu dan fan untuk menurunkan suhu air. Data suhu dan pH air yang terdeteksi oleh sensor diteruskan ke mikrokontroler untuk diproses lalu ditampikan pada LCD serta menyalakan aktuator jika suhu dan pH air tidak sesuai dengan ketentuan yang diberikan. Hasil yang didapat pada penelitian ini yaitu sebuah sistem yang dapat memantau serta mengendalikan suhu dan pH air dengan persentase kesalahan sensor DS18B20 sebesar 1,19% dan sensor pH-4502C sebesar 1,23%. Nilai yang didapatkan setiap sensor ditampilkan pada LCD, serta menyalakan pompa air jika 7 > pH > 8,5, heater jika suhu < 28°C dan fan jika suhu > 30°C. Hasil ini mengindikasikan bahwa sistem yang dirancang berfungsi dengan baik untuk memantau serta mengendalikan suhu dan pH air pada pendederan udang vaname
Sistem Kontrol Otomatis Pemberian Larutan Nutrisi untuk Tanaman Kale Pada Metode Pertanian Aeroponik Berbasis Mikrokontroler Ardani, Magfira; Firmawati, Nini; Rasyid, Rahmat
Jurnal Fisika Unand Vol 15 No 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.15.1.34-40.2026

Abstract

Innovation in agricultural cultivation methods continues to be developed to improve production yields, one of which is the aeroponic system that enables plants to grow without soil media. This study designs and implements a prototype of an automatic control system for nutrient solution delivery in kale cultivation using an aeroponic method. The system is equipped with a DHT22 sensor for temperature and humidity monitoring, a TDS sensor for nutrient concentration measurement, and a JSN-SR04T sensor for solution level detection. The actuators include a fan cooler, a DC water pump, and two mini DC pumps, all operating automatically based on sensor data. The fan cooler is activated at temperatures above 26 °C, the mist nozzle sprays the solution when humidity drops below 88% or periodically every 10 minutes, while the mini DC pumps maintain the nutrient concentration and solution level within optimal ranges. Testing was conducted over 29 days with data recorded at 07:15, 12:00, 16:00, and 20:00. The results show that the system can operate automatically, stably, and effectively in maintaining environmental conditions that support the growth of kale plants in an aeroponic system.
Kebijakan Relokasi Warga di Sekitar Proyek Strategis Nasional Toba Caldera Resort: Undang-Undang Nomor 2 Tahun 2012 dan Perspektif Siyasah Dusturiyah Rasyid, Rahmat; Khalid, Khalid
Kartika: Jurnal Studi Keislaman Vol. 5 No. 3 (2025): Kartika: Jurnal Studi Keislaman (November)
Publisher : Lembaga Pendidikan Tinggi Nahdlatul Ulama (LPT NU) PCNU Kabupaten Nganjuk

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59240/kjsk.v5i3.621

Abstract

This study examines the policy of relocating residents living around the Toba Caldera Resort National Strategic Project (PSN), which is part of the development of the Lake Toba super-priority tourism destination. The research focuses on two main aspects: a legal analysis based on Law Number 2 of 2012 concerning Land Acquisition for Development in the Public Interest, and a review from the perspective of Siyasah Dusturiyah, an Islamic political jurisprudence that emphasizes the relationship between public policy, authority, and public welfare. This research employs a normative juridical method using statutory and conceptual approaches, with data collected through library research on legislation, court decisions, academic journals, and classical and contemporary literature on fiqh siyasah. The findings indicate that, normatively, the relocation policy has a clear legal framework regarding compensation and the protection of affected residents’ rights. However, in practice, issues remain, including limited public participation, information imbalance, and unequal compensation. From the perspective of Siyasah Dusturiyah, relocation policies should uphold justice, deliberation, and public welfare to prevent social and economic harm to affected communities
Co-Authors Adhana, Ghina Athaya Adila Nadia Afdal Primanandra Afdhal Muttaqin Aldhi Cahyo Millenio Putro Alimin Mahyudin Anggriani, Rini Annisa Humaira Annisa Yuniasti Annisa Yuniasti, Annisa Ardani, Magfira Arif Budiman Astuti - Astuti Astuti Astuti Astuti Auliya, Khairina Chahyo Shaputra Dahyunir Dahlan Dedi Mardiansyah Dian Fitriyani Dian Milvita Dwi Pujiastuti Dwi Puryanti Elvaswer Elvaswer Feriska Handayani Irka, Feriska Handayani Fitri, Hiliyah Ghina Athaya Adhana Harmadi Harmadi Hiliyah Fitri Humaira, Annisa Husnul Hafifah Rizgita ILHAM FAUZI Imam Taufik Imam Taufiq Iqbal Ramadhan Joni Parhan Kattria Nanda Petma Khairina Auliya Khalid Mahdalena, Feby Husna Marzuki Marzuki MEDIATY Meqorry Yusfi Mohammad Ali Shafii Mora Mora Muhammad Afif Muhammad Afif Muhammad Arif Muhammad Kahfi Mutya Vonnisa Nadia, Adila Naela Amalia Zulfa Nailul Rahmah Pohan Nasution, Wirna Sari Nini Firmawati Nurul Hasanah Okky Frananda Putra Parhan, Joni Pohan, Nailul Rahmah Primanandra, Afdal Putra, Okky Frananda Putri Puspita, Nabilla Putro, Aldhi Cahyo Millenio Rabiatul Adawiyah Rabiatul adawiyah Ramacos Fardela Rezita, Yulia Rini Anggriani Rizgita, Husnul Hafifah Sari Dewi, Andi Ratna Shaputra, Chahyo Siagian, Ardiles Ferry Solly Aryza Sri Handani Sri Oktamuliani Usna, Sri Rahayu Alfitri Wildian Wildian Wirna Sari Nasution Yulia Rezita Yusfi, Meqqory Zulfi, Zulfi