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All Journal BERKALA FISIKA Bulletin of Scientific Contribution : Geology IJOG : Indonesian Journal on Geoscience Program Kreativitas Mahasiswa - Karsa Cipta ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika Sawala : Jurnal pengabdian Masyarakat Pembangunan Sosial, Desa dan Masyarakat SWAGATI: Journal of Community Service Jurnal Geosaintek
Kusnahadi Susanto
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Religion Arts Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Physics Social Sciences Other

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TTGO LORA ESP32: SOLUSI NIRKABEL UNTUK PROTOTIPE PENGENDALIAN PENGINJEKSI ARUS PADA METODE GEOLISTRIK Nurpadillah, Sifa; Susanto, Kusnahadi; Mukhtar, Husneni; Cahyadi, Willy Anugrah; Ikhsan, Akhmad Fauzi; Nurdin, Agung Ihwan; Razzak, Taufiq Abdul; Rahmawati, Dien
TEKTRIKA Vol 8 No 2 (2023): TEKTRIKA Vol.8 No.2 2023
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v8i2.6864

Abstract

Rock resistivity properties obtained using the geo-electric method are used to estimate subsurface soil structures and rock types in geophysical exploration. The data collection process using this geoelectrical method is often carried out in remote areas by installing current electrodes (AB) and potential electrodes (MN) up to 1.5 km away. The success of exploration is highly dependent on the current injection source used. The greater the current used, the deeper exploration that can be carried out. However, the required distance between AB and MN electrodes is getting further and the ABMN electrodes are connected by a cable. This causes the process of collecting data at further distances of electrodes to become more complex. This study discusses a current source prototype for geo-electric methods that can communicate wirelessly with TTGO LoRa ESP32 as a controller. This prototype provides three injection power options: full, medium, and low. Current injection is carried out on a dummy resistor, which acts as earth. When injecting current into the dummy resistor, current measurements obtained using the INA219 sensor gave very consistent measurement results because it had a relative error of < 1% (on 50 ? and 300 ? dummy resistors). When measuring a current of 0.0066 A, the relative error increases to 1.5%. But it still shows good consistency in the INA219 measurement results. In addition, the MAPE for all measurements is within < 10%, which means that the INA219 readings provide excellent results. Key Words: current injector, geo-electrical, INA219, voltage divider, TTGO LoRa.
Co-Authors Achmad Rizal Ahmad Zaenudin Aliyan, Silmi Afina Asep Harja Asep Harja, Asep Aziz, Burhanuddin Azzam, Muhammad Zharfan Bambang Setia Nugroho Dien Rahmawati Diena Yudiarti Dini Fitriani, Dini Eka Afrima Sari, Eka Afrima GERALDI, ARIK Hesty Susanti Husneni Mukhtar Ihsan, Haikal Muhammad Ikhsan, Akhmad Fauzi Irwan Ary Dharmawan Kartika Hajar Kirana, Kartika Hajar Ma’arif, Farham Rezqi Muhammad Wahyudin, Muhammad Nurdin, Agung Ihwan Pamungkas, Totok Doyo Razzak, Taufiq Abdul Sasti Dwi Tungga Dewi, Sasti Dwi Tungga Sheizi Prista Sari Sifa Nurpadillah Siska Pratiwi SUDIYONO, OOY ARIE Suryo Adhi Wibowo Suto Setiyadi Syarafina, Zhafirah Nurul Teuku Zulkarnain Muttaqien WAHJU GUNAWAN Wahmisari Priharti Willy Anugrah Cahyadi Yanti Rubiyanti Yoga Pujiraharjo Yudi Rosandi Zahra Inatsa Hauna, Zahra Inatsa