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All Journal Techne : Jurnal Ilmiah Elektroteknika EPIC : Journal of Electrical Power, Instrumentation and Control APPA : Jurnal Pengabdian Kepada Masyarakat Musyawarah: Jurnal Pengabdian Masyarakat
Joko Tri Susilo
Universitas Pamulang
Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Other

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Rancang Bangun Vending Machine Air Minum Isi Ulang Berbasis Internet of Things Luki Utomo; Joko Tri Susilo; Pribandono, Andrea Bakti
Techné : Jurnal Ilmiah Elektroteknika Vol. 24 No. 2 (2025)
Publisher : Fakultas Teknik Elektronika dan Komputer Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31358/techne.v24i2.539

Abstract

The design and implementation of a refill drinking water vending machine with a multi-coin acceptor method as a metal coin detector, YF-S201 water flow as a counter for the amount of flowing water, analog TDS meter and analog pH meter as a measure of drinking water quality, NodeMCU ESP32 as a data processor, communication via the internet with the Google firebase platform as an online monitoring data display and the MIT APP Invetor platform as a data display on a smartphone application, measurement data variables are: water temperature (ºC), water pH level (pH), and Total Dissolved Solid in water (ppm). The results of testing this tool show the average accuracy value of the difference in the amount of drinking water calculated with the YF-S201 water flow sensor, in the 250mL category an average accuracy of +0.107% was obtained, the 500mL category an average accuracy of -0.346% was obtained, and the 1000mL category an average accuracy of -2.28%. The measurement results of the drinking water quality monitoring system using the TDS meter V1 analog sensor and the PH-4502C pH meter sensor, obtained fairly accurate results on the TDS parameter and the pH parameter obtained less accurate results with a measurement tolerance of ±5% compared to the calibrated instrument.
Co-Authors Ade Purnawan Agi Tama Agi Tama Ahmad Yanuar Andre Wiranata Arnold Aditya Asyifa Sikowati Bambang Iwan Suryana Bambang Iwan Suryana Dinata, Seflahir Eko Santoso Erik Agustian Yukanda Erik Agustian Yulanda Jan Setiawan M. Syekhurohim Muhamad Dedi Sofyan Muhammad Adam Malik Muhammad Rahmat Darmawan Nurul Safitri Prakoso, Dony Agus Pribandono, Andrea Bakti Prima Ahmad Sunjaya Reza Bahtiar Aji Rosita Hermalinda Dwi Febrianti Seflahir Dinata Seflahir Dinata Setio Aji Sri Mulyani Diana Sunardi Sunardi Sutarmin Sutarmin, Sutarmin Taufan Akbar Utomo, Luki Wahyu Setiawan Winda Putri Ningrum Wisda Fauzan Woro Agus Nurtiyanto