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Irsan Rahman, Irsan
Prodi Ilmu Hukum, Fakultas Hukum, Universitas Sembilanbelas November Kolaka
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Journal : Dewantara Journal of Technology

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Real-Time and Accurate pH Sensor Based on Internet of Things (IoT) Ikano, Robin; Setiawan, Dewa Gede Eka; Yunus, Muhammad; Demulawa, Meilan; Rahman, Irsan
Dewantara Journal of Technology Vol. 5 No. 2 (2025): Dewantara Journal of Technology Volume 5 Nomor 2
Publisher : Akademi Teknologi Industri Dewantara Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59563/djtech.v5i2.312

Abstract

One important parameter that needs to be considered in water quality is the acidity level (pH) in the water. This study aims to design and determine real-time and accurate pH sensor based on internet of thing (IoT). This system design uses an ESP32 microcontroller and The PH-4502C pH Meter Module sensor. The ESP32 can be connected to the IoT-based Blynk platform, allowing pH data to be monitored in real time via a smartphone. Testing of the IoT-based pH sensor was conducted to evaluate the system's real-time operation under varying distances. Meanwhile, the pH sensor's accuracy was determined by comparing its output with a digital pH meter using buffer solutions at different pH levels. The test results show that the time value required in each range is always constant, namely 1 s. This proves that IoT-based monitoring does not affect the range. Meanwhile, measurement of pH level was the average error value is 3.49%, and the sensor accuracy is 96.51%. These results indicate a low error rate, resulting in high accuracy. The sensor error value of 3.49% is lower than the specified error tolerance limit of <5%. This proves that the pH sensor, with an accuracy of 96.51%, is suitable and reliable for measuring pH in solutions.
Co-Authors Abdul Rahim Afsitin Joan Tatra Agus Bambang Nugraha Ai Siti Nurmiati Ali Mansyur Ali Ramatni Aminah Sagista Ana Riana Andi Indra Wulan Sari Ramadani Anggraini, Yuyun Anis Widyawati Aprianto, Sandi Arizal Hatam Arizal Hatam Arman Paramansyah Aulia Uswa Noor Khasanah Aulia Uswa Noor Khasanah Basrawi Basrawi Basrawi Basrawi Beni Setiawan Darmawati. R Darmawati. R Dedihasriadi Dedihasriadi Dewa Gede Eka Setiawan Erni Erni Faisal Herisetiawan Jafar Gustia Gustia Handayani, Fitrianti Hasrin Hasrin Helviani, Helviani Hendri Khuan Herry M. Polontoh Idris, Rani Ikano, Robin Ikra Ikra, Ikra Imam Prawiranegara Gani Intizam, Ikhsan Isfauzi Hadi Nugroho Iyan Nurdiyan Haris Jahja, Mohamad Jahja, Mohamada Jusafri Kadir Katjong Katjong, Revie Kurnia Katjong, Rizky Wisudawan Khuan, Hendri La Sisi La Sisi Latief, Muh. Fachrul M Mongdong, Novita M Nur Shidiq Mardiana Mardiana Mayasari, Riezka Eka Meidji, Icha Untari Meilan Demulawa Mohamad Hidayat Muhtar Muhammad Ihsan Andi Dagong Muhammad Ihsan Andi Dagong Muhammad Rizal Muhammad Yunus Neks Triani Neks Triani Nekstriani, Nekstriani Novianty, Rica Regina Nur Hidayani Alimuddin Nurazizah Nurikah Nurikah Nurikah, Nurikah Patma Sari Patma Sari Purbaningsih, Yuli Putra, L. M. Ricard Zeldi Putri Maha Dewi, S.H., M.H Rahmat Ari. F Rahmat Ari. F RAHMAT SETIAWAN Raodatul Jannah Rica Regina Novianty Ruhul Amin Sagista, Aminah Sahrul Sahrul Sahrul Sahrul, Sahrul Sakti, La Ode Awal Santyaningtyas, Ayu Citra Sardjana Orba Manullang sari, Patma Sari, Widya Priskila Seno Wibowo Gumbira, Seno Wibowo Sibarani, Sinintha Yuliansih Siburian, Henry Kristian Sumarna, Dadang Suryani, Leony Sondang Suyanto Suyanto Syahdar Baba Syahdar Baba Syahrir, Sasmita Nabila Syamsul Rijal Syarifuddin Syarifuddin Tia Nurapriyanti Wahab Aznul Hidaya Wonua, Almansyah Rundu Yeni Haerani Yuli Purbaningsih Yuliana Zulkhar Naim Zulkhar Naim