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All Journal Jurnal Penelitian Sains Journal of The Physical Society of Indonesia
Yoanda, Alya Putri
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Chemistry Mathematics Physics

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Rancang Bangun Otomasi Kelembaban Tanah pada Tanaman Anggrek menggunakan ESP32 Berbasis IoT Yoanda, Alya Putri; Komaria, Putri Nur Hidayah; Margareta, Regi Tia; Ayu, Jutira; Rahma, Diana Mauli; Saleh, Khairul; Assa'idah, Assa'idah; Arsyad, Fitri Suryani
Jurnal Penelitian Sains Vol 26, No 2 (2024)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56064/jps.v26i2.969

Abstract

Pada proses pertumbuhan dan perkembangan tanaman dibutuhkan kelembaban tanah yang optimal. Jika tanah kelebihan kadar air akan menyebabkan pembusukan akar, sedangkan jika kekurangan kadar air tanaman tidak dapat berbunga mengalami dehidrasi. Salah satu tanaman yang memerlukan kelembaban tanah yang optimal yaitu tanaman anggrek Cymbidium. Menurut balai penelitian tanaman hias, anggrek dapat tumbuh dengan baik, jika kelembaban tanah berkisar antara 60%-80%. Oleh karena itu, penelitian ini dilakukan untuk merancang bangun otomasi kelembaban tanah untuk tanaman anggrek Cymbidium menggunakan sensor capacitive soil moisture SKU:SEN0193 untuk mendeteksi kelembaban tanah, nodeMCU ESP32 sebagai mikrokontroler berbasis IoT, pompa air mini dc 12 volt sebagai aktuator penyiraman tanaman dan aplikasi blynk untuk memonitoring kelembaban tanah dari jarak jauh. Metode perancangan perangkat keras dan perangkat lunak berhasil dilakukan berjalan sesuai dengan program yang telah dibuat, dibuktikan pada pengujian kinerja alat pompa hidup jika kelembaban tanah <60% dan mati jika kelembaban tanah >80%. Penelitian ini berhasil mengembangkan rancang bangun otomasi kelembaban tanah dengan memperoleh hasil pengujian alat menggunakan sensor capacitive soil moisture SKU:SEN0193 yang memenuhi standar validitas instrument dengan nilai rata-rata akurasi 98,76%, presisi 99,22%, dan error sebesar 0,45 % serta aplikasi blynk dapat menampilkan nlai output secara realtime.
Automation of Air Humidity Monitoring and Control for Orchid Plants Using BME280 Sensor Based on IoT Margareta, Regi Tia; Yoanda, Alya Putri; Rahma, Diana Mauli; Ayu, Jutira; Arsyad, Fitri
Journal of the Physical Society of Indonesia Vol. 1 No. 1 (2025): (April 2025)
Publisher : The Physical Society of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35895/jpsi.1.1.51-60.2025

Abstract

Air humidity is one of the important indicators in supporting the growth and development of plants. Mismatched humidity levels with plant needs can hinder their growth and cause root and stem rot. One type of plant that requires a certain humidity level is the Cymbidium orchid, which ideally needs air humidity between 60% and 80%. However, the fulfillment of this humidity requirement is generally still done manually, requiring time and human labor. To address this issue, an air humidity automation system is needed that can be monitored remotely to ensure the needs of the plants are met optimally. This study aims to design an Internet of Things (IoT) based air humidity automation system using the NodeMCU ESP32 microcontroller as the main control unit programmed through Arduino IDE software. This system has a BME280 sensor as a humidity detector and a mist maker as an actuator that produces cool mist to maintain humidity in the Cymbidium orchid planting space. The system monitoring is done remotely via the Blynk IoT application on smartphones. The research results show that this system successfully implemented the BME280 sensor in air humidity automation, with an average precision value of 98.91%, an accuracy of 98.98%, and an error rate of 0.076%.
Automation of Orchid Soil pH Using IoT-Based Soil pH Sensor (SKJ-001) Komaria, Putri Nur Hidayah; Yoanda, Alya Putri; Rahma, Diana Mauli; Ayu, Jutira; Margareta, Regi Tia; Assa’idah, Assa’idah; Arsyad, Fitri Suryani
Journal of the Physical Society of Indonesia Vol. 1 No. 2 (2025): October 2025
Publisher : The Physical Society of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35895/jpsi.1.2.98-115.2025

Abstract

The growth and development process of cymbidium orchids requires a soil pH of around 5.5–6.5. Otherwise, it will cause low nutrient absorption, resulting in yellow leaves and slow growth, while too high a pH can cause the plant's roots to die. Therefore, this study developed an IoT-based ESP32 soil pH automation design to maintain soil pH stability and reduce orchid growth and development failures due to unstable soil pH. The IoT-based ESP32 soil pH automation design allows remote monitoring of soil pH conditions via a smartphone that has downloaded the Blynk application. The soil pH automation design consists of an SKJ-001 soil pH sensor to measure soil pH, an HC-SR04 ultrasonic sensor to measure solution height, and a 5 VDC pump to circulate NaOH and HCl solutions to stabilize pH. This soil pH automation system has been tested on ten soil samples with an average accuracy of 98.606%, an average precision of 99.192%, and an average error of 0.581%. Based on these results, it can be concluded that the IoT-based ESP32 soil pH automation system is effective and reliable in maintaining soil pH stability, thereby supporting optimal growth and development of cymbidium orchids.
Co-Authors Arsyad, Fitri Arsyad, Fitri Suryani Assa'idah, Assa'idah Assa’idah, Assa’idah Ayu, Jutira Khairul Saleh Komaria, Putri Nur Hidayah Margareta, Regi Tia Rahma, Diana Mauli