Sistem Monitoring Suhu, Kelembaban, dan Ph Tanah Menggunakan Teknologi Internet of Things (Iot)

Diatmika, I Gusti Kade Arya (2025) Sistem Monitoring Suhu, Kelembaban, dan Ph Tanah Menggunakan Teknologi Internet of Things (Iot). Undergraduate thesis, Politeknik Negeri Bali.

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Abstract

Accurate and real-time monitoring of soil conditions is essential to support effective agricultural management, while conventional methods often require considerable time and cost. This study designed and developed an Internet of Things (IoT)-based system for monitoring soil temperature, soil moisture, and soil pH using an ESP32 microcontroller, a 3-in-1 soil sensor, and a DHT22 sensor. Measurement data are transmitted via WiFi to the Firebase Realtime Database using the WiFiManager module for dynamic network configuration and displayed locally on a TFT LCD through a second ESP32. The system runs in parallel using FreeRTOS, while an Android application built with Flutter is used to display real-time data, history, and trend graphs. Quantitative analysis was carried out by comparing sensor readings with manual measuring instruments to calculate the percentage error and measuring the data transmission latency to the application. The test results showed that the 3-in-1 soil sensor had an average error of 4.54% for soil temperature, 7.41% for soil moisture, and 3.04% for soil pH, while the DHT22 sensor had an average error of 4.39% for air temperature and 5.06% for air humidity. Delay testing showed an average latency of 1.32 seconds. The system is proven to operate stably and provide real-time information accessible remotely, making it a practical and economical solution to support soil condition monitoring for precision agriculture.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Iot, ESP32, Soil Temperature, Soil Moisture, Soil Ph, Firebase, Freertos.
Subjects:	Ilmu Teknik Ilmu Teknik > Teknik Elektro Dan Informatika Ilmu Teknik > Teknik Elektro Dan Informatika > Teknik Elektronika Ilmu Teknik > Teknik Elektro Dan Informatika > Teknik Kendali (Atau Instrumentasi dan Kontrol) Ilmu Teknik > Teknik Elektro Dan Informatika > Teknik Perangkat Lunak
Divisions:	Jurusan Teknik Elektro > Prodi D4 Teknik Otomasi > Skripsi
Depositing User:	I Gusti Kade Arya Diatmika
Date Deposited:	15 Sep 2025 11:49
Last Modified:	15 Sep 2025 11:49
URI:	https://repository.pnb.ac.id/id/eprint/20975

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