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 soil condition monitoring is essential to support effective agricultural management, yet conventional methods often require significant time and cost. This study designs and develops an Internet of Things (IoT)-based system for monitoring soil temperature, moisture, and pH using an ESP32 microcontroller, a 3-in-1 soil sensor, and a DHT22 sensor. Sensor readings are transmitted via WiFi to Firebase Realtime Database using the WiFiManager module for dynamic network configuration and are also displayed locally on a TFT LCD through a second ESP32 unit. The system operates in parallel using FreeRTOS, while a Flutter-based Android application is developed to display real-time data, historical records, and trend charts. Quantitative analysis was carried out by comparing sensor data with manual measuring instruments to calculate the percentage error, and by measuring the data transmission latency to the application. Test results show that the soil sensor has an average error of approximately ±3–5% and the DHT22 sensor ±2–4%, with an average data transmission delay of about ±1.2 seconds. The system operates stably and provides real-time information accessible remotely, making it a practical and cost-effective 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 08:47
Last Modified:	15 Sep 2025 08:47
URI:	https://repository.pnb.ac.id/id/eprint/20921

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