PROTOTIPE ALAT PENGERING APEL ANNA DENGAN MONITORING SUHU BERBASIS INTERNET OF THINGS

IRMA NUR ZAHRA, . (2025) PROTOTIPE ALAT PENGERING APEL ANNA DENGAN MONITORING SUHU BERBASIS INTERNET OF THINGS. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

Pengeringan buah apel Anna merupakan solusi efektif untuk mengatasi masalah kandungan air yang tinggi dan rasa yang cenderung masam, sehingga dapat meningkatkan nilai tambah dan masa simpan produk. Penelitian ini bertujuan untuk merancang dan membangun prototipe alat pengering apel anna dengan sistem kontrol suhu berbasis PID dan monitoring suhu berbasis internet of things (IoT). Prototipe ini menggunakan mikrokontroler ESP32, sensor SHT31, AC light dimmer, heater, driver motor L298N, kipas DC, motor DC, LCD 16x2, modul step-down LM2596, dan power supply 12V. Sistem kontrol PID menjaga suhu pada rentang 50°C dan 60°C untuk mempertahankan nutrisi apel, sementara data suhu, kelembaban, dan waktu operasi ditampilkan secara real-time melalui aplikasi android berbasis Kodular yang terhubung dengan Firebase Realtime Database. Pengujian dilakukan dengan empat percobaan pengeringan apel anna menggunakan variasi suhu, ketebalan irisan, dan berat awal. Hasil menunjukkan bahwa pengeringan pada suhu 60°C dengan ketebalan irisan 3-4 mm menghasilkan apel kering dengan kualitas terbaik, ditandai dengan warna kuning kecoklatan, tekstur tidak terlalu lembab. Sistem ini berhasil menjaga stabilitas suhu dengan steady-state error sebesar 1,7% pada set point 50°C dan 2,1% pada set point 60°C, serta memungkinkan pemantauan melalui aplikasi android. ***** Drying Anna apples is an effective solution to address the issues of high water content and sour taste, thereby enhancing product value and shelf life. This study aims to design and develop a prototype of an Anna apple drying device with a PID-based temperature control system and Internet of Things (IoT)-based temperature monitoring. The prototype utilizes an ESP32 microcontroller, SHT31 sensor, AC light dimmer, heater, L298N motor driver, DC fan, DC motor, 16x2 LCD, LM2596 step-down module, and 12V power supply. The PID control system maintains temperatures at 50°C and 60°C to preserve the apple's nutrients, while temperature, humidity, and operational time data are displayed in real-time via an Android application developed using Kodular, connected to Firebase Realtime Database. Testing was conducted through four drying experiments with variations in temperature, slice thickness, and initial weight. The results showed that drying at 60°C with a slice thickness of 3-4 mm produced dried apples of the highest quality, characterized by a yellowish-brown color and non-excessively moist texture. The system successfully maintained temperature stability with a steady-state error of 1.7% at a 50°C set point and 2.1% at a 60°C set point, while enabling monitoring through the Android application.

Item Type:	Thesis (Sarjana)
Additional Information:	1). Syufrijal, S.T., M.T. ; 2). Ir. Heri Firmansyah, S.T., M.T.
Subjects:	Teknologi dan Ilmu Terapan > Teknik Elektronika
Divisions:	FT > D IV Teknologi Rekayasa Otomasi
Depositing User:	Users 30311 not found.
Date Deposited:	13 Aug 2025 02:57
Last Modified:	13 Aug 2025 02:57
URI:	http://repository.unj.ac.id/id/eprint/59965

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