Rafifti, Nasywa Rafifti Salimah (2026) Perancangan Sistem Monitoring Suhu, Kelembapan, dan Massa pada Proses Pengeringan Cabai Rawit (Capsicum frutescens L.) Berbasis Mikrokontroler. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Cabai rawit (Capsicum frutescens L.) merupakan komoditas hortikultura yang memiliki kadar air tinggi sehingga mudah mengalami kerusakan pascapanen. Salah satu metode yang dapat digunakan untuk memperpanjang masa simpan cabai adalah melalui proses pengeringan. Untuk mendukung proses tersebut, diperlukan sistem monitoring yang mampu memantau suhu, kelembapan relatif, dan massa bahan secara real-time. Penelitian ini bertujuan untuk merancang dan menguji sistem monitoring suhu, kelembapan, dan massa pada alat pengering cabai rawit berbasis Arduino Uno. Sistem monitoring menggunakan sensor termokopel tipe K dengan modul MAX6675 untuk pengukuran suhu, sensor DHT22 untuk pengukuran kelembapan relatif (RH), serta zero set yang terintegrasi dengan modul HX711 untuk pengukuran massa. Data hasil pengukuran ditampilkan dan direkam secara real-time menggunakan PLX-DAQ. Hasil validasi menunjukkan bahwa sensor termokopel tipe K memiliki error 0,85%, akurasi 99,15%, dan R² sebesar 0,9973. Sensor load cell setelah validasi memiliki error 2%, akurasi 98%, dan R² sebesar 0,9979, sedangkan sensor DHT22 setelah validasi memiliki error 1%, akurasi 99%, dan R² sebesar 0,9996. Pengujian kinerja sistem pada suhu operasi 70°C, 80°C, dan 90°C menunjukkan bahwa sistem mampu memantau kenaikan dan kestabilan suhu, perubahan massa, serta kelembapan relatif secara kontinu selama proses pengeringan berlangsung. Berdasarkan hasil penelitian, sistem monitoring yang dikembangkan berhasil bekerja sesuai dengan fungsi yang dirancang dan mampu mendukung pemantauan proses pengeringan cabai rawit secara real-time dengan tingkat akurasi yang baik.
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Cayenne pepper (Capsicum frutescens L.) is a horticultural commodity with high moisture content, making it prone to postharvest deterioration. Drying is commonly used to extend its shelf life, and the process requires monitoring of important parameters such as temperature, relative humidity, and material mass. This study aimed to design and evaluate a temperature, humidity, and mass monitoring system for a cayenne pepper dryer based on an Arduino Uno microcontroller. The system employed a K-type thermocouple with a MAX6675 module for temperature measurement, a DHT22 sensor for relative humidity (RH) measurement, and a load cell integrated with an HX711 module for mass measurement. Measurement data were displayed and recorded in real time using PLX-DAQ. Sensor validation results showed that the K-type thermocouple achieved an error of 0.85%, an accuracy of 99.15%, and an R² value of 0.9973. The calibrated load cell achieved an error of 2%, an accuracy of 98%, and an R² value of 0.9979, while the calibrated DHT22 sensor achieved an error of 1%, an accuracy of 99%, and an R² value of 0.9996. Performance testing at operating temperatures of 70°C, 80°C, and 90°C demonstrated that the system was capable of continuously monitoring temperature, relative humidity, and mass throughout the drying process. The results indicate that the developed monitoring system performed well and can be used to support real-time monitoring of cayenne pepper drying with good accuracy.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Arduino Uno, Cabai Rawit, DHT22, Load Cell, Sistem Monitoring, Termokopel Tipe-K. ============================================================= Arduino Uno, Cayenne Pepper, DHT22, Load Cell, Monitoring System, K-type Thermocouple |
| Subjects: | Q Science > QC Physics > QC100.5 Measuring instruments (General) Q Science > QC Physics > QC271.8.C3 Calibration |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Nasywa Rafifti Salimah |
| Date Deposited: | 30 Jul 2026 07:34 |
| Last Modified: | 30 Jul 2026 07:34 |
| URI: | http://repository.its.ac.id/id/eprint/139933 |
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