Judul: Design and Build a Room Comfort Measurement Tool (Thermal, Audial, and Visual) Based on ESP32 Microcontroller
Abstrak: Mikrokontroler merupakan salah satu alat yang sering diaplikasikan dengan IoT karena bersifat open-source. Penelitian ini bertujuan merancang sistem monitoring kenyamanan ruang menggunakan ESP32. Penelitian dilaksanakan di Advanced Research Laboratory IPB University dan Puskesmas Bogor Utara. ESP32 dikombinasikan dengan DHT22, KY-038, dan BH1750. Prototipe didesain dan diimplementasikan menjadi sistem monitoring dengan programming. Uji kinerja dilakukan untuk mengkalibrasi sensor dan menentukan kenyamanan ruang tunggu Puskesmas. Nilai eror setelah kalibrasi adalah: 2,03% untuk sensor temperatur; 2% untuk sensor kelembapan relatif; 3,15% untuk sensor kebisingan; dan 9% untuk sensor intensitas cahaya. Hasil pengukuran kenyamanan ruang tunggu Puskesmas berbasis ESP32 menunjukkan: temperatur berada di kondisi tidak nyaman dengan temperatur rata-rata 27,87 °C; kelembapan relatif berada di kondisi tidak nyaman dengan kelembapan relatif rata-rata 70,17%; kebisingan berada di kondisi nyaman dengan kebisingan rata-rata 56,12 dB; dan intensitas cahaya berada di kondisi tidak nyaman dengan intensitas cahaya rata-rata 80,99 lux., Microcontrollers are one of the tools that are often applied with IoT because they are open-source. This research aims to design a room comfort monitoring system using ESP32. The research was carried out at the Advanced Research Laboratory of IPB University and the North Bogor Community Health Center. ESP32 combined with DHT22, KY-038, and BH1750. The prototype was designed and implemented as a monitoring system with programming. Performance tests were carried out to calibrate the sensors and determine the comfort of the Puskesmas waiting room. The error value after calibration is: 2.03% for the temperature sensor; 2% for relative humidity sensors; 3.15% for noise sensors; and 9% for light intensity sensors. The results of ESP32-based comfort measurements of the Puskesmas waiting room show: the temperature is in an uncomfortable condition with an average temperature of 27.87 °C; relative humidity is in an uncomfortable condition with an average relative humidity of 70.17%; noise is in comfortable conditions with an average noise of 56.12 dB; and light intensity was in uncomfortable conditions with an average light intensity of 80.99 lux
Keyword: BH1750, DHT22, ESP32, KY-038, kenyamanan ruang, sensor

Judul: Development of Microclimate Monitoring System for Multi-Greenhouse using Internet of Things
Abstrak: Suhu udara, kelembapan udara, dan intensitas cahaya merupakan parameter lingkungan mikro di dalam rumah tanaman yang berpengaruh terhadap pertumbuhan tanaman dan perlu dilakukan pemantauan. Saat ini, Internet of Things (IoT) merupakan teknologi yang mumpuni dan dapat digunakan untuk melakukan pemantauan lingkungan mikro rumah tanaman di berbagai lokasi secara langsung. Tujuan penelitian ini yaitu rancang bangun sistem pemantauan suhu nutrisi, suhu udara, kelembapan udara, dan intensitas cahaya pada berbagai rumah tanaman berbasis IoT. Penelitian ini menggunakan metode System Development Life Cycle (SDLC) yang terdiri dari: (1) analisis kebutuhan sistem, (2) desain sistem, (3) implementasi sistem, dan (4) pengujian sistem. Perangkat elektronika yang digunakan yaitu sensor DHT21, BH1750, DS18B20, dan mikrokontroler ESP32. Hasil perhitungan Root Mean Square Error (RMSE) dan Mean Absolute Percentage Error (MAPE) pada kalibrasi sensor yang rendah menunjukkan nilai eror data dari pembacaan sensor yang kecil. Desain sistem dibuat menggunakan rancangan database dan entity relationship diagram. Sistem diimplementasikan pada berbagai rumah tanaman yaitu dua greenhouse tipe standard peak dan satu plant factory. Berdasarkan hasil uji System Usability Scale (SUS), didapatkan nilai SUS 75,67 yang artinya sistem dapat diterima oleh pengguna dan termasuk kategori sistem yang baik pada kelas B. Kesimpulan dari penelitian ini yaitu sistem pemantauan lingkungan mikro pada berbagai rumah tanaman berhasil dilakukan menggunakan perangkat elektronika berbasis IoT yang dapat diakses oleh pengguna pada web server., Air temperature, air humidity, and light intensity are microclimate parameters in greenhouse that affect plant growth and must be monitored. Currently, the Internet of Things (IoT) is powerful and can be used to monitor microclimate parameters in multi-greenhouse at various locations directly. The purpose of this research is to design and develop a system for monitoring nutrient temperature, air temperature, air humidity, and light intensity in multi-greenhouse based on IoT. This research used the System Development Life Cycle (SDLC) method, which consists of: (1) system requirement analysis, (2) system design, (3) system implementation, and (4) system testing. The electronic devices used were DHT21, BH1750, DS18B20 sensors, and ESP32 microcontroller. The low values of Root Mean Square Error (RMSE) dan Mean Absolute Percentage Error (MAPE) obtained in sensor calibration indicate small data errors from sensors. The system design was made with a database design and entity relationship diagram. The system was successfully implemented in multi-greenhouse which two greenhouse standard peak type and a plant factory. Based on the results of System Usability Scale (SUS) test, the system received SUS score of 75.67, which means that system was acceptable to users and included good category in class B. The conclusion of this research was microclimate monitoring system in multi-greenhouse has been successfully implemented using electronic devices based on IoT that can be accessed by users on a web server.
Keyword: ESP32, Internet of Things, rumah tanaman, sensor lingkungan, sistem informasi

Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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