Proses produksi dalam industri farmasi harus mengikuti pedoman yang tertera dalam Cara Pembuatan Obat yang Baik (CPOB). Proses produksi harus dihentikan bila suhu dan kelembaban ruangan produksi tidak memenuhi nilai yang sudah ditentukan dan harus membuat laporan tentang terhentinya produksi. Penelitian ini mengusulkan sebuah model sistem yang dapat mengatur suhu dan kelembaban udara secara otomatis berbasis NodeMCU ESP32 yang dapat memberikan informasi kepada teknisi secara terus menerus. Melalui Web Server phpMyAdmin data suhu dan kelembaban dapat disimpan serta dimonitor dari jarak jauh menggunakan smartphone atau komputer dengan membuka web. Sensor DHT 11 digunakan untuk mendeteksi nilai suhu dan kelembaban dan untuk mengontrolnya digunakan kipas Peltier dan dehumidifier. Dalam penelitian ini dilakukan pengendalian ruangan produksi obat yang memiliki ketentuan kelas C dan D sesuai ketentuan pada CPOB yaitu untuk jenis obat cair di ruang steril. Ruangan produksi obat kelas C memiliki range suhu dari 16˚C sampai dengan 25˚C dan range kelembaban 45% sampai dengan 55%, sedangkan ruangan produksi obat kelas D memiliki range suhu dari 20˚C sampai dengan 27˚C dan range kelembaban dari 40% sampai dengan 60%. Dari hasil pengujian yang dilakukan dapat diketahui bahwa sistem dapat mengendalikan suhu dan kelembaban ruangan secara otomatis bila ada gangguan sekaligus mencatat data waktu kejadian gangguan untuk melengkapi laporan selama proses produksi obat.

In order to manage their blood glucose level, diabetics have to test their blood glucose level regularly. Unfortunately, the current blood glucose measurement device is uncomfortable, painful, event costly for the diabetics; therefore, a lot of effort is given to develop a noninvasive blood glucose meter. We studied the potential of two near infrared wavelength i.e. 1450 and 940 nm as glucose sensor. Each sensor consists of a light emitting diode (LED) as light source, a photodiode that is sensitive to that wavelength, transimpedance amplifier, and filters. An acrylic box size 5cmx1cmx5cm was used as glucose solution container. The LED and photodiode were located at each side of box width, at 1 cm distance. The container was than filled with various concentrations of glucose solution, and the sensor output voltages were measured. The results show that for glucose concentration 0 to 500 mg/dl, the output voltages of the 1450 nm sensor tend to lower when the glucose concentration is higher, therefore it has the potential to be used as glucose sensor. Different result is obtained from the 940 nm sensor where the output voltages were remained the same when the glucose concentration was varied.

The home security automation based on Arduino and Android is a system designed to secure homes from intruders and fire hazards. The system is equipped with an automatic lighting in a living room and porch, as well as a software application installed on the smartphone of the home's owner who gets notification if fire or an intruder is detected, and notices when the living room lights and porch lights are on. The system uses passive infrared sensors (PIRs) to detect intruders and will turn on a buzzer to notify someone. The PIR sensor is also installed in the home main door to automatically turn on the living room lights when the owners enter the house. A gas sensor MQ-2 is placed in the kitchen room to detect gas leak, while a light dependent resistor sensor (LDR) is used to detect light on the porch. All sensors data will be sent to NodeMCU for processing. The Android app with App Inventor through the Ubidots webserver is used for notification. From the observation results, it can be concluded that the five sensors work well and NodeMCU successfully transmits sensor data to the Ubidots web server. The Android app successfully sends notifications to smartphone according to the data received from the webserver. The average time required to notify the Room One's PIR sensor is 2.7 seconds, Room Two's PIR is 2.2 seconds, main door's PIR is 2.2 seconds, LDR sensor is 4.3 seconds, and MQ-2 gas sensor is 4.6 seconds.

No abstract

Prototype of Mobile Main Control Fire Alarm (MCFA) for Medium Fire Risk Areas as at automotive component production department in-service part room, is an active fire protection system that can be a solution to simplify and speed up the time of fire fighting and securing activity during fire accident using daily used media, that is smartphones. In this research, a system was created to detect fires due to smoke and flames, notify firefighters, show the real situation via a smartphone, and activate the fire extinguisher. The system uses an MQ-2 sensor as a smoke detector and a KY-026 sensor as a flame detector connected with Node MCU as the main component completed by an IP camera to monitor the actual condition of fire location. The system consists of an alarm that indicates a fire, fire location information, and a display of the actual conditions from a camera integrated into the MCFA mobile application. The application can control a relay to turn on/off a pump as a fire extinguisher works when the user wants it. The value of smoke concentrations used as an indicator of the occurrence of a fire is when it exceeds 2112 ppm, while the value of light intensity used is when it exceeds 35 lux. Result data of acquisition and monitoring are sent to an Android smartphone using a Wi-Fi network that can be accessed in real-time. From the test results, it is found that the farthest distance that a smoke detector can detect is 25 cm while the flame detector is 65 cm. The average time needed by the system from a notification time until the start extinguishes fire is 3,019 minutes.