Garuda - Garba Rujukan Digital

Design and Build a Drum Collector Using a Stepper Motor Arduino Based on Nanofiber Spinning Machine (Electrospinning) Wulan Oktaviani; Sri Wahyu Suciyati; Gurum Ahmad Pauzi; Junaidi Junaidi
Journal of Energy, Material, and Instrumentation Technology Vol 3 No 2 (2022): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v3i2.68

An Arduino-based stepper motor was used to create a nanofiber spinning machine. The hardware for this tool includes an Arduino Mega module, a 4x4 keypad, a TM1637 type seven-segment display, and L298N type stepper motor driver, a 17Hs4401 type stepper motor, a Pushbutton, and an ultrasonic sensor. The software utilized is the Arduino IDE, which is written in C. This tool's operating premise is that the Arduino processes input from the Keypad, and then the Stepper Motor Driver drives the stepper motor, which moves the collection drum up and down. The results of reading the tool will be presented in the seven segments in the form of RPM, altitude, and time. The tool has a height range of 1-10 cm, an RPM range of 10-100 RPM, and a time range of 1 minute to 1 hour. According to the test results, the tool has 99.8 percent accuracy at RPM, 99.92 percent accuracy at the time, and 97.89 percent accuracy at altitude.

Soil Moisture Monitoring System Applied to the Internet of Things (IoT) Based Automatic Watering Equipment in Papaya Fields Lola Adetia; Sri Wahyu Suciyati; Amir Supriyanto; Gurum Ahmad Pauzi
Journal of Energy, Material, and Instrumentation Technology Vol 3 No 2 (2022): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v3i2.99

In this research, the design of an automatic plant watering device and a real-time soil moisture monitoring system was realized in an internet of things (IoT) based papaya farm. The design of this automatic plant watering device aims to create an automatic plant watering system using the FC-28 sensor and a monitoring system using the Blynk application on papaya fields. In the system, the microcontroller used is an Arduino UNO with outputs, namely a dc pump, 16X2 LCD, and Blynk application. Based on the android interface app, the Blynk app can monitor the soil moisture value in real-time every 1 second. Data collection was done by measuring the moisture value in 3 papaya farms with different crop ages, and the tool will water when the soil moisture value read by the sensor is> 350 or <65%. Based on the study results, the device can run well, as shown by the pump can water when the soil moisture value is> 350 or <65 %, and the pump will stop when the soil moisture value is <350 or> 65%.

DESAIN ALAT UKUR KADAR AIR DENGAN METODE KAPASITANSI UNTUK MENENTUKAN KATEGORI LAMA SIMPAN TEPUNG TAPIOKA Syarifuddin Aprian Hidayatullah; Sri Wahyu Suciyati; Gurum Ahmad Pauzi; Arif Surtono
Journal of Energy, Material, and Instrumentation Technology Vol 3 No 2 (2022): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v3i2.100

In this study, water content measurements were carried out using a physical method using a capacitive sensor. Measurement with these two methods aims to get the most efficient method for tapioca flour's water content value. The samples used were six samples of tapioca flour from the way good factory. Each sample was measured using a thermogravimetric method and a capacitive sensor measuring instrument three times per sample. The measurement results produce a polynomial graph with a coefficient of determination of 0.9702. The graph shows that the higher the water content, the higher the value detected by the capacitive sensor. The thermogravimetric method used as a reference takes 6 hours to get results, and the physical method takes less than one minute. To compare measurements, measurements were made using the thermogravimetric method to measure the percentage of water content in tapioca flour. This study indicates that the physical measurement method with a capacitive sensor instrument requires a shorter time than the thermogravimetric method. And the higher the water content, the shorter the storage time.

Rancang Bangun Sistem Pembatas Akses Pintu Masuk Laboratorium Menggunakan Teknologi Radio Frequency Identification (RFID) dan Keypad Ahmad Aziz Arrizal; Sri Wahyu Suciyati; Arif Surtono; Gurum Ahmad Pauzi
Journal of Energy, Material, and Instrumentation Technology Vol 3 No 2 (2022): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v3i2.101

The laboratory access restriction system has been realized using RFID and keypad technology, based on an Arduino microcontroller as a processor. The system has recorded users who entered the room by identifying the RFID tag (transponder) used to open the door from the outside. As for access outside the room, the user only needs to enter the password as identification data on the keypad, and the system would reduce the number of room users and open the door. The output of this system was a solenoid lock which functions as an electronic lock and an LCD to display the status of the RFID reading. The test results showed that the system created can work well. RFID Reader was able to read tags with a maximum distance of 4 cm. The program counter functions well, so the number of users was limited to 15 (50% of the maximum capacity).

Automatization of Weight and Height Measurement Using Ultrasonic Sensors HC-SR04 and Load Cell Based on Arduino UNO at Integrated Services Posts (Posyandu) Syifa Ulyanida; Amir Supriyanto; Sri Wahyu Suciyati; Junaidi Junaidi
Journal of Energy, Material, and Instrumentation Technology Vol 3 No 4 (2022): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v3i4.103

An automatic instrument for measuring weight and height has been realized using the HC-SR04 Ultrasonic Sensor and Arduino Uno-based load cell. This study aims to facilitate the weight and height measurement system to make data collection more efficient and accessible. The instrument is assembled by a frame made of PVC pipe to form a 112 cm high pole. The instrument's top is mounted with an Ultrasonic Sensor to detect height. At the bottom of the instrument, there are four load cells which are assembled with the principle of Wheatstone bridge and then connected to the HX711 module as a signal amplifier to the Arduino to detect weight. The measurement results are displayed on the LCD and the application interface created with Microsoft Visual Studio. The results showed that the instrument could measure and display the results of measuring weight and height well. The error value and accuracy of the Ultrasonic Sensor are 1.09% and 98.913%, respectively. The error values and load cell accuracy were obtained at 1.4% and 98.6%.

Furnace Control System Using the TCN4S Temperature Controller Saputri Wahyuning Dewi; Gurum Ahmad Pauzi; Junaidi Junaidi; Sri Wahyu Suciyati
Journal of Energy, Material, and Instrumentation Technology Vol 3 No 3 (2022): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v3i3.104

In the academic world, especially in research activities at the University of Lampung, there are many things that the application of research requires an instrumentation system design to support these research activities. One example is used to melt metal or other materials. Therefore, this research aims to make a furnace using the Autonics TCN4S temperature controller. The basic configuration of a temperature regulation system consisting of temperature control is TCN4S, SSR (Solid State Relay), and Thermocouples. The results of this study indicate that the maximum temperature that can be achieved is 383°C within 710 seconds in an open space with an electric power of 1032.48 Watt and a strong current of 4.7 A so that the consumption of electricity consumption in the furnace is 0.2 KWh.

DC Motor Speed Control System with PWM (Pulse Width Modulation) Technique Based on Arduino For Centrifugation Equipment Application Ellen Margirahayu; Junaidi Junaidi; Gurum Ahmad Pauzi; Sri Wahyu Suciyati
Journal of Energy, Material, and Instrumentation Technology Vol 3 No 3 (2022): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v3i3.105

A DC motor speed control system with Arduino-based PWM (Pulse Width Modulation) technique has been realized for centrifugation applications. Tool design consists of hardware and software. The hardware used is Arduino Uno, brushless DC motor, ESC (electronic speed control), optocoupler, 4x4 keypad, and seven-segment, and the software used is Arduino IDE. The working principle of this tool is that Arduino will process input from the keypad and provide a signal to the ESC (electronic speed control) to drive a brushless DC motor. The optocoupler sensor will detect motor rotation, and the data obtained will be displayed on the seven segments. This tool works with a speed range of 4,000 to 7,000 RPM. Rotational speed testing has been carried out using the DT-2234C+ tachometer. The test results show the highest error occurs at a speed of 5,000 RPM which is 3.62% and the lowest error occurs at a speed of 6,000 RPM at 1.01%.

Prototype Measuring Levels of Dissolved Ammonia Based on TSL2561 Sensor Calibrated Thermo Scientific Genesys 30 Visible Spectrophotometer Titin Putri Aripta; Sri Wahyu Suciyati; Amir Supriyanto; Junaidi Junaidi
Journal of Energy, Material, and Instrumentation Technology Vol 3 No 3 (2022): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v3i3.110

In this study, a prototype measuring instrument for dissolved ammonia levels based on the TSL2561 sensor and calibrated thermo scientific Genesys 30 visible spectrophotometers has been realized, which aims to create a system for reading dissolved ammonia levels. This measuring instrument uses a violet LED as a light source, Arduino UNO as the central processor, and an I2C LCD to display measured values. This research was carried out by reading sensor tests on artificial instruments and spectrophotometer with dissolved ammonia samples with levels varying from 0-0.3 mg/l to obtain an equation for converting the absorbance value of the artificial measuring instrument into the dissolved ammonia level value, which was implemented in the Arduino program. Furthermore, an artificial measuring instrument is applied by measuring the dissolved ammonia level in the wastewater sample, namely the wastewater from the shrimp seeds tank, artemia tank, and tilapia tank. This measuring instrument has a measurement range from 0-0.3 mg/l. The sensor test results show that the greater the dissolved ammonia level, the greater the absorbance value. The results of the application of artificial measuring instruments obtained the value of dissolved ammonia levels in the wastewater of the shrimp seeds tank of 0.2811 mg/l, the wastewater of the artemia tank of 0.0672 mg/l, and the wastewater of the tilapia pond at 0.0156 mg/l. Based on the calculation results, it was obtained that the average accuracy and precision for the shrimp seeds tank wastewater was 98.63% and 98.47%, the Artemia tank wastewater was 97.72% and 98.08%, while for the pond wastewater tilapia by 95.71% and 99.74 %.

Smart Greenhouse Monitoring With Soil Temperature and Humidity Control on Internet of Things (IoT) Based Orchid Plants Feri Aditya Ridwan Mas; Sri Wahyu Suciyati; Gurum Ahmad Pauzi; Junaidi Junaidi
Journal of Energy, Material, and Instrumentation Technology Vol 3 No 3 (2022): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v3i3.111

Research on monitoring systems with control has been developed with several different inputs and outputs. This research has realized a smart greenhouse monitoring tool with temperature and soil moisture control on orchid plants based on the Internet of Things (IoT). This study aims to create a monitoring tool for temperature, air humidity, soil moisture, and water level. In the system, the microcontroller used is Wemos D1 R1, with inputs in the form of a DHT-11 sensor to measure air temperature and humidity, a soil moisture sensor to measure soil moisture, and an ultrasonic sensor to measure the water level in the containers. The resulting system output is in the form of pump and fan control. Based on the results of sensor testing, the accuracy of the DHT-11 sensor is 99.97%, the error is 0.03%, the soil moisture sensor is 98.63% accurate, the error is 1.37%, and the ultrasonic sensor is 97, 61% with an error of 2.89%. Based on the research results, the system can run well, as shown by Thingspeak, and the website smartgreenhouseanggrek.weebly.com can receive the results of monitoring sensor data using an internet connection. The tool will carry out the process of wateringplants when the soil moisture value read by the sensor is 20% and will stop watering when the sensor reads the soil moisture value reaches >= 50%. In contrast, the air temperature control is done by turning on the fan if the temperature reaches 30° C.

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