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PERANCANGAN TIMBANGAN KOMODITI PERTANIAN BERBASIS MIKROKONTROLER ATMEGA 16 DENGAN TAMPILAN PC DAN OUTPUT SUARA Siti Amra; Arif Indra Mulia; Desita Ria Yusian TB
JOURNAL OF INFORMATICS AND COMPUTER SCIENCE Vol 8, No 2 (2022): OKTOBER 2022
Publisher : Ubudiyah Indonesia University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33143/jics.Vol8.Iss2.2597

Abstrak—Timbangan itu sendiri adalah sebuah alat bantu yang digunakan untuk mengetahui berat Dalam hal pengukuran massa, pengukuran massa biasanya dilakukan secara manual yaitu dengan menggunakan suatu benda. Dalam pemanfaatannya timbangan digunakan diberbagai bidang salah satunya dibidang perdagangan, seperti halnya pedagang buah dipasar yang kebanyakan masih menggunakan timbangan manual. Dengan demikian dirancanglah suatu alat timbangan elektronik menggunakan mikrokontroler Atmega16 sebagai pengendali. Alat di rancang unuk menimbang berat benda secara otomatis. Dengan menggunakan satu buah sensor yaitu load cell. Sensor di letakkan di tengah agar alat dapat me nimbang secara baik. untuk mendeteksi adanya beban sensor akan bekerja secara otomatis. sensor akan membaca dan mengirimkan sinyal ke mikrokontroler yang kemudian berat benda tersebut ditampilkan darri beban akan di tampilkan LCD LCD. Nilai yang di tampilkan hasil pengeluaran berat benda, hasil pengeluaran berat benda, dan keluaran suara pada tampilan PC dalam bentuk berat dan harga suatu benda. Pada alat ukur berat benda timbangan terdapat hasil error yang disebabkan karena kelebihan berat pada beban maksimum 150 kg sehingga mendapat hasil yang di kategorikan error.Kata kunci : Timbangan , Sensor, Mikrokontroler, LCD, Dan Output suara.Abstrak The scale itself is a tool that is used to determine weight. In terms of mass measurement, mass measurement is usually done manually by using an object. In its utilization, scales are used in various fields, one of which is in the field of trade, as well as fruit traders in the market, most of whom still use manual scales. Thus, an electronic weighing device was designed using the Atmega16 microcontroller as a controller. The tool is designed to weigh objects automatically. By using one sensor, namely the load cell. The sensor is placed in the center so that the tool can weigh properly. to detect a load the sensor will work automatically. the sensor will read and send a signal to the microcontroller which then the weight of the object is displayed from the load will be displayed on the LCD LCD. The value displayed is the result of the expenditure of the weight of the object, the result of the expenditure of the weight of the object, and the sound output on the PC display in the form of the weight and price of an object. On the weighing instrument, there is an error result caused by being overweight at a maximum load of 150 kg so that it gets results that are categorized as errors.Keywords: Scales, Sensors, Microcontroller, LCD, And Sound Output.

ANALISA IMPLEMENTASI PROMETHEE PADA SELEKSI CALON KETUA PEMA UNIVERSITAS UBUDIYAH INDONESIA Desita Ria Yusian TB; Irvan Safiki; Siti Amra
JOURNAL OF INFORMATICS AND COMPUTER SCIENCE Vol 8, No 2 (2022): OKTOBER 2022
Publisher : Ubudiyah Indonesia University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33143/jics.Vol8.Iss2.2599

Abstrak - Seleksi bakal calon ketua Pemerintahan Mahasiswa (PEMA) di Universitas Ubudiyah Indonesia masih melakukan proses seleksi secara manual sehingga dapat memperlambat proses seleksi terhadap bakal calon ketua PEMA. Untuk mengatasi permasalahan yang terjadi maka perlu diadakan pembenahan secara langsung dengan menerapkan sistem pendukung keputusan seleksi bakal calon ketua PEMA dalam membantu proses seleksi guna mendapatkan hasil yang tepat dan akurat. Salah satu algoritma yang dpat diterapkan dalam mempercepat proses pengambilan keputusan Preference Ranking Organization Method for Enrichment Evaluation (PROMETHEE) yang dibangun untuk metode dalam memecahkan permasalahan yang bersifat multikriteria dengan cara menentukan urutan (prioritas). Hasil dari implementasi metode promethee pada kasus seleksi bakal calon ketua PEMA dimana bakal calon 4 (A4) memiliki urutan peringkat pertama dengan nilai 0.6, bakal calon 1 (A1) memiliki urutan peringkat kedua dengan nilai 0.133333, bakal calon 2 (A2) memiliki urutan peringkat ketiga dengan nilai -0.2 dan bakal calon 3 (A3) memiliki urutan prioritas keempat dengan nilai -0.533333. Dari hasil tersebut maka disimpulkan bahwa sistem pendukung keputusan metode promethee menunjukkan 78% dapat memberikan hasil yang sesuai dalam proses seleksi bakal calon ketua PEMA.Kata Kunci : Seleksi Ketua PEMA, Sitem Pendukung Keputusan, PROMETHEE.Abstract - The selection of prospective student government chairpersons (PEMA) at the University of Ubudiyah Indonesia is still carrying out the selection process manually so that it can slow down the selection process for prospective PEMA chairpersons. To overcome the problems that occur, it is necessary to carry out direct improvements by implementing a decision support system for the selection of prospective PEMA chairpersons in assisting the selection process in order to get precise and accurate results. One of the algorithms that can be applied in accelerating the decision-making process Preference Ranking Organization Method for Enrichment Evaluation (PROMETHEE) is built for a method for solving multi-criteria problems by determining the order (priority). The results of the implementation of the promethee method in the selection case for the candidate for PEMA chairperson where candidate 4 (A4) has the first rank order with a value of 0.6, candidate 1 (A1) has the second rank order with a value of 0.133333, candidate 2 (A2) has a rank order third with a value of -0.2 and prospective candidate 3 (A3) has the fourth priority order with a value of -0.533333. From these results it was concluded that the decision support system of the promethee method showed 78% of being able to provide appropriate results in the selection process for prospective PEMA chairpersons.Keywords: Decision Support System, PROMETHEE.

PEMBUATAN ALAT UKUR GETARAN MENGGUNAKAN SENSOR ACCELEROMETER BERBASIS MIKROKONTROLER ATMEGA16 DENGAN TAMPILAN PC Siti Amra; Murdani Murdani; Desita Ria Yusian TB; Ir Azhar MT
JOURNAL OF INFORMATICS AND COMPUTER SCIENCE Vol 8, No 2 (2022): OKTOBER 2022
Publisher : Ubudiyah Indonesia University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33143/jics.Vol8.Iss2.2600

Abstract—Penggunaan ilmu pengetahuan dan teknologi semakin meningkat terutama dibidang elektronika. Salah satunya dengan berbagai macam penggunaan sensor accelerometer. Sensor accelerometer adalah sensor untuk mengukur kecepatan getaran. Getaran adalah gejala mekanika, dinamik yang mencakup periode gerak osilator di sekitar posisi referensi atau berupa gerakan bolak-balik yang digambarkan sebagai amplitudo atau simpangan terjauh dari titik setimbang. Untuk mendeteksi getaran dikembangkan berbagai alat berupa sensor getaran. Terdapat banyak metode atau teknik yang dipakai untuk mendeteksi getaran, Alat ukur getaran saat ini sangat dibutuhkan, seperti deteksi getaran mesin,dan benda-bedan yang menimbulkan getaran. Membuat alat ukur getaran menggunakan sensor acceleromter yang portebel dengan tegangan keluaran X,Y adalah 1,61 Volt dan Z 2,45 Volt Hasil getaran akan ditampilkan pada LCD dan grafik akan ditampilkan pada tampilan PC, hasil dari pengukuran dapat di simpan di data base (ms.excel),Dengan Frekwensi 67 Hz.Kata kunci: Getaran, Alat ukur, AccelerometerAbstract— The use of science and technology is increasing, especially in the field of electronics. One of them is by using various types of accelerometer sensors. The accelerometer sensor is a sensor for measuring the speed of vibration. Vibration is a mechanical, dynamic phenomenon that includes a period of motion of the oscillator around a reference position or in the form of back and forth motion which is described as the amplitude or the furthest deviation from the equilibrium point. To detect vibration, various tools have been developed in the form of a vibration sensor. There are many methods or techniques used to detect vibrations. Vibration measuring instruments are currently needed, such as the detection of engine vibrations, and objects that cause vibrations. Make a vibration measuring instrument using a portable accelerometer sensor with an output voltage of X, Y is 1.61 Volts and Z 2.45 Volts. The vibration results will be displayed on the LCD and the graph will be displayed on the PC display, the results of the measurements can be stored in the data base ( ms.excel), with a frequency of 67 Hz.Keywords: Vibration, measuring instrument, Accelerometer

Penerapan Kendali Fuzzy dalam Pengembangan Stimulasi Listrik untuk Mempercepat Penyembuhan Luka Rahmawati; Achmad Arifin; Duti Sriwati Aziz; Gunawan; Raisah Hayati; Siti Amra
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 14 No 4: November 2025
Publisher : This journal is published by the Department of Electrical and Information Engineering, Faculty of Engineering, Universitas Gadjah Mada.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jnteti.v14i4.20232

Chronic wound healing, such as diabetic ulcers, requires an innovative approach, where electrical stimulation (ES) has proven effective but is still dominated by an open-loop system that is less adaptive. This study aims to develop a closed-loop electrical stimulation system based on fuzzy control that adjusts the stimulation duration dynamically. The system is designed by integrating an electrical stimulator, fuzzy control, and a wound area reduction model. The Atmega32 microcontroller is used to regulate stimulation with fuzzy control. Preclinical testing on experimental animals to compare the effectiveness of the control method (without therapy), open-loop, and closed-loop. The test results show that the electrical stimulator circuit works according to specifications, with a signal frequency of 20 Hz, a pulse width of 250 µs, and a boost converter output voltage of 50V. The error in the maximum stimulation duration is 2.5%, which is still within the safe limit for wound therapy. Fuzzy control is proven to be effective in adjusting the stimulation duration based on wound development, with an estimation error of only 0.3%. Preclinical testing showed that the fuzzy-controlled closed-loop system accelerated wound healing with a 64–67% reduction in wound area in seven days, higher than open-loop (44–50%) and no therapy (37.5%). Closed-loop also produced the highest tissue density (75–100%) compared to open-loop (50%) and no therapy (25–50%), proving its effectiveness in accelerating tissue regeneration. Fuzzy-controlled closed-loop electrical stimulation was able to accelerate wound healing up to 1.5 times faster than the open-loop method and almost twice as fast as no therapy. Fuzzy control adjusted the stimulation duration in real-time, avoiding over- and understimulation. This system is more effective than conventional methods and has the potential to increase the acceleration of wound healing.

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