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Potentials of Grinting Grass (Cynodon dactylon l.) For Biopesticides On Sitophylus Zeamais Motsch Mortality Ratna Mustika Yasi; Riska Fita Lestari
Journal of Agromedicine and Medical Sciences Vol 6 No 1 (2020)
Publisher : Faculty of Medicine, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/ams.v6i1.15618

Abstract

Corn is one of the cereals that has strategic and economic value and has the opportunity to be developed. The attack of the Sitophilus Zeamais Motsch species becomes one of the obstacles in the process of storing corn. This study aims to develop the potential of plant biopesticides from grinting grass to control the warehouse pests of Sitophilus Zeamais Motsch. This research is a laboratory based experimental study. The independent variables in this study were the gram weight of grinting grass extract and the number of Sitophilus Zeamais Motsch pests. The dependent variable in this study was the mortality of Sitophilus Zeamais Motsch. Grinting grass extract is obtained using maceration method. Qualitative and quantitative tests were carried out to test the active compound content of grinting grass. Vegetable biopesticide toxicity tests were carried out using a completely randomized design. The results showed that variations in the weight of grinting grass affect the content of chemical compounds present in the grass. Based on UV-Vis and FTIR spectra, the content of polyphenols, alkaloids, flavonoids, terpenoids, steroids, and saponins contains 20 gr / 100 mL, there are flavonoids as much, 2.38 mg / mL, saponins as 2.04 mg / mL, alkaloids as much as 1.79 mg / mL, polyphenols 3.15 mg / mL, steroids as much as 2.24 mg / mL and terpenoids as much as 3.15 mg / mL. Based on qualitative tests the active compound is evidenced by changes in color and deposition. While based on pest mortality tests, it was found that almost 50 percent of grinting grass extract can kill corn pests within a period of 7 days of observation with an extract concentration of 800 ppm. Key words: Biopesticides, Grinting Grass, Uv-Vis
Analisis Kekuatan Pukulan Atlet Beladiri Menggunakan Metode Pengukuran Matematis dan Alat Ukur Berbasis Mikrokontroller: Analisis Kekuatan Pukulan Atlet Beladiri Menggunakan Metode Pengukuran Matematis dan Alat Ukur Berbasis Mikrokontroller Ratna Mustika Yasi; Mohammad Nurcholis
ZETROEM Vol 1 No 2 (2019): ZETROEM
Publisher : Prodi Teknik Elektro Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/ztr.v1i2.1255

Abstract

The research aims to compare the value of the strike strength of martial arts athletes mathematically and by using measuring instruments. This measuring tool is used to measure the strength of a martial arts athlete that is read by the system. This research was conducted in several steps, namely: literature study, tool testing, results, analysis and discussion, and conclusions. The measuring instrument of the athlete's stroke strength was carried out by a prototype performance test by 8 martial arts athletes with 5 strokes using a front or straight punch with a predetermined target distance. Furthermore, the data will be tabulated and calculated based on a predetermined formula. Based on the results of the study, it can be concluded that the ADC data with the calculated data mathematically have physical similarities. So based on the analysis of the sensors used to capture the incoming pressure on the microcontroller has a patterned value that is the same as the mathematical calculation data. Where the stroke power is calculated mathematically influenced by the mass of the fist, kinetic energy, target distance, time, and force. Whereas the work method of measuring the strength of a martial arts athlete, the FSR sensor receives the incoming pressure in the form of a blow, then the data is sent to the ATmega328 microcotroller for processing, then the data is sent to the seven segment to bring up the incoming pressure value in the form of numbers.
Pengaruh Tegangan Terhadap Besar Kuat Arus Listrik Pada Persamaan Hukum Ohm Ratna Mustika Yasi; Charis Fathul Hadi
ZETROEM Vol 3 No 1 (2021): ZETROEM
Publisher : Prodi Teknik Elektro Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/ztr.v3i1.1331

Abstract

George Simon Ohm (1789-1854) merumuskan hubungan antara kuat aruslistrik (I), hambatan (R) dan beda potensial (V) yang kemudian dikenal dengan hukum Ohm. Hubungan antara tegangan, arus dan hambatan dalam rangkaian dinyataan oleh V = I.R persamaan disamping adalah hokum ohm. Dalam penelitian ini menggunakan metode eksperimen sebagian percobaan pengujian teori hokum ohm. Pada bagian hasil penelitian yang diperoleh melalui hasil uji simulasi menggunakan software proteus. Dari hasil percobaan dan perhitungan diatas bahwa hasil yang di dapat keduanya sama. Dari pengukuran dapat dianalisa sesuai dengan hokum ohm yaitu besarnya arus listrik berbanding terbalik dengan resistansi. Diketahui ketika variable tegangan naik dengan resistansi konstan maka arus juga naik, sebaliknya jika tegangan konstan dan variable resistansi naik maka arus semakin turun.
Rancang Bangun Function Generator Berbasis Digital to Analog Converter Muchlis Abdi; Untung Suryadhianto; Ratna Mustika Yasi
ZETROEM Vol 3 No 2 (2021): ZETROEM
Publisher : Prodi Teknik Elektro Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/ztr.v3i2.1498

Abstract

Abstract - Facts in the field show that many function generator instruments are composed of analog components. Based on the size of its dimensions, this type of function generator has a large size so that it cannot be implemented on small-scale devices. To optimize electronic devices, it is necessary to implement a digital system. Based on this, this research intends to produce a digital to analog converter-based digital function generator using AT-Mega16, LCD2x16 and DAC0808 to determine the frequency and waveform that can be measured directly using an oscilloscope. The use of the C programming language by utilizing the VSM Studio and ProgISP software as commands for AT-Mega16. This research produces a function generator with a frequency range of 30.53 Hz - 20 Khz. The resulting waveforms include sine, checkerboard and ramp/ sawtooth. The function generator is 100% accurate at a frequency of 33 Hz – 200 Hz and the measurement difference appears at a frequency of more than 200 Hz and tends to increase up to a frequency of 20 Khz. In addition to the difference in frequency, there are also waveform defects at frequencies above 2 Khz. Placement of DAC-based function generator oscillation programming commands in sub programs can cause waveform defects. The waveform defect is assumed to be the lag time of the microcontroller when it will perform looping of approximately 12.9 μs. This can add to the difference in the resulting period. The use of commands and variable readings in microcontroller programming requires a time lag so that the difference between the input period and the resulting period is 140 μs, this can be seen in the experimental measurement period from 50 μs to 500 μs. Keywords — Function Generator, Digital to Analog Converter, Microcontroller Abstrak— Fakta di lapangan menunjukkan bahwa instrumen function generator banyak yang tersusun atas komponen analog. Berdasarkan ukuran dimensinya function generator tipe tersebut memiliki ukuran besar sehingga tidak dapat diimplementasikan pada perangkat skala kecil. Untuk mengoptimalkan divice elektronik dibutuhkan implementasi sistem digital. Berdasarkan hal tersebut penelitian ini bermaksud menghasilkan function generator digital berbasis digital to analog converter dengan memanfaatkan AT-Mega16, LCD2x16 dan DAC0808 untuk mengetahui frekuensi dan bentuk gelombang yang dapat diukur secara langsung dengan menggunakan oscilloscope. Penggunan bahasa pemrogaman C dengan memanfaatkan software VSM Studio dan ProgISP sebagai perintah untuk AT-Mega16. Penelitian ini menghasilkan function generator dengan range frekuensi 30,53 Hz - 20 KHz. Bentuk gelombang yang dihasilkan antara lain sinus, kotak-kotak dan ramp/ gigi gergaji. Function generator akurat 100% pada frekuensi 33 Hz – 200 Hz dan muncul selisih pengukuran pada frekuensi lebih dari 200Hz dan cenderung naik sampai pada frekuensi 20 KHz. Selain selisih frekuensi juga terdapat cacat bentuk gelombang pada frekuensi diatas 2 KHz. Penempatan perintah pemrograman osilasi function generator berbasis DAC pada sub progam dapat menyebabkan cacat bentuk gelombang. Cacat bentuk gelombang tersebut diasumsikan sebagai jeda waktu microcontroller ketika akan melakukan looping sebesar kurang lebih 12,9 μs. Hal tersebut dapat menambah selisih periode yang dihasilkan. Penggunaan perintah-perintah dan pembacaan variabel pada pemrograman microcontroller membutuhkan jeda waktu sehingga didapatkan selisih antara periode yang diinput dengan periode yang dihasilkan sebesar 140 μs hal tersebut terlihat pada percobaan pengukuran periode 50 μs sampai dengan periode 500 μs.
Aplikasi Teknologi QR Code Pada Identifikasi Tumbuhan Di Wisata De-Djawatan Charis Fathul Hadi; Ratna Mustika Yasi; cici agustin
TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Vol. 2 No. 1 (2022): TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat
Publisher : Fakultas Teknik, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/tekiba.v2i1.1583

Abstract

De-Djawatan Tourism Destinations are known by various tourists both local and non-local with their natural beauty in the form of large and lush trees that are still beautiful or natural. De-Djawatan tourism does not yet have detailed information either manually or digitally related to the biological and general classification of plants in that location. As smartphone technology develops, the information needed to be very easy to obtain. QR Code is one method to obtain complete information. QR Code is a type of two-dimensional image that displays data in the form of text. This community partnership program aims to provide appropriate technology in the form of the QR code method in determining the identification of plants found in De-Djawatan tourist destinations. This aims to make it easier for tourists to find information on various plants both biologically and in general. The stages of program implementation start from the observation stage, media creation, and implementation. The results of this program using the QR Code can include the identity of the identification results of plants, such as division, order, family, genus and species of plants in the De-Djawatan location. In this QR Code method there are features such as Home, Collection, and Admin. Before the QR Code is created, the document data is encrypted and then used as a QR Code. The result of scanning the QR Code is in the form of a Uniform Resource Locator (URL) that points to the document data. When the URL is executed on the web browser, the system performs a description of the URL, then it is matched with the database, and then displayed to the web browser. The final result is a Document Validation application in the form of a QR Code which is used to convey plant identification information, such as division, order, family, genus and species of plants.
Rancang Bangun Monitoring Gas Belerang Oksida Berbasis Internet of Things Studi Kasus Gunung Ijen Muhammad Arifin Ardi; Fellian Helmi Pristianto; Muhammad Nurkahfi; Ratna Mustika Yasi
Journal of Telecommunication, Electronics, and Control Engineering (JTECE) Vol 1 No 02 (2019): Journal of Telecommunication, Electronics, and Control Engineering (JTECE)
Publisher : LPPM Institut Teknologi Telkom Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/jtece.v1i02.90

Abstract

Gunung Ijen merupakan salah satu Gunung berapi yang memiliki lapangan solfatara danselalu melepaskan gas vulkanik dengan konsentrasi belerang yang tinggi dan dapatmengiritasi saluran pernafasan. Modul sensor gas MQ136 merupakan sensor yang dapatmendeteksi keberadaan gas belerang dengan jarak pembacaan antara 0 sampai dengan 100ppm (parts per million). Modul sensor gas MQ136 difungsikan sebagai komponen aktif yangdigunakan untuk membaca fenomena fisis konsentrasi gas belerang dan IC (IntegratedCircuit) ATmega2560 digunakan sebagai penerima data ADC (Analog to Digital Converter)dari modul sensor gas MQ136. Data ADC yang diterima oleh IC ATmega2560 kemudiankirimkan ke modul ESP8266 Node MCU melalui serial UART (Universal AsynchronousReceiver Transmitter) dan kemudian data tersebut dikirimkan ke server menggunakan aksesinternet melalui modul ESP8266 Node MCU. Sehingga pengguna dapat mengetahuikonsentrasi gas belerang di Gunung Ijen melalui web secara realtime kapanpun dandimanapun pengguna berada. Hasil uji coba menggunakan simulasi miniatur Gunung Ijendan bantun asap gas yang dihasilkan dari asap serbuk flare menunjukkan bahwa prototipdapat berfungsi memonitoring gas belerang dengan kadar konsentrasi tertentu yangditunjukkan pada konsentrasi 0 ppm sampai 15 ppm.
PENGEMBANGAM ALAT KONTROLPENGISIAN AIR OTOMATIS PADA TANDON Andy Sugeng Cahyono; Ratna Mustika Yasi
ZETROEM Vol 1 No 1 (2019): ZETROEM
Publisher : Prodi Teknik Elektro Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/ztr.v1i1.315

Abstract

Dengan kemajuan teknologi seperti sekarang penulis membuat alat yang berfungsi untuk mempermudah manusia dalam menjalankan aktivitas sehari-hari. TRC945 penulis mencoba membuat miniatur pengisian air otomatis yang berbasis. Sistem ini dapat memberikan kemudahan dalam pengisian air dengan sensor air yang akan mendeteksi ketinggian dan kerendaham air pada tandon secara otomatis Sistem ini terdiri atas dan perangkat keras. perangkat keras terdiri dari transistor dan 2PC945 komponen lainnya pada rangkaian driver. memberikan informasi berupa karakter tentang tulisan sapaan kepada orang yang akan memberi ini formasi jika ada gagal sistem pada sensor sebagai langkah keamanan Kata kunci: Air, Teknologi, TRC945
PENGARUH PEMBACAAN SENSOR GAS MQ136 TERHADAP PERSEBARAN DAN PERUBAHAN KECEPATAN UDARA: PENGARUH PEMBACAAN SENSOR GAS MQ136 TERHADAP PERSEBARAN DAN PERUBAHAN KECEPATAN UDARA Fellian Helmi Pristianto; Muhammad Arifin Ardi; Muhammad Nurkahfi; Ratna Mustika Yasi
ZETROEM Vol 1 No 2 (2019): ZETROEM
Publisher : Prodi Teknik Elektro Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/ztr.v1i2.597

Abstract

Sensor gas MQ-136 merupakan sensor yang dapat mendeteksi fenomena fisis konsentrasi gas belerang dengan rentang pembacaan antara 1 sampai dengan 100 PPM (Parts Per Million). Terjadinya perubahan kecepatan udara pada gas menyebabkan konsentrasi gas juga ikut berubah, hasil estimasi perubahan kecepatan udara yang mengenai gas dan diduga akan mempengaruhi kemmapuan pembacaan data oleh sensor. Tujuan penelitian ini adalah untuk mendapatkan analisis perubahan kecepatan udara terhadap pembacaan sensor gas MQ136. Sensor ditempatkan pada beberapa titik dengan pola aliran udara yang dikondisikan. Hasil penelitian menunjukkan terdapat pengaruh perubahan nilai konsentrasi gas SO2 terhadap laju perubahan kecepatan alir udara. Performa pembacaan sensor gas MQ136 dengan selisih pembacaan sebesar 0,3 Ppm.
Rancang Bangun Score Board Digital pada Olahraga Bola Voli Varied Agus Wahyu Triyanto; Ratna Mustika Yasi; Charis Fathul Hadi
ZETROEM Vol 3 No 2 (2021): ZETROEM
Publisher : Prodi Teknik Elektro Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/ztr.v3i2.1477

Abstract

Abstract - The scoreboard is a tool that can provide values ​​or numbers in a match, to show the results of a match in the field of volleyball. Scoreboards that still use conventional technology are very inefficient in changing scores or scores. Therefore, a digital scoreboard was created that uses an android application that is sent via a bluetooth connection which is displayed on the screen. The digital scoreboard displays the score with an LED screen display that can make it easier for the audience to see clearly. Design and build a digital score board in volleyball using Arduino Uno which is connected to several components, by connecting the P10 Panel to the Arduino Uno, then Bluetooth is connected to the Arduino Uno, with the main brain using the Atmega328P-PU IC programmed using the Arduino IDE. The digital score board design has an average device transmission speed of 16 bits per second while the transmission efficiency is 7.69%. In the trial of data retrieval, the transmission speed at a distance of 9 meters, the device could not send a signal due to the disconnection from the smartphone and the scoreboard. This is due to the distance factor that affects the process of sending data by bluetooth and writing coding in programming languages ​​at a distance of 9 meters. Keywords — score board, android, blueooth Abstrak—Papan score board merupakan sebuah alat yang dapat memberikan nilai atau angka di sebuah pertandingan, untuk menunjukan hasil sebuah pertandingan di bidang olahraga bola voli. Papan score yang masih mengunkan teknologi konvesional sangatlah kurang efisien dalam merubah score ataupun nilai. Maka dari itu diciptakanlah papan score board digital yang mengunakan aplikasi android yang dikirimkan melalui koneksi bluetooth yang ditampilkan di layar. Papan score board digital menampilkan score dengan tampilan layar LED yang dapat memudahkan penonton melihat dengan jelas. Rancang bangun score board digital pada olahraga bola voli menggunakan arduino uno yang disambungkan dengan beberapa komponen, dengan cara mengkoneksikan Panel P10 disambungkan ke Arduino Uno, kemudian bluetooth disambungkan dengan Arduino Uno, dengan otak utama menggunakan IC Atmega328P-PU yang diprogram menggunakan Arduino IDE. Rancang bangun score board digital memiliki kecepatan transmisi alat rata rata 16 bit per second sedangkan untuk efisiensi transmisi sebesar 7,69%. Pada uji coba pengambilan data kecepatan transmisi pada jarak 9 meter alat tidak bisa mengirimkan sinyal dikarenakan terputusnya koneksi dari smartphone dan papan score board. Hal ini dikarenakan faktor jarak yang berpengaruh dalam proses pengiriman data oleh bluetooth dan penulisan koding dalam bahasa pemrograman pada jarak 9 meter. Kata Kunci—score board; android; bluetooth.
Rancang Bangun Alat Presensi Fingerprint Berbasis Website Menggunakan NodeMCU Esp8266 Di SMK NU Darussalam Bangun Setyawan; Ratna Mustika Yasi; Untung Suryadhianto
ZETROEM Vol 3 No 2 (2021): ZETROEM
Publisher : Prodi Teknik Elektro Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/ztr.v3i2.1478

Abstract

Abstract - The purpose of designing a website-based fingerprint attendance device using the NodeMCU ESP8266 microcontroller was to utilize digitalization technology that could be a solution to minimize errors or fraud and forgery in the process of recording attendance. Vocational School SMK NU Darussalam Srono was a Vocational School that still applied conventional attendance recording by recording student attendance on the attendance book, so it was urgent to apply computerized recording by apply website-based concepts that were more efficient and facilitated the administrative process. This study used the NodeMCU ESP8266 microcontroller as the control center, the R307 fingerprint sensor and a website-based configuration interface. The process of reporting attendance results were in the form of archive document files that could be downloaded on the website. Based on the implementation of the test, the total average time used to record attendance was 1.2288 seconds while the registration time was 5.496 seconds. Keywords: Attendance System, NodeMCU ESP8266, Website