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All Journal MAGISTRA Teodolita: Media Komunikasi Ilmiah di Bidang teknik Journal of Telecommunication, Electronics and Control Engineering (JTECE) Journal of Electronic and Electrical Power Application
Dody Wahjudi
Universitas Wijayakusuma Purwokerto
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Transportation Other

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DESIGN AND CONSTRUCTION OF NOISE DETECTION DEVICE WITH ARDUINO-BASED SOUND SENSOR MIC IN THE LIBRARY Wahjudi, Dody; Darmawan, Isra' Nuur; Kholistianingsih; Rifadila Fahmi, Ananda
Journal of Electronic and Electrical Power Applications Vol. 4 No. 1 (2024): JEEPA Volume 4 Nomor 1
Publisher : Program Studi Teknik Elektro Universitas Peradaban

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The library holds the meaning as a place where various information is disseminated, whether printed or recorded in various media such as books, magazines, computers, and others. The library is a public place that provides information that can be visited by anyone, both children and adults are allowed to visit the library. Not apart from library visitors consisting of children to adults, it is not uncommon for disorder to occur inside the library, one of which is noise that can disturb the tranquility inside the library. Unexpected or unwanted noise because it does not match the library context can cause discomfort and disturbance to library visitors. Therefore, based on the considerations above, researchers try to propose research entitled "Design of Noise Detection Device with Sound Sensor Mic in the Library Based on Arduino". The system used utilizes the Arduino UNO microcontroller equipped with DF Player and other supporting devices so that in practice this tool can provide warnings when noise reaches a certain level in order to maintain noise below the predetermined threshold. The result of this research is that this system can operate by detecting the noise level with the KY307 mic sensor then using the Arduino microcontroller to analyze and process sound data to produce information about the noise level. This data is then displayed on the LCD screen and connected to an audio tweeter to provide a warning if the noise level exceeds the threshold.
OPTIMIZATION OF TEACHER AND EMPLOYEE ATTENDANCE AT SMK MA'ARIF BANTARKAWUNG USING GENETIC ALGORITHM Sudaryanto, Eko; Wahjudi, Dody; Darmawan, Isra' Nuur; Mauludin Sodik, Muhammad
Journal of Electronic and Electrical Power Applications Vol. 4 No. 1 (2024): JEEPA Volume 4 Nomor 1
Publisher : Program Studi Teknik Elektro Universitas Peradaban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58436/jeepa.v4i1.1831

Abstract

A good company or agency has disciplined employees and good employee work scheduling. This is very much in line so that a company needs to create effective and appropriate employee work scheduling. SMK Ma'arif Bantarkawung itself still uses a manual system for employee scheduling. The purpose of writing this thesis is to increase knowledge to readers about genetic algorithms and teacher employee attendance using fingerprints. This algorithm works through several stages, initialization, reproduction, evaluation, selection. At the selection stage, individuals who have better traits will be selected to produce the next generation that is also better. According to several studies, scheduling is the process of scheduling the process of organizing, selecting, and determining the time of use of existing resources to produce the expected output within the expected time. The conclusion that can be drawn is the development of a schedule maker feature system, where school managers must enter the name, teacher code, hours, and subjects taught. Change schedule feature, where data managers only need to change data if they change semesters and subject teachers clash. Change data feature, where data managers only need to change data if subject teachers clash. The results of optimizing the absence of teachers of SMK Ma'arif Bantarkawung employees using genetic algorithms show that the scheduling of teacher absences of SMK Ma'arif Bantarkawung employees aims to create a schedule automatically, displaying the day and time on the teacher's schedule. This genetic algorithm completes the scheduling optimally, so that there is little schedule mismatch.
PROTOTYPE OF HOUSE FIRE EARLY DETECTION SYSTEM USING FLAME SENSOR WITH TELEGRAM NOTIFICATION VIA THINGER.IO Wahjudi, Dody; Sudaryanto, Eko; Ayu Margiyanti, Niken Dwi; Darmawan, Isra' Nuur
Journal of Electronic and Electrical Power Applications Vol. 4 No. 2 (2024): JEEPA Volume 4 Nomor 2
Publisher : Program Studi Teknik Elektro Universitas Peradaban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58436/jeepa.v4i2.2020

Abstract

This research is based on the problem of gas leakage which is one of the factors causing fires to occur. Too slow a response of the homeowner to the occurrence of a fire disaster is a factor in fires that can cause loss of life and property that is not small. As an effort to prevent things that are not expected, a system that can detect fires effectively is needed. Designing a fire detection system that supports IoT (Internet Of Things) so that it can be monitored remotely is a suitable preventive alternative. Therefore, the design of a fire detection system using the NodeMCU ESP8266 microcontroller and input Flame sensor that can detect the presence of fire with a minimum detection distance of 10cm with an average voltage output of 5.076V while, the maximum detection distance is 100cm with an average voltage output of 5.066V. MQ-2 sensor to detect gas particles with an average output voltage of 4.99V. Dust sensors can detect paper smoke particles with an average voltage output of 5.066V at a smoke density of 848.90 while cigarette smoke with an average voltage output of 5.038 at a smoke density of 849.87. If one of the sensors detects a potential fire, it will automatically send a message to Telegram accompanied by a buzzer and LED that lights up as a warning sign. Thinger.io software to monitor data changes in the system.
PEMANFAATAN TRANSFORMATOR BEKAS OVEN MICROWAVE MENJADI LAS TITIK (SPOT WELDING) DENGAN KENDALI MENGGUNAKAN DIMMER DAN TIMER Hidayat, Anang Arief; Wahjudi, Dody; ., Kholistianingsih
Teodolita: Media Komunkasi Ilmiah di Bidang Teknik Vol 25, No 2 (2024): Teodolita: Media Komunkasi Ilmiah di Bidang Teknik
Publisher : Fakultas Teknik, Universitas Wijayakusuma Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53810/jt.v25i2.561

Abstract

ABSTRAK Penelitian dilakukan untuk mengetahui karakteristik arus, tegangan, jumlah kumparan atau impedansi dari alat berdasarkan persamaan rasio atau perbandingan dari transformator. mengetahui nilai daya dan effisiensi trafo pada alat las titik. Membuat alat las titik dengan memanfaatkan transformator bekas oven microwave. Mengetahui faktor-faktor yang mempengaruhi hasil pengelasan. Mengetahui kemampuan alat dalam proses pengelasan.. Metode penelitian yang dilakukan adalah dengan cara mengumpulkan data dan informasi berdasarkan literatur yang sudah ada, Pembuatan las titik dengan transformator bekas oven microwave berhasil dilakukan dengan merubah lilitan sisi sekunder dengan menggunakan kabel NYAF 1 x 35 mm dengan jumlah belitan 3 lilit, faktor yang mempengaruhi pengelasan adalah arus, waktu dan ketebalan media, las titik hanya mampu mengelas maksimal dengan ketebalan 2,5mm. Effisiensi trafo adalah 9,54%, Effisiensi trafo yang masih tergolong buruk yaitu 9,54% karena terdapat rugi-rugi daya, maka perlu dilakukan perbaikan. Dengan cara menambah jumlah belitan, besar penampang lilitan dan juga jenis belitan pada trafo sisi sekunder . Ketebalan media yang akan dilas hanya bisa kurang dari 2,5 mm. Kata Kunci : Transformator, Spot welding, Dimmer,Timer
A FAN SPEED CONTROLLER USING IOT BASED ON RASPBERRY Pi AND SMARTPHONE Wahjudi, Dody; Tri, Watiningsih; Sobirin, Abdul Aziz; Daramawan, Isra' Nuur; Prasetyo, Rahardian Luthfi
Journal of Electronic and Electrical Power Applications Vol. 5 No. 1 (2025): JEEPA Volume 5 Nomor 1
Publisher : Program Studi Teknik Elektro Universitas Peradaban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58436/jeepa.v5i1.2274

Abstract

Advences is eletronic techonology have helpen in the development of system that make things easier. One off them is the application of a fan sped control system using a smartphone and knowing number of RPM for each level. This study taks the topic of fan speed control devices and determines the number of rpm for each level using an infrared sensor using an IOT-based nodemcu microcontroller. The purpose of this research is to find out how to design a fan speed control device using an internet of thing-based Raspberry and to find out how the system works on a fan speed control device and find out what the rpm is using an Internet of Things-based Raspberry. The design of a fan speed rpm regulator has been successfully designed and can be applied at home using the IoT system. In the design there is an error of 9.36% at the raspberry input voltage and 17.64% at the raspberry output, 2.3% relay input and 1.84% relay output, 3.4% ESP-01 module input and 1.5 % output on the ESP-01 module, 3.12% infrared input and 65.8% infrared output..
DESIGN AND CONSTRUCTION OF A TEMPERATURE AND HUMIDITY AUTOMATION SYSTEM IN A MUSHROOM HOUSE USING RASPBERRY PI Sudaryanto, Eko; Wahjudi, Dody; Daramawan, Isra' Nuur; Prasetyo, Rahardian Luthfi; Sukowati, Irawan Dharma; Setiawan, Dwi Agus
Journal of Electronic and Electrical Power Applications Vol. 5 No. 1 (2025): JEEPA Volume 5 Nomor 1
Publisher : Program Studi Teknik Elektro Universitas Peradaban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58436/jeepa.v5i1.2275

Abstract

Air temperature and humidity factors can affect the growth and development of oyster mushroom plants. Ideally, oyster mushroom cultivation in highland areas has a low temperature, ranging from 22-28 ° C and humidity> 70%, if the cultivator wants to develop oyster mushroom cultivation has land / location in the lowlands which tends to have high temperatures, the mushrooms will die easily. In lowland locations the average temperature is 33-37 ° C, so there is a need for a tool that can control and monitor the humidity and temperature of the mushroom cultivation room, so that the cultivation room gets the ideal temperature. In this research, the author makes a monitoring system for air temperature and humidity using a DHT-11 sensor in Internet of Things-based oyster mushroom cultivation in an oyster mushroom cultivation house, if the temperature in the room is detected> 28 ° C, the Raspberry Pi microcontroller will give orders to the relay to turn on the fan and water pump. Fans and water pumps function to increase humidity and reduce temperature. This tool can certainly make it easier for us to monitor and control the temperature in the room, so that the temperature in the room can be maintained, so that oyster mushrooms can grow well and have good quality too.
PROTECTION OF TRANSMISSION TOWERS AGAINST LIGHTNING DISTURBANCES ON THE 150 KV STAR-RAWALO-MAJENANG OVERHEAD TRANSMISSION LINE Faozi Firansyah, Bekti; Watiningsih, Tri; Wahjudi, Dody
Journal of Electronic and Electrical Power Applications Vol. 5 No. 2 (2025): JEEPA Volume 5 Nomor 2
Publisher : Program Studi Teknik Elektro Universitas Peradaban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58436/jeepa.v5i2.2570

Abstract

As A Tropical Country, Indonesia Frequently Experiences Extreme Weather, One Of Which Is Lightning, Which Has The Potential To Harm Humans And Electrical Infrastructure, Particularly On High Voltage Overhead Lines (Sutt). Sutt Play A Crucial Role In The Distribution Of Electrical Energy, But Are Vulnerable To Natural Disturbances That Are Difficult To Control. Lightning Strikes Can Damage Equipment And Reduce System Reliability, Necessitating Effective Protection, Such As Grounding Towers, To Channel Lightning Currents To The Ground. The Research Phase Began With A Literature Review, Examining Theories, Standards, And Previous Research Related To Grounding Systems And Lightning Protection On Transmission Lines. Next, Field Data Was Collected, Including Data On Lightning Disturbances On Sutts, The Existing Condition Of Tower Grounding Systems, And The Types Of Protection Installed. Afterward, Grounding Resistance Measurements Were Conducted On Several Towers To Determine The Quality Of The Existing Grounding System. The Results Showed That The Multi-Direct Grounding Method, With An Average Resistance Value Of 2.89 Ω On The 150 Kv Star-Rawalo-Majenang Sutt, Met Standards And Was Proven Effective In Protecting Towers From Lightning Disturbances, Minimizing The Risk Of Damage Due To Back Flashover, And Improving Transmission System Reliability
Co-Authors Abdul Rohman Rusdan Arif Ahmad Ridowi Akhmad Fatkhi Rahmawan Amelia Damayanti Ayu Margiyanti, Niken Dwi Azi, Amanda Budi Prastyo Daramawan, Isra' Nuur DARMAWAN, ISRA' NUUR Darmawan, Isra’ Nuur Dwi Agus Setiawan eko nursiam EKO SUDARYANTO Ervin Dwi Yulianto Faozi Firansyah, Bekti HANGGITA PERMANA Hidayat, Anang Arief Isra' Nuur Darmawan Joko Supriyono Kholistianingsih Kholistianingsih ., Kholistianingsih Kholistianingsih Kholistianingsih Kuswono Hendra Jaya Laksono Trisnantoro Mauludin Sodik, Muhammad Miftakhudin Miftakhudin Muhammad Firly Prasetyo, Rahardian Luthfi Priyono Yulianto RAHMAWATY PRIHANTINY Rifadila Fahmi, Ananda Septia Nugroho, Rudi Sobirin, Abdul Aziz Sudaryanto, Eko Sugeng Santoso SUKARYO, AWAN Sukowati, Irawan Dharma Suprayitno, Tegar Susanto Susatyo Adhi Pramono, Susatyo Adhi TEGUH PRIYANTO Tri Watininggsih Tri Watiningish Tri Watiningsih, Tri Tri, Watiningsih