Electrical Network Systems and Sources

Soldering Design Using DC Battery Power Source

Faishal Azmi Al hakim — 2025-06-02

The purpose of this research is as a technological development to encourage the need for a more practical and portable soldering iron. This research aims to design and build a soldering iron that uses battery power, so that it can be used in various locations without relying on conventional electricity sources. The design method includes the selection of main components such as heating elements, lithium-ion batteries and battery safety systems. The assembly process is carried out by considering energy efficiency, safety, and user comfort. The test results show that the battery-based solder is able to reach an optimal working temperature of 277.75 in 135 seconds and has a fairly long usage duration of 2.77 hours according to the 12V 9Ah battery capacity. This tool is considered quite effective for the needs of maintenance and repair of electronic devices in the field and facilitates user mobility.

Implementation Barcode Scan of Polnep Electro Library Book Borrowing based on ESP32 and Google Spreadsheets

Uday Fitriansyah — 2025-06-02

Libraries are media or institutions that act as library materials, in the form of written materials such as books, journals, and magazines. This media is used as a vehicle for education, research, and preservation of information that is arranged systematically with certain rules. Some libraries still use book borrowing and returning transactions in writing in books, one of which is the library of the Electrical Engineering Department of Pontianak State Polytechnic. This research is intended to simplify the transaction process in the library. The process of borrowing library books and reading membership uses a barcode scanner as input or sensor. Google spreadsheet is used as data storage received from the controller. The process that is passed is the process of data collection of books, the process of borrowing transactions and returning books.

Design and Construction of Digital Electronics Learning Modules to Improve Student Learning Efficiency

Habil Rezar — 2024-06-01

This research aims to develop learning methods at Pontianak State Polytechnic to improve practicum
efficiency and student understanding in digital electronics courses. The research includes making
learning modules in the form of trainers, antibounce switches, system trials, and tool demonstrations.
The developed module is equipped with a guidebook and includes power blocks, inputs, outputs, circuits,
as well as guidebooks with logic, combinational, and sequential gate circuits. Data was collected through
testing the efficiency of the module by comparing the usage time of the module and IC with the
protoboard, as well as a survey to 3rd semester Electrical Engineering students using Google Forms.
Quantitative descriptive data analysis shows that assembly with the module is faster than with manual
IC. The module feasibility test results showed a percentage of 88% on material, 89% on technical, 92%
on feasibility, and 91% on benefits, indicating that the module is very feasible to use as a companion to
digital electronics courses.
Keywords: Learning Module, Digital Electronics, Logic Gate, Combinational Circuit, Sequential
Circuit

Design and Construction of Prayer Time Schedule Using Arduino Uno-Based P10 Matrix Led Panel as Information Media in Al-Muhtadin Surau

Syarif Ishak Allkadri — 2024-06-01

ABSTRACT

Followers of the Islamic religion believe in the obligation to pray 5 times a day, at which time they are carried out. For this reason, knowing the 5 daily prayer times, namely dawn, midday, Asr, Maghrib and Isha is very important for every follower of the Islamic religion in carrying out the 5 daily prayers correctly and as well as possible. For this reason, it is very important to have a prayer schedule. Nowadays, in many mosques and houses, there are usually calendars and displays of eternal prayer times, but the display is so small that it cannot be seen from a very long distance. So many people want to provide information with various interesting media such as prayer time schedules and much more. This makes it easy for people to recognize the device with various other supporting devices. Replacing data text and assembling a prayer time schedule display using a P10 LED matrix panel is currently still relatively difficult for ordinary people. That's why a prayer time schedule was created with the help of Arduino Uno. Prayer schedule information can be updated via Android cellphone with Bluetooth communication. On Android phones, an application can send characters to change the text printed on the P10 led matrix panel. The information sent will be received in the Bluetooth module and processed in the microcontroller and then displayed on the panel. This tool is expected to make it easier for users to view prayer time schedules and change information on prayer time schedules via an Android cellphone with a Bluetooth connection. The aim of this research is that the use of technology from Android and Arduino can be collaborated to make changing prayer time schedule data on the P10 panel faster. and it's easy now.

Keywords: Prayer Times Schedule, Led Matrix Panel p10, Arduino uno

Design and Development of a Smart Dispenser with RFID Based on Arduino

Rizki Nurhasanah — 2024-06-01

The water supply arrangement in the TRSE Laboratory at Politeknik Negeri Pontianak needs to be improved to address the rapid depletion of water. An Arduino-based smart dispenser was developed with an RFID sensor for user identification and water usage recording, as well as a proximity sensor to ensure the presence of a container before water is dispensed. This system is equipped with a keypad for selecting the volume of water and an LCD to display the daily quota of 700 ml. The pump automatically shuts off when the quota is exhausted or the container is not detected. Testing shows that the system limits water usage according to the quota, with an average error of 6% (100 ml) to 0.857% (700 ml). Accuracy increases with larger volumes, ensuring more efficient water distribution. This smart dispenser becomes an effective solution in water management in the laboratory.

Keywords: Smart Dispenser, Arduino, RFID Sensor, Proximity Sensor.

Line Follower Forklift Robot Prototype with Fuzzy Logic Method Based on Internet of Things

Arya Pratama Yasfa — 2025-09-07

This research developed a prototype forklift line follower robot that applies the fuzzy logic method and is integrated with the Internet of Things (IoT) technology. fuzzy logic and integrated with Internet of Things (IoT) technology. This innovation This innovation is intended to improve efficiency and safety in material material management system in an industrial environment. The robot is designed to follow path using eight photodiode sensors and detects the color of objects through the TCS3200 sensor. A fuzzy logic method is used to handle uncertainty and dynamics in the trajectory, enabling more adaptive motion control. dynamics on the trajectory, allowing for more adaptive motion control. Sensor calibration showed a noticeable voltage difference between black (4.0 V) and white (0.16 V), with the use of a 10 kΩ resistor. Color sensor capable of recognizing six colors of objects based on a range of RGB values. The system is also capable of controlling the speed of the DC motor within the range of 0-255 PWM. Through IoT integration, information such as speed, object color, and delivery status can be monitored in real-time from a mobile device. can be monitored in real-time from a mobile device.

Keywords :, Forklift Robot, Line Follower, Fuzzy Logic, Internet of Things, Automation.

MONITORING AND CONTROL OF AN AUTOMATIC SHOE DRYER BASED ON IoT

Angga — 2024-06-01

Conventional shoe drying methods generally utilise sunlight and aeration, but are often constrained by unpredictable weather and low light intensity. This causes the drying process to take a long time, even up to a week, and risks damaging the shoes, such as peeling sole glue and fading colours. In addition, the level of dryness of the shoes becomes uneven. To overcome these problems, an automatic shoe dryer system was designed using ESP32 as a monitoring and control tool. This system is equipped with an AC heater as an artificial heater, a DHT22 sensor to detect the temperature and humidity in the drying room, a 1-phase AC motor as a centrifugal force driver to reduce the moisture content in the shoes, and a 16x2 LCD to display real-time temperature and humidity data. The system is also connected to the Internet of Things (IoT) based Blynk application so that the drying process can be monitored and controlled online via smartphone. Based on 10 trials of reducing moisture content for 5 minutes, the average humidity was 93.8% RH. Meanwhile, the drying process using a heater took an average of 208.5 minutes at temperatures below 56°C with a final humidity of 79% RH. This system proved to be more efficient and practical than the manual method.

AUTOMATIC CONTROL SYSTEM OF PLTS AND PLN ON ELECTRICAL LOADS IN IOT-BASED ROBOTICS LABORATORY

Fengki Arianto — 2024-06-01

The Department of Electrical Engineering has a Solar Power Plant (PLTS) in the robotics laboratory; however, its utilization is not optimal and is still highly dependent on electricity supplied by the national electricity grid, which poses risks such as unexpected power outages. This research aims to optimize the utilization of renewable energy through an Internet of Things (IoT)-based automatic control system. This system uses an Arduino Uno as the main microcontroller and an ESP32 to transmit data to the ThingSpeak platform. The PLTS serves as the main power source, while the PLN serves as a backup. The system automatically switches the power supply to PLN when the PLTS battery voltage drops below 10.8 V and switches back to the PLTS when the voltage exceeds 13.2 V. Data such as battery voltage, load voltage, current, and load power are displayed on an I2C LCD and visualized in ThingSpeak. Test results show that the system operates as designed, with sensor readings in accordance with manual measuring instruments, and the power supply switching occurs stably in just 1 second. After two days of testing, the system successfully reduced dependence on PLN and maximized the utilization of solar power to power student laptops in the robotics laboratory.

Design and Construction of an Internet of Things-Based Air Quality Monitoring Detection Tool

Dendi Ilhamzah — 2024-06-01

Beberapa tahun belakangan kualitas udara di Indonesia sudah cukup memprihatinkan akibat tingkat polusi yang tinggi. Faktor utama yang menjadi penyebab tingginya tingkat polusi udara seperti asap kendaraan bermotor dan juga asap buangan pabrik-pabrik di daerah industri. Namun terkadang untuk memonitoring secara langsung tidak mudah. Karena itu, sangat dibutuhkan sebuah sistem yang dapat digunakan untuk memantau kualitas udara dari lokasi yang berjauhan dengan menggunakan sistem komunikasi wireless. Oleh karena itu pada penulisan kali ini akan membahas tentang alat pemantauan kualitas udara yang bertujuan untuk mempermudah mahasiswa untuk memantau tingkat kualitas udara di sekitar kampus ini di proses dengan mikrokontroler NodeMCU ESP32 sebagai komponen pengendali sekaligus sebagai perangkat penghubung ke internet (WiFi) dan bahasa yang digunakan adalah bahasa pemrograman Arduino. Beberapa komponen yang digunakan adalah sensor MQ-135 yang dapat mendeteksi perubahan kadar zat di udara sekitar, sebagai komponen input. Kemudian Dht-22 sebagai sensor pendeteksi suhu dan kelembaban, Buzzer dan modul p10 digunakan sebagai komponen output. Alat pemantau kualitas udara berbasis IoT dengan NodeMCU ini memiliki hasil keluaran bunyi yang dikeluarkan oleh buzzer, nilai output ditampilkan pada layar modul p10 dan juga aplikasi adafruitio agar dapat dilihat dimana saja dan kapan saja.

DESIGN OF A RICE GRAIN SEPARATOR USING A DC MOTOR AND SOLAR PANELS IN SUKAMAJU VILLAGE, MUARA PAWAN DISTRICT

Heri Dermawan — 2024-06-01

Post-harvest handling of rice is a crucial stage in improving the quality of agricultural products. In Sukamaju Village, Muara Pawan District, the process of separating rice grains from straw and impurities is still carried out manually, which requires significant time and labor. To address this issue, a rice grain separator was designed using a DC motor as the drive and solar panels as the main power source. This design aims to improve farmers' work efficiency, reduce dependency on the PLN electricity grid, and utilize environmentally friendly renewable energy.

The tool consists of several main components, namely a MY1016 type DC motor with a power of 81.6 watts, two 300 Wp solar panels, an MPPT-type solar charge controller (SCC), and a frame and separator mechanism made of hollow steel. The system is designed to operate for 6–8 hours per day, corresponding to the optimal sunlight duration in the area. The design results show that the tool can operate stably and effectively separate rice grains with efficient power consumption.

Based on calculations, the average daily sunlight duration at the project location is 6.83 hours, according to BMKG data from Ketapang Regency. The DC motor requires 81.6 watts of power, derived from 24V and 3.4A. The minimum solar panel capacity needed is 244.8 Wp, but two 150 Wp panels (a total of 300 Wp) were used to ensure stable motor operation. The MPPT Solar Charge Controller (SCC) has a minimum required capacity of 14.85 A, but a 25 A SCC was selected to accommodate the safety factor. A 25 Ampere MCB (Miniature Circuit Breaker) was also chosen, based on the maximum motor current (14 A × 1.5). The cable cross-sectional area was set at 2.5 mm², suitable for a current density of 6 A/mm².’a. The voltage loss from the phb in the director's room and in the employee's room is 0.36% and 0.55%. In these 2 rooms the electrical power load is 3,750 va and the nominal current is 17.45 A.

DESIGN AND BUILD A GATE BARRIER SYSTEM USING QUICK RESPONSE CODE (QR CODE) AND ESP32 MICROCONTROLLER

Sidratul Rezky Al Kahfi — 2024-06-01

Parking space security has become an important aspect as technology develops which shifts manual parking systems to automatic systems. One technology that has been used is Radio Frequency Identification (RFID), but the system. this has limitations such as the risk of losing or damaging the access card. Therefore, this research proposes the use of Quick Response Code (QR Code) as an alternative to the RFID card system to increase the efficiency and convenience of parking access. This research uses an experimental method with a hardware and software system design approach. Tests were carried out to measure the distance and scanning time of the GM66 scanner and ensure that synchronization with the database was running optimally. Test results show that the GM66 scanner has an average scanning distance of 27.5 cm with a response time of 0.5 millseconds. The gate barrier relay opens the bar in 1.48 seconds and closes in 5.19 seconds. This system was developed using XAMPP and MySQL software, with C, PHP, HTML and JavaScript programming languages. The entire system was successfully tested and functions well, demonstrating high efficiency and accuracy in supporting modern parking operations.

Keywords: QR Code, Parking, GM66 Scanner, Web Based Application, ESP32