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In the current era of globalization and technology, computers, RFID are examples of information technology tools that are indispensable for meeting human needs in almost every aspect of life, including the management of infrastructure and equipment lending.According to direct research at Widya Praja Ungaran Vocational School, there are only two workers who handle facilities and infrastructure. In carrying out their work assignments, they still experience difficulties. Excess workload and the process of borrowing tools that still lacks a sense of responsibility, so that the results of the work are not maximized.The existence of increasingly sophisticated technology, the management of infrastructure and equipment lending can be done with the help of technological tools that will be implemented in this school. This research aims to make it easier to administer, because this school has not yet added a new workforce.This research can be designed with the help of software (Bootstrap, MySql), programming (PHP, Arduino IDE) and equipment (NodeMCU ESP8266, RFID, LCD, I2C, buzzer, power supply, breadboard, jumper cables, resistors, LEDs) to provide data information. more accurate, effective, efficient and provide a good working atmosphere in this school. It is hoped that this research can reduce work overload and create a sense of responsibility in borrowing equipment, using local networks (wifi / handphone) and computers or laptops, with the research method used is research and development (R&D).

In the future, electric vehicles will become the primary choice for transportation due to their environmentally friendly nature and zero carbon emissions. Electric vehicles use batteries as their main source of energy, which can be recharged by continuously flowing electric current. However, uncontrolled charging can cause overcharge to the battery. Therefore, this study aims to find an efficient strategy to control the voltage using fast charging algorithms for electric vehicles. The method used includes the design of a fast charging circuit, battery assembly, and fast charging testing. The results show that the fast charging circuit uses a buck converter circuit combined with a charger circuit to produce a specification of 48 Volts 6 Amperes. The capacitor and resistor components on the output affect the charging speed, and charging is considered fast charging when it reaches 40% battery capacity within 2 hours of charging.

The railway doorstop system functions to increase the safety of road users and avoid accidents at crossings. This journal discusses the design and implementation of a train doorstop system using Arduino Uno with supporting components such as servo motors, LED lights, resistors and the HC-SR04 ultrasonic sensor. The simulation aims to automate the process of closing and opening gate latches based on the presence of trains, with results demonstrating the effectiveness of the system in improving safety at crossings.  

Gobak sodor is a traditional Indonesian game.  This article is compiled to relate to the application of detection tools in the simulation of the gobak sodor game. The goal is to produce a prototype of a tool that can help facilitate the detection process in the movement of the gobak sodor game. The method used is the RAD (Rapid Application Development) method which has stages, namely requirement planning, design workshop and implementation, data collection techniques, namely literature studies, and documentation. As a result of the implementation of this tool, it will be able to work automatically when there is a player who crosses the line will block the light reaching the LDR. The findings of this device, the existence of an alarm and lights turn on when there are players who cross the barrier line.  This is because a change in resistance in the LDR triggers an alarm system or indicator light to detect movement. If the player's body hits the LDR sensor, then the device will sound.