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The increasing waste problem requires innovative solutions that are efficient and sustainable. This study aims to design and build an Internet of Things (IoT) based garbage cleaning robot that can be monitored and controlled remotely. This system is designed by utilizing a microcontroller as the main brain, sensors to detect the presence of garbage, and an IoT-based communication module that allows monitoring and control of the robot via mobile devices or the web. Based on the results of the analysis and testing carried out, this study shows that the use of ESP8266 in the RC Trans Robot motor control with the Blynk application has succeeded in significantly increasing system efficiency. The system successfully responds to user input via a mobile application and can control the movement of the robot in real-time. The performance of the robot system controlled via a WiFi network shows good stability in various test scenarios. The robot can operate effectively within a distance that matches the range of the WiFi network, with fast control response and reliable communication.

This study aims to design and develop a web-based meeting scheduling system at the North Sumatra Provincial Transportation Office using the First Come First Served (FCFS) algorithm method. This system is expected to optimize the meeting scheduling process by considering various factors, such as the availability of time and meeting room, as well as the needs of meeting participants. The Waterfall method is applied in the development of this system, which includes the stages of determining needs, system design, implementation, testing, and maintenance. First Come First Served (FCFS) in the meeting scheduling system at the North Sumatra Provincial Transportation Office can be applied to organize the queue of requests for the use of meeting rooms or meeting schedules based on the order of arrival of requests. The results of this study indicate that the implementation of a web-based meeting scheduling system can increase efficiency and reduce schedule conflicts at the North Sumatra Provincial Transportation Office. This system can facilitate the process of managing meetings and increase work productivity.

WebGIS is a web-based Geographic Information System consisting of several interrelated components. WebGIS is a combination of graphic mapping design, digital maps with geographic analysis, computer programming, and a database that are interconnected into one part of web design and mapping web. WebGIS is a GIS application distributed in a computer network to integrate and disseminate geographic information visually on the world wide web. The objectives achieved in this study are to identify the types of tourism distribution on Sipora Island, Mentawai Islands Regency and to design and build a tourism object information system on Sipora Island, Mentawai Islands Regency based on webGIS. From the research conducted, it can be concluded that based on the survey results, there are 22 points. Waterfall tourism consists of 7 tours, cultural tourism consists of 2, beach tourism consists of 8 and marine tourism consists of 5. Where the tourism is spread across 2 sub-districts. Where in the North Sipora sub-district there are 15 points and South Sipora 7 points. Design and Build a tourism information system for Sipora Island, Mentawai Islands Regency using Quantum GIS as initial data processing. Then combined with a website that has been designed using the Visual Studio Code application.