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The development of renewable energy, particularly Solar Power Plants (PV), requires a reliable, real-time, and easily accessible electrical energy monitoring system to ensure optimal system performance. This study aims to design and implement an Internet of Things (IoT)-based electrical energy monitoring system for PV using the NodeMCU ESP32 microcontroller, the PZEM-004T sensor for measuring electrical parameters, and the Node-RED platform as the data visualization interface. The developed system is designed to monitor voltage, current, power, energy, frequency, and power loss in real time, and then display the data in the form of numerical values, graphs, and indicators on a dashboard accessible through a local network. The research method includes hardware design, software development (sensor reading, data processing, and communication), integration with Node-RED, and system testing on a small-scale PV installation. The test results show that the system is capable of monitoring electrical parameters in a stable and responsive manner. Variations in sunlight intensity were found to affect the current and power produced by the solar panels, whereas the inverter output voltage tended to remain within normal operating ranges. The Node-RED dashboard display was considered informative and helpful for users in monitoring and analyzing PV performance. Based on these results, it can be concluded that the IoT-based electrical energy monitoring system designed in this study functions well and is feasible for application in residential or educational-scale PV installations. The system still has the potential for further development through cloud service integration, the addition of environmental sensors, and enhancements to data analysis features and user interface design.

Indonesian Sign Language (BISINDO) serves as a primary communication medium for the deaf community; however, limited public understanding often creates barriers during daily interactions. This study aims to develop a real-time BISINDO word-level translation system using hand landmark extraction and temporal modeling with Long Short-Term Memory (LSTM). The system employs MediaPipe Hands to detect 21 hand landmarks per frame, which are then processed as sequential motion patterns to classify five BISINDO words: saya, terima kasih, maaf, nama, and kamu. A total of 250 gesture samples were recorded under controlled lighting conditions as the primary dataset. The processed sequences were used to train the LSTM model, which was subsequently integrated with an ESP32 microcontroller and a DFPlayer Mini module to produce direct audio output. Experimental results show that the model achieved an average accuracy of 86%, with precision and recall values ranging from 0.81 to 0.94. The confusion matrix analysis indicates that most gestures were correctly classified, although some errors occurred in gestures with similar initial motion trajectories. Integration testing demonstrated an average system latency of 3.8 seconds and an audio output success rate of 85%. These findings indicate that the proposed system is capable of translating BISINDO word-level gestures accurately, responsively, and consistently in real-time conditions. This study provides a strong foundation for the broader development of sign language translation systems, with potential enhancements in vocabulary expansion, multi-user datasets, and hardware optimization for deployment in real-world environments.

The role of information and communication technology in education in general aims to make students understand information and communication technology tools in general, including computers (literacy) and information literacy, where students recognize the terms used in information and communication technology. In the Qur'an there are so many commands, statements, suggestions and so on that substantially connect Islamic teachings with science and technology. The results of this research found that the role of information technology in education, apart from helping students in learning, also has a quite influential role for teachers, especially in the use of facilities to enrich teaching abilities, and the Al-Qur'an as a guide and guidance for the development of science and technology. in order to strengthen faith and improve human welfare.

Monopulse Secondary Surveillance Radar Mode-S is a flight observation device that can work up to 256 NM coverage. To ensure that the equipment is run, it is necessary to evaluate the performance of the equipment in accordance with KP No. 35 of 2019 concerning procedures for maintenance and reporting of aviation telecommunications facilities. The purpose of this study is to evaluate the performance of the tool. Equipment performance evaluation is analyzed based on several parameters. the analysis was carried out using research methods in the form of qualitative analysis and descriptive analysis. The results of the analysis are adjusted to KP no. 35 of 2019 with an evaluation of the performance of the INDRA IRS20-MP/S 2NA Type MSSR Mode-S Radar device for the 2023 period has 100% availability, MTBF 8760 Hours, and MTTR 0 Minutes 

Indonesia merupakan negara dengan iklim tropis. Salah satu musim di Indonesia adalah musim hujan. Curah hujan yang sangat tinggi dapat menimbulkan bencana banjir di berbagai wilayah Indonesia yang menimbulkan kerugian akhir maupun korban jiwa. Sistem peringatan dini bencana banjir menjadi salah satu solusi agar masyarakat Indonesia dapat mempersiapkan diri sejak dini ketika terjadi bencana. Penelitian sebelumnya telah membuat sistem bencana banjir dengan menggunakan GSM 900, namun permasalahannya ada beberapa lokasi penempatan sistem bencana banjir yang kurang sinyal GSM atau tidak ada sinyal GSM sama sekali. ,. Nilai RSSI terkecil yang diperoleh sebesar -87 dBm dan nilai tertinggi sebesar -128 dBm. Sedangkan pada jarak Non Line of Sight, Lora hanya mampu menjangkau jarak 520 meter dengan nilai RSSI terkecil - 128 dan nilai RSSI terbesar yaitu -147 dBm. Hal ini membuktikan bahwa dibutuhkan banyak node saat menggunakan Lora karena Lora memiliki keterbatasan jarak untuk komunikasi transmisi data

Serasan Jaya 3 Building Materials Wood Depot is a business engaged in the sale of building material products, especially wood. Until now the Serasan Jaya 3 Building Materials Timber Depot only uses a manual sales and transaction system, which in this case requires a new breakthrough to keep up with technological developments that are developing in the current era because basically almost all ages demand something practical and easier. By looking at some of the existing problems, the researcher tries to design and build an information system for selling goods at the Serasan Jaya 3 Building Materials Wood Depot based on Android, therefore, the author chose this topic for a thesis entitled "Android-Based Sales Information System at Wood Materials Depot Serasan Jaya 3 Building With the Extreme Programming Development Method” which of course provides speed and convenience for the public to make transactions using mobile phones or mobile-based communication devices such as smartphones, tablets, gadgets, and so on. So that it can make it easy for the Serasan Jaya 3 Building Materials Timber Depot to promote products, product prices and make it easier for people to buy products and find out the prices of building material products from mobile devices. Android-Based Sales Information System at the Serasan Jaya 3 Building Materials Wood Depot was built using UML (Unifield Modeling Language) as its design mode and Extreme Programming as a system development method..

Public services in several districts have not utilized online information and communication technology. So that the service applicant has to go back and forth to the sub-district which takes a very long time. For this reason, with the development of the modern era, employees should provide good service to the community, such as running community service programs using applications. This research aims to create Community Public Service Application programs and to help people carry out services using Web-based Public Service Administration service applications in South Prabumulih District. This research uses descriptive research type. The type of data taken is quantitative data. Sources of data in this study using primary data sources and secondary data sources. Data collection techniques in this study were carried out by observation, interviews and literature studies. The system development method used in this research is the Water Fall Method, and the System Design Auxiliary Tool.

Someone who is referred to as a technician is a person who has expertise in a particular field of technology. Telkom Group is the only state-owned telecommunications company and the largest telecommunications and network service provider in Indonesia. Evaluation of technician performance is important to support the smooth running of the company. Selection of the best technician, will increase the motivation of the technician's performance. Some of the problems encountered were the absence of a technician performance appraisal process, the absence of an appropriate selection method, and the absence of a Decision Support System (DSS) that could make it easier to assess the selection of the best technician. Designing and building a decision support system using the AHP and COPRAS methods on technician assessments at PT. Telkom Access Regional 4 (Semarang) to increase the morale of the technicians and appreciate them. In this study, the AHP-COPRAS method was used to create a web-based DSS, in providing a more objective assessment every month, and creating several reports that convey effective issues, such as rating reports and technician performance appraisal reports according to these criteria.

In the current era, learning adheres to the 2013 curriculum which includes HOTS (Higher Order Thinking Skills) consisting of critical thinking competencies, creativity and innovation, communication skills, collaboration skills and selfconfidence. These five things need to be trained or improved for deaf children so that they can take part in learning well. So learning media products are made that can be used to recognize letters and numbers. This Learning Media is equipped with sign language to support the understanding of deaf children in addition, it is packaged with an attractive appearance so that deaf children are interested in learning it. Often in daily teaching and learning activities students still often experience problems in remembering the material being taught both in the introduction of letters and also the introduction of numbers and what becomes an obstacle for students learning must be done repeatedly so that they can remember it and can really understand what it means. being taught and also they are sometimes bored and lazy in learning. From the problems that occur above, it is necessary to have a learning media that can help children with disabilities, especially the deaf, especially for the introduction of numbers and letters so that they can easily understand and understand letters and numbers. not bored, bored and lazy in learning. Learning media in the form of an android application so that it can be used on smartphones which are currently very widely used by both teachers and parents of students with disabilities.

PT. Dayamitra Telekomunikasi or Mitratel is a subsidiary of PT Telkom Indonesia (Persero) Tbk which is engaged in providing telecommunications infrastructure. Mitratel has been in the telecommunications tower business since 2008. To date, Mitratel has managed more than 13,700 telecommunication towers spread throughout Indonesia. The choice of a website as a company's communication medium with the public is the right decision considering that the website can provide information or messages to anyone who wants that information even though they are in different parts of the world. The website built by the company can provide information related to the company's activities that are considered worthy to be known by the public. Through the website, the public can also find out the company in sufficient detail, starting from the profile, vision and mission, history, contacts, and activities carried out by the company. So far, the Mitratel website has never been evaluated, so the authors evaluate using the Webqual method and Importance Performance Analysis. The results obtained indicate that there are still many parts of the Mitratel website that must be improved.

Diamond Printing is one of the largest offset printing companies with 32 years of experience and is located in the city of Surabaya, East Java. Data from HRD managers explained that there was no report from observations related to employee work effectiveness in terms of coordination and synergy between employees as seen from the communication and collaboration relationships. The absence of data related to the effectiveness of the performance of CV employees. Diamond Printing in terms of communication network mapping is one of the obstacles faced by HRD in determining KPI (key performance indicator). By using the Social Network Analysis (SNA) method with the help of UCINET 6 software, it is hoped that some employees will have advantages, especially in collaboration and communication in group network structures. There are three parameters used in SNA, including: degree centrality, closeness centrality, and betweenness centrality. This study involved 104 respondents (the entire population) with a sampling technique using snowball sampling and a questionnaire as a means of collecting data. The results of this study indicate that most of the collaboration and communication network interactions are dominated by manager level employees and department heads. Based on these findings, an innovation is needed from all stakeholders from CV. Diamond Printing in developing effective communication methods between its members.

Recently, the need for cellular telecommunication services in Indonesia refers to a very large number. This customer growth rate must be balanced with infrastructure development. PT. Telkomsel carries out scheduled maintenance or maintenance activities on BTS devices. Based on these problems, the research carried out by the author aims to find out and understand the repair or repair procedures on computerized BTS devices at PT. Telkomsel, Karawang. The result of the research is that it is known that the application of a computerized system at PT. Telekomunikasi Selular GraPaRi Karawang helps the process of repairing BTS devices in meeting information needs. To monitor damage to BTS equipment, it is done by means of an alarm monitoring system using the iManager u2000 software.

The use of information, media and communication technology has changed both the behavior of society and human civilization globally. The development of hospitals in Karawang is increasingly mushrooming, as well as the increasing number of degenerative diseases such as hypertension and diabetes, the increasing prevalence of chronic kidney disease. So it requires the handling of renal replacement therapy (Renal Replacement Therapy) because it is increasingly needed for cases of acute and chronic renal failure. The purpose of this research is to build an integrated and controlled information system that can simplify the patient administration process and reduce the effectiveness of the patient's time for dialysis. The methodology that the authors use in this study includes methods of identification and system design. System identification includes identification of the organization, running systems, and problem identification. The problems faced at this time in the Hemodialysis Installation. Patient data is not the same between patients who are served by hemodialysis (dialysis) and those in the application report, the transaction value for using tools and materials is sometimes empty or there is no transaction value in the application, it will cause losses to the customer. hospital. It is hoped that this system can eliminate the problems that have been happening so far.

n this digital era and the increasingly developing human resources, it is possible to create new research in this era of development. One example of its development is the discussion of the concept of serial communication. In technology, we know the name of the serial communication. In today's world serial communication is the forerunner of communication between platforms in general. In this journal we will know what serial communication is, it is a communication method that is carried out one way and the concept of sending data is bit by bit or, in other words serial communication is one method of data communication that is sent over a cable which gets one bit of data in a a certain time simultaneously and alternately. In this study using the main tool namely the HC-05 bluethoot module which is used as a master and slave.

Utilization of a mobile device with the Android operating system that is used as a supporting medium and supplement in improving learning outcomes combined with demonstration and discovery learning or demon-disco learning methods is needed to help students improve learning outcomes in vocational competence subjects in hydroponic crop cultivation in vocational high schools Kristen Terang Bangsa, because the use of android-based applications can provide new experiences regarding the use of information and communication technology, as well as provide opportunities for students to be able to learn more independently. The concept chosen as a learning media is to explain the material about understanding, introduction of parts, types, and quiz containing questions about hydroponic plant cultivation. This research uses the Research and Development (RnD) product development method, using 6 out of 10 stages research that is the potential and problems, data collection, product design, design validation, design improvement, product trials. The results of this study are to produce learning media in the form of Android-based applications. The validity value of media experts is 2.6 which is declared feasible, while the validity value of material experts is 3.6 which is declared feasible, and is able to increase the average value in the subject of vocational competence in hydroponic cultivation in Christian Terang Bangsa Vocational Schools which initially 67 (with 13 students who had not yet reached KKM) to 80 (with 4 students who had not yet reached KKM).