The aim of this study is to design a battery charging system using solar panels, integrated with an IoT-based monitoring system to improve efficiency and ease of supervision. The system utilizes the photovoltaic effect to convert solar energy into electrical energy, which is then stored in a battery through the regulation of a solar charge controller. The main components in this design include a solar panel, lead-acid battery, ESP32 microcontroller, current and voltage sensors, and the Blynk application for remote monitoring. The research method involves several stages, including the design of hardware such as solar panels, current and voltage sensors, and a step-down regulator, as well as software development using the Blynk platform and ESP32 programming. Test results show that the system is capable of achieving charging efficiencies between 89.45% and 99.57%, with optimal performance under clear weather and maximum sunlight conditions. The IoT system performs well up to a distance of 10–15 meters, with an average data transmission delay of less than 1.5 seconds. Therefore, this device proves to be effective as an independent battery charging and energy monitoring solution in locations without permanent electricity access.

Entrepreneurship plays a significant role in global economic growth. However, not all entrepreneurs achieve success. This study aims to deeply examine the mindset and character that serve as the fundamental basis for entrepreneurial success, as well as the influencing factors and strategies for fostering these qualities based on a literature review. Through a literature review method, it was found that successful entrepreneurs possess a growth mindset, are solution-oriented, and adaptive, supported by specific thinking methods like BETSCA (Bricolage, Effectuation, Think Structurally, Cognitive Adaptability). Furthermore, key characters such as commitment, creativity, resilience, risk-taking propensity, and networking ability are crucial elements. The study also identified various driving factors and types of motivation (intrinsic-extrinsic) in entrepreneurship. Another important finding is that the entrepreneurial spirit and character can be learned and developed through personal commitment, a supportive environment, education, and continuous learning processes. The conclusion of this study asserts that the combination of the right mindset and strong character, along with the ability to continuously develop both, is essential for increasing the chances of success in the world of entrepreneurship.

The rapid advancement of information technology has had a significant impact in various fields, particularly in pattern recognition and image processing. One of the ongoing challenges is accurately recognizing handwritten digits, which plays a crucial role in document digitization, automated form reading, and other intelligent systems. This study aims to implement and evaluate the K-Nearest Neighbors (KNN) algorithm, a simple yet effective classification technique, in recognizing handwritten digit images. The data used comes from the public dataset load_digits from Scikit-learn, which contains 1,797 grayscale images of handwritten digits sized 8x8 pixels. Each image is represented as a 64-dimensional feature vector. The dataset is split into training and testing data with an 80:20 ratio, and the model is trained using KNN with k=3. The experimental results show a classification accuracy of 96.94%, with minimal prediction errors that typically occur in digits with similar visual shapes, such as 5 and 9. This study demonstrates that KNN, despite its simplicity, can provide high accuracy in handwritten digit recognition when supported by proper preprocessing and parameter selection. The implications of this research highlight the potential for developing intelligent applications in education, data entry automation, and identity verification.

Penelitian ini menyelidiki faktor yang memengaruhi adopsi penggunaan aplikasi galeri virtual GaYa dengan menggunakan Technology Acceptance Model (TAM) sebagai kerangka teori untuk mengeksplorasi hubungan antara Perceived Ease of Use (PEU), Perceived Usefulness (PU), dan Behavioral Intention (BI) dalam konteks aplikasi GaYa. Data yang diperoleh dari 120 responden survei dianalisis menggunakan Generalized Structured Component Analysis (GSCA) untuk mengkaji hubungan antar variabel dalam studi ini. Melalui kalkulasi nilai Critical Ratio (CR), hasil penelitian menunjukkan bahwa PEU memiliki pengaruh signifikan terhadap PU dan BI. Selain itu, PU terbukti menjadi prediktor kuat terhadap BI sehingga menegaskan bahwa pentingnya kegunaan dan nilai fungsional dalam adopsi teknologi. Temuan ini memberikan wawasan berharga bagi praktisi dan pengembang yang ingin meningkatkan efektivitas platform galeri virtual. Hasil studi ini juga menyoroti pentingnya pengembangan desain yang intuitif dan berpusat pada pengguna serta mampu memberikan manfaat nyata bagi pengguna. Keterbatasan dari studi ini terletak pada desain penelitian yang bersifat cross-sectional dan penggunaan sampel yang terbatas secara lokal, yang mungkin membatasi generalisasi temuan ke konteks yang lebih luas. Untuk meningkatkan pemahaman mengenai penerimaan pengguna dalam platform seni digital, penelitian selanjutnya disarankan untuk menggunakan desain longitudinal, menyelidiki faktor tambahan seperti kepercayaan pengguna dan estetika, serta melibatkan partisipan yang lebih beragam.
 
Kata Kunci - Technology Acceptance Model (TAM), Perceived Ease of Use (PEU), Perceived, Usefulness (PU), Behavioral Intention (BI), Virtual Gallery

Huruf Braille adalah huruf yang memiliki sistem tulisan yang menggunakan indra peraba untuk menggunakannya dan umum digunakan oleh penyandang tunanetra. Pada orang normal yang sering berinteraksi dengan para penyandang tunanetra terkadang mengalami kesulitan dalam menggunakan huruf braille, sehingga diperlukan suatu pendekatan teknologi sistem cerdas untuk dapat membantu mengenali huruf braille. Penelitian ini bertujuan untuk menggunakan metode depthwise separable convolutional neural network untuk melakukan pengenalan terhadap gambar braille. Dataset yang digunakan memiliki ukuran 28x28 dengan total dataset sebanyak 1560 citra. Arsitektur yang digunakan adalah input layer, yaitu sebesar 28x28x3 dan layer depthwise separable convolution pertama, kedua, dan ketiga menggunakan masing masing 3x3x128, 3x3x256, dan 2x2x512 dengan fungsi aktivasi rectified linear unit (ReLu) dan setiap konvolusi diikuti dengan lapisan-lapisan maxpooling dan batch normalization. Setelah itu, dilanjutkan dengan dua fully connected layer dengan jumlah neuron 256 dan 128 serta diakhiri dengan output layer sejumlah 26 neuron. Arsitektur tersebut menghasilkan model terbaik dengan akurasi sebesar 98.40%. Model tersebut diterapkan pada aplikasi berbasis website. Hasil temuan penelitian ini diharapkan dapat membantu masyarakat dalam mengenali huruf braille dengan mudah.
 
Kata kunci: tunanetra, braille, depthwise separable convolution, model, akurasi

This study aims to develop a virtual cultural heritage museum as a learning agent. Qualitative approach with thematic analysis method was applied to design a virtual museum based on the perspective of museum management as a provider of learning facilities. The opinions collected were in the form of challenges and obstacles in functioning the museum as a provider of learning facilities. Opinions were used to identify the theme of the virtual museum, and synthesized with six strategies in effective learning. The resulting synthesis was then used to develop a virtual museum model using a game-based learning approach. The Photogrammetry technique was used for 3D reconstruction of cultural heritage objects to achieve high precision results, both in terms of shape and texture. The evaluation conducted using the User Accaptence Test technique shows that the proposed model and method can actualize the characteristics of effective learning strategies.
 
Keywords - Thematic analysis, Game-based learning, Learning agent, Virtual museums, Photogrammetry

The selection The selection process for prospective crew members is a crucial stage for the company, especially at PT. Timas Suplindo. However, it is often difficult to determine prospective crew members who are competent in their fields. The selection process for prospective crew members is considered ineffective because decision making still has to consider many aspects. The purpose of this study is to create a website-based application and make it easier for the company, especially Human Resource Development (HRD), to obtain competent crew members who meet the specified criteria. This method was chosen because the assessment process is transparent because each stage of assessment and weighting can be tracked and increases accountability in decision making.
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Character development is a crucial element in the educational landscape, particularly in elementary schools where a child's personality starts to take shape. An effective approach to cultivating students' character is through Islamic Religious Education (PAI). This research seeks to evaluate how significantly Islamic Religious Education impacts the character development of elementary school students. A qualitative method is employed for this investigation, utilizing observation methods, interviews, and documentation concerning PAI teachers and students from various elementary schools. The findings from the research show that Islamic Religious Education plays a crucial role in promoting character traits like integrity, self-control, accountability, and acceptance. Effective learning, teacher role models, and religious activities in schools are supporting factors for the success of character education. On the other hand, limited lesson time and lack of parental involvement are challenges in its implementation. In conclusion, Islamic Religious Education has an important role in forming the character of students holistically from an early age.
 
 

Diesel engines are essential for transporting heavy loads, requiring significant engine power. This study aims to evaluate the effect of adding PTT (diesel fuel conditioner) additives to Dexlite fuel, focusing on mixtures of D0, D1, and D2. Additionally, variations in fuel pre-heating and engine cooling system fluids are examined. This research employs an experimental approach with descriptive analysis. The findings indicate that the optimal torque occurs with the D2 mixture, achieving 136.57 N·m at 2267 rpm with standard coolant, 152.03 N·m at 2100 rpm with a 50%:50% fluid ratio, and 160.70 N·m at 2033 rpm with a 30%:70% fluid ratio, all without pre-heating. The optimal power values for the D2 mixture are 74.60 HP at 4600 rpm with standard fluid, 75.23 HP at 4100 rpm with a 50%:50% fluid ratio, and 78.03 HP at 4000 rpm with a 30%:70% fluid ratio, also without pre-heating. The average results show that the D1 and D2 mixtures improve torque values by 0.77% and 4.75%, respectively, and enhance power by 0.19% and 1.53% compared to pure Dexlite. In contrast, pre-heating at 50°C, 60°C, and 70°C resulted in a decrease in torque of 1.00%, 2.26%, and 3.62%, respectively, and a reduction in power of 0.56%, 2.29%, and 4.79% compared to normal temperature conditions.

Gotong royong is a cultural value deeply embedded in Indonesian society, especially in Penglipuran Village, Bali. This village preserves local wisdom that prioritizes togetherness and cooperation in various aspects of life. This study aims to analyze the implementation of gotong royong values in the daily lives of Penglipuran residents and how these values are taught to younger generations. Using a qualitative method with in-depth interviews, the findings reveal that gotong royong is practiced in environmental cleanliness, traditional ceremonies, and other social activities. These values are passed down through informal education within families and project-based activities in schools. Despite the lack of financial support from the government, the community maintains the spirit of gotong royong through social sanctions for those who do not participate. This study highlights how local wisdom can serve as an effective medium for instilling the values of gotong royong in younger generations.