The innovation of the robot cars today is moving very fast. The robot car is capable of being driven without using manual remote controls. One form of technological development in robot car control is by using hand gestures. The microcontrolle placed in the palm of the hand will read the direction of movement of our hands, then the instructions are transmitted to the robot car.  The transmission system used in the microcontrolled circuit in the palm of the hand and the receiver circuit inside the robot car must be properly attached. This is influenced by the quality of programming language levels and the arduino mini pro and MPU-6050 circuits. Hand gesture directional readings are able to be easily readable and directly transmitted by the NRF24L01 module via radio waves. The response power of the robot car in receiving hand-move instructions can be received as far as 45 m. In addition to using a good arduino mini pro, the addition of antenna modules will also increase the quality and distance of the connection is getting farther..

Kebangkrutan merupakan kondisi perusahaan yang menunjukkan ketidakmampuan perusahaan untuk beroperasi dengan baik dikarenakan kesulitan keuangan yang dialami sangat parah. Adapun tujuan dari penelitian ini adalah untuk mengetahui dan mengukur kondisi kesehatan keuangan PT. Smartfren Telecom Tbk dengan menggunakan metode Altman Z-Score, Zmijewski, Springate dan Grover. Jumlah populasi adalah 13 tahun dengan periode 2007-2019 dan sampel adalah 10 tahun dengan periode 2010-2019. Jenis penelitian ini adalah penelitian deskriptif dengan menggunakan metode kebangkrutan dan uji one sample t-test. Hasil dari penelitian adalah metode Altman Z-Score, Springate dan Grover memprediksi PT. Smartfren Telecom Tbk tidak berpotensi mengalami kebangkrutan sedangkan metode Zmijewski memprediksi PT. Smartfren Telecom Tbk berpotensi mengalami kebangkrutan. Berdasarkan hasil perhitungan uji one sample t-test dan besarnya nilai standar deviasi diperoleh metode Zmijewski merupakan metode yang relevan dan akurat untuk memprediksi kebangkrutan pada PT. Smartfren Telecom Tbk.

Social media is a new phenomenon that has changed the way the business environment operates. Through social media, businesses gain access to resources that are otherwise unavailable to the business owner. This research is a causality research, which aims to analyze the causal relationship and influence of two or more phenomena, through hypothesis testing. The population and sample in this study are SMEs who open e-commerce businesses on social media. The number of samples used in this study amounted to 154 respondents. Based on the analysis and discussion, it is concluded that the Marketing operation advantages variable has no significant effect on Marketing Performance, the Cost-effectiveness variable has a significant effect on Marketing Performance, the Customer Communication Channel variable has a significant effect on Cost-effectiveness, the Customer Communication Channel variable has a significant effect on Increased customer satisfaction, Customer The Communication Channel has a significant effect on Marketing operation advantages, the Customer relationship performance variable has a significant effect on Marketing Performance, the Increased customer satisfaction variable has a significant effect on Marketing Performance and the Social media marketing implementation capabilities variable has a significant effect on Customer relationship performance.

One of the main factors in achieving effective and efficient performance isattention to human resources. Having reliable and truly appropriate human resourceswith needs is the hope of every manager. The company needs employees with the appropriate abilities with job roles. As for the position of PT. Bogowonto Primalaras still uses a work period limit where employees cannot fill vacant positions at any time, based on the criteria of tenure an employee fulfills the term of service that is in accordance with his expectations. where on assessment in absenteeism is carried out by collecting daily report data that makes HRD send one by one who has sent the daily report. Where is the report related to the productivity criteria of an employee who has reached the target or not.

The waste processing and renewable energy are being the issues in the industrial 4.0 era. Kitchen and organic trash in the rural areas will become a disaster if there is no solutions. On the other hand, kitchen and organic waste have a positive side, that they can be converted into biogas which can be converted into electricity. On the Minister of Energy and Mineral Resources Regulation Number 27 of 2014, supports the development of biogas and will buy electricity from the biogas conversion. The potential for biogas that obtained by the organic trash per 1000 people is 7619.8 liters of biogas, it meas that the energy contained is still abundant and the production can still be increased if processed with a modern digester system. This research produces a tool in the form of a portable digester that named GenBIoT (IoT-based Biogas Generator) which can be used by the public to produce biogas that  used by home industries or general factories. This research used the research method that similar to System Development Life Cycle (SDLC), this tool is built with several stages starting from planning analysis, designing, functional testing, data analysis and reporting of the results or implementing this tool that can be used as an alternative, as a cheap and easy source energy. This tool is based on the Internet of Things so that this tool can be monitored regarding gas pressure in the reactor, biogas volume and it will detect if there is a biogas leak so it will displayed on the system. To produce the maximum biogas composition, 50% of cow dung is required, 40% of kitchen trash and 10% of water with a ratio of 5: 4: 1 so it will produce 40 kg of biogas with a volume of methane gas (VGM) 0.11 m3 of biogas for cow dung. and 0.04 m3. The third experiment becomes the basis of future biogas production with energy produced from biogas per day of 716.39 Wh

Internet of Things (IoT) is a dynamic global network infrastructure with standard configuration capabilities and interoperable communication protocols where physical and virtual "things" have identities, physical attributes and virtual personalities and use smart interfaces, and are integrated into the network. Water is a source of life for humans and nutrients needed by humans. One of the essential daily needs of living things in this world that cannot be separated is water. The problem or obstacle that exists with the use of artesian water is that when the meter calculation (usage standard) is still using human labor, in other words there is a mobile officer at the end of every month, while in the middle of the month the officer returns to provide a payment account receipt. Not yet, if the officer has difficulty checking, they have to be behind the customer's house if the meter (standard of use) is located behind the house, and the place is not strategic. Then sometimes the recording is not accurate because it is not in accordance with the usage of the existing customer being metered. This gives the effect of a longer process, less accurate results, and makes the job more difficult and customers also feel worried that if the staff is not careful about recording water usage, the authors are inspired to design and make a tool to make it easier to record water usage with modern technology. namely the Artetis Water Billing Information System using Water Flow and IoT-based Sim900A in the Purwoyoso village area of Semarang where people can maintain and manage water more effectively and efficiently for human survival.

The AWD Mranggen store is a store that is engaged in the sale of bags, belts, shoes with sales developments increasing from year to year, with fairly tight business competition, the AWD Mranggen store must be able to calculate the estimated number of items to be purchased based on previous sales data, the prediction is very influential on the decision to determine the number of items to be provided by the AWD Mranggen Store for the next sales period data. Inventory of goods that are not right cause some losses in terms of time and also costs, it is necessary to have a forecasting system. Forecasting is a technique to identify a model that can be used to predict conditions in the future. By using the weight moving average method, it can be seen that the error value is more than smaller than other methods and the estimated results can be more precise so that it can help owners make decisions in carrying out inventory.

The information system for purchases and cash disbursements is one of the entire information systems. In retail sales companies need control of purchases and cash disbursements that are precise and fast. In an effort to minimize sudden out-of-stock inventory, it is necessary to secure an inventory to cope with a sudden out of stock due to delays in purchasing goods that occur at CV. New Space. This is what encourages the author to conduct research on CV. Angkasa Baru and choose the title "Purchasing Information System and Cash Distribution at CV. New Space.
In writing this research systemin formation, the author uses the Microsoft Visual Basic 6.0 application, the research writing method uses the Research and Development (R&D) model, while the stages of this research model go through the stages of observation or interviews with parties related to the data required in writing this thesis, stages of designing the application system, designing specifications, validation test stages, revision of validation until the system passes. The development method used by the author is the prototype method, where the system created will be tailored to the needs of the user, if there is a change in the system it will be repaired until the user is satisfied with the system.

CV.Tiara Bakery adalah perusahaan yang bergerak di bidang penjualan roti di Semarang. Pengadaan bahan baku memiliki peranan penting dalam proses produksi dan membutuhkan ketelitian yang baik dalam memilih bahan baku. Kriteria yang digunakan meliputi waktu pengiriman, kualitas, kuantitas, harga, garansi, merek.
Dalam menggunakan metode Topsis untuk sistem pendukung keputusan pengadaan bahan baku roti, dapat digunakan untuk rekomendasi pengambilan keputusan dan dapat diterapkan di perusahaan. Bahasa pemrograman PHP dapat diimplementasikan dalam pembuatan DSS untuk pengadaan bahan baku roti.
Dari hasil penilaian ahli atau ahli dapat disimpulkan bahwa hasil validasi ahli menunjukkan nilai 3,8 yaitu antara 3,26 – 4,0 yang tergolong kategori sangat valid. Sedangkan hasil penilaian dari pengguna dapat disimpulkan bahwa hasil validasi dari pengguna menunjukkan nilai 3,0 yaitu antara 2,51 – 3,25 yang tergolong kategori valid.

This study aims to examine the factors that influence the behavior of using accurate online in computer accounting subjects based on the acceptance model and use of UTAUT technology. This research is quantitative. The population in this study were 81 students majoring in financial accounting SMK IPIEMS Surabaya institutions, with a research sample of 44 people. Samples were taken based on the purposive sampling technique with the criteria of students who have or are currently taking computer accounting subjects. Data were collected using a questionnaire. The data analysis technique used in this research is the analysis technique of Structural Equation Modeling (SEM). The results show there is a significant positive indirect effect between performance expectancy, effort expectancy and social influence towards the behavior of using accurate online with behavioral intention as a mediating variable.