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This research was carried out by comparing the DS18B20 sensor and the MLX 90614 sensor to detect the accuracy of detecting human body temperature which is used to detect Covid 19 symptoms. In this experiment, 10 trials were carried out with different human segments detected using the sensor. In the experiment, it was found that the MLX90614 sensor is more suitable to be used for development with an IoT-based system because it does not need to come into contact with the skin of the human body. The MLX90614 sensor will detect the temperature and change it to one Celsius unit then send it to the firebase database which will then be picked up by the android application which is held by the security officer so that the temperature can be known remotely. When the temperature is more than 38.5 Celsius it will turn on the buzzer sound which can be heard from a distance which indicates the temperature is above 38.5 Celsius and on android will also display a danger sign

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.

ABSTRACT The use of mobile devices with the Android operating system which are used as supporting media and supplements in improving learning outcomes combined with demonstration methods and discovery learning or demon-disco learning is needed to help students improve learning outcomes in hydroponic plant cultivation vocational competency subjects at SMK. 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 medium is to present material about understanding, introduction to parts, types, and quizzes containing questions about hydroponic cultivation of plants. This research uses the Research and Development (RnD) product development method, using 6 out of 10 research stages, namely potentials and problems, data collection, product design, design validation, design improvement, product testing. The result of this research is to produce learning media in the form of android-based applications. The validity value of the media expert is 2.6 which is declared feasible, while the validity value of the material expert is 3.6 which is declared feasible, and is able to increase the average value in the hydroponic plant cultivation vocational competency subject at the Terang Bangsa Christian Vocational School which Initially 67 (with 13 students who had not reached the KKM) to 80 (with 4 students who had not reached the KKM).

The purpose of this thesis is to produce tangible results in providing comfort or convenience in controlling electrical appliances, including turning on or off lights at home and controlling other electrical appliances. The method used in making the Design of Control System for Electrical Equipment Using Bluetooth Based on the Atmega 328 Microcontroller is a prototype. This research method consists of several stages, library research, analytical methods, design and implementation methods. The results achieved are reducing the number of fires due to electrical short circuits and increasing aspects of comfort and convenience for users as well as people with disabilities and the elderly, who find it difficult to stand or to reach lights and the implementation of infrastructure devices, where a series of these tools can work after bluetooth devices are available in the community. android smartphones. connected to the bluetooth module connected to the arduino microcontroller. Basically, using the principle of this tool, the user must be able to operate a smartphone based on the Android operating system. The conclusion is that this equipment has been tested and can be used as a controller of power tools with a lightweight android smartphone via a Bluetooth connection without having to press the switch button.

Perkembangan teknologi semakin maju, kemajuan perkembangan ini dapat memberi keuntungan kepada masyarakat seperti perkembangan pada bidang Kesehatan seperti pada penelitian ini yang membuat aplikasi monitoring kadar gula darah dan tingkat dehidrasi dengan menggunakan MIT App Inventor. MIT App Inventor sendiri merupakan aplikasi web sumber terbuka yang dikembangkan oleh google. Dalam pembuatan aplikasi di MIT App Inventor programnya menggunakan blok-blok yang sangat mudah. Aplikasi ini dapat memonitoring kadar gula darah dan tingkat dehidrasi karena terdapat bantuan dari Bluetooth hc-05 yang berfungsi sebagai komunikasi data pengiriman data monitoring dari Arduino ke android.

Presence is an activity that aims to determine the level of attendance of a person in an agency, school or company. One of the problems that occurs is the student attendance system at STMIK Rosma Karawang due to cheating when making attendance at lecture activities begins. By looking at the problems contained in STMIK Rosma Karawang, a program is needed. To create a program requires a method. The method used is a waterfall as a software development method. The proposed database design is a DFD (Data Flow Diagram). Implementation of the program using Android Studio. With the design of the program is a solution to solve problems that exist in the presence system at STMIK Rosma Karawang, and can achieve an effective activity in supporting activities at STMIK Rosma Karawang.

 Ungaran Mountain has a height of 2050 meters above sea level, this mountain is suitable for beginner climbers who want to know more about climbing hobbies, Ungaran climbers themselves only take about 3-5 hours, depending on the speed of walking, the climbing route is also quite light and very suitable for heating before starting to climb higher mountains. Thus many novice climbers who want to try to climb and conquer Mount Ungaran, armed with minimal experience of mountain climbing, the risks they face are even greater, ranging from getting lost, being hypothermic to death while climbing. To make it easier for Ungaran mountain climbers who are dominated by novice climbers in this study, the Ungaran Mountaineering Track and Monitoring Application Based on the Global Positioning System (GPS) on the Android System "which was built to make it easier for Ungaran mountain climbers to access information provided by Ungaran mountain climbers. needed to climb Mount Ungaran, and it is also useful for the team at base camp to monitor climbers who climb..