Erwinsyah Sipahutar’s research while affiliated with Politeknik Negeri Padang and other places

Kegiatan pengabdian kepada masyarakat ini dilaksanakan berdasarkan hasil pengamatan terhadap para guru smk di kabupaten aceh selatan yang dianggap masih belum mengenal dan menguasai penggunaan aplikasi WOKWI dalam Pembelajaran Mikrokontroler. Untuk itu perlu adanya pelatihan tentang mikrokontroler menggunakan aplikasi online WOKWI bagi guru SMK dalam pembelajaran Perangkat keras dan Teknologi Internet Of things dan efisien. Tujuan dari kegiatan ini adalah untuk meningkatkan pengetahuan dan keterampilan serta pembiasaan guru dalam penggunaan Aplikasi WOKWI. Dalam pelaksanaannya, kegiatan pengabdian ini dilakukan dalam bentuk ceramah materi pelatihan secara daring dan evaluasi. Metode survey digunakan untuk mengevaluasi hasil kegiatan melalui pendistribusian angket secara online. Data menunjukkan rata-rata respon baik yang diberikan oleh peserta kegiatan adalah sebesar 92.6%. Dengan kata lain, pelaksanaan pengabdian masyarakatini telah memberikan kontribusi positif terhadap profesionalitas guru dalam pemanfaatan teknologi Informasi

Flooding is a problem that until now still requires special handling from various parties, both from the government and the community. Flooding is not a light problem because flooding can disrupt community activities and cause losses, such as the washing away of household equipment, valuables, and electronic goods. Flooding occurs due to rising water levels in rivers due to abnormal rainfall, damaged dams, obstruction of water flow at the site of the dam's destruction in the River Basin Area (DAK), and the construction of facilities and infrastructure. The series of "Flood Detection Devices using Ultrasonic Based on Telegram and Sound consists of three parts, namely the input section, the control section, and the display section. This design was made to simplify the process in the Ultrasonic Flood Detection Device Design using telegrams and sound. The Ultrasonic Flood Detection Device Design Circuit using telegrams and sound consists of three parts, namely the input section, the control section, and the display section. The first Flood Detection Device Test using Ultrasonic Sensors Based on Telegram and Sound has been tried as many as 10 The first experiment The water depth is 1 meter, the distance of the sensor to the water surface is 3 meters, it is said that the status is safe, there is no notification to the telegram and the siren does not sound. Experiment 2: The water depth is 2 meters, the distance of the sensor from the water surface is 2 meters, it is said to be on standby, then the flood detector provides notification to the telegram via the telegram bot, and the siren sounds. Experiment 3: The water depth is 3 meters, the distance of the sensor from the water surface is 1 meter, it is said to be on standby, then the flood detector provides notification to the telegram via the telegram bot, and the siren sounds.

Vibration is a back-and-forth movement in a certain time interval that produces waves in a medium. Vibration can occur on a small or large scale. So on a small scale, a vibration sensor is needed to detect certain phenomena such as vibrations of engine capacity and detected pressure. On a large scale, vibration sensors can be used to detect earthquakes and other major phenomena and design a real-time vibration detection system for long distances, so vibration sensor components, controllers, and radio systems are needed. Therefore, researchers made a simple vibration detector using the experimental method. This final project aims to design, realize, and test the characteristics of the MPU 5060 accelerometer vibration sensor that is connected wirelessly. The characteristics of the sensor are tested against the magnitude of the vibration source, the distance of the vibration source, the placement medium, and the detection period. After testing the tool 10 times, it can be concluded that this simple vibration detector functions well and the highest average load results are obtained, namely in the 1-kilogram load test with a value of 1.93026 and the lowest average results are in the ceramic load test with a value of 0.651357.

The COVID-19 virus is very dangerous. In addition to attacking the lungs, this virus can also attack the heart directly. The relationship between heart health and COVID-19 occurs because blood vessel clots in COVID-19 patients increase the risk of blood vessel disorders and make the heart work harder. Therefore, researchers designed a heart rate monitoring device. This tool serves to maintain heart health and oxygen levels in the patient's blood and can also monitor people under COVID surveillance. The formulation of the problem from this research is how to design an IoT system to monitor COVID-19 patients through heart rate and location and how it performs. The purpose of this study is to analyze the performance of the device and design a tool to measure heart rate and blood oxygen levels through the IoT system and GPS location so that doctors can access heart rate data from any location. This research method uses a Gy-MAX30100 sensor, Wemos, and a GPS module. Of the 2 data samples that have been tested, the highest heart rate value is 78 bpm, the lowest is 76 bpm, and the highest oxygen level is 95 mmHg and the lowest is 93 mmHg. So in conclusion, this tool can make it easier for doctors to get important information about the condition of patients or people under observation that can be accessed by doctors anywhere and anytime via the internet.

Security is a state in which people or things feel safe from ominous or unsettling hazards, which will then cause them to feel at ease and comfortable. There are many ways to achieve security, one of which is via utilizing and deploying technology. The use of security technology has advanced quickly in recent years, from low-tech to high-tech techniques. By using Arduino as a circuit controller to process input from a vibrating sensor and 4x4 keypad, output to a solenoid as a charity box lock, and a buzzer that serves as an alarm in case of theft, technological or automated methods can reduce charity box theft and also increase the security of charity box locks. The charity box security system tool is made to prevent the theft of charity boxes, which frequently happens in mosques. If someone tries to steal the charity box, an alarm will go off, and you need a pin that has been programmed on an Arduino Ide and stored in EEPROM to open the charity box cover, so this tool can stop charity box theft in mosques.

Many robot prototypes have been made and control algorithms have been proposed. The performances are measured through experiments. This paper presents a two-legged robot prototype with and without Kalman filter in processing sensor data and proposes some movement evaluation parameters to measure the robot performances. Experiments show that the evaluated performances are able to differentiate method achievements. Movement parameters: movement angle, distance travelled, and failed frequency have been successfully identified robot performances.

Perkembangan teknologi perangkat bergerak mulai mengarah ke dimensi yang lebih kecil serta pembuatan aplikasi yang cepat, terkoneksi dan efisien. Dengan mengecilnya dimensi, efisiensi energi aplikasi perangkat bergerak menjadi sangat penting. Aplikasi ponsel berkembang sangat cepat, seluruhnya terhubung pada aplikasi seperti sosial media, hal ini menjadi kebutuhan sehari-hari. Baterai memasok kekuatan daya yang terbatas pada perangkat komunikasi bergerak, social media harus meminimalisir sinyal untuk mempertahankan konsumsi daya serendah mungkin. Rangkaian eksperimental dikembangkan dengan menggunakan mikrokontroller yang dapat mengukur konsumsi energy pada perangkat smartphone android pada jaringan 802.11. Hasil eksperimen menunjukkan bahwa whatsapp mengkonsumsi daya lebih kecil dari aplikasi lainnya pada proses standby dan chat, yang kedua aplikasi Instagram dan skype mengkonsumsi daya tinggi. Untuk proses keseluruhan youtube dan tik tok mengkonsumi paling tinggi.

The encrypted traffics are sensitive to losses, while wireless link in prone to error. Although solutions have been proposed in each TCP/IP stack layer, error or losses is always exist. In order to reduce losses of part(s) of encrypted data, bytes or packets should be as many as possible received by the receiver. This paper examines data compression impact in reducing losses of encrypted data. NS-2 simulator is employed to evaluate the study by using the 802.11 radio link. Simulations show that the 3DES decryption rate increases when compression applied. Packet losses can be reduced about 0.32% and 0.54% for TCP and UDP subsequently. The successful encrypted data rises in average 0.3% and 1.3% for both TCP and UDP.

Penelitian ini bertujuan untuk merancang sebuah kamera menjadi lebih cerdas dengan menggunakan mode image processing menggunakan perangkat raspberry pi sehingga bisa memantau dan mengontrol suatu lokasi atau tempat dan memberikan laporan peringan melalui aplikasi media social whatshap ke smartphone yang sudah disetting ke perangkatnya. Sehingga dengan adanya perangkat smart security camera ini bisa menjadi lebih nyaman, lebih aman dan cepat mengetahui dan mengontrol keadaan ditempat-tempat yang kita inginkan. Maka dari penjelasan diatas judul penelitian ini adalah Perancangan Smart security Menggunakan Mode Image Processing dengan menggunakan Raspberry Pi.

Heart rate or pulse is an important parameter used to determine a person's mental state because when the heartbeat is abnormal, it is necessary to make further efforts to prevent undesirable things from happening. In this study, researchers plan to design the Heart Rate Monitoring and Stimulation with the Internet of Thing-Based (IoT) Qur'an Recitation. The steps taken to design a monitoring system and stimulate the human heartbeat are to design hardware and software. The sensor used is a pulse heart rate sensor as a heart rate detector processed by Arduino-based NodeMCU V3, the test results and measurements will be sampled using smartphone media. Data collection process; polytechnic students as objects taken by their heart rate data, the data collection process was carried out twice, the morning before the lecture began and the afternoon after the lecture process was complete, the testing process was done by taking data using a smartphone and turning on the Quran recitation for 2 minutes. Research is expected to be an stimulus indicator of heart rate, so that the heart rate is more relaxed and calm