Controlling a differential drive robot balancing system is a challenging task since it is highly unstable, non-linear and under-actuated system. This paper proposes a PID controller algorithm to balance a differential drive robot at upright position. The system model derived using Lagrangian method is discussed. The resulting mathematical model of the proposed closed-loop system was simulated. To verify the system performances, the real time experiments have been conducted. An Arduino Uno and an MPU6050 were used as the main controller and the main sensor, respectively. The PID parameters were manually tuned until the desired performance was achieved. From the simulation and the real time experiment results, the proposed method has demonstrated its capability to stabilize robot at upright position.

In every Unmanned Aerial Vehicle (UAV) task, the power supply used is limited. UAVs are often forced to land when the battery runs out before the mission is completed. The gliding controller is proposed in this paper so that Fixed Wing Aircraft (FWA) can fly with minimal power and can adjust direction, altitude, zero pitch and zero roll stability. The FWA uses a Barometric Pressure Measure (BMP) 180 sensor at the tip of the wing to detect the difference in pressure experienced by both wings, therefore, the direction of the wind can be determined. The information of the wind direction was then used to maintain the desired altitude of the FWA. The Proportional Integral Derivative (PID) control algorithm was implemented to stabilize the FWA altitude to keep cruising or flying in a flat position. Real-time experiments using FWA have been conducted. It can be observed that the FWA was able to air with automatic glider mode for almost 2 minutes. Tests carried out include altitude data, roll and pitch movement from BMP180 sensor readings, the glidding performance has been observed with respect to the altitude, roll and pitch errors. It was measured that the altitude, the roll and the pitch errors were 1.74%, 0.23% and 0.34%, respectively.

– The task of Army Aviation Operations is carried out in remote areas where airport services are still minimal, the process related to refueling for pilot helicopters is an obstacle in carrying out the pilot's main tasks. So, we need tools to make the process more effective. This research uses a method that will obtain quantitative data for research to prove the hypothesis. The method is known as the Development Life Cycle Waterfall Diagram and experimental research. Currently still using a hand pump, therefore it is necessary to have a tool that is portable and uses an electric pump. specifically for fuel which is controlled by Arduino and the android application as input for a filling command and can store charging data. In this case the tool system uses supporting components, namely batteries, Bluetooth hc 05, 5v relays and flow sensors. With the research on portable pump tools, the process can be more efficient than hand pumps. When refueling the helicopter, it is enough to enter the charging value from the android application, the charging is already running, and the charging data is stored in the android file.

Jantung merupakan bagian organ tubuh manusia yang sangat penting, pada tubuh manusia jantung tersebut sebagai pertahanan hidup terakhir setelah otak. Denyut dari jantung bekerja sendirinya dan tidak bisa dikontrol oleh manusia. Detak jantung di representasikan sebagai beat per minute (BPM). Setiap denyut jantung manusia yang normal berkisaran angka 60-100 permenit, apabila angka tersebut lebih maupun kurang maka dikategorikan tidak normal. Dalam kondisi lingkungan yang  tercemar dan polusi udara terkontaminasi virus maka dapat membahayakan jantung. Virus tersebut dapat menular ke makhluk hidup lainnya secara cepat melalui udara secara bebas. Akhir tahun 2019 ditemukan virus covid-19 di wuhan. Virus tersebut sangat membahayakan dan menyerang pernafasan sehingga mengakibatkan korban jiwa, serta virus corona sudah menyebar luas seluruh dunia. Penelitian ini sangat penting berdasarkan data statistic angka penyebaran covid-19  semakin bertambah dengan beberapa kasus. Penelitian ini mempunyai tujuan untuk membantu prajurit TNI yang akan melaksanakan tugas operasi baik didalam maupun luar negeri. Sehingga tingkat efisiensi waktu dan biaya dapat diminimalisir guna memberikan pelayanan pada prajurit TNI. Metode yang digunakan pada Polector C-19 yaitu metode Photoplethysmography (PPG) dengan berdasarkan parameter data gejala covid-19. Tingkat nilai kesalahan  pada Polector C-19 mencapai 0,3%.

Indonesia termasuk negara maritim terbesar di dunia dengan jumlah 80% dari wilayahnya berupa lautan. yang bisa menyebabkan susahnya pengintaian terhadap keamanan di wilayah NKRI yaitu khususnya dalam sektor maritim. Oleh karena itu sangat dibutuhkan desain kosep kapal selam mini yang cepat tanggap sebagai alusista pengintaian dan wilayah maritim Indonesia tersebut. yaitu dengan menggunakan rancangan drone underwater dengan system Arduino Uno yang telah dibuat pada kali ini. Pada penelitian ini merancang  sistem kendali gerak robot dengan jenis kontrol yang telah diiplementasikan menggunakan sistem kendali jarak jauh yang memanfaatkan remote control sabagai alat bantu komunikasi wireless, joystick sebagai penghasil data dan diolah menggunakan arduino uno. Untuk dapat menerima data yang telah dikirim dirancang sebuah penerima wireless IA6B receiver kemudian data tersebut dijadikan sebagai instruksi dalam mengontrol gerak robot. Dari hasil penelitian didapatkan bahwa remote control flysky dapat digunakan mengontrol gerak robot dengan hasil data jarak kontrol maksimal 50 meter, ini membuktikan bahwa sistem kendali menggunakan wireless remote control flysky  berjalan dengan baik dan dapat mengontrol pergerakan sesuai dengan instruksi yang diberikan melalui joystick