The Fuzzy logic combined with PID control is designed to implement the effect of a disturbance force varying in magnitude, position, and duration to optimize the two wheeled and self-balancing robot. Matlab software was used to obtain Simulink-simulation of the experiment process. The simulation results shows that PID parameters that obtained from the use of auto-tuning is Kp = 16.60, Ki = 8.47, and Kd = 8.90. The simulation results of Fuzzy and PID combination shows that the error can be reduce approximately around 60 %. It is indicated that the Fuzzy logic with PID was better to reduce error in Two Wheeled and Self Balancing Robot than using Fuzzy logic.

The development of composite materials is increasingly widespread, which require superior mechanical properties. From many studies, it is found that the mechanical properties of composite materials are influenced by various factors, including the reinforcement content, both in the form of fibers and particle powder. However, those studies have not investigated the effect of the hardener weight fraction on the mechanical properties of resin composite materials. Even though its function as a hardener is likely to affect its mechanical properties, it might obtain the optimum composition of the reinforcing content and hardener fraction to get the specific mechanical properties. This study examines the effect of hardener weight fraction combined with fiber powder content on mechanical properties of EPR-174 epoxy resin matrix composite and determines the optimum of Them. The research was conducted by testing a sample of composite matrix resin material reinforced with coconut fiber powder. The Powder content was made in 3 levels, i.e.: 6%, 8%, and 10%. While the hardener fraction of resin was made in 3 levels, i.e.: 0.4, 0.5, and 0.6. The test results showed that pure resin had the lowest impact strength of 1.37 kJ/m2. The specimen with a fiber powder content of 6% has the highest impact strength i.e.: 4.92 kJ/m2. The hardener fraction of 0.5 has the highest impact strength i.e.: 4.55 kJ/m2. The fiber powder content of 8% produced the highest shear strength i.e.: 1.00 MPa. Meanwhile, the hardener fraction of 0.6 has the highest shear strength i.e.: 2.03 MPa.

Catalytic Converter (CATCO) material become an interesting field to investigate due to the common CATCO material being ceramic material that has high brittleness than metallic materials. Therefore, this research investigates the FeCrAl metallic material as CATCO substrate that is coated by γ-Al2O3 as a washcoat, Nickel Oxide (NiO) as a catalyst. The coating analysis was performed by ultrasonic using a frequency of 35 kHz and various ultrasonic times of 1, 1.5, 2, 2.5, and 3 hours and electroplating technique by sulphamate types electrolyte using variation times of 15, 30, 45, 60, and 75 minutes, a current density of 8 A/dm2. The result shows that the raw material was consists of Fe, Cr and Al with Fe element was dominated for 74.13wt%. Coated sample by ultrasonic consists of Fe, Cr, Al, O, and C elements due to FeCrAl substrate was deposited by γ-Al2O3 powder and by electroplating technique consists of Fe, Cr, Al, O, C, Ni and Na elements due to NiO deposition as catalyst material. TGA analysis observed that the highest mass change was observed by raw material 23.39 mg and UB+EL 30 min samples for lowest mass change of 2.85 mg with a point of the reaction is 0.07 mg/min may be caused by a protective oxide layer that developed during the coating process. Therefore, the coated metallic CATCO has a promising prospect to replace the ceramic CATCO due to high thermal stability by protecting layer and low mass change.

Dari data PT PLN Unit Induk Wilayah NTT didapatkan bahwa masih terdapat 352 desa yang belum teralirkan listrik dari PLN. Salah satu desa di NTT yang belum mendapatkan akses energi listrik adalah Desa Kojagete yang terletak di Kabupaten Sikka. Penduduk desa ini tinggal di pesisir pantai dan memiliki mata pencaharian sebagai nelayan. Desa Kojagete tergolong dalam desa tertinggal karena mayoritas penduduknya hidup dalam kemiskinan dan keterbelakangan. Untuk dapat mengurangi permasalahan hidup yang dialami oleh penduduk Desa Kojagete, perlu adanya sebuah solusi teknologi produk penelitian yang dapat memenuhi kebutuhan masyarakat terhadap akses energi listrik. Rekacipta yang diaplikasikan adalah Pembangkit Listrik Tenaga Surya (PLTS) berbasis Internet of Thing (IoT) yang merupakan suatu sistem yang paling cocok untuk wilayah pesisir pantai NTT yang memiliki curah matahari dengan intensitas yang sangat tinggi. Penerapan PLTS juga merupakan salah satu upaya mendukung sustainable development goals (SDGs) yang mana akan mengurangi pembakaran bahan bakar fosil yang menghasilkan karbon dioksida (CO2), karbon monooksida (CO) dan material-material partikulat yang dapat meningkatkan emisi gas rumah kaca. Kegiatan Pengabdian kepada Masyarakat ini dilakukan dengan beberapa tahap yaitu: penentuan lokasi, survey lapangan, perakitan dan uji coba, implementasi dan Monitoring dan evaluasi. Dari penerapan sistem pembangkit listrik tenaga surya yang dilengkapi dengan kontrol berbasis IoT ini, menghasilkan kapasitas listrik sebesar 8.500 watt peak, yang digunakan untuk mengalirkan listrik ke 48 rumah dan 3 (tiga) buah fasilitas umum, yaitu Masjid, Sekolah (SD), dan Posyandu.