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Abstract Topic: Electronics Engineering

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A Study of A Discrete Bayes and A Kalman Filter Computational Complexity and Performance in The Case of 1D Robot Localization
Indrazno Siradjuddin, Indah Martha Fitriani, Rosa Andrie Asmara, Mochammad Junus, Tundung Subali Patma, Gillang Al Azhar, Heri Setiawan

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Corresponding Author
Indah Martha Fitriani

Institutions
State Polytechnic of Malang

Abstract
In the robotic field of study, localization is one of the important methods for autonomous mobile robot navigation. Probabilistic approaches have received significant attention in the robotics community. The discrete Bayes and Kalman filters are the fundamental algorithms in probabilistic approach which have to be clearly understood in order to develop more advanced filtering algorithms. This paper discusses discrete Bayes and Kalman filtering algorithms. The mathematical representation of each filter algorithm, in the 1-dimensional case, presented in detail. The algorithms were implemented using python to simulate the probability of the robot position. The algorithms complexity was analyzed with respect to the computational cost and size of memory used. From this study, it has been observed that the Kalman filter is computationally more efficient, and less memory is required.

Keywords
Algorithms, Kalman Filter, Bayes

Topic
Electronics Engineering

Link: https://ifory.id/abstract/7EjvNQA2XT4J


Android-based Indonesian Sign Language Model Using Robot Hand
Taryudi(*), Pitoyo Yuliatmojo, Muhammad Angga Paripurna

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Corresponding Author
TARYUDI .

Institutions
Faculty of Engineering, Universitas Negeri Jakarta
Jakarta, Indonesia
Email: (*)taryudi[at]unj.ac.id

Abstract
Sign language is one of the most effective ways to communicate with deaf people. However, not everyone is able to use sign language. Therefore in this study, a sign language display system was created using a hand robot that was moved through an Android-based application on a smartphone to overcome this problem. The design and development of the system begin from the manufacture of hardware consisting of one hand robot with 11 servo motors as the actuators, the Arduino Mega 2560 microcontroller as the main controller and a Bluetooth module for wireless communication between hand robot and smartphone. Then software development is carried out on the hand robot controller and android based application on a smartphone. Furthermore, system testing is carried out by validating the results of the letters and numbers shown by hand robot with gestures in the Indonesian Language Signaling System Dictionary (SIBI). The results show that the hand robot has been able to display letters and numbers according to the instructions given by an Android-based application on a smartphone with an 80% accuracy rate.

Keywords
Robot hand, Indonesian sign language, Arduino, Android

Topic
Electronics Engineering

Link: https://ifory.id/abstract/rLNTn87E3K9Q


Controllable and Observable Control Design of Wind Generator System using PID Algorithm
Budhy Setiawan, Septyana Riskitasari, Ratna Ika Putri, Supriatna Adhisuwignjo, Ika Noer Syamsiana, Wahyu Aulia Nurwicaksana

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Corresponding Author
Septyana Riskitasari

Institutions
State Polytechnic of Malang

Abstract
This paper describes a design process of the wind generator control system. Controlling a wind generator, fan, is important to study the design of the wind turbine. A complex wind generator model was approximated with 5th order polynomial function. The paper describes a procedure for identifying system, especially for finding the transfer function of a plant, that based on input and output. The plant input is an electric motor fan voltage and output is wind speed produced. It is important to simplify control design of the wind generator for configuring transfer functions of the plant. The identification method that is used is Linear Regression, applying Excel program, which produces a polynomial function. And then, the Matlab System Identification Toolbox (SIT), which produces a transfer function. From this study, applying SIT, a model of wind generator, shows the fit estimation data is 90.78% and MSE is 0.078%. A closed-loop control system using PID controller is proposed. Controllable and Observable of the state space model were verified. The best performance of the close-loop system was achieved using Kp = 0.2247, Ki = 6.05*10-5, and Kd = 208.75 applying Ziegler-Nichols. The result shows that closed-loop stability of wind generator system is stable.

Keywords
Wind Generator; SIT, PID; Controllable; Observable

Topic
Electronics Engineering

Link: https://ifory.id/abstract/LDXTKWrbN7ca


Depth Control Design and Simulation of Hybrid Underwater Glider
Ayu Latifah

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Corresponding Author
Ayu Latifah

Institutions
Department of Informatics, Sekolah Tinggi Teknologi Garut, Jl. Mayor Syamsu No. 1, Garut, Indonesia
*ayulatifah[at]sttgarut.ac.id

Abstract
Hybrid underwater glider is a class from autonomous underwater vehicle (AUV) that the concept of a buoyancy-engine to drive the vehicle sinking or floating are integrated and propeller propulsion systems for variable motion. This kind of vehicle has multi-functionality that enables to maneuver with glider and AUV mode so that it is effective tool for oceanographic research. To represent the vehicle dynamic, the mathematical model base on newton-euler approach is designed as nonlinear equation that derive from forces and moment that acting from the vehicle design. For glider motion, buoyancy-engine and moving mass are coupled for working as input controller actuator, and there is controlling need to make the vehicle go to mission point in some depth for a mission. In this paper depth controller will be designed to make the vehicle stay on depth condition. PID controller are used for controller design, that the mathematical model are derived to linier model. Simulation on Simulink MATLAB are used to design the model and get vehicle dynamic respon. With vehicle characteristic for glider motion, desired waypoint obtained with PD control for moving mass in x-axes and P controller for buoyancy engine.

Keywords
HUG; AUV; Depth control; linear; PID

Topic
Electronics Engineering

Link: https://ifory.id/abstract/KdHV2x9DvgqM


Desain Prototype Automatic Grain Drayers
Muh Abdul Latif*, Ade Gafar Abdullah, Tjetje Gunawan

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Corresponding Author
Muh Abdul Latif

Institutions
Departemen Pendidikan Teknik Elektro, Fakultas Pendidikan Teknologi dan Kejuruan, Universitas Pendidikan Indonesia, Jln. Setiabudhi No. 229, Bandung, Indonesia

*muhabdullatif18[at]gmail.com

Abstract
The aim of this research to know how to create and test and want to know the advantages and disadvantages of automatic grain dryers. After doing the manufacture and testing obtained beam-shaped tool with dimensions of 50 x 20 x 40 cm, equipped tube dryer container, stirrer arm, artificial heating furnace, the blower along with air, motors, track spending and funnel as well as the brain using an Arduino Uno R3. The test results showed the water level sensor accuracy level of 0.2% and a temperature sensor in 0.28%. The drying time for drying grain from grain initial moisture content of 24.48% to 14% over 82 minutes. This tool can dry the grain faster, equipped with temperature regulation, as well as an LCD display that allows users to monitor during the drying process. However, this tool still leaves the grain after drying process and also an LCD display that allows users to monitor during the drying process. However, this tool still leaves the grain after drying process and also an LCD display that allows users to monitor during the drying process. However, this tool still leaves the grain after drying process.

Keywords
grain; moisture content; automatic grain dryers; Arduino Uno R3

Topic
Electronics Engineering

Link: https://ifory.id/abstract/YRw8KW3txDUH


Design of Substrate Integrated Waveguide to Improve Antenna Performances for 5G Mobile Communication Application
Efri Sandi, Aodah Diamah, Dinny Nur Fajriah, Baso Marudani

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Corresponding Author
Efri Sandi

Institutions
Department of Electrical Engineering, Universitas Negeri Jakarta
Jalan Rawamangun Muka Jakarta Timur, Indonesia 13220

Abstract
In this paper a new design of substrate integrated waveguide was developed to improve the gain performance of microstrip antennas for 5G antenna applications. The antenna and substrate integrated waveguide was designed at freq 28 GHz millimeter-wave band. The design of substrate integrated waveguide was developed by design an H-slot structure without gap in the substrate layer to provide better matching impedance and reduce loss of surface wave microstrip antenna. This study was conducted with a research and development approach through the calculation of the H-slot structure on substrate integrated waveguide and simulated by using antenna design software simulation. The numerical result shows that new design of H-slot structure without gap model was improved antenna return loss more than 8 dB and bandwidth more than 1 GHz . This result has shown a significant improvement compared to antenna design without using substrate integrated waveguide.

Keywords
H-Slot Design; Substrate Integrated Waveguide; Gain; 5G Antenna

Topic
Electronics Engineering

Link: https://ifory.id/abstract/Gt7pgnqmyhxc


Design of Two Stage Low Noise Amplifier at 2.4 -2.5 GHz Frequency using Mikrostrip Line Matching Network Method
Baso Maruddani (a, b*), Mufti Ma-sum (a), Efri Sandi (a), Tipla Daniati (c)

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Corresponding Author
Baso Maruddani

Institutions
Baso Maruddani (a,b*), Mufti Ma-sum (a), Efri Sandi (a), Tipla Daniati (c)
a) Engineering Faculty,Universitas Negeri Jakarta
Jalan Rawamangun Muka, Jakarta Timur 13220, Indonesia
*) basomaruddani[at]unj.ac.id
b) DJA Institute
Apartemen The Green Pramuka City, Tower Fagio
Jl. Jendral Ahmad Yani Kav. 49. Rawasari, Cempaka Putih, Jakarta Pusat 10570
c) Vocational High School 10
Jalan Servas, Jatimelati, Pondokmelati, Bekasi, West Java, 17415, Indonesia

Abstract
This study is aims to design a Low Noise Amplifier (LNA) with two stage cascade configuration at frequency of 2.4 -2.5 GHz. The transistor that used in this study has characteristic of high gain and low noise. The design is using microstrip line matching network with single stub technique to minimize parasitic effects. Transistor is using cascade configuration to produce high gain and improve the stability. The simulation results show that the LNA has reached all of expected specification at frequency of 2.45 GHz where S21, NF, S11, S22 are 30.693 dB, 1.248 dB, -70.358 dB and -72.982 dB, respectively; Also other values VSWR input, VSWR output, stability (K), input impedance and output impedance at 50Ω are 1.001, 1.0004, 5.280, 50.010 + j0.029 and 49.991 + j0.02, respectively. The measurement results show that at frequency of 2.45 GHz, LNA obtained value of S21, S11, S22, VSWR input, VSWR output are 22.17 dB, -4.117 dB, -13.049 dB, 4.297 and 1.572, respectively. Whereas, the best measurement of S21 is 24,05 dB at frequency of 2.05 GHz), S11 is -5.700 dB at frequency of 2.0 GHz , S22 is -27.570 dB at frequency of 2.045 GHz, VSWR input is 3.07 at frequency of 2,0 GHz and VSWR output is 1,09 at frequency of 2.045 GHz.

Keywords
LNA; Cascade; Voltage Divider, Mictrostip Line Matching Network, VNA

Topic
Electronics Engineering

Link: https://ifory.id/abstract/m9zfw7UvuZbA


Designing, Implementing and Analyzing Optimal Controllers on A Non Linear Reaction Wheel Pendulum
Indrazno Siradjuddin, Erlillah Rizqi Kusuma Pradani, Erfan Rohadi, Supriatna Adhisuwignjo, Mila Kusumawardani, Indah Martha Fitriani

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Corresponding Author
Erlillah Rizqi Kusuma Pradani

Institutions
State Polytechnic of Malang

Abstract
This paper discusses a reaction wheel control system. A reaction wheel pendulum is good example of a non linear and underactuated system, which attracts control system researchers to develop many control algorithm. The reaction wheel plant is usually used for studying advanced control system courses. In this paper, a mathematical model of the state space is discusses. A proposed LQR (Linear Quadratic Regulator) control algorithm is explained. Simulation and real time experiments have seen carried out to varify the performance of the proposed closed loop system. The LQR (Linear Quadratic Regulator) optimisation algorithm was able to find the optimum feed back gains. The simulation and real time experiments show that the reaction wheel pendulum could stabilize the pendulum at upright position.

Keywords
Reaction Wheel Pendulum; State Space; LQR Method

Topic
Electronics Engineering

Link: https://ifory.id/abstract/y9QdTceBVaHY


Development of Smart and Safe Bags for Children Based on Microcontroller
Ahmad Baihaqi, Wisnu Djatmiko and Muhammad Yusro

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Corresponding Author
Muhammad Yusro

Institutions
Faculty of Engineering, Universitas Negeri Jakarta

Abstract
This study aims to develop smart and safe bags that children use to go to school. This bag can provide information about the bag weight and the location of the user via text messages (SMS). The bag is designed using several main electronic devices, namely the Microcontroller (Arduino Mega 2560 Board), the Buck Adjustable IC LM2956 Module, the 5 Kg Load Cell Sensor, the Neo 6M-V2 GPS Module and the 800L SIM Module. From the test results, this bag system can measure the bag weight of up to 5 Kg with measurement accuracy reaching around 0.3 Kg; can read the user position with the accuracy of the GPS position reading reaching around 25 meters, and can provide bag weight information and user position through SMS communication. This bag is also capable of working for around 8 hours using a rechargeable Li-Po 3S 1400mAH battery.

Keywords
smart bag; GPS; SMS, arduino; microcontroller

Topic
Electronics Engineering

Link: https://ifory.id/abstract/ej8yrRvfWzPX


Double Layer Parasitic Radiator for S-Band Antennas to Increase Gain and Bandwidth Performances
Efri Sandi, Aodah Diamah, Muhammad Wahyu Iqbal, Dinny Nur Fajriah

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Corresponding Author
Efri Sandi

Institutions
Department of Electrical Engineering, Universitas Negeri Jakarta
Jalan Rawamangun Muka Jakarta Timur, Indonesia 13220

Abstract
In this paper a parasitic radiator combination was developed to improve the gain performance and bandwidth of the S-Band frequency microstrip antenna. Previous studies focused on adding one side layer of the parasitic radiator and the same structure, so the idea emerged to develop a microstrip antenna by adding parasitic radiators from the two sides of the antenna radiator layer and the different structure of parasitic structure. In this paper, the design of the parasitic radiator is added by combining the circular parasitic radiator patch on the upper layer of the antenna radiator and the square parasitic radiator patch on the bottom layer of the antenna radiator. This study uses a research and development approach through the calculation of parasitic radiator structure and setting the distance between layers. Simulation and measurement results show that by adding a parasitic combination of radiators with a distance of 0.38 λ at the top layer and 0.15 λ at the bottom layer of the antenna, a better gain and bandwidth performance improvement is compared to the addition of parasitic radiator designs in previous studies.

Keywords
Double Layer, Circular Parasitic Radiator, Square Parasitic Radiator, Gain, Bandwidth.

Topic
Electronics Engineering

Link: https://ifory.id/abstract/HVYycrezPWKu


Electronic Control for Optimizing Power Absorption of Darrieus Vertical Axis Wind Turbine by Adjusting Angle of Attack Method
Budhy Setiawan, Wahyu Aulia Nurwicaksana, Ika Noer Syamsiana, Supriatna Adhisuwignjo, Ratna Ika Putri, Gatot Joelianto, Septyana Riskitasari

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Corresponding Author
Wahyu Aulia Nurwicaksana

Institutions
State Polytechnic of Malang

Abstract
This paper presents a mechanical design and electronic control for the angle of attack on the Vertical Axis Wind Turbine(VAWT) darrieus type with NACA0015 and 3 blades. This research was conducted to obtain high efficiency absorption power on various wind speed. The VAWT mechanical design is based on systematic calculations with a height of 150cm and a diameter of 120cm. NACA0015 airfoil with calculations in the NACA airfoil database obtained blade length of 15.892cm and width of 1.905cm. The electronic control on this system, Arduino mega controller, has input from an anemometer sensor, and rotary encoder sensor. While, the output is servo motors for 3 blade. A microprocessor control unit is programmed to control the adjustment of blade angle of attack. The angle of attack is defined by wind speed, angular speed of VAWT, and a defined TSR (Tip Speed Ratio). The angle of attack control method is PID (Proportional-Integral-Derivative) algorithm. By setting the TSR value constantly at 3.5-4, the angle of attack will be adapted even on any various wind speed. As a result, the maximum power absorption will be obtained on various wind speed. This system can increase power efficiency of VAWT up to 35-40%.

Keywords
Angel of Attack; Power Optimizing; TSR; Various Wind Speed; VAWT

Topic
Electronics Engineering

Link: https://ifory.id/abstract/Uj2WuqzbZ4pn


Glidding System for a Fixed Wing Aircraft Using PID Control Algorithm
Budhy Setiawan, Dekki Widiatmoko, Indrazno Siradjuddin, Supriatna Adhisuwignjo, Ferdian Ronilaya, Mokhammad Syafaat

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Corresponding Author
Dekki Widiatmoko

Institutions
State Polytechnic of Malang

Abstract
In each unmanned vehicle (UAV) task, the power 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 BMP 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 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 BMP120 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.

Keywords
UAV , FWA , BMP and PID

Topic
Electronics Engineering

Link: https://ifory.id/abstract/QagWZDkr9UGm


Measurement concept to comprehend the transistor circuits calculation
Moch. Sukardjo, Agus Dudung, Lipur Sugiyanta

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Corresponding Author
Moch Sukardjo

Institutions
Universitas Negeri Jakarta
Jln. Rawamangun Muka Raya, Jakarta Timur, 13220

Abstract
This research aimed to discover how the concept of measurement is applied to transistor circuits, especially bias transistor circuit, collector feedback circuit, small signal amplifier circuit and class A amplifier circuit. The methodology used was experiment by comparing the results of pre-test and post-test. Data will be analyzed using t test. Population in this study were students of the electrical engineering education study program at Engineering Faculty, Jakarta State University. The sample was randomly registered students whose electronic courses selected from 2 classes. The results showed that the master learning of students had more advanced, especially in describing and analyzing the transistor circuits calculation.

Keywords
measurement, transistor, transistor amplifier

Topic
Electronics Engineering

Link: https://ifory.id/abstract/tjphdcrF3AUu


Modified cooperative learning methods in teaching computer programming laboratory course for electronics engineering students
Andriani Parastiwi, Ekojono, Anugrah Nur Rahmanto

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Corresponding Author
Andriani Parastiwi

Institutions
Politeknik Negeri Malang

Abstract
Modified cooperative learning is a class-based active learning strategy, where students work on problems posed by lecturers, first individually, then in small groups, and finally as class discussions. This method allows students to express their reasoning, reflect on their thoughts, and get immediate feedback about their understanding. In this study, an investigation of the quantity and quality of student involvement was conducted in the Computer Programming Laboratory course in the electronics engineering department. Lecture material is prepared to support cooperative learning as well as class observations of students conducted by cooperative learning in the course. The pattern of student involvement was observed using the student behavior observation form that was developed and validated. Data triangulation was done with student perception survey data. The results showed that matching timing varied depending on the topic with an average of 20 minutes for the concept presentation by the lecturer. Student involvement is very high in the form of writing and discussing groups and classes. Triangulation of student perceptions states that students feel actively involved fully in the learning process.

Keywords
cooperative learning, computer programming, eengineering

Topic
Electronics Engineering

Link: https://ifory.id/abstract/fhAwPmRq8Kpz


Nominal Banknotes Reading Tools for the Blind
Aditya Ramadhan Islami*, Ade Gafar Abdullah, Aip Saripudin

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Corresponding Author
Aditya Ramadhan Islami

Institutions
Departemen Pendidikan Teknik Elektro, Fakultas Pendidikan Teknologi dan Kejuruan, Universitas Pendidikan Indonesia, Jln. Setiabudhi No. 229, Bandung, Indonesia

*aditya.ramadhan94[at]gmail.com

Abstract
Limitations of blind people to see the problem in terms of communication so they just rely on their sense of touch and hearing to determine the nominal money he has, often blind also rely on other people they trust to provide information. From the background of this problem researchers want to create a research by making a nominal reading devices banknotes. In the making of this style uses a sensor that functions as a sensor TCS3200 color reader on money and nano Arduino microcontroller as a data processor, then the output of sound. The purpose of this study was to determine the accuracy of the percentage of the nominal reading devices for the visually impaired banknote design and build and to know the advantages and disadvantages of tool design and build it. Based on test results obtained percentage accuracy rate of 93.21, but still there are some flaws in the design and build tools such as; the tool can not distinguish genuine money with counterfeit money, as well as the success of their money reading deeply affected by the physical condition of the money

Keywords
Tools nominal read; Visually impaired; TCS3200 sensors; Arduion nano; Color sensors

Topic
Electronics Engineering

Link: https://ifory.id/abstract/KefY29Dgphbx


PID Controller for a Differential Drive Robot Balancing System
Indrazno Siradjuddin, Mokhammad Syafaat, Tundung Subali Patma, Supriatna Adhisuwignjo, Totok Winarno, Achmad Komarudin, Dekki Widiatmoko

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Corresponding Author
Mokhammad Syafaat

Institutions
State Polytechnic of Malang

Abstract
Controlling a differential drive robot balancing system is a challanging task since it is highly unstable, non-linear and under-actuated system. This paper proposes a PID controller algorithm to balance the 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.

Keywords
Robot balancing; Controller; Stabilize robot

Topic
Electronics Engineering

Link: https://ifory.id/abstract/npNUZErL6PXz


Simple Design of Theremin as Musical Instrument Non-Contact Based Light Dependent Resistor (LDR)
Baiq Ida Arianti1, Cecep Rahmat1, Inayati Juwita Sari1, Siti Wulandari1, Lisa Ratna Sary1, Maria Januaria Shepa1, Desyani Ambarwati1, I Made Astra1, Achmad Ainul Yaqin2, Iwan Sugihartono3*

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Corresponding Author
Iwan Sugihartono

Institutions
1Program Magister Pendidikan Fisika, FMIPA, Universitas Negeri Jakarta, Jl. Rawamangun muka no. 01, Rawamangun, Jakarta Timur 13220, Indonesia
2Laboratorium kontrol, FMIPA, Universitas Negeri Jakarta, Jl. Rawamangun muka no. 01, Rawamangun, Jakarta Timur 13220, Indonesia
3Program Studi Fisika, FMIPA, Universitas Negeri Jakarta, Jl. Rawamangun muka no. 01, Rawamangun, Jakarta Timur 13220, Indonesia

Abstract
We have developed a theremin as musical instrument non-contact based on LDR using arduino uno as primary interface. The musical instrument system consist of one LDR, arduino uno rev3, buzzer, and LCD display. By adjusting the distance, the frequency will change and produce tones. Our demonstration confirmed that do(C6), re (D6), noodles (E6), fa (F6), sole (G6), la (A6), si (B6), do-(C7) have frequencies at 1046 Hz, 1174 Hz, 1318 Hz, 1396 Hz, 1567 Hz, 1760 Hz, 1975 Hz, 2093 Hz, respectively.

Keywords
Theremin, non-contact, LDR, frequency, tones

Topic
Electronics Engineering

Link: https://ifory.id/abstract/zRawXZtPBE9x


Simple Smart Glasses based on Microcontroller as Money Detector of Nominal and Authenticity
Marie Muhammad, Muhammad Yusro and Pitoyo Yuliatmojo

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Corresponding Author
Muhammad Yusro

Institutions
Faculty of Engineering, Universitas Negeri Jakarta

Abstract
This study aims to make a detector for the nominal value and authenticity of money (rupiah currency). The working principle of this tool is as follows: UV LEDs function to provide lighting to objects (money). The light will circulate hidden colors in real money so that you can differentiate real money or money whose authenticity is doubtful. The White LED provides lighting for the object, then the light is received by the TCS 3200-DB color sensor to read its Red, Green, and Blue (RGB). Furthermore, the RGB value will be processed by Arduino Mega 2560 to be compared with the RGB values in the program. The mini DFPLayer functions to play sound according to the sound that has been recorded with the program. Testing the tool is done to determine the percentage of success of the tool in distinguishing between original money and the authenticity of money is doubtful. Testing of 7 (seven) nominal 2016 emission rupiah, namely Rp. 1,000 (80%), Rp. 2,000 (60%), Rp. 5,000 (100%), Rp. 10,000 (100%), Rp. 20,000 (80%), Rp. 50,000 (100%) and Rp. 100,000 (66%), so the average percentage of success of the tool is 83.71%.

Keywords
money detection; microcontroller; Arduino Mega 2560; color sensor

Topic
Electronics Engineering

Link: https://ifory.id/abstract/qAtV2g9UfQbr


Smart Home Prototype Base Internet
Wildan Arasid, Ade Gafar Abdullah, Wawan Purnama

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Corresponding Author
Wildan Arasid

Institutions
Pendidikan Teknik Elektro
Universitas Pendidikan Indonesia
Bandung, Indonesia
wildanarrasyid55[at]gmail.com

Abstract
By the rapid development of technology, automation systems are widely used. The usage of automation system in house is to create comfort, safety and also energy savings by controlling home appliances according to the desired distance. This smart home prototype based on internet is created to apply the smart home system working automatically and controlled manually through internet network by using ESP8266-12e module. This system controls lamp and solenoid valve as a tap water. The used method in this study is an experimental method consists of field study and problem identification, literature study, expert consulting, design and manufacturing, field testing, results analysis, create reports and journal. The testing result shows that the system function properly and automatically controlled through the website.

Keywords
Smart Home, ESP8266, LDR Sensor, Ultrasonic Sensor

Topic
Electronics Engineering

Link: https://ifory.id/abstract/nqMut9hVgjZH


Steering Control Design and Simulation of Hybrid Underwater Glider
Ayu Latifah

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Corresponding Author
Ayu Latifah

Institutions
Department of Informatics, Sekolah Tinggi Teknologi Garut, Jl. Mayos Syamsu No. 1, Garut, Indonesia

Abstract
A new class of autonomous underwater vehicle (AUV) is hybrid underwater glider (HUG) that integrates buoyancy engine and propeller as main actuator. This kind of vehicle has multi-mode to act, that is glider and AUV mode that derive to mathematical model for longitudinal and lateral plane. To design steer control of HUG, the mathematical model derive to linier equation, and the variable controller is rudder for yaw control and main thruster for speed control of HUG. The method of control design are PID, there is PD for yaw controller and P for speed controller that are simulated using Simulink MATLAB to get response so that we can verified the dynamic model for steering control using waypoint desire. The results demonstrate dynamic response for lateral plane over waypoint on the surfaces of water.

Keywords
AUV; HUG; Steer control; linear; Simulink MATLAB

Topic
Electronics Engineering

Link: https://ifory.id/abstract/yfEegMzqHZar


Study of LoRa (Long Range) Communication for Monitoring of a Ship Electrical System
Budhy Setiawan, Ekananda Sulistyo Putra, Indrazno Siradjuddin, Mochammad Junus, Denda Dewatama, Suko Wiyanto

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Corresponding Author
Ekananda Sulistyo Putra

Institutions
State Polytechnic of Malang

Abstract
This paper presents a study of long range (LoRa) communication for monitoring of a ship electrical system. Three categories of electrical system include generator, power distribution, and navigation are monitored. A low power communication technology of LoRa is used to transmit electrical variables such as current, voltage, and power are logged and sent to the server. Experiments using LoRa SX1278 and Arduino have been inducted to validate the performance of the communication. Three spreading factors 12, 7, 6 have been tested. From experiments results, the performance of the communication has been analyzed, if has been found that 97% successful data transmission was achieved with maximum distance. Furthermore, small baudrate communication was more suitable for the application.

Keywords
Long Range (LoRa) Communication; Monitoring; Ship Electrical System

Topic
Electronics Engineering

Link: https://ifory.id/abstract/Xfb2gcJDBaW4


Study of Nusantara Satu Satellite Parameter Evaluation for Broadband Application in Indonesia
Baso Maruddani (a,b*), Efri Sandi (a), Widya Dara (a)

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Corresponding Author
Baso Maruddani

Institutions
a) Engineering Faculty, Universitas Negeri Jakarta
Jalan Rawamangun Muka, Jakarta Timur 13220, Indonesia
*basomaruddani[at]unj.ac.id

b) DJA Institute
Apartemen The Green Pramuka City, Tower Fagio
Jl. Jendral Ahmad Yani Kav. 49, Rawasari, Cempaka Putih, Jakarta Pusat 10570, Indonesia

Abstract
This study aims to evaluate the performance of Satellite Nusantara Satu which has just been launched. Satelit Nusantara Satu is a broadband satellite that uses High Throughput Satellite (HTS) technology and uses Ku-band transponders to cover all regions in Indonesia. However, the use of Ku-band frequencies in Indonesia, which is located at a tropical region, must be evaluated because of the characteristics of the Ku-band frequency are very vulnerable to rain attenuation. In general, a broadband service requires link availability of 99.9% with a minimum speed of 100 Mbps. Our simulation results show that in the western part of Indonesia, to reach 100 Mbps with 99.9% link availability, the EIRP of the earth station VSAT is minimum at 79 dBW. In the central part of Indonesia, to reach speeds of 100 Mbps with 99.9% link availability, the EIRP of the earth station VSAT is minimum at 83 dBW. And in the eastern part of Indonesia, to reach speeds of 100 Mbps with 99.9% link availability, the EIRP of the earth station VSAT is minimum at 84 dBW.

Keywords
Satellite; Ku-band; Broadband; EIRP; VSAT

Topic
Electronics Engineering

Link: https://ifory.id/abstract/b3B8nmTqxFjC


The Automatic Battery Charger Based on Floating technique
Edi Mulyana, Tatang Dwi Atmoko, Lia Kamelia

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Corresponding Author
Lia Kamelia

Institutions
Faculty of Sciences and technology
UIN Sunan Gunung Djati Bandung

Abstract
An automated system will simplify all the work done by humans. One of the automatic systems that has been used is the battery charger system that can be cut by itself. This paper discussed the implementation of automatic systems for battery chargers based on floating techniques. The system will automatically fill and repair the battery from several causes of damage such as overcharging the battery. This charger functions with the switch system turning on and off. The circuit works by comparing the input that goes into the IC, and makes the control input as the main standard of 1.10 V which is attached on a positive foot (pin3) on the IC. The main control system consists of Transistor BC547, IC LM358 and Transistor 2N2907A. This system also uses two transformers, each of which is used to support control and power supply. For the control section using 1A transformer and for power supply using 2A. This system will automatically switch on when the load level is below 12.27 V. From the test results of 1 hour charging, the average charging voltage is 1.718 V and the measured output current is 0.8 A.

Keywords
Automation;battery;charger;float technique

Topic
Electronics Engineering

Link: https://ifory.id/abstract/cTEFkjytVWn4


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