scholarly journals Kendali Alat Pelontar Bola Tenis Lapangan Berbasis Mikrokontroler

2020 ◽  
Vol 1 (2) ◽  
pp. 187-192
Author(s):  
Gusnita Parmita Sari ◽  
Sukardi Sukardi
Keyword(s):  
Dc Motor ◽  
Push Button ◽  
Button Switch

Alat Pelontar Bola Tenis dapat mempermudah pelatih dalam menerapkan ball feeling pada atletnya. Pelontar bola tenis di kontrol oleh mikrokontroler Arduino Mega 2560 menggunakan bahasa pemograman C, yang dikontrol adalah motor DC, motor stepper beserta rangkaian lainnya. Pengaturan kinerja motor agar bekerja sesuai yang dibutuhkan digunakan beberapa komponen seperti Push Button, Switch, dan Potensiometer. Alat ini juga menggunakan 2 buah sensor yaitu ACS712 sensor arus, dan Sensor Tegangan ZMPT101B yang digunakan dalam pembacaan arus beserta tegangan pada motor. Hasil dari Alat pelontar bola tenis adalah dapat melontarkan bola tenis dari arah kiri, kanan, atas, tengah dan bawah.

EFFECT OF PULSE WIDTH MODULATION ON DC MOTOR SPEED

2017 ◽  
Vol 5 (2) ◽  
pp. 42 ◽  
Author(s):  
Cosmas Tatenda Katsambe ◽  
Vinukumar Luckose ◽  
Nurul Shahrizan Shahabuddin
Keyword(s):  
Duty Cycle ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Dc Motor ◽  
Buck Converter ◽  
Motor Speed ◽  
Push Button ◽  
Cycle Rate ◽  
Speed Controller ◽  
And Performance

Pulse width modulation (PWM) is used to generate pulses with variable duty cycle rate. The rapid rising and falling edges of PWM signal minimises the switching transition time and the associated switching losses. This paper presents a DC motor speed controller system using PWM technique. The PWM duty cycle is used to vary the speed of the motor by controlling the motor terminal voltage.The motor voltage and revolutions per minutes (RPM) obtained at different duty cycle rates. As the duty cycle increases, more voltage is applied to the motor. This contributes to the stronger magnetic flux inside the armature windings and the increasethe RPM. The characteristics and performance of the DC motor speed control system was investigated. In this paper, a PIC microcontroller and a DC-DC buck converter are employed in the DC motor speed controller system circuit. The microcontroller provides flexibility to the circuit by incorporating two push button switches in order to increase and to decrease the duty cycle rate. The characteristics and performance of the motor speed controller system using microcontroller was examined at different duty cycle rate ranging from 19% to 99%.

scholarly journals Prototype Robot Waiter at Fast Food Restaurants

2018 ◽  
Vol 6 (2) ◽  
pp. 80-91
Author(s):  
Ari Prayoga ◽  
Bobi Kurniawan
Keyword(s):  
Fast Food ◽  
Dc Motor ◽  
Food Delivery ◽  
Push Button ◽  
The Public ◽  
Human Needs ◽  
Design And Implementation ◽  
Long Time ◽  
Fast Food Restaurants ◽  
Dc Motor Driver

Abstract - On this day basic human needs are increasing. One example of this can be seen in terms of food, which until now has always been a major need. Fast food restaurants are in great demand by the public because cooking does not require a long time and so that many benefit from the presence of fast food restaurants. To improve service at fast food restaurants espesially for a waiter to efficient in providing food to customers we need research to be carried out on the design and implementation of robot servant prototypes in fast food restaurants automatically. This paper discusses the design and implementation of a prototype robot introduction of food at fast food restaurants automatically. The design begins with a prototype robot intended food delivery to customers in fast food restaurants. This robot moves with three wheels (2 front wheels are connected to the DC motor and the first freewheel that is behind) that moves through the track or line of trajectory to deliver food to the customer table. In addition, it is made also prototype restaurant accidentally in your own design and size that has been adjusted so as to simulate a fast-food restaurant. Prototype robot consists of several key components including the photodiode, push button switches, 3x4 matrix keypad, microcontroller AVR ATmega), DC motor driver and DC motor. The photodiode, push button switches and a 3x4 matrix keypad input (input) of the robotic system that will be processed by the microcontroller AVR ATmega 16 and will produce output (output) in the form of control of output devices such as motor driver DC. In this test, this robot can waiter function properly. For one time delivering food it takes 42 seconds to 1.13 minute. There was a time difference from the results of the trial due to a technical error from the robot while on the track.Keywords: ATmega16, Proportional Integral Derivative (PID), Photodiode Sensors, Robot Waiter

scholarly journals Implementation of a wireless charging system for mobile devices

2018 ◽  
Vol 24 (2) ◽  
pp. 229-234
Author(s):  
Julie C. Ogbulezie ◽  
Brian E Usibe ◽  
Godwin C Solomon
Keyword(s):  
Electromagnetic Induction ◽  
Wireless Charging ◽  
Switching System ◽  
Universal Serial Bus ◽  
Push Button ◽  
Mobile Wireless ◽  
Radio Frequency Radiation ◽  
Charging System ◽  
Button Switch ◽  
Frequency Radiation

This work describes the implementation of an RF based wireless charging system using RF transmitting and receiving modules. The objective of this work is to implement a system that has the ability to interact and communicate wirelessly within short range. This mobile wireless charging switching system consists of two sections, the transmitting and the receiving section. Each section was interfaced to 433MHz transmitting and receiving modules. The transmitter section of the wireless mobile charging system sends bursts of 433MHz signal through push button switch which is used in the initiation of the charging process to the receiver; when this signal is received by the receiver, it activates a relay which in turn switches on the internal power that comprises the backup battery, DC-to DC converter via a Universal Serial Bus (USB) port to the mobile device to begin charging. This work was able to achieve a wireless transfer of power for distance of about one metre between the transmitter and the receiver.Keywords: wireless charging, radio frequency radiation, electromagnetic induction, inductive coupling, microcontroller,

scholarly journals RANCANG BANGUN PROTOTYPE INTELLIGENT BOOTH KAKI LIMA (OTOMATISASI BUKA/TUTUP)

2019 ◽  
Vol 21 (1) ◽  
pp. 45-53
Author(s):  
Thomas Thomas ◽  
Wawan Nurmansyah
Keyword(s):  
Short Circuit ◽  
Dc Motor ◽  
Electronic Equipment ◽  
Push Button ◽  
The Road ◽  
Food And Beverage ◽  
Arduino Uno ◽  
Opening And Closing

A food and beverage booth owner who sells alongside the road, has difficulty when opening and closing the booth also when the rain comes suddenly - suddenly the owner has difficulty protecting electronic equipment from rainwater which can cause a short circuit, because the process is still done manually. To overcome this problem, a system with a microcontroller circuit using Arduino Uno and a DC motor can be made that can open and close the booth with a push button command that can facilitate the process which is still done manually and with a rain sensor circuit that can detect rain as an order to close the front of the booth to protect electronic equipment from rainwater. This system is implemented in an intelligent booth prototype to test whether the algorithm made can overcome the problems experienced by the booth owner.

scholarly journals Pembuatan Sistem Kontrol Sliding Door untuk Rumah Tinggal

2014 ◽  
Vol 10 (1) ◽  
pp. 73
Author(s):  
Sir Anderson
Keyword(s):  
Control System ◽  
Dc Motor ◽  
Open Loop ◽  
Control Circuit ◽  
Voltage Source ◽  
Large Space ◽  
Push Button ◽  
Loop Control ◽  
Circuit Components ◽  
The Right

The sliding door is a type of door that works by sliding the door to the right or to the left. The sliding door is a type of door that is suitable for use in a room with small volume, because the sliding door does not require a large space. lack the sliding door when the door has been closed, lack the sliding door when the door has been closed, there still exists a gap between the open doors and walls so that air can be in and out freely. with the construction of the door using the hinge mechanism, can minimize these conditions. To make the sliding door works automatically, the authors make a set of control system that uses an analog system and the concept of open-loop control system. “dc motor” is used as drive for the door and “central lock actuator” as locking doors. On the control circuit voltage source used is equal to 12V. Control circuit components used are double circuit push button (NO and NC), 12V relay 8 feet, limits switches, motor DC of power windows, central lock actuator. The components were assembled for the purpose of changing the polarity of the DC motor is regulated by a relay mechanism. By changing the polarity of the dc motor, the motor can rotate to the left and to the right, so the door is connected to the motor would be moves to open and close according to the motor movement.

scholarly journals Pengembangan aplikasi raspberry pi sebagai mesin survei kepuasan pelanggan

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Karsid Karsid ◽  
Rofan Aziz ◽  
Haris Apriyanto
Keyword(s):  
User Interface ◽  
Personal Computer ◽  
Graphical Form ◽  
Raspberry Pi ◽  
Satisfaction Survey ◽  
Graphic User Interface ◽  
Feedback Process ◽  
Push Button ◽  
Button Switch ◽  
Customer Satisfaction Survey

This customer satisfaction survey machine was created to facilitate the survey process that will be used in the framework of the feedback process. This feedback is used as an evaluation material to continuously improve servants. This machine is made of Raspberry Pi as a mini personal computer (PC), which is equipped with a push button switch button as a survey input, as well as a 32 inch TV screen as a display. The programming language used is python, with Graphic User Interface (GUI) using Tkinter programming. From the survey engine, it can be seen a report on the number of respondents taking the survey. In addition, this tool can record survey data and present it in graphical form as a report.

scholarly journals Pengembangan Modul dan Trainer Mikrokontroler

2020 ◽  
Vol 8 (1) ◽  
pp. 1-12
Author(s):  
Wildan Zulfikar Djunaedi
Keyword(s):  
Internet Of Things ◽  
Dc Motor ◽  
Servo Motor ◽  
Push Button

Abstrak – Proses belajar mengajar merupakan unsur yang sangat penting dalam dunia Pendidikan, level kompetensi seseorang untuk bersaing di dunia kerja dapat ditunjang dengan proses belajar mengajar yang baik serta sarana yang memadai. Teknologi terbaru memiliki banyak manfaat yang sangat berguna bagi kehidupan sehari – hari seperti teknologi mikrokontroler, teknologi wireless ataupun IoT (Internet of Things). Perancangan trainer dibuat berdasarkan kebutuhan SMK yang mencakup modul dasar dan modul komunikasi agar dapat digunakan untuk program - program yang lebih interaktif. Pengujian modul dasar seperti LED, push button, motor servo, motor dc, motor stepper, relay, lcd, sensor (jarak, suhu dan PIR) setiap program dapat berjalan dengan baik, serta modul komunikasi yang diujicobakan dengan menggunakan program desktop berjalan dengan baik. Pengujian kelayakan dilakukan dengan memberikan kuisoner pada siswa SMK kelas 12, pengolahan data dilakukan dengan menggunakan skala likert, dari 3 kategori yang diberikan lewat kuisoner untuk aspek “Kualitas Isi dan Tujuan” memiliki persentase 80,5% termasuk dalam kategori sangat setuju, untuk aspek “Kualitas Pembelajaran” memiliki persentase 80,1% termasuk dalam kategori sangat setuju, dan untuk aspek “Teknis” memiliki persentase 78,5% termasuk dalam kategori setuju.. Berdasarkan perolehan persentase diatas, dapat disimpulkan bahwa trainer yang dirancang dapat diterima oleh siswa SMK. Kata kunci : trainer, mikrokontroler, SMK, skala likert, wireless.

A Newly Designed 650kv Electron Microscope

1968 ◽  
Vol 26 ◽  
pp. 304-305
Author(s):  
K. Shiraishi ◽  
T. Katsuta ◽  
S. Ozasa ◽  
H. Todokoro
Keyword(s):  
Electron Microscope ◽  
High Voltage ◽  
Bright Field Image ◽  
Bright Field ◽  
Push Button ◽  
Condenser Lens ◽  
High Voltage Generator ◽  
Frequency Power ◽  
Better Than ◽  
Illuminating System

We have recently completed a newly designed 650KV electron microscope. An external view of this advanced instrument is shown in Figure 1. A symmetrical Cockcroft-Walton circuit has been adopted as the high voltage generator. The cathode is heated by high frequency power; a battery is not employed. The high voltage stability is better than 1 x 10-5/min.The sectional diagram of the column shown in Figure 2 is 420mm in diameter and 2750mm in height. The illuminating system consists of a double condenser lens and a magnetic alignment device. Dual deflector assemblies for dark and bright field images, selectable by push button, are built beneath the condenser lens. Two selectable stigmator power supplies are also provided for dark and bright field image operation.

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