Article Per Year (5 Year)
p-Index From 2019 - 2024
0.659
P-Index
This Author published in this journals
All Journal Jurnal SImetri Rekayasa Journal of Telecommunication and Electrical Scientific
Lisa Adriana siregar
Universitas Harapan Medan
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
RANCANG BANGUN SISTEM PENGENDALI JARAK JAUH MENGGUNAKAN FREKUENSI RADIO HC-12 BERBASIS ANDROID Dinda Melati; Lisa Adriana siregar
Jurnal Simetri Rekayasa Vol 3 No 1 (2021): Edisi April 2021
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The development of electronic technology especially with regard to automatic control is increasing in line with the development of the science and the automation of this automatic control technology is applied to the different electronic devices used daily to further assist in human work, However many things the current remote control system still has a shortage of people having to use a cost report. such as a pulse or a packaged Internet data currently used using a gateway text or the Internet. For the time being, automatic designs in remote control systems that use modulation frequencies work on radio frequencies, 4.333 MHZ. Which enables it to turn on and off electronics that are commonly used in everyday life. Examples: fans, water pumps, and lights. This device activates the bluetooth using a smartphone which a frequency of hc-12 will read then be processed and received by arduino. With this deleted design, the prototype of the remote control system, made possible by artificial androids to shut down and activate the home smart electronic devices.
RANCANG BANGUN SISTEM KENDALI KELISTRIKAN MASJID AL-ISTIQOMAH MENGGUNAKAN PENERIMA HC-12 BERBASIS ARDUINO Febriansyah Putra; Ali Hanafiah Rambe; Lisa Adriana Siregar
Jurnal Simetri Rekayasa Vol 4 No 1 (2022): Edisi April 2022
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The current development of control and automatic system technology allows operators to easily turn on and off electronic devices remotely without having to make direct contact, this is very effective in saving time and helping one's work become easier. Currently electrical energy is a basic human need. However, the use of electrical energy is not used optimally, its use tends to be excessive, the cause is due to someone's negligence of an electrical device that forgot to turn it off. To overcome this problem, it is necessary to have an automatic control system that can control the switch to help minimize the waste of electrical energy. However, various kinds of automatic control system devices have drawbacks, including requiring an internet connection or using an SMS gateway so that they can be controlled remotely, which will increase spending on the budget for internet or credit needs every month. The method used in this design uses Arduino uno, HC – 12 module, ZMTC103C current sensor, and relay. This tool works when an instruction signal is received via the HC-12 module then the signal is forwarded to Arduino to turn on or turn off the electric device through a relay, the current sensor detects the condition of the electric device. From the results of testing the control system successfully turns on and off loads in the form of lights, fans, water pumps properly and can detect lights that go out.
Rancang Bangun Smart Locker Penitipan Barang Berbasis One-Time Password (OTP) Azmy Giovaniz; Lisa Adriana Siregar; Ahmad Yanie
Journal of Telecommunication and Electrical Scientific Vol 1 No 01 (2024): Journal of Telecommunication and Electrical Scientific (JTElS)
Publisher : Program Studi Teknik Elektro, Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24010/jtels.v1i01.868

Abstract

Pada umumnya, loker penitipan barang menggunakan kunci konvensional untuk mengamankan akses ke barang yang disimpan di dalamnya. Namun, hal ini memiliki kelemahan dalam keamanan dan efisiensi. Kunci konvensional rentan terhadap risiko kerusakan, duplikasi yang tidak sah, dan bahkan kehilangan saat penggunaan sehari-hari. Untuk mengatasi masalah ini, penggunaan metode keamanan yang lebih canggih dan handal diperlukan. Salah satu metode yang telah dikembangkan adalah penggunaan Kode One-Time Password (OTP). Hasil dari penelitian yang telah dilakukan ialah memakai ESP 32 sebagai pusat perintah loker dan komponen pendukung lainnya seperti LCD, keypad, relay, solenoid door lock Alat ini mempunyai supply UPS ( Uninterruptible Power Supply ) yang memberi tegangan listrik cadangan ketika sumber listrik utama mati, UPS ini memiliki tegangan output sebesar 12V dan memiliki kapasitas batrai 12.000 mAh yang dapat menghidupkan alat jika mati listrik selama 20 jam. ESP 32 dapat di implementasikan ke loker penitipan barang sebagai pengganti kunci konvensional yang rentan terhadap kerusakan dan kehilangan serta meningkatkan rasa aman saat menitipkan barang karena hanya orang yang memiliki kode OTP tersebut yang dapat mengakses barang yang di titipkan di loker penitipan barang.
Co-Authors Ahmad Yanie Ali Hanafiah Rambe Azmy Giovaniz Dinda Melati Febriansyah Putra