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All Journal Jurnal Ilmiah Merpati (Menara Penelitian Akademika Teknologi Informasi) Jurnal SPEKTRUM TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Teknologi Informasi dan Ilmu Komputer Scientific Journal of Informatics Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) JUTIK : Jurnal Teknologi Informasi dan Komputer Jusikom : Jurnal Sistem Komputer Musirawas Jurnal Review Pendidikan dan Pengajaran (JRPP) Journal of Information Systems and Informatics Indonesian Journal of Electrical Engineering and Computer Science Logic : Jurnal Rancang Bangun Dan Teknologi Hexatech: Jurnal Ilmiah Teknik Jurnal Ilmiah Teknologi dan Komputer (JITTER) Lontar Komputer: Jurnal Ilmiah Teknologi Informasi Jurnal Ilmiah Teknologi dan Komputer (JITTER)
I Nyoman Piarsa
Program Studi Teknologi Informasi, Fakultas Teknik, Universitas Udayana
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Transportation Other

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Design of IoT-Based Smart Charging Power Supply for Pratima Security Cahaya Risna, Komang Sadewa; I Nyoman Piarsa; AA.Kt.Agung Cahyawan Wiranatha
JITTER: Jurnal Ilmiah Teknologi dan Komputer Vol. 6 No. 3 (2025): JITTER Vol.6, No.3, December 2025
Publisher : Program Studi Teknologi Informasi, Fakultas Teknik, Universitas Udayana

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

Abstract

A power supply is essential for the Pratima security system because it serves as the primary energy source that ensures all components of the Pratima security system can operate optimally, especially during power outages. This study designs a power supply system with a smart charging feature for the IoT-based Pratima security system. This system uses an ESP8266 microcontroller, current and voltage sensors, and is connected to the Telegram application to provide notifications when the 18650 battery is full. Unlike previous studies that utilize websites, this system offers a simpler and more efficient monitoring solution via Telegram. The goal is to maintain the quality of the 18650 battery, prevent overcharging, and provide a power reserve to keep the security system active. This study uses the Software Development Life Cycle (SDLC) method with a Waterfall model consisting of 5 stages: analysis, design, implementation, testing, and maintenance. The results of this study are expected to be an alternative power supply with a smart charging feature at an affordable price and can be applied to other IoT devices that require an automatic and efficient charging system.
Design of 4 servo robot arm with Blynk Control Putra, Willy; Piarsa, I Nyoman; Wibawa, Kadek Suar
Hexatech: Jurnal Ilmiah Teknik Vol. 5 No. 1 (2026): Hexatech: Jurnal Ilmiah Teknik (In Press)
Publisher : ARKA INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55904/hexatech.v5i1.1767

Abstract

The development of robotics technology today is experiencing rapid progress through innovations in various fields, such as the application of artificial intelligence (AI), advanced sensors, and autonomous control systems. Robots are now not only used in the industrial infrastructure sector, but also in the fields of health, transportation, agriculture, and everyday life to help humans complete various tasks. This study discusses the design of a robot arm with four servo motors based on an ESP8266 Wi-Fi microcontroller controlled through the Blynk application. The purpose of this study is to automate the movement of the robot arm in performing a task and to compare its performance with and without the use of a Pulse Width Modulation (PWM) controller PCA9685 module. The system development stages include design analysis, device design and assembly, movement programming, and system testing. The results show that the movement of the robotic arm without PCA9685 has an accuracy rate of 99.323%, while with PCA9685 it reaches 99.77%. The average accuracy percentage increased by 0.447% on the robot arm with the PCA9685 and reduced the complexity of the cables connected to the breadboard by 57.14%.
Co-Authors A. A. Raka Onny Diar Danur C. A.A.K. Agung Cahyawan Wiranatha AA.Kt.Agung Cahyawan Wiranatha Aditya Herlambang Aditya, Agung Dode Agung Jodi Pratama Aldi Pratama Anak Agung Ketut Agung Cahyawan Wiranatha Anak Agung Kompiang Oka Sudana Anak Agung Ngurah Hary Susila Angga Pratama Nugraha Arida Ferti Syafiandini Arsa, Dewa Made Sri Ayu Wirdiani Cahaya Risna, Komang Sadewa Darma, Made Dwika Junata Dewa Ayu Indah Cahya Dewi Dharma Krisna Putra, Kadek Dwi Putra Githa Dwi Rusjayanthi, Dwi Erha Syaifuddin Hassant’R Fathana, Adhitya Febe Niken Damayanti Febriyanti, Ni Made Dwi Frannata Wangsa, Jedy Goestaman G M Arya Sasmita Gede Bagas Aritama Gede Riska Wiradarma Gede Widya Dharma Geyge Andika Lesmana Gusti Agung Ayu Putri Gusti Ngurah Sanditya Riantama Hardinata, I Gede Arya I Gde Arya Aristha I Gede Bagus Premana Putra I Gede Bagus Premana Putra I Gede Galang Surya Prabawa I Gst Agung Mahendra Sedana Yoga I Ketut Adi Purnawan I ketut Gede Darma Putra I Made Ady Dharmadi I Made Agus Dwi Suarjaya I Made Aris Aditya Nugraha I Made Aris Satia Widiatmika I Made Arsa Suyadnya I Made Dharmawan Setiadi I Made Oka Mahendra Putra I Made Pastika Rahayu I Made Sukarsa I Made Suwija Putra I Made Widnyana I Nyoman Adi Wardiana I Putu Agung Bayupati I Putu Agus Eka Pratama I Putu Arditya Darmawan I Putu Arya Dharmaadi I Putu Satwika Putra I Wayan Agus Krisna Apriana I Wayan Agus Surya Darma I Wayan Nody Artha I Wayan Pande Agustiana Putra I Wayan Widarma Eka Putra I Wayan Yoga Wirangga Ida Bagus Putu Sudarma Putra Joysun Agape Sianturi Kadek Suar Wibawa Kadek Wahyu Mega Duta Komang Martadana Wijaya Linggar Sukarta, Erlangga Bayu Luh Gede Sri Handayani Made Santika Putra Made Toby Sathya Pratika Made Yudha Putra Mahendra Maharani, Ni Putu Berliana Maharani, Putu Ary Silvia Ni Kadek Dwi Rusjayanthi, Ni Kadek Ni Made Ika Marini Mandenni Ni Putu Sutramiani Ni Putu Viona Viandari Ni Wayan Wisswani Nur, Adji Mochamad Nyoman Agus Tria Surya Kurniawan Oka Sudana, A.A Kompiang Panji Wiratama Santoso Permana, Ketut Ananta Kevin Philipus Novenando M Weking Pradirta, Ida Bagus Made Lingga Prasetyo, Ryan Teguh Pratama, I Gde Putu Harry Putra Pratika, Made `Toby Sathya Prawira, I Gede Denis Yuda PUTRA, I GD. AGUS ARIMBAWA Putra, Willy Putu Bayu Suda Togantara Putu Denanta Bayuguna Perteka Putu Eka Suputra Putu Kurniawan Adi Krisna Putu Veda Andreyana Putu Wira Buana Riza Hisamuddin Rusjayanthi, Kadek Dwi Rusjayanthi, Ni Kadek Dwi Santoso, Panji Wiratama Sasmita, Gusti Made Arya Sitta Rahayu Suputra, Made Dwipa Hutamanu Ul Awal Prasetyo, Rizky Robby virandi aries prasetya Widiana Putra Winarta Widyani, Ni Putu Kerti Wiranatha, Anak Agung Ketut Agung Cahyawan