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All Journal JURNAL ELEKTRO DAN INFORMATIKA SWADHARMA (JEIS) Technology and Informatics Insight Journal
Raka Dian Mahardi
Sekolah Tinggi Teknik Pati
Computer Science & IT

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DESAIN LAMPU DARURAT PORTABEL BERBASIS RANGKAIAN JOULE THIEF Muhammad 'Atiq; Nuri Nuri; Raka Dian Mahardi
JEIS: Jurnal Elektro dan Informatika Swadharma Vol 3, No 1 (2023): JEIS EDISI JANUARI 2023
Publisher : Institut Teknologi dan Bisnis Swadharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56486/jeis.vol3no1.256

Abstract

The main function of the portable emergency lamp design based on the joule thief circuit is to provide lighting when the power goes out so that it can support human activities in carrying out various jobs, especially at night. The method used in this study is a design and testing approach, starting from the selection of tools and materials to the implementation of the test. The results showed that the Joule Thief emergency lamp can operate at a voltage of 0.8 VDC with a current of 0.08 A and can turn on a 220 VAC LED. The first test was carried out on a 220 Vac 5watt LED with a power supply unit (PSU) instead of battery power. The second test was conducted on the charger module with the indicator flashing red when charging and blue when full. From the test it is known that the Joule Thief emergency lamp can work well and can be used as an emergency lamp when the electricity from the PLN goes out. This emergency lighting device uses commercial lamps so that it can be replaced easily as needed and can be charged when the battery is depleted.Fungsi utama desain lampu darurat portable berbasis rangkaian joule thief adalah memberikan penerangan pada saat listrik padam sehingga dapat menunjang aktivitas manusia dalam melakukan berbagai pekerjaan khususnya pada malam hari. Metode yang digunakan dalam penelitian ini adalah pendekatan desain dan pengujian, mulai dari pemilihan alat dan bahan sampai dengan pelaksanaan pengujian. Hasil penelitian menunjukkan lampu emergency Joule Thief dapat beroperasi pada tegangan 0,8 VDC dengan arus 0,08 A dan dapat menyalakan LED 220 VAC. Pengujian pertama dilakukan pada LED 220 Vac 5watt dengan power supplay unit (PSU) sebagai pengganti daya baterai. Pengujian kedua dilakukan pada modul pengisi daya dengan indikator menyala merah saat mengisi daya dan biru saat penuh. Dari pengujian diketahui bahwa lampu darurat Joule Thief dapat bekerja dengan baik dan dapat digunakan sebagai lampu darurat pada saat aliran listrik dari PLN padam. Perangkat lampu emergency ini menggunakan lampu komersial sehingga dapat diganti secara mudah sesuai kebutuhan serta dapat di charger saat baterai dalam kondisi habis.
Analisis Komparatif Protokol I2C, UART, dan SPI pada Sistem Mikrokontroler Berbasis Tinkercad Muh. Alaika Sulthonnudin; Muhammad Atiq; Raka Dian Mahardi; Rizal Agri Wahyuadi; Danang Hendrawan
Technology and Informatics Insight Journal Vol. 5 No. 2 (2026): TIIJ
Publisher : LP3M Universitas Putra Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32639/e8sh3t14

Abstract

The selection of a serial communication protocol affects pin efficiency, connection topology, and data-exchange behavior in embedded systems. This study compares I2C, UART, and SPI through a Tinkercad-based simulation experiment using two Arduino Uno boards as Master and Slave. Three scenarios were evaluated: I2C with a temperature sensor, UART with a PIR sensor, and SPI with a photoresistor. Data were observed through the Serial Monitor and Slave-side LED responses. All observed functional scenarios consistently transferred the intended sensor status. I2C provided efficient wiring through SDA and SCL, UART offered a simple point-to-point configuration at 9600 bps, while SPI required more signal lines for synchronous communication. The findings indicate that protocol selection should consider topology, pin availability, and application requirements. Hardware experiments are still required to quantify latency, throughput, and transmission errors.
Co-Authors Danang Hendrawan Muh. Alaika Sulthonnudin Muhammad 'Atiq Muhammad Atiq Nuri Nuri Rizal Agri Wahyuadi