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All Journal Journal of Industrial Automation and Electrical Engineering
Rudi Mulya
Department of Electrical Engineering, Universitas Negeri Padang, Indonesia
Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Arduino Uno based Vein detection design using High Power LED (HPL) Rizki setiawan; Rudi Mulya
Journal of Industrial Automation and Electrical Engineering Vol. 2 No. 2 (2025): Vol 2 No 2 (2025): December 2025
Publisher : Department of Electrical Engineering Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jiaee.v2.i2.pp182-187

Abstract

Difficulty in locating veins often poses a challenge in medical procedures such as intravenous catheterization or blood sampling, especially in children, adolescents, adults, and the elderly. This study designed and developed a vein detection device based on an Arduino Uno, utilizing a high-power LED (HPL) as the primary light source for locating veins. The device is equipped with a TTP223 touch sensor as the LED activation trigger and a PWM module to adjust light intensity according to the user's skin characteristics. The testing process was conducted on various age groups (children, adolescents, adults, and the elderly), with results showing that the device can clearly display veins, particularly in adolescents, adults, and the elderly, with optimal light intensity above 900 lux. The lowest average intensity was found in the children's group, indicating the need for more adaptive intensity adjustments. The device demonstrated stable and responsive performance and can assist medical personnel in accelerating the process of vein detection in a non-invasive, practical, and economical manner.
Internet of Things based solar panel cooling and monitoring system Anjelika Febiola; Citra Dewi; Emilham Mirshad; Rudi Mulya
Journal of Industrial Automation and Electrical Engineering Vol. 2 No. 2 (2025): Vol 2 No 2 (2025): December 2025
Publisher : Department of Electrical Engineering Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jiaee.v2.i2.pp128-226

Abstract

Solar energy is one of the renewable energy sources that has great potential in Indonesia, due to its abundant availability and zero greenhouse gas emissions. However, the performance of solar panels can degrade due to high temperatures generated by continuous exposure to sunlight. This research aims to design and implement an effective cooling system to increase the output power of solar panels. The system is designed with a real time remote monitoring feature using the Blynk application, and is equipped with an automatic data logging  system  into  Google  Sheets.  The  cooling  mechanism  is carried out by spraying water onto the surface of the solar panel which is activated based on a predetermined temperature threshold value (set point). The test results show that the system is able to reduce  the  panel  temperature  by  5.46°C  and  increase  the  output power  by  1.76  W.  The  ratio  of  power  increase  to  temperature decrease is recorded at 3.1 W/°C, which proves that the system is effective   in   keeping   the   panel   temperature   below   40°C   and contributes significantly to the improvement of solar panel performance
Co-Authors Anjelika Febiola Citra Dewi Emilham Mirshad Rizki setiawan