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All Journal International Journal Software Engineering and Computer Science (IJSECS) Jurnal Teknik dan Science (JTS)
Florentinus Budi Setiawan
Sekolah Tinggi Ilmu Kesehatan Semarang
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering

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Perancangan Alat Inovasi pembacaan hasil ukur debit dan volume air kencing menggunakan wireless dan printer pada uroflowmetry Dinyo Mikananta Rifaco; Mohammad Rofi’i; Florentinus Budi Setiawan
Jurnal Teknik dan Science Vol. 4 No. 2 (2025): Juni : Jurnal Teknik dan Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/jts.v4i2.2104

Abstract

Urinary Tract Infections (UTIs) can be identified through several indicators, such as difficulty urinating, weak urine flow, and low urine volume. To enhance the diagnosis and monitoring of this condition, a wireless-based uroflowmeter equipped with a thermal printer has been developed. This device utilizes a YF-S401 flow sensor to measure urine flow rate and volume, with pulse outputs processed by an Arduino UNO microcontroller. A Bluetooth module (HC-05) is used for wireless data transmission to an Android-based application (developed using App Inventor), while the measurement results can also be printed via a thermal printer. Volume testing demonstrated low error rates (0.33% – 1.53%), and flow rate testing produced results close to actual values. The device successfully connected wirelessly to the application and printed data accurately, indicating that it is suitable for supporting uroflowmetry examinations.
12-Lead Electrocardiograph Calibrator Mahmud Ma'rufi; Imam Tri Harsoyo; Florentinus Budi Setiawan
International Journal Software Engineering and Computer Science (IJSECS) Vol. 5 No. 2 (2025): AUGUST 2025
Publisher : Lembaga Komunitas Informasi Teknologi Aceh (KITA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ijsecs.v5i2.4726

Abstract

The research develops and evaluates a 12-lead Electrocardiograph (ECG) calibrator using ESP32 microcontroller technology to enhance calibration precision in clinical environments. Healthcare facilities need accurate ECG signal recording through portable calibration devices that maintain ≤ 5% error tolerance. Previous calibrator designs lack unified integration of complete 12-lead functionality, extensive BPM ranges, and variable amplitude control within single portable units. The methodology incorporates hardware-software development, voltage measurements across three assessment points (charger module, ESP32 output, Nextion LCD), BPM validation at four operational settings, and waveform analysis (normal, square) with amplitude evaluation across multiple sensitivities. Experimental results demonstrate an average total error of 1.2% for BPM and amplitude measurements, maintaining voltage stability within ± 5% tolerance limits. Performance analysis validates device reliability for ECG calibration applications, showing optimal performance with square waveform configurations. The ESP32-based calibrator proves technically viable and clinically safe, providing cost-effective, high-precision alternatives to existing solutions. Future development opportunities include triangular waveform integration, Wi-Fi connectivity for remote operation, and rapid calibration initiation features.
Co-Authors Dinyo Mikananta Rifaco Imam Tri Harsoyo Mahmud Ma'rufi Mohammad Rofi’i