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All Journal ACI (Acta Cardiologia Indonesiana) TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika
F Rahman
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Electrical & Electronics Engineering Medicine & Pharmacology

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Determining Factors that Influence Heart Hate Recovery (HRR) Result on Treadmill Stress Test F Rahman
ACI (Acta Cardiologia Indonesiana) Vol 3, No 1(S) (2017): Supplement, Abstracts of The 3rd InaPRevent 2017
Publisher : Faculty of Medicine, Public Health and Nursing Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/aci.27263

Abstract

Introduction: Stress exercise electrocardiogram is a valid diagnostic and prognostic tool for .....
RANCANG BANGUN PENDETEKSI KADAR BORAKS PADA LONTONG DENGAN METODE UJI TURMERIK MENGGUNAKAN SENSOR WARNA TCS3200 BERBASIS MIKROKONTROLER ARDUINO E Rosdiana; V A Kusumaningtyas; Kurniawan, Mutiara Fadillah; F Rahman
TEKTRIKA Vol 9 No 2 (2024): TEKTRIKA Vol.9 No.2 2024
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v9i2.8806

Abstract

Lontong is a traditional Indonesian rice-based food that is wrapped and boiled until cooked. It has a relativel  short shelf life at room temperature, typically lasting only 1 to 2 days before spoilage occurs. In an effort to prolong its shelf life, some individuals have illicitly used borax as a food additive, despite its prohibition due to serious health risks. This study presents the design and development of a borax detection device for lontong using a turmeric-based colorimetric test integrated with a TCS3200 color sensor and an Arduino UNO microcontroller. Samples were prepared with varying borax concentrations ranging from 0 g/g to 7 g/g. Turmeric paper was used as a reagent, which changes color from yellow to orange or brick red in the presence of borax. The TCS3200 sensor detects the color change and converts it into frequency signals, which are processed by the microcontroller. The estimated borax concentration is displayed on an LCD module. The system demonstrated detection reliability rates of 100%, 100%, 96%, 96%, 90%, 100%, 98%, and 96% corresponding to each borax concentration level.Key Words: borax, lontong, mikrokontroler, turmerik, sensor TCS3200.
Co-Authors E Rosdiana Kurniawan, Mutiara Fadillah V A Kusumaningtyas