Hearing Reaction Time Measurement Concentration Level Tool Integrated Android Smartphone Alat Pengukuran Tingkat Konsentrasi Pendengaran Reaksi Waktu Terintegrasi Smartphone Android
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Performance in a job is very important because it will have an impact on the assessment and productivity of an employee, one of the indicators for evaluating high performance is related to concentration, execution speed and high productivity of the employee. Concentration is needed in working to prevent fatal accidents. In this study, it is possible to monitor measurement results via a smartphone, namely by using the Bluetooth HC-05 sensor as an integration to a smartphone. With 8 pushbutton, Arduino UNO microncontroller, Bluetooth HC-05, 16x2 LCD, and Buzzer. This tool works alternately when the push button Start is pressed, the power from the power supply will provide an electric current to the microncontroller, and continue to be connected to the Bluetooth HC-05, then by providing pushbuttons pressing input. Each pressing instruction on the pushbutton provides a different sound output, consisting of sound output, High, Mid, and Low. And continue on the LCD, and can display the results of the input that has been processed by the microcontroller. The output results are in the form of the amount of time displayed on the LCD, the sound from the buzzer, and from a series of work tools and the output results can be monitored via android smartphone. The results of this study are the accuracy of the tool in each variable low 99%, mid 90%, high 92%. The average tool ranges from 2.44. The error is low 7,4%, mid 7,4%, high 7,6%.
 Z. F. M. Ramli, I. Wijayanto, and S. Hadiyoso, “Deteksi Kondisi Konsentrasi Berdasarkan Sinyal EEG dengan Stimulasi Menghafal Al-quran,” vol. 5, no. 3, pp. 4683–4690, 2018.
 N. C. Permana, E. C. Djamal, and A. Komarudin, “Deteksi Respon Konsentrasi Terhadap Rangsangan Suara Secara Real-Time Menggunakan Wavelet dan Support Vector Machine,” Semin. Nas. Apl. Teknol. Inf., pp. 23–28, 2017.
 “infodatin-kesja.pdf.” .
 N. K. Ni. Permatasari, A. Rusdiana, and Y. Ruhayati, “PENGEMBANGAN ALAT UKUR WAKTU REAKSI BERBASIS MICROCONTROLLER,” J. Terap. Ilmu Keolahragaan, 2018.
 L. Yue and S. Kefei, “Design of a General Reaction Time Test Instrument Based on Jump Motion,” pp. 584–587, 2013.
 N. B. and A. Gellaty, Pscychology Cognitive. 2005.
 B. Bin Dahlan, “Sistem Kontrol Penerangan Menggunakan Arduino Uno Pada Universitas Ichsan Gorontalo,” Ilk. J. Ilm., vol. 9, no. 3, p. 282, 2017.
 T. H. A. Cahyono and E. A. Suprayitno, “Alat Ukur Berat Badan, Tinggi Badan dan Suhu Badan di Posyandu Berbasis Android,” Elinvo (Electronics, Informatics, Vocat. Educ., vol. 3, no. 1, pp. 31–38, Jul. 2018.
 C. Platt, Encyclopedia of Electronic Components Volume 1 Resistors, Capacitors, Inductors, Switches, Encoders, Relays, Transistors. 2013.
 C. Platt and F. Jansson, Make : Electronic Components, vol. 3. .
 T. Elektro, U. Sam, R. Manado, and J. K. B. Manado, “Kotak Penyimpanan Uang Berbasis Mikrokontroler Arduino Uno,” J. Tek. Elektro dan Komput., vol. 7, no. 2, pp. 167–174, 2018.
 K. Moffett, “Buzzers,” Ecotone, vol. 6, no. 2, pp. 12–23, 2011.
 R. D. Risanty and L. Arianto, “Rancang Bangun Sistem Pengendalian Listrik Ruangan Dengan Menggunakan Atmega 328 Dan Sms Gateway Sebagai Media Informasi,” J. Sist. Inf., vol. 7, no. 2, pp. 1–10, 2015.