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All Journal Indonesian Journal of Multidisciplinary Science
Kunto Wibowo
Faculty of Engineering, Gunadarma University, Depok, West Java
Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Public Health Social Sciences

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Designing Digital Combination Keys on Safes Kunto Wibowo; Bambang Harianto; Moohammad Karjadi
Indonesian Journal of Multidisciplinary Science Vol. 2 No. 3 (2022): Indonesian Journal of Multidisciplinary Science
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2951.162 KB) | DOI: 10.55324/ijoms.v2i3.300

Abstract

A digital combination lock is a key that works electronically and only people who know the code can open it and close it. By doing several combinations consisting of 4 digits, namely by pressing the numbers 0 to 9 on the keypad keys. The digital combination lock on the safe consists of a krndali encoder, decoder, comperator, timer and  shif register, also consists of a dc motor that serves to open and pop the safe door. The results of the trials that the safe door conducted when closing and opening it can be set using a potentiote with a lap time of between 1 to 5 seconds.
Co-Authors Bambang Harianto Moohammad Karjadi