Indonesian Journal of Electrical Engineering and Computer Science Vol. 32, No. 1, October 2023, pp. 328~334 ISSN: 2502-4752, DOI: 10.11591/ijeecs.v32.i1.pp328-334  328 Journal homepage: http://ijeecs.iaescore.com User perception of a developed GCash cash-in and cash-out machine in the Philippines Mark Joseph B. Enojas 1 , Jane E. Morgado 1 , Hohn Lois Bongao 1 , Ruem G. Arribas 2 , Cedithlyn Damiles 3 , Karil Jan Zyra N. Talon 3 , Lorie May M. Turallo 3 1 Department of Electrical Engineering and Allied, Technological University of the Philippines Taguig, Taguig City, Philippines 2 Department of Mechanical Engineering and Allied, Technological University of the Philippines Taguig, Taguig City, Philippines 3 Departmen Bachelor of Engineering and Allied, Technological University of the Philippines Taguig, Taguig City, Philippines Article Info ABSTRACT Article history: Received Jan 23, 2023 Revised Jun 24, 2023 Accepted Jul 2, 2023 The use of cashless credits in the Philippines has grown since the pandemic has begun. However, the transitions to these changes using cashless transactions have to be addressed. Kiosks and other machines that offer cash- in have been significant, but a model that does not use transactions through banks can be possible which can offer both cash-in and cash-out transactions. In this paper, a developed machine that caters both GCash cash-in and cash- out has been evaluated based on users’ perception on functionality, acceptability, and usefulness. The machine is built with a graphical user interface (GUI) which is a programmed touch screen monitor, bill acceptor, and bills and coins dispenser. The functionality based on the 50 users’ perceptions resulted in 94% excellent in loading bills, 92% accuracy on receiving the cash-in amount less the charges, 92% in dispensing bills less the charges, and 72% faster than the usual speed of transaction. All the respondents agreed that the machine is very convenient and user-friendly, while 94% said that it is very useful and they wanted it in their area. The results suggest that the machine be deployed for public use and be reproduced. Keywords: Cash-in Cashless money transaction Cash-out Human-to-machine interface Vending machine This is an open access article under the CC BY-SA license. Corresponding Author: Mark Joseph B. Enojas Department of Electrical Engineering and Allied, Technological University of the Philippines Taguig Km. 14 East Service Road, Western Bicutan, Taguig City, Philippines Email: markjoseph_enojas@tup.edu.ph 1. INTRODUCTION Most of the transactions that involve money are now going cashless. In the Philippines, a lot of people utilize digital payments and money transfers such as GCash and Maya [1]–[3]. With these digital payments, one can pay bills, shop online, buy in both big and small stores, and even send money. It cannot be denied that society is moving from cash into cashless [4]–[8]. Indeed, today’s era is a transition from cash to cashless as several studies suggest [9]–[11]. Mobile banking will play a bigger role in these transitions in the future in which different governments try to adapt and even formulate policies for these changes [12]–[16]. Cash-in transaction can be defined as the way where a bill is converted into credits in the user’s GCash account. Cash-out on the other hand is the way in which credits in GCash are converted into bills. There are several ways in the Philippines in which a cash-in transaction can be done. Some of these are through over-the-counter through pawnshop, courier services, convenience stores, banks, remittance centers, and money transfer providers. Cash-out on the other hand can be done through over-the-counter in shopping malls, pawnshops, and other grocery stores. However, there are no available machines that could do both the cash-in and cash-out transaction for GCash other than automatic teller machines which use bank transfers [17]–[19].