Desarrollo de una máquina expendedora autónoma de componentes electrónicos básicos con dos métodos de pago, monedas y dinero electrónico para los estudiantes de Ingeniería Electrónica.

Abstract

A prototype of a vending machine of basic electronic components was implemented with two methods of payment, which can supply the most basic needs of the students, obtaining above all a substantial time saving in the process of replacing a damaged component during the development of the laboratory practice. The prototype maintains considerably low construction costs with respect to costs of acquiring a vending machine in the market, it maintains stability within the expected parameters and it is also built with resistant materials which helps remaining it operative for a long time, in addition it offers the possibility of being reprogrammed in order to vary prices and quantities of components to be sold. It poses an intuitive interface through a Nextion touch screen and therefore easy to use to make the purchase process fast and simple, which ensures that the user will obtain the product which has been paid for. Its ability to accept both physical and electronic payments, gives the prototype greater possibilities of success among a growing technology where digital media gains popularity day by day, the prototype has an electronic wallet which discriminates fake or foreign currencies different from de actual Ecuadorian currency, it also contains a GSM communication module to receive electronic payment and send notifications. Through the tests carried out, it is verified that the prototype is stable under conditions of continuous use, in addition it offers fairly short delivery times and the ability to deliver components in considerable quantities. It is recommended to improve the mechanism of classification and delivery of coins and provide it with a bill reception system.