Desarrollo de una máquina expendedora de dispositivos electrónicos para la ESFOT

Abstract

The current project has as objective the development of an electronic devices vending machine to the ESFOT. This machine uses an embedded system and IoT. An Arduino Mega module, a multi-coin selector, an LCD, a matrix keyboard, an 8 relays module, 12VDC engines and some printed circuit boards, makes it. Product selection data goes to the Arduino Mega, the machine will continue receiving the customer’s payment and after that, it will vend the product. Arduino will check the motor’s sensors in order to know if they have vended. If the sensors do not exist or have worked in a wrong way, it is not possible to vend correctly. This work describes the characteristics of each device used to the development of the electronic devices vending machine. In addition, it defines the correct tools of both hardware and software that allow the building of this machine, and besides the respective programming. Moreover, operational tests are performed. Finally, conclusions and recommendations are included in the last section, which are abstracted from experience of building the machine.