Snack Vending Machine

Mohd Alif, Mohd Yusoff (2006) Snack Vending Machine. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The aim of this project is to design and built a snack vending machine that is capable of handling many kinds of new peripherals on allowing user to have easy access when using a snack vending machine. The snack vending machine is controlled by the 8051 microcontroller where it will monitor the system cycle and also the input and output operations of the vending machine. The scope of the project is to design a basic snack vending operation using a coin detector. The project consists of the hardware and the software design where the hardware design is divided into two parts which is the input and output operations to the microcontroller. The coins detector which has been emulated by a switching device and the snack push button is the input operations where it allows the user to operate with the vending machine. Meanwhile the output operation consists of the spiral ring snack holder, Liquid Crystal Display (LCD unit) and a 12Vdc motor to rotate the spiral ring. The LCD (Liquid Crystal Display) will display orders to the users in alphabetical character on how to operate the vending machine. It will also display the amount of coins inserted to the snack vending machine and the type of snack chosen by the user. For the software programming, the assembly language is used to interface all the peripherals to the 8051 microcontroller which will operate the system cycle of the vending machine.

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