FPGA Based Vending Machine

A vending machine is a automated machine that provide items such as beverages, alcohol, cigarette, snacks, lottery tickets, train tickets to consumers automatically, after paying money by a credit card, or specially designed card is inserted into the machine. The requirements of the vending machines are increasing day by day in the modern world. The Field Programmable Gate Array (FPGA) based vending machine is flexible, reprogrammable, uses less power and faster response than micro-controller based vending machine. The vending machine accepts coins as inputs in any sequence and delivers products when required amount is deposited and gives back the change if entered amount is greater than the price of product. There are option of cancellation means a user can withdraw the request any time and entered money will be returned back without any product . The proposed algorithm is implemented in Very High Speed Integrated Circuit Hardware Description Language(VHDL). The proposed design is implemented on Xilinx Spartan-6 FPGA development board. The design is implemented The vending machine accepts coins as inputs in any sequence and delivers products when required amount is deposited and gives back the change if entered amount is greater than the price of product.