Smart vending machine based on SMS gateway for general transactions

This paper presents design and experimental studies of vending machine for office stationery Transactions. The advantage of the proposed vending machine i.e. Transaction can be done by using short message system (SMS), all transaction can be monitored online by owner by using Android, the vending machine has feature early warning system (EWS) when system in trouble, and it also equipped with battery backup when electricity cut off, No need to make special agreement with bank or telecommunication provider. The Smart Vending Machine is built by using common hardware component such as Arduino as controller, Wavecome as SMS Gateway module, Servos, Power Supply, Battery as power back up, Keypad and button as input, LCD 16×2 as Display. From the several test including normal transaction, online monitoring, and early warning system for electricity supply. The Smart Vending Machine was successful. And it has a big possibility to be mass production.