The Ten Baht Coin Swap Machine with Warning System

Abstract

This paper aims to design and invent ten-baht coin swap machine and warning system to be used with Thai baht banknotes including twenty baht, fifty baht and one hundred baht banknotes. In addition, it can contain 1,400 ten bath coins. This machine operates with the function of sensor to measure the length of bank note. Arduino Mega 2560 microcontroller board can control operation system and display operating status on LCD. There are the capabilities of status alerts when coins run out and status alerts security warning through short message service function using SIM800L. This machine supports vending machines and the small and medium-sized enterprises which need security and warnings when the machine runs out of coins.