How Do Change Machines Work
A Change Machine Is a Device Used to Exchange One Form of Money for Another, Typically Paper Currency for Coins. Sensors in the Machine Detect the Type of Bill...
How Do Change Machines Work?
A change machine is a device used to exchange one form of money for another, typically paper currency for coins. Sensors in the machine detect the type of bill that is fed into it and relay this information to a micro-processor. The processor then sends commands to coin hoppers to dispense the appropriate coins.
How do change machines detect fake money?
Vending machines detect an infrared strip incorporated into modern U.S. bills, something that isn’t present in counterfeits. Bills above $2 have a thin thread of mylar woven into them, which is visible in ultraviolet light. Vending machines also look for the mylar.
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