I am trying to make an ATM machine with my arduino uno r3 and a servo, ultrasound sensor, lcd screen and a keypad but I do not know how to make the ATM dispense small rectanges (for quotes) cut out of cardboard.
ATM machines usually have motor driven wheels grip the material and when the motor is powered, will dispense the product. IF this is not what you have, then I can't help much.
Do you know how to make a servo dispense the cardboard. All the tutorials I saw showed only coins
Have you designed the mechanical part, yet? You need that long before you can automate the operation.
No sure about cardboard, but if you were using paper then you could probably use something like a printer pickup assembly.
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