Hello,

I have a project of developing a vending machine in which the payment will be done by QR code and then that payment would be used as a trigger to actuate the desired motor to dispense the product.
Could someone help me understand how can I use QR code payments as a trigger for motor actuation?

Thanks

 

You would need a barcode scanner and a microcontroller of some sort. when the correct barcode is scanned have the microcontroller actuate the motor.