Capable of wending 12 products. Customer enters his phone number on LCD screen. He gets an OTP. Customer enters OTP. Machine accepts the order by LCD screen and pushes out the product in the tray for customer to pick up. The customer can maintain a wallet with the vending machine supplier or he can link his preferred wallet to the vending machine supplier. The transaction is debited from the customer wallet once goods are dispensed.
I worked on similar project. I need know more about the hardware that you use because is very important to project. Will be great work in this project. If you want contact me and tell me more about.