Objective : The idea behind this project is to build a cashless user-friendly Vending Machine which is also cost efficient and reliable.
Concept: Scan the RFID card Get input by the keypad Send the data to the Server Authenticate and balance check Wait for the transaction On successful transaction give the item to the user Show Remaining balance Close the session Display the processes via LCD
Technology Used : RFID (Radio Friquency IDentification) ESP32 Wi-Fi module for IOT Application
Features : Smart card based payment system Online user database Low cost Add new user or Recharge existing card over the internet Customizable Secure Hassle free
Components : NodeMCU Esp32 Board RFID card & Reader LCD 16x2 Display Module KEYPAD 4x4 Matrix DC GRAR MOTOR/Stepper Motor POWER SUPPLY (5v & 12v) LED STRIP Wires, Switch & AC Socket
Online Server : There’re two sections on the online database server On the User section a user can check his/her balance and other details On the Admin section the admin can ADD/DELETE/MODIFY any client Recharge a card can also be possible by the admin from the website
APPLICATION : Small shops Public places (bus stops, stations) Malls and shopping centers School, college and other institutions Offices Canteens Hotels and Restaurants