iot-restaurant-nodemcu

introduction

This is a college assignment with the objective of make the payments of a restaurant with Internet of Things concepts.

This repo it's the code of the nodemcu and some reference links.

other parts of the project

1. App made with Ionic 4
2. Backend made with Django

description

The code works in the following fashion

1. The nodemcu connect to a wifi network via WiFiManager library
2. When the card is presented, we get the rfid number
3. We make a request to the backend to make a transaction with de rfid number
4. Handle the response
   • If the request return code 200 means that the transation was created without problems and we show the feedback for the client with the green light
   • If not, then the transaction wasn't created and we show the feedback for the client with the red light

reference links

We a custom pinout for this project following these articles

1. ESP32 com RFID: Controle de Acesso
2. MFRC522 RFID Reader Interfaced With NodeMCU
3. Wireless RFID Door Lock Using Nodemcu